VANGUARD INTERNATIONAL EQUITY INDEX FUND INC
497, 2000-05-03
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                   FORM N-1A

     REGISTRATION STATEMENT (NO. 33-32548) UNDER THE SECURITIES ACT OF 1933

                           PRE-EFFECTIVE AMENDMENT NO.
                        POST-EFFECTIVE AMENDMENT NO. 19
                                      AND

        REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940
                                AMENDMENT NO. 22

                   VANGUARD INTERNATIONAL EQUITY INDEX FUNDS
        (EXACT NAME OF REGISTRANT AS SPECIFIED IN DECLARATION OF TRUST)

                     P.O. BOX 2600, VALLEY FORGE, PA 19482
                    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICE)

                  REGISTRANT'S TELEPHONE NUMBER (610) 669-1000

                           R. GREGORY BARTON, ESQUIRE
                                  P.O. BOX 876
                             VALLEY FORGE, PA 19482


                 APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:
  AS SOON AS PRACTICABLE AFTER THIS REGISTRATION STATEMENT BECOMES EFFECTIVE.


IT IS PROPOSED THAT THIS AMENDMENT BECOME EFFECTIVE ON APRIL 28, 2000, PURSUANT
                         TO PARAGRAPH (B) OF RULE 485.


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- -------------------------------------------------------------------------------
<PAGE>

                                                             VANGUARD(R)
                                                             INTERNATIONAL STOCK
                                                             INDEX FUNDS

                                                             Prospectus
                                                             April 28, 2000

This prospectus contains
financial data for the
Funds through the
fiscal year ended
December 31, 1999.

VANGUARD EUROPEAN
STOCK INDEX FUND

VANGUARD PACIFIC STOCK
INDEX FUND

VANGUARD EMERGING
MARKETS STOCK INDEX
FUND

VANGUARD DEVELOPED
MARKETS INDEX FUND

VANGUARD TOTAL
INTERNATIONAL STOCK
INDEX FUND

                                         [MEMBERS OF THE VANGUARD GROUP(R) LOGO]



<PAGE>

VANGUARD INTERNATIONAL STOCK INDEX FUNDS
Prospectus
April 28, 2000

A Group of International Stock Index Mutual Funds

- --------------------------------------------------------------------------------
    CONTENTS
- --------------------------------------------------------------------------------
  1 AN INTRODUCTION TO INDEX FUNDS

  2 FUND PROFILES

     2 Vanguard European Stock Index Fund

     5 Vanguard Pacific Stock Index Fund

     8 Vanguard Emerging Markets Stock Index Fund

    12 Vanguard Developed Markets Index Fund

    14 Vanguard Total International Stock Index Fund

 14 MORE ON THE FUNDS

 24 THE FUNDS AND VANGUARD

 25 INVESTMENT ADVISER

 26 DIVIDENDS, CAPITAL GAINS, AND TAXES

 27 SHARE PRICE

 28 FINANCIAL HIGHLIGHTS

 32 INVESTING WITH VANGUARD

    32 Services and Account Features

    33 Types of Accounts

    34 Buying Shares

    36 Redeeming Shares

    40 Transferring Registration

    40 Fund and Account Updates

 GLOSSARY (inside back cover)
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
WHY READING THIS PROSPECTUS IS IMPORTANT

This  prospectus  explains the objective,  risks,  and strategies of each of the
Vanguard  International  Stock Index  Funds.  To  highlight  terms and  concepts
important  to  mutual  fund   investors,   we  have  provided   "Plain  Talk(R)"
explanations along the way. Reading the prospectus will help you to decide which
Fund, if any, is the right  investment  for you. We suggest that you keep it for
future reference.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
IMPORTANT NOTE
The Vanguard  European,  Pacific,  and Emerging  Markets  Stock Index Funds each
offer  two  separate  classes  of  shares:  Investor  and  Institutional.   This
prospectus offers the Funds' Investor Shares,  which have an investment  minimum
of $3,000  ($1,000 for IRAs) and are intended for individual  investors.  Please
call  Vanguard's  Institutional  Investor  Group at  1-800-523-1036  to obtain a
separate prospectus that offers the Funds'  Institutional  Shares as well as the
institutional   version  of  Vanguard   Developed   Markets  Index  Fund.  These
institutional  options have an  investment  minimum of $10 million and generally
are not  available  to  investors  who require  special  employee  benefit  plan
services.
     The Funds'  separate  share classes have different  expenses;  as a result,
their investment  performances will vary. UNLESS OTHERWISE NOTED, ALL REFERENCES
IN  THIS  PROSPECTUS  TO  FEES,  EXPENSES,  AND  INVESTMENT  PERFORMANCE  RELATE
SPECIFICALLY TO INVESTOR SHARES.
- --------------------------------------------------------------------------------


NEITHER  THE  SECURITIES  AND  EXCHANGE  COMMISSION  NOR  ANY  STATE  SECURITIES
COMMISSION HAS APPROVED OR  DISAPPROVED  OF THESE  SECURITIES OR PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

<PAGE>

1

AN INTRODUCTION TO INDEX FUNDS

WHAT IS INDEXING?
An index is an unmanaged group of securities  whose overall  performance is used
as a  standard  to  measure  investment  performance.  An index  (or  "passively
managed")  fund tries to track,  as closely as possible,  the  performance of an
established target index. The fund does this by holding all, or a representative
sample,  of the securities  that comprise the index.  Keep in mind that an index
fund has operating  expenses and  transaction  costs,  while a market index does
not. Therefore, an index fund, while expected to track its target index closely,
typically will be unable to match the performance of the index exactly.
     Stock index  funds may seek to track  indexes  that hold a certain  type of
stock--such as growth or value,  small-cap or large-cap,  or those from just one
industry--or  they may seek to track  indexes that consist of a broader range of
stocks--for example, the entire foreign stock market.
     Index funds are not  actively  managed by  investment  advisers who buy and
sell  securities  based on research and  analysis in an attempt to  outperform a
particular  benchmark  or the  market as a whole.  Rather,  index  funds  simply
attempt to mirror what the target index does, for better or worse.

WHAT INDEX FUNDS DOES VANGUARD OFFER?
Vanguard  offers a variety of stock (both U.S.  and  international),  bond,  and
balanced index funds.  This prospectus  provides  information  about  Vanguard's
International  Stock  Index  Funds.  There are five such  Funds  offered in this
prospectus,   each  of  which  seeks  to  track  a  different   segment  of  the
international stock market:

- --------------------------------------------------------------------------------
FUND                                       SEEKS TO TRACK
- --------------------------------------------------------------------------------
Vanguard European Stock Index Fund         European stock markets
Vanguard Pacific Stock Index Fund          Australian and Far East
                                            stock markets
Vanguard Emerging Markets Stock            13 emerging stock markets in
 Index Fund                                 Europe, Asia, Africa, and
                                            Latin America
Vanguard Developed Markets Index Fund      European, Australian, and Far
                                            East stock markets
Vanguard Total International Stock         European, Australian, Far East,
 Index Fund                                 and 13 emerging stock
                                            markets in Europe, Asia,
                                            Africa, and Latin America
- --------------------------------------------------------------------------------

     This prospectus contains profiles that summarize key features of each Fund.
Following  the profiles,  there is important  additional  information  about the
Funds.

<PAGE>

2

FUND PROFILE--
VANGUARD(R) EUROPEAN STOCK INDEX FUND

The following  profile  summarizes key features of Vanguard European Stock Index
Fund.

INVESTMENT OBJECTIVE
The  Fund  seeks  to  match  the  performance  of  the  Morgan  Stanley  Capital
International (MSCI) Europe Index.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks  included in the MSCI Europe  Index.  The MSCI Europe Index is
made up of approximately  550 common stocks of companies  located in 15 European
countries--mostly in the United Kingdom,  France,  Germany, and the Netherlands,
(which  comprised  29%, 15%, 14%, and 8% of the Index's  market  capitalization,
respectively,  as of March 31, 2000), as well as in Austria,  Belgium,  Denmark,
Finland, Ireland, Italy, Norway, Portugal,  Spain, Sweden, and Switzerland.  For
more information about passive management,  see "Indexing Methods" under MORE ON
THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. The Index's,
     and therefore the Fund's, heavy exposure to four countries (United Kingdom,
     France,  Germany, and the Netherlands)  involves a higher degree of country
     risk than that of more geographically diversified international funds.
- -    Regional  risk,   which  is  the  chance  that  an  entire   region--namely
     Europe--will be hurt by political troubles,  financial problems, or natural
     disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
and five calendar years and since inception  compare with those of a broad-based
securities  market index. Keep in mind that the Fund's past performance does not
indicate how it will perform in the future.

<PAGE>

3

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1991          12.40%
                              1992          -3.32%
                              1993          29.13%
                              1994           1.88%
                              1995          22.28%
                              1996          21.26%
                              1997          24.23%
                              1998          28.86%
                              1999          16.62%
              ----------------------------------------------------
              Return figures do not reflect the annual account
              maintenance fee imposed on accounts with balances of
              less than $10,000, or the transaction fee imposed on
              purchases prior to April 1, 2000. If these amounts
              were reflected, returns would be less than those
              shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 20.37%  (quarter  ended March 31, 1998) and the lowest  return for a
quarter was -14.41% (quarter ended September 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard European Stock
        Index Fund**              16.62%       22.58%            14.61%
      MSCI Europe Index           15.77        22.27             14.78
      -------------------------------------------------------------------------
       *June 18, 1990.
      **Return figures do not reflect the annual account maintenance fee
        imposed on accounts with balances of less than $10,000, or the
        transaction fee imposed on purchases prior to April 1, 2000.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None
      Account Maintenance Fee (for accounts under $10,000):         $10/year*

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.22%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.07%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.29%

      *The account maintenance fee will be deducted from your annual
       distribution of the Fund's dividends. If your distribution is less
       than the fee, fractional shares will be automatically redeemed to make
       up the difference.

<PAGE>

4

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- -------------------------------------------------
   1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
     $30         $93       $163         $368
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.


- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $3,000; $1,000 for IRAs and custodial
                                        accounts for minors
INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    Europe

INCEPTION DATE                          VANGUARD FUND NUMBER
June 18, 1990                           079

NET ASSETS AS OF DECEMBER 31, 1999      CUSIP NUMBER
$6.1 billion                            922042205

SUITABLE FOR IRAS                       TICKER SYMBOL
Yes                                     VEURX
- --------------------------------------------------------------------------------

<PAGE>

5

FUND PROFILE--
VANGUARD(R) PACIFIC STOCK INDEX FUND

The following  profile  summarizes key features of Vanguard  Pacific Stock Index
Fund.

INVESTMENT OBJECTIVE
The Fund seeks to match the performance of the MSCI Pacific Free Index.*

*The  designation  "Free" in the name of the Index refers to the securities that
 the Index  tracks.  Some  countries  restrict  foreign  investment  in  certain
 industries, so only stocks that can be bought freely by a fund are tracked.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks included in the MSCI Pacific Free Index. The MSCI Pacific Free
Index consists of approximately  420 common stocks of companies located in Japan
(which comprised 82% of the Index's market capitalization as of March 31, 2000),
Australia,  Hong Kong, New Zealand,  and Singapore.  For more information  about
passive management, see "Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. The Index's,
     and therefore the Fund's,  heavy exposure to Japan involves a higher degree
     of country risk than that of more geographically  diversified international
     funds.
- -    Regional  risk,  which is the  chance  that an  entire  region--namely  the
     Pacific region--will be hurt by political troubles,  financial problems, or
     natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
and  five  years  and  since  inception  compare  with  those  of a  broad-based
securities  market index. Keep in mind that the Fund's past performance does not
indicate how it will perform in the future.

<PAGE>

6

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1991          10.65%
                              1992         -18.17%
                              1993          35.46%
                              1994          13.04%
                              1995           2.75%
                              1996          -7.82%
                              1997         -25.67%
                              1998           2.41%
                              1999          57.05%
              ----------------------------------------------------
              Return figures do not reflect the annual account
              maintenance fee imposed on accounts with balances of
              less than $10,000, or the transaction fee imposed on
              purchases prior to April 1, 2000. If these amounts
              were reflected, returns would be less than those
              shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 26.50% (quarter ended December 31, 1998) and the lowest return for a
quarter was -20.69% (quarter ended December 31, 1997).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Pacific Stock
       Index Fund**               57.05%       2.52%              3.20%
      MSCI Pacific Free Index     56.38        2.39               3.08
      -------------------------------------------------------------------------
       *June 18, 1990.
      **Return figures do not reflect the annual account maintenance fee
        imposed on accounts with balances of less than $10,000, or the
        transaction fee imposed on purchases prior to April 1, 2000.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None
      Account Maintenance Fee (for accounts under $10,000):         $10/year*

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.31%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.06%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.37%

      *The account maintenance fee will be deducted from your annual
       distribution of the Fund's dividends. If your distribution is less
       than the fee, fractional shares will be automatically redeemed to make
       up the difference.

<PAGE>

7

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
    $38        $119       $208         $468
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $3,000; $1,000 for IRAs and custodial
                                        accounts for minors
INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    Pacific

INCEPTION DATE                          VANGUARD FUND NUMBER
June 18, 1990                           072

NET ASSETS AS OF DECEMBER 31, 1999      CUSIP NUMBER
$2.5 billion                            922042106

SUITABLE FOR IRAS                       TICKER SYMBOL
Yes                                     VPACX
- --------------------------------------------------------------------------------

<PAGE>

8

FUND PROFILE--
VANGUARD(R) EMERGING MARKETS STOCK INDEX FUND

The following profile summarizes key features of Vanguard Emerging Markets Stock
Index Fund.

INVESTMENT OBJECTIVE
The Fund seeks to match the  performance  of the Select  Emerging  Markets  Free
Index.*

*The  designation  "Free" in the name of the Index refers to the securities that
 the Index  tracks.  Some  countries  restrict  foreign  investment  in  certain
 industries, so only stocks that can be bought freely are tracked.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks included in the Select Emerging Markets Free Index. The Select
Emerging  Markets  Free  Index  includes  approximately  500  common  stocks  of
companies  located in emerging  markets around the world.  As of March 31, 2000,
the largest markets covered in the Index were Mexico,  Brazil,  and South Africa
(which  comprised  16%,  14%,  and  13% of the  Index's  market  capitalization,
respectively).  Other countries represented in the Index included Argentina, the
Czech Republic,  Greece, Hungary,  Indonesia,  Israel, the Philippines,  Poland,
Thailand,  Turkey,  Hong Kong, and Singapore.  MSCI administers the Select Index
exclusively for Vanguard.  For more information  about passive  management,  see
"Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. Country risk
     is especially high for funds that focus on stocks in emerging markets.  The
     Index's,  and therefore the Fund's,  heavy exposure to Mexico,  Brazil, and
     South  Africa  involves a higher  degree of country  risk than that of more
     geographically diversified international funds.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
and five  calendar  years  and  since  inception  compare  with  those of both a
broad-based  securities  market index and the Fund's target index.  Keep in mind
that the Fund's past  performance  does not  indicate how it will perform in the
future.

<PAGE>

9

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1995           0.56%
                              1996          15.83%
                              1997         -16.82%
                              1998         -18.12%
                              1999          61.57%
              ----------------------------------------------------
              Return figures do not reflect the annual account
              maintenance fee imposed on accounts with balances of
              less than $10,000, or the transaction fee imposed on
              purchases and redemptions. If these amounts were
              reflected, returns would be less than those shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 28.32% (quarter ended December 31, 1999) and the lowest return for a
quarter was -21.52% (quarter ended June 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Emerging Markets
       Stock Index Fund**         59.96%       4.88%             6.03%
      MSCI Emerging Markets
       Free Index                 66.40        2.00              3.69
      Select Emerging Markets
       Free Index+                60.86        4.81              4.93
      -------------------------------------------------------------------------
       *May 4, 1994.
      **Return figures do not reflect the annual account maintenance fee
        imposed on accounts with balances of less than $10,000, but do
        reflect the 0.5% transaction fee imposed on purchases and redemptions.
       +The Select Emerging Markets Free Index is administered by MSCI
        exclusively by Vanguard.
      -------------------------------------------------------------------------

<PAGE>

10

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                     0.5%*
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                  0.5%**
      Exchange Fee:                                                      None
      Account Maintenance Fee (for accounts under $10,000):         $10/year+

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.32%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.26%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.58%

      *The transaction fee on purchases is deducted from all purchases
       (including exchanges from other Vanguard funds) but not from
       reinvested dividends and capital gains.
     **The redemption fee applies to all redemptions (sales or exchanges);
       it is deducted from redemption proceeds, and retained by the Fund.
      +The account maintenance fee will be deducted from your annual
       distribution of the Fund's dividends. If your distribution is less
       than the fee, fractional shares will be automatically redeemed to make
       up the difference.

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year,  that operating  expenses  remain the same, and that you redeem all your
shares at the end of each period.

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
   $161        $292       $434          $849
- -------------------------------------------------

     You would pay the following expenses if you did not redeem your shares (the
difference  being that the Fund's 0.5%  redemption fee would not apply to any of
the periods below, as it would to those above):

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
   $109        $235       $372          $772
- -------------------------------------------------

     THESE  EXAMPLES  SHOULD NOT BE CONSIDERED TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

<PAGE>

11

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $3,000; $1,000 for IRAs and custodial
                                        accounts for minors
INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    EmerMkt

INCEPTION DATE                          VANGUARD FUND NUMBER
May 4, 1994                             533

NET ASSETS AS OF DECEMBER 31, 1999      CUSIP NUMBER
$1.1 billion                            922042304

SUITABLE FOR IRAS                       TICKER SYMBOL
Yes                                     VEIEX
- --------------------------------------------------------------------------------

<PAGE>

12

FUND PROFILE--
VANGUARD(R) DEVELOPED MARKETS INDEX FUND

The following  profile  summarizes  key features of Vanguard  Developed  Markets
Index Fund.

INVESTMENT OBJECTIVE
The Fund seeks to track the  performance  of the MSCI Europe,  Australasia,  Far
East (EAFE) Index.

INVESTMENT STRATEGIES
The Fund employs a "passively managed"--or  index--investment approach. The Fund
seeks to track the  performance of the MSCI EAFE Index by investing in two other
Vanguard  funds--the European Stock Index Fund and the Pacific Stock Index Fund.
These other Vanguard  funds have the respective  objectives of tracking the MSCI
Europe Index and the MSCI Pacific Free Index,  which together  comprise the MSCI
EAFE Index.  The Fund allocates all or  substantially  all of its assets between
the  European  Stock  Index Fund and the  Pacific  Stock Index Fund based on the
market capitalization of European and Pacific stocks in the MSCI EAFE Index. The
MSCI EAFE Index includes  approximately 1,000 common stocks of companies located
in Europe, Australia, Asia, and the Far East. For more information about passive
management, see "Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles, financial problems, or natural disasters.
- -    Regional risk, which is the chance that an entire  region--either Europe or
     the Far East--will be hurt by political troubles,  financial  problems,  or
     natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The Fund began operations on May 5, 2000, so performance  information (including
annual total returns and average  annual total returns) for a full calendar year
is not yet available.

<PAGE>

13

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based on  estimated  amounts for the current  fiscal  year.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None
      Account Maintenance Fee (for accounts under $10,000):         $10/year*

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Indirect Operating Expenses:                                         **

      *The account maintenance fee will be deducted from your annual
       distribution of the Fund's dividends. If your distribution is less
       than the fee, fractional shares will be automatically redeemed to make
       up the difference.
     **Although Developed Markets Index Fund is not expected to incur any net
       expenses directly, the Fund's shareholders indirectly bear the expenses
       of the underlying Vanguard funds in which the Fund invests. See THE
       FUNDS AND VANGUARD. It is estimated that the Fund's indirect expense
       ratio for its first fiscal year, based on its underlying investments,
       will be 0.30%.

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- ------------------------
  1 YEAR       3 YEARS
- ------------------------
   $35          $110
- ------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $3,000; $1,000 for IRAs and custodial
                                        accounts for minors
INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    DevMkt

INCEPTION DATE                          VANGUARD FUND NUMBER
May 5, 2000                             227

SUITABLE FOR IRAS                       CUSIP NUMBER
Yes                                     921909701
- --------------------------------------------------------------------------------

<PAGE>

14

FUND PROFILE--
VANGUARD(R) TOTAL INTERNATIONAL STOCK INDEX FUND

The following  profile  summarizes key features of Vanguard Total  International
Stock Index Fund.

INVESTMENT OBJECTIVE
The Fund seeks to match the  performance  of the Total  International  Composite
Index. The Total  International  Composite Index is a combination of the indexes
tracked by the European, Pacific, and Emerging Markets Stock Index Funds.

INVESTMENT STRATEGIES
The Fund seeks to track the  performance  of the Total  International  Composite
Index by investing in three other Vanguard funds--the European Stock Index Fund,
the Pacific Stock Index Fund, and the Emerging  Markets Stock Index Fund.  These
other Vanguard funds have the respective  objectives of tracking the MSCI Europe
Index,  the MSCI Pacific Free Index, and the Select Emerging Markets Free Index,
which  together  comprise  the Total  International  Composite  Index.  The Fund
allocates  all or  substantially  all of its assets  between the European  Stock
Index Fund, the Pacific Stock Index Fund,  and the Emerging  Markets Stock Index
Fund based on the market  capitalization  of  European,  Pacific,  and  emerging
markets stocks in the Total International Composite Index. The Index is a market
capitalization  weighted  index that  combines the MSCI Europe  Index,  the MSCI
Pacific Free Index, and the Select Emerging Markets Free Index. MSCI administers
the  Index  exclusively  for  Vanguard.   For  more  information  about  passive
management, see "Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles, financial problems, or natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
calendar  year and since  inception  compare  with  those of both a  broad-based
securities  market  index and the  Fund's  target  index.  Keep in mind that the
Fund's past performance does not indicate how it will perform in the future.

<PAGE>

15

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1997          -0.77%
                              1998          15.60%
                              1999          29.92%
              ----------------------------------------------------
              Return figures do not reflect the annual account
              maintenance fee imposed on accounts with balances of
              less than $10,000, or the transaction fee imposed on
              purchases prior to April 1, 2000. If these amounts
              were reflected, returns would be less than those
              shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 20.49% (quarter ended December 31, 1998) and the lowest return for a
quarter was -14.53% (quarter ended September 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                           1 YEAR          SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Total International
       Stock Index Fund**                  29.92%               11.64%
      MSCI EAFE + Emerging Markets
       Free Index                          30.33                12.11
      Total International Composite
       Index+                              28.13                11.30
      -------------------------------------------------------------------------
       *April 29, 1996.
      **Return figures do not reflect the annual account maintenance fee
        imposed on accounts with balances of less than $10,000, or the
        transaction fee imposed on purchases prior to April 1, 2000.
       +Consists of the MSCI EAFE Index and the Select Emerging Markets Free
        Index. This index is administered by MSCI exclusively for Vanguard.
      -------------------------------------------------------------------------

<PAGE>

16

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None
      Account Maintenance Fee (for accounts under $10,000):         $10/year*

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Indirect Operating Expenses:                                         **

      *The account maintenance fee will be deducted from your annual
       distribution of the Fund's dividends. If your distribution is less
       than the fee, fractional shares will be automatically redeemed to make
       up the difference.
     **Although Total International Stock Index Fund is not expected to incur
       any net expenses directly, the Fund's shareholders indirectly bear the
       expenses of the underlying Vanguard funds in which the Fund invests.
       See THE FUNDS AND VANGUARD. The Fund's indirect expense ratio, based
       on its underlying investments, was 0.34% as of December 31, 1999.

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- -------------------------------------------------
   1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
    $35         $110       $193          $434
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $3,000; $1,000 for IRAs and custodial
                                        accounts for minors
INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    TotIntl

INCEPTION DATE                          VANGUARD FUND NUMBER
April 29, 1996                          113

NET ASSETS AS OF DECEMBER 31, 1999      CUSIP NUMBER
$2.6 billion                            921909602

SUITABLE FOR IRAS                       TICKER SYMBOL
Yes                                     VGTSX
- --------------------------------------------------------------------------------

<PAGE>

17

MORE ON THE FUNDS
The   following   sections   discuss  other   important   features  of  Vanguard
International   Stock   Index   Funds,    including   indexing   methods,   fund
characteristics,  costs and market-timing,  fund turnover,  and other investment
policies and risks.

WHY INVEST IN INDEX FUNDS?
Index funds appeal to many investors for a number of reasons:
- -    Diversification.  Index  funds  generally  invest in a  diversified  mix of
     companies and industries.
- -    Relative  consistency.  Index  funds  typically  track the  performance  of
     relevant market  benchmarks more closely than comparable  actively  managed
     funds do.
- -    Low cost.  Index  funds do not have  many of the  expenses  of an  actively
     managed  fund--such  as  research--and  keep  trading  activity,  and  thus
     brokerage commissions, to a minimum.
- -    Low  realization  of capital gains.  Because an index fund typically  sells
     securities  only to respond to redemption  requests or to adjust the number
     of shares it holds to  reflect a change in its  target  index,  the  fund's
     turnover  rate--and thus its realization of capital  gains--is usually very
     low.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                             THE COSTS OF INVESTING

Costs are an important  consideration in choosing a mutual fund.  That's because
you, as a shareholder,  pay the costs of operating a fund,  plus any transaction
costs  associated with the fund's buying and selling of securities.  These costs
can erode a substantial  portion of the gross income or capital  appreciation  a
fund achieves. Even seemingly small differences in expenses can, over time, have
a dramatic effect on a fund's performance.
- --------------------------------------------------------------------------------

INDEXING METHODS
     Some index funds hold each stock found in their target indexes in about the
same proportions as represented in the indexes themselves.
     Other index funds may use a different  selection process.  Because it would
be very  expensive to buy all of the stocks held in certain  indexes (the Select
Emerging Markets Free Index, for example,  includes  approximately  500 stocks),
funds  tracking  these  larger  indexes  use a  "sampling"  technique.  Using  a
sophisticated  computer program,  these funds invest in stocks that will, in the
aggregate,  recreate  the key  characteristics  of  their  target  indexes.  For
instance,  if 10% of the market  capitalization  of the MSCI  Europe  Index were
attributed  to companies in Germany,  Vanguard  European  Stock Index Fund would
invest  about 10% of its assets in stocks of German  issuers.  Furthermore,  the
Fund would construct a German portfolio whose size and industry  weightings,  as
well as average financial characteristics,  approximated the German component of
the MSCI Europe Index. The European,  Pacific,  and Emerging Markets Stock Index
Funds each employ this sampling method of indexing.
     While each Fund  attempts  to track the  performance  of its target  index,
there  is no  guarantee  that  securities  selected  for the Fund  will  provide
investment performance exactly matching that of the index.
     Yet another  indexing  approach is to invest in other index funds that seek
to track subsets of a target index. The Total International Stock Index Fund and
Developed  Markets Index Fund both use this "fund of funds" approach,  which can
be very cost-effective and efficient

<PAGE>

18

when starting an index fund from  scratch.  For example,  the Developed  Markets
Index Fund seeks to track the performance of the MSCI EAFE Index by investing in
two other  Vanguard  funds--the  European Stock Index Fund and the Pacific Stock
Index  Fund.  These  other  Vanguard  funds have the  respective  objectives  of
tracking the MSCI Europe Index and the MSCI Pacific Free Index,  which  together
comprise the MSCI EAFE Index. The Fund allocates its assets between the European
Stock  Index  Fund  and  the  Pacific  Stock  Index  Fund  based  on the  market
capitalization of European and Pacific stocks in the MSCI EAFE Index.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                                 "FUND OF FUNDS"

The term "fund of funds" is used to  describe  a mutual  fund that  pursues  its
objective by investing in other mutual funds rather than in individual stocks or
bonds.  A fund of funds may charge for its own direct  expenses,  in addition to
bearing a proportionate share of the expenses charged by the underlying funds in
which it invests. Funds of funds are best suited for long-term investors.
- --------------------------------------------------------------------------------

     To track their  target  indexes as closely as  possible,  the  European and
Pacific  Stock Index Funds  attempt to remain fully  invested in foreign  stocks
included in their particular  indexes.  Each Fund intends to invest at least 95%
of its total  assets in the stocks of its target  index.  The  Emerging  Markets
Stock  Index  Fund  normally  invests  95% of its total  assets in stocks of its
target index, holding the remaining 5% in cash reserves to meet daily redemption
requests.  The Total  International  Stock and  Developed  Markets  Index  Funds
normally hold 100% of their assets in shares of their underlying funds
- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                      THE RISKS OF INTERNATIONAL INVESTING

Because  foreign  stock  markets  operate  differently  from  the  U.S.  market,
Americans  investing  abroad will encounter risks not typically  associated with
U.S.  companies.  For  instance,  foreign  companies are not subject to the same
accounting,  auditing,  and financial  reporting standards and practices as U.S.
companies;  and  their  stocks  may not be as liquid  as those of  similar  U.S.
companies.  In  addition,  foreign  stock  exchanges,   brokers,  and  companies
generally  have  less   government   supervision   and  regulation   than  their
counterparts in the United States. These factors, among others, could negatively
impact the returns Americans receive from foreign investments.
- --------------------------------------------------------------------------------

[FLAG] EACH FUND IS SUBJECT TO STOCK MARKET RISK, WHICH IS THE CHANCE THAT STOCK
     PRICES OVERALL WILL DECLINE OVER SHORT OR EVEN LONG PERIODS.  STOCK MARKETS
     TEND TO MOVE IN  CYCLES,  WITH  PERIODS  OF RISING  PRICES  AND  PERIODS OF
     FALLING PRICES.
       IN ADDITION, INVESTMENTS IN FOREIGN  STOCK MARKETS  CAN BE  RISKIER  THAN
     U.S. STOCK INVESTMENTS. THE PRICES  OF INTERNATIONAL  STOCKS AND THE PRICES
     OF U.S. STOCKS HAVE OFTEN MOVED IN OPPOSITE DIRECTIONS. THESE PERIODS HAVE,
     IN THE PAST, LASTED FOR AS LONG AS SEVERAL YEARS.

<PAGE>

19

     To illustrate the volatility of international  stock prices,  the following
table shows the best, worst, and average total returns for foreign stock markets
over various periods as measured by the MSCI EAFE Index, a widely used barometer
of international market activity. (Total returns consist of dividend income plus
change in market price.) Note that the returns shown do not include the costs of
buying  and  selling  stocks  or other  expenses  that a  real-world  investment
portfolio would incur.  Note, also, that the gap between best and worst tends to
narrow over the long term.

- ----------------------------------------------------------
     INTERNATIONAL STOCK MARKET RETURNS (1969-1999)
- ----------------------------------------------------------
                   1 YEAR    5 YEARS  10 YEARS   20 YEARS
- ----------------------------------------------------------
Best                69.9%     36.5%     22.8%      16.3%
Worst              -23.2       1.5       5.9       12.0
Average             15.2      13.6      14.5       14.7
- ----------------------------------------------------------

     The table  covers all of the 1-, 5-,  10-,  and 20-year  periods  from 1969
through 1999. Keep in mind that this was a particularly favorable period for all
stock markets.  These average returns reflect past  performance on international
stocks;  you should not regard  them as an  indication  of future  returns  from
either foreign markets as a whole or any of the Funds in particular.
     Note that the preceding chart does not take into account  returns  measured
by the MSCI  Emerging  Markets  Free  Index,  a widely  used  barometer  of less
developed stock markets.  Emerging  markets can be  substantially  more volatile
than more developed  foreign markets.  In addition,  because the MSCI EAFE Index
tracks the European and Pacific markets  collectively,  the above returns do not
reflect  the  variability  of  returns  from  year to  year  for  these  markets
individually,  or the variability  across these and other geographic  regions or
market  sectors.  To illustrate  this  variability,  the  following  table shows
returns for  different  international  markets--as  well as the U.S.  market for
comparison--from  1990 to 1999, as measured by their  respective  indexes.  Note
that the returns shown do not include the costs of buying and selling  stocks or
other expenses that a real-world investment portfolio would incur.

<PAGE>

20

- --------------------------------------------------------------------------------
            STOCK MARKET RETURNS FOR DIFFERENT INTERNATIONAL MARKETS*
- --------------------------------------------------------------------------------
             EUROPEAN         PACIFIC         EMERGING           U.S.
              MARKET           MARKET          MARKETS         MARKETS
- --------------------------------------------------------------------------------
1990          -2.00%          -34.43%          -10.55%          -3.10%
1991          14.12            11.51            59.91           30.47
1992          -3.92           -18.51            11.40            7.62
1993          29.25            36.15            74.84           10.08
1994           2.82            12.82            -7.31            1.32
1995          22.08             2.89             0.01**         37.58
1996          21.42            -8.23            15.19           22.96
1997          23.75           -25.74           -16.37           33.36
1998          28.68             2.64           -18.39           28.58
1999          15.77            56.38            60.86           21.04
- --------------------------------------------------------------------------------
*    European  market  returns are  measured by the MSCI Europe  Index;  Pacific
     market  returns are  measured  by the MSCI  Pacific  Free  Index;  emerging
     markets returns are  measured  by the Select  Emerging  Markets Free Index;
     and U.S.  market  returns are measured by the Standard & Poor's 500 Index.
**   The inception date of the Select  Emerging  Markets Free  Index  was May 4,
     1994;  returns  shown for  1990 to 1994 are  measured by the MSCI  Emerging
     Markets Free Index.
- --------------------------------------------------------------------------------

     Keep in mind, however,  that these average returns reflect past performance
of the various indexes;  you should not consider them as an indication of future
returns from the indexes, or from any of the Funds in particular.

[FLAG] EACH FUND IS SUBJECT TO COUNTRY RISK,  WHICH IS THE CHANCE THAT POLITICAL
     EVENTS (A WAR, NATIONAL  ELECTIONS),  FINANCIAL PROBLEMS (RISING INFLATION,
     GOVERNMENT  DEFAULT),  OR NATURAL  DISASTERS (AN EARTHQUAKE,  A FLOOD) WILL
     WEAKEN A COUNTRY'S  ECONOMY AND CAUSE  INVESTMENTS  IN THAT COUNTRY TO LOSE
     MONEY.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                  REGIONAL VERSUS BROAD INTERNATIONAL INVESTING

Regional funds are international funds that invest in a particular  geographical
region,  such as Europe or the Pacific  Basin.  Because they  concentrate  their
holdings in a single  region,  these  funds  typically  have higher  share price
volatility  than  broadly  diversified  international  stock  funds  (which,  by
investing in many different foreign markets,  may offset losses from one country
with gains from another at any given time).
- --------------------------------------------------------------------------------

     EUROPEAN STOCK INDEX FUND. Stocks from the United Kingdom, France, Germany,
and the  Netherlands  comprised  29%, 15%, 14%, and 8% of the MSCI Europe Index,
respectively,  as of March 31, 2000;  stocks from the  remaining 11 countries in
the Index have much less  significant  market  capitalization  weightings in the
Index and thus much less impact on the Fund's  total  return.  The Fund's  heavy
exposure to just four  countries  involves a higher  degree of country risk than
that of more geographically diversified international funds.
     PACIFIC STOCK INDEX FUND. Japanese stocks comprised 82% of the MSCI Pacific
Free  Index as of  March  31,  2000.  Therefore,  Japanese  stocks  represent  a
correspondingly  large  component of the Pacific Stock Index Fund's assets.  The
Fund's large investment in the

<PAGE>

21

Japanese stock market involves a higher degree of country risk than that of more
geographically diversified international funds.
     EMERGING MARKETS STOCK INDEX FUND. As discussed above, emerging markets can
be  substantially  more  volatile  than both  U.S.  and more  developed  foreign
markets.  Therefore,  the Emerging Markets Stock Index Fund may expose investors
to a higher  degree of  volatility  than  funds  that  invest in more  developed
markets.
     DEVELOPED  MARKETS  INDEX FUND. As a fund of funds,  the Developed  Markets
Index Fund  intends to invest  all of its assets in shares of the  European  and
Pacific  Stock Index Funds;  indirectly,  its country risk will  proportionately
mirror that of the European and Pacific Stock Index Funds.
     TOTAL  INTERNATIONAL  STOCK  INDEX  FUND.  As a fund of  funds,  the  Total
International  Stock Index Fund intends to invest all of its assets in shares of
the European,  Pacific, and Emerging Markets Stock Index Funds; indirectly,  its
country risk will  proportionately  mirror that of the underlying  funds.  As of
March 31, 2000, the Fund's assets were invested as follows:  60% in the European
Stock Index Fund;  30% in the Pacific Stock Index Fund;  and 10% in the Emerging
Markets Stock Index Fund.

[FLAG]EACH FUND IS SUBJECT TO CURRENCY RISK, WHICH IS THE CHANCE THAT A STRONGER
     U.S.  DOLLAR  WILL  REDUCE  RETURNS  FOR  AMERICANS   INVESTING   OVERSEAS.
     GENERALLY,  WHEN  THE  DOLLAR  RISES  IN VALUE  AGAINST  ANOTHER  COUNTRY'S
     CURRENCY,  YOUR INVESTMENT IN THAT COUNTRY LOSES VALUE BECAUSE ITS CURRENCY
     IS WORTH  FEWER U.S.  DOLLARS.  ON THE OTHER  HAND,  A WEAKER  U.S.  DOLLAR
     GENERALLY   LEADS  TO  HIGHER   RETURNS  FOR  AMERICANS   HOLDING   FOREIGN
     INVESTMENTS.

SECURITY SELECTION
In seeking to track its target index,  the European  Stock Index,  Pacific Stock
Index,  and  Emerging  Markets  Stock Index Funds each invest in a portfolio  of
foreign stocks  selected in a manner that mirrors the weightings of their target
indexes.  The Total  International  Stock Index Fund simply invests in shares of
the European,  Pacific,  and Emerging Markets Stock Index Funds.  Likewise,  the
Developed  Markets  Index Fund will simply  invest in shares of the European and
Pacific Stock Index Funds.  Each Fund seeks to provide  investment  results that
correspond to its target index.  The  correlation  between the  performance of a
Fund and its target index is expected to be at least 95%. (A correlation of 100%
would indicate perfect correlation.)
     EUROPEAN  STOCK INDEX FUND.  The Fund invests in a  statistically  selected
sample of  approximately  550 common  stocks  included in the MSCI Europe Index,
which is made up of the stocks of  companies  located in 15 European  countries.
Four    countries--the    United    Kingdom,    France,    Germany,    and   the
Netherlands--dominate  the  Index,  with 29%,  15%,  14%,  and 8% of the  market
capitalization  of the Index,  respectively,  as of March 31, 2000. The other 11
countries,  which include Austria,  Belgium,  Denmark,  Finland, Ireland, Italy,
Norway, Portugal,  Spain, Sweden, and Switzerland,  are much less significant to
the Index and, consequently, the Fund.
     PACIFIC  STOCK INDEX FUND.  The Fund  invests in a  statistically  selected
sample of the  approximately 420 common stocks included in the MSCI Pacific Free
Index, which is comprised of the stocks of Pacific Basin companies. The Index is
dominated by the Japanese  stock  market,  which  represented  82% of the market
capitalization  of the Index as of March 31,  2000.  The  other  four  countries
represented in the Index are Australia, Hong Kong, New Zealand, and Singapore.

<PAGE>

22

     EMERGING  MARKETS  STOCK INDEX FUND.  The Fund  invests in a  statistically
selected  sample of the  approximately  500 common stocks included in the Select
Emerging Markets Free Index, which is made up of the stocks of companies located
in 13  emerging  markets of  Europe,  Asia,  Africa,  and Latin  America.  Three
countries--Mexico,  Brazil, and South Africa--represent a majority of the Index,
with 16%, 14%, and 13% of the market capitalization of the Index,  respectively,
as of March  31,  2000.  The other 10  countries  include  Argentina,  the Czech
Republic, Greece, Hungary, Indonesia, Israel, Philippines, Poland, Thailand, and
Turkey.  The developed  countries of Hong Kong and Singapore are included in the
Index to broaden  diversification  and ensure adequate  liquidity.  The Index is
called  "select"  because  it is modeled on a larger  index--the  MSCI  Emerging
Markets Free  Index--but with certain  adjustments  designed to reduce risk. For
instance,  MSCI  considers  the Hong Kong and  Singapore  markets  too mature to
include in its index, but they are part of the Select Index.  Conversely,  as of
March 31, 2000, the Select Index excluded  certain  countries  found in the MSCI
Emerging Markets Free  Index--Chile,  China,  Colombia,  India,  Jordan,  Korea,
Pakistan,  Peru,  Russia, Sri Lanka, and Taiwan--due to concerns about liquidity
or  entry  barriers  in  those  markets.   MSCI  administers  the  Select  Index
exclusively for Vanguard,  and  periodically  adjusts the included  countries to
keep pace with  evolution  in world  markets.  (Such  adjustments  are made on a
forward-looking  basis, so past  performance of the Select Index always reflects
actual country representation during the relevant period.)
     Although index funds, by their nature, tend to be tax-efficient  investment
vehicles, the Funds are generally managed without regard to tax ramifications.

TRANSACTION FEES AND ACCOUNT MAINTENANCE FEES
Some of  Vanguard's  index funds charge a  transaction  fee on purchases of fund
shares to offset the higher costs of trading  certain  securities,  particularly
small-company and international  stocks.  The transaction fee ensures that these
higher  costs are borne by the  investors  making the  transactions--and  not by
shareholders  already in the fund who do not  generate  the costs.  In addition,
most of  Vanguard's  index funds charge an account  maintenance  fee on accounts
under  $10,000  to divide  the costs of  maintaining  accounts  equitably  among
shareholders.
     All  transaction  fees are paid directly to the fund itself (unlike a sales
charge or load that  non-Vanguard  funds may impose to  compensate  their  sales
representatives).  Without transaction fees, some index funds would have trouble
tracking their target indexes.
     Vanguard  assesses an account  maintenance  fee on index fund  shareholders
whose account balances are below $10,000 (for any reason, including a decline in
the value of a fund's shares) on the date a dividend is distributed. This fee is
intended to allocate the costs of  maintaining  accounts  more  equitably  among
shareholders.   For  funds  that  distribute  dividends  annually,  the  account
maintenance  fee is $10 per  year,  deducted  from the  annual  dividend,  which
usually is  distributed  during the last two weeks of the calendar  year. If the
fee is deducted from your dividend distribution,  you will still be taxed on the
full amount of your dividend  (unless you hold your shares  through a nontaxable
account). If you are due a dividend that is less than the fee, fractional shares
will be  automatically  redeemed to make up the  difference.  This fee cannot be
prepaid.

COSTS AND MARKET-TIMING
Some  investors  try to profit from a strategy  called  market-timing--switching
money into  investments  when they expect  prices to rise,  and taking money out
when they expect  prices to fall.  As money is shifted in and out, a fund incurs
expenses for buying and selling

<PAGE>

23

securities.  These  costs  are  borne by all fund  shareholders,  including  the
long-term  investors  who do not  generate  the costs.  Therefore,  the Vanguard
International  Stock Index  Funds have  adopted the  following  policies,  among
others, designed to discourage short-term trading:
- -    Each Fund  reserves  the right to reject  any  purchase  request--including
     exchanges from other  Vanguard  funds--that it regards as disruptive to the
     efficient  management  of the Fund.  A purchase  request  could be rejected
     because  of the  timing  of the  investment  or  because  of a  history  of
     excessive trading by the investor.
- -    The  Emerging  Markets  Stock  Index  Fund  charges  a  transaction  fee on
     purchases and redemptions.
- -    Telephone and online exchanges are not accepted for non-IRA accounts.
- -    There is a limit on the number of times you can exchange  into and out of a
     Fund (see "Redeeming Shares" in the INVESTING WITH VANGUARD section).
- -    Each Fund reserves the right to stop offering shares at any time.

     THE  VANGUARD  FUNDS DO NOT  PERMIT  MARKET-TIMING.  DO NOT INVEST IN THESE
FUNDS IF YOU ARE A MARKET-TIMER.

TURNOVER RATE
Although each Fund seeks to invest for the long term, the Funds retain the right
to sell  securities  regardless  of how  long the  securities  have  been  held.
Generally,  a  passively-  managed  fund  sells  securities  only to  respond to
redemption  requests  or to adjust the number of shares held to reflect a change
in the fund's target index. Because of this, the turnover rate for each Fund has
been extremely low. The Financial  Highlights  tables  beginning on page 29 show
historic turnover rates for each Fund.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                                  TURNOVER RATE

Before  investing in a mutual fund,  you should review its turnover  rate.  This
gives an  indication  of how  transaction  costs could affect the fund's  future
returns.  In general,  the greater the volume of buying and selling by the fund,
the greater the impact that brokerage  commissions and other  transaction  costs
will have on its return. Also, funds with high turnover rates may be more likely
to generate  capital gains that must be  distributed to  shareholders  as income
subject to taxes. The average turnover rate for passively  managed foreign stock
index funds in 1999 was roughly  17%; for all foreign  stock funds,  the average
turnover was approximately 76%, according to Morningstar,  Inc. (A turnover rate
of 100% would occur, for example,  if a fund sold and replaced securities valued
at 100% of its net assets within a one-year period.)

- --------------------------------------------------------------------------------

OTHER INVESTMENT POLICIES AND RISKS
Besides  investing  in common  stocks of foreign  companies,  each Fund may make
certain  other  kinds of  investments  to achieve its  objective.  Each Fund may
change its objective without shareholder approval.
     The Funds may also  invest,  to a limited  extent,  in futures  and options
contracts,  warrants,  convertible  securities,  and swap agreements,  which are
types  of  derivatives.  Losses  (or  gains)  involving  futures  contracts  can
sometimes be substantial--in part because a relatively small price movement in a
futures contract may result in an immediate and substantial loss (or gain) for a
fund.  Similar risks exist for warrants  (securities that permit their

<PAGE>

24

owners to  purchase  a  specific  number  of shares of stock at a  predetermined
price),  convertible  securities  (securities  that may be exchanged for another
asset), and swap agreements  (contracts between two parties in which each agrees
to make  payments  to the  other  based on the  return of a  specified  index or
asset).

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                                   DERIVATIVES

A derivative is a financial contract whose value is based on (or "derived" from)
a  traditional  security  (such  as a stock  or a  bond),  an  asset  (such as a
commodity like gold), or a market index (such as the S&P 500 Index). Futures and
options are derivatives  that have been trading on regulated  exchanges for more
than two decades.  These  "traditional"  derivatives are standardized  contracts
that can easily be bought and sold,  and whose market values are  determined and
published  daily. It is these  characteristics  that  differentiate  futures and
options from the relatively new types of derivatives. If used for speculation or
as leveraged investments, derivatives can carry considerable risks.
- --------------------------------------------------------------------------------

     For this  reason,  the  Funds  will  not use  futures,  options,  warrants,
convertible  securities,  or swap  agreements  for  speculative  purposes  or as
leveraged  investments  that  magnify  the gains or losses of an  investment.  A
Fund's  obligation  under  futures  contracts  will not  exceed 20% of its total
assets.
     The reasons for which a Fund will invest in futures and options are:
- -    To keep cash on hand to meet  shareholder  redemptions or other needs while
     simulating full investment in stocks.
- -    To reduce the Fund's  transaction costs or add value when these instruments
     are favorably priced.
     Each Fund may also enter into forward foreign  currency  contracts in order
to maintain  the same  currency  exposure  as its  respective  Index.  A forward
foreign currency contract is an agreement to buy or sell a country's currency at
a specific price on a specific  date,  usually 30, 60, or 90 days in the future.
In other  words,  the  contract  guarantees  an  exchange  rate on a given date.
Managers of  international  stock funds  typically use these  contracts to guard
against sudden,  unfavorable  changes in U.S.  dollar/foreign  currency exchange
rates. However, the Funds will use these contracts for different reasons:
- -    To gain currency exposure when investing in futures.
- -    To settle trades in a foreign currency.

THE FUNDS AND VANGUARD
Vanguard  International  Stock Index Funds are offered by The Vanguard  Group, a
family of more than 35  investment  companies  with more than 100 funds  holding
assets  worth more than $550  billion.  All of the  Vanguard  funds share in the
expenses associated with business operations,  such as personnel,  office space,
equipment, and advertising.
     Vanguard  also  provides   marketing   services  to  the  funds.   Although
shareholders do not pay sales commissions or 12b-1  distribution fees, each fund
pays its allocated share of The Vanguard Group's marketing costs.
     Total International Stock and Developed Markets Index Funds will indirectly
bear a proportionate share of the expenses of the underlying funds in which they
invest.  However, their direct expenses are expected to be very low or zero. For
example, Total International

<PAGE>

25

Stock Index Fund has incurred no direct  expenses  since its  inception in 1996.
Total  International Stock and Developed Markets Index Funds may operate without
incurring  direct  expenses  because  Vanguard will reimburse them for (i) their
contributions  to the cost of  operating  the  underlying  funds  in which  they
invest,  and (ii) savings in  administrative  and marketing  costs that Vanguard
expects to derive from their operations.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                     VANGUARD'S UNIQUE CORPORATE STRUCTURE

The Vanguard Group is truly a MUTUAL mutual fund company. It is owned jointly by
the funds it oversees and thus  indirectly by the  shareholders  in those funds.
Most other mutual funds are operated by for-profit management companies that may
be owned by one person,  by a group of individuals,  or by investors who own the
management  company's stock. By contrast,  Vanguard  provides its services on an
"at-cost"  basis,  and the funds' expense  ratios  reflect only these costs.  No
separate  management  company reaps profits or absorbs losses from operating the
funds.
- --------------------------------------------------------------------------------

INVESTMENT ADVISER
The Vanguard Group (Vanguard), P.O. Box 2600, Valley Forge, PA 19482, founded in
1975,  serves as the Funds' adviser through its Quantitative  Equity Group. (The
Developed  Markets and Total  International  Stock Index Funds receive  advisory
services indirectly, by investing in other funds.) Vanguard manages the Funds on
an at-cost  basis,  subject to the control of the  Trustees  and officers of the
Funds.  For  the  fiscal  year  ended  December  31,  1999,  the  advisory  fees
represented  an effective  annual rate of less than 0.01% each for the European,
Pacific, and Emerging Markets Stock Index Funds.
     The Funds have  authorized  Vanguard to choose brokers or dealers to handle
the purchase and sale of securities for the Funds, and to get the best available
price and most favorable execution from these brokers or dealers with respect to
all  transactions.  The Funds may direct Vanguard to use a particular broker for
certain  transactions  in exchange for commission  rebates or research  services
provided to the Funds.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                               THE FUNDS' ADVISER

The Vanguard Group provides investment advisory services to many Vanguard funds;
as of December  31,  1999,  the Group  managed  more than $371  billion in total
assets.  The individual  responsible for overseeing the European,  Pacific,  and
Emerging Markets Stock Index Funds' investments is:

GEORGE  U.  SAUTER,  Managing  Director  of  Vanguard,  and  head of  Vanguard's
Quantitative  Equity  Group;  has worked in  investment  management  since 1985;
primary  responsibility  for Vanguard's stock indexing policy and strategy since
joining the company in 1987;  A.B.,  Dartmouth  College;  M.B.A.,  University of
Chicago.
- --------------------------------------------------------------------------------

<PAGE>

26

DIVIDENDS, CAPITAL GAINS, AND TAXES

FUND DISTRIBUTIONS
Each Fund distributes to shareholders  virtually all of its net income (interest
and dividends,  less  expenses),  as well as any capital gains realized from the
sale of its holdings.  Distributions generally occur in December. In addition, a
Fund may occasionally be required to make supplemental dividend or capital gains
distributions at some other time during the year. You can receive  distributions
of income dividends or capital gains in cash, or you can have them automatically
reinvested in more shares of the Fund.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                                 DISTRIBUTIONS

As a  shareholder,  you are  entitled  to your share of the fund's  income  from
interest and dividends, and gains from the sale of investments. You receive such
earnings as either an income  dividend or a capital gains  distribution.  Income
dividends come from both the dividends that the fund earns from its holdings and
the  interest it receives  from its money market and bond  investments.  Capital
gains are realized  whenever the fund sells securities for higher prices than it
paid for them. These capital gains are either short-term or long-term, depending
on whether the fund held the  securities  for one year or less, or more than one
year.
- --------------------------------------------------------------------------------

BASIC TAX POINTS
Vanguard will send you a statement  each year showing the tax status of all your
distributions.  In addition,  taxable investors should be aware of the following
basic tax points:
- -    Distributions  are taxable to you whether or not you reinvest these amounts
     in additional Fund shares.
- -    Distributions   declared  in  December--if  paid  to  you  by  the  end  of
     January--are  taxable  for  federal  income tax  purposes as if received in
     December.
- -    Any dividends and short-term  capital gains that you receive are taxable to
     you as ordinary income for federal income tax purposes.
- -    Any  distributions  of net  long-term  capital  gains are taxable to you as
     long-term capital gains for federal income tax purposes, no matter how long
     you've owned shares in the Fund.
- -    Capital gains  distributions  may vary  considerably from year to year as a
     result of the Funds' normal investment activities and cash flows.
- -    A sale or exchange of Fund shares is a taxable  event.  This means that you
     may have a capital gain to report as income, or a capital loss to report as
     a deduction, when you complete your federal income tax return.
- -    Dividend and capital gains  distributions that you receive, as well as your
     gains or losses from any sale or exchange of Fund shares, may be subject to
     state and local income taxes.
- -    The  European,  Pacific,  and  Emerging  Markets  Stock  Index Funds may be
     subject to foreign taxes or foreign tax withholding on dividends, interest,
     and some  capital  gains that they receive on foreign  securities.  You may
     qualify for an offsetting  credit or deduction under U.S. tax laws for your
     portion of a Fund's foreign tax obligations, provided that you meet certain
     requirements.  Because the Total  International Stock and Developed Markets
     Index Funds invest in foreign stocks indirectly  through other funds, their
     investors  are  not  able to take  advantage  of  foreign  tax  credits  or
     deductions. See your tax adviser or IRS publications for more information.

<PAGE>

27

GENERAL INFORMATION
BACKUP  WITHHOLDING.   By  law,  Vanguard  must  withhold  31%  of  any  taxable
distributions  or redemptions from your account if you do not:
- -    provide us with your correct taxpayer identification number;
- -    certify that the taxpayer identification number is correct; and
- -    confirm that you are not subject to backup withholding.
Similarly,  Vanguard  must withhold from your account if the IRS instructs us to
do so.
FOREIGN  INVESTORS.  The Vanguard funds  generally do not offer their shares for
sale outside of the United States.  Foreign  investors should be aware that U.S.
withholding and estate taxes may apply to any investments in Vanguard funds.
INVALID  ADDRESSES.  If a dividend or capital gains distribution check mailed to
your address of record is returned as undeliverable, Vanguard will automatically
reinvest  all future  distributions  until you  provide us with a valid  mailing
address.
TAX CONSEQUENCES.  This prospectus provides general tax information only. If you
are investing through a tax-deferred retirement account, such as an IRA, special
tax rules apply. Please consult your tax adviser for detailed  information about
a fund's tax consequences for you.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                              "BUYING A DIVIDEND"

Unless you are investing through a tax-deferred  retirement  account (such as an
IRA),  you  should  avoid  buying  shares  of a fund  shortly  before it makes a
distribution,  because  doing so can cost you money in  taxes.  This is known as
"buying a dividend." For example: On December 15, you invest $5,000,  buying 250
shares for $20 each. If the fund pays a distribution of $1 per share on December
16, its share price would drop to $19 (not counting  market  change).  You still
have only $5,000 (250 shares x $19 = $4,750 in share value, plus 250 shares x $1
=  $250  in  distributions),  but  you  owe  tax on the  $250  distribution  you
received--even  if you reinvest it in more shares. To avoid "buying a dividend,"
check a fund's distribution schedule before you invest.
- --------------------------------------------------------------------------------

SHARE PRICE

Each Fund's share price,  called its net asset value, or NAV, is calculated each
business day after the close of regular  trading on the New York Stock  Exchange
(the NAV is not  calculated  on  holidays  or other  days when the  Exchange  is
closed).  Net  asset  value  per  share  for the  Developed  Markets  and  Total
International  Stock Index Funds is computed by adding up the total value of the
Fund's  investments  (i.e.,  shares of the  underlying  funds) and other assets,
subtracting any of its liabilities  (debts),  and then dividing by the number of
Fund shares outstanding:

                     TOTAL ASSETS - LIABILITIES
NET ASSET VALUE = --------------------------------
                    NUMBER OF SHARES OUTSTANDING

     Net asset value per share for the European,  Pacific,  and Emerging Markets
Stock  Index Funds is  computed  in a similar  way,  by dividing  the net assets
attributed  to each  class by the  number of Fund  shares  outstanding  for that
class.

<PAGE>

28

     Knowing the daily net asset value is useful to you as a shareholder because
it indicates the current value of your investment. The Fund's NAV, multiplied by
the  number of  shares  you own,  gives you the  dollar  amount  you would  have
received  had you sold all of your  shares  back to the Fund that  day.  Because
foreign  securities  markets may operate on days which are not business  days in
the  United  States,  the  value of a Fund's  holdings  may  change on days when
shareholders will not be able to purchase or redeem the Fund's shares.
     A NOTE ON  PRICING:  A Fund's  investments  will be priced at their  market
value when market  quotations are readily  available.  When these quotations are
not  readily  available,  investments  will  be  priced  at  their  fair  value,
calculated  according to procedures  adopted by the Funds' Board of Trustees.  A
Fund also may use fair value pricing if the value of a security held by the Fund
is  materially  affected  by events  occurring  after  the close of the  primary
markets or  exchanges  on which such  security is traded.  In these  situations,
prices used by the Fund to calculate  its net asset value may differ from quoted
or published prices for the underlying securities.
     Each Fund's  share price can be found daily in the mutual fund  listings of
most major  newspapers  under the  heading  "Vanguard  Index  Funds."  Different
newspapers  use different  abbreviations  for each Fund, but the most common are
EUROPE,  PACIFIC,  EMERMKT,  DEVMKT,  and  TOTINTL  for the  European,  Pacific,
Emerging Markets,  Developed Markets, and Total International Stock Index Funds,
respectively.

FINANCIAL HIGHLIGHTS
The following  financial  highlights  tables are intended to help you understand
each Fund's  financial  performance  for the past five years or since  inception
(except for the  Developed  Markets Index Fund,  which did not start  operations
until May 5, 2000), and certain  information  reflects  financial  results for a
single Fund share.  The total  returns in each table  represent the rate that an
investor  would  have  earned  or lost each  year on an  investment  in the Fund
(assuming  reinvestment of all dividend and capital gains  distributions).  This
information  has  been  derived  from  the  financial   statements   audited  by
PricewaterhouseCoopers  LLP, independent  accountants,  whose report--along with
each Fund's financial  statements--is  included in the Funds' most recent annual
report to  shareholders.  You may have the  annual  report  sent to you  without
charge by contacting Vanguard.

<PAGE>

29

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                   HOW TO READ THE FINANCIAL HIGHLIGHTS TABLE

This  explanation  uses the  European  Stock Index Fund as an example.  The Fund
began fiscal 1999 with a net asset value (price) of $25.28 per share. During the
year,  the Fund earned  $0.50 per share from  investment  income  (interest  and
dividends) and $3.69 per share from investments that had appreciated in value or
that were sold for higher prices than the Fund paid for them.

Shareholders  received $0.65 per share in the form of dividend and capital gains
distributions.  A portion of each year's  distributions  may come from the prior
year's income or capital gains.

The  earnings  ($4.19  per  share)  minus the  distributions  ($0.65  per share)
resulted in a share price of $28.82 at the end of the year. This was an increase
of $3.54 per share (from  $25.28 at the  beginning  of the year to $28.82 at the
end of the year).  For a shareholder  who  reinvested the  distributions  in the
purchase of more shares, the total return from the Fund was 16.62% for the year.

As of December 31, 1999, the Fund had $6.1 billion in net assets.  For the year,
its  expense  ratio was 0.29%  ($2.90  per  $1,000 of net  assets);  and its net
investment  income  amounted to 1.99% of its  average  net  assets.  It sold and
replaced securities valued at 7% of its net assets.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                                      VANGUARD EUROPEAN STOCK INDEX FUND
                                            YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $25.28      $20.13      $16.57      $14.02      $11.76
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .50         .41         .38         .34         .32
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    3.69        5.40        3.63        2.63        2.30
                        --------------------------------------------------------
   Total from Investment
    Operations             4.19        5.81        4.01        2.97        2.62
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.50)       (.52)       (.37)       (.36)       (.32)
 Distributions from
  Realized Capital Gains   (.15)       (.14)       (.08)       (.06)       (.04)
                        --------------------------------------------------------
   Total Distributions     (.65)       (.66)       (.45)       (.42)       (.36)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $28.82      $25.28      $20.13      $16.57      $14.02
================================================================================

TOTAL RETURN*             16.62%      28.86%      24.23%      21.26%      22.28%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $6,106      $4,479      $2,432      $1,595      $1,017
 Ratio of Total
  Expenses to Average
  Net Assets              0.29%       0.29%       0.31%       0.35%       0.35%
 Ratio of Net
  Investment Income to
  Average Net Assets      1.99%       1.97%       2.19%       2.45%       2.66%
 Turnover Rate               7%          7%          3%          4%          2%
================================================================================
*Total return figures do not reflect the transaction fee on purchases imposed
 prior to 4/1/2000 or the annual account maintenance fee.

<PAGE>

30

FINANCIAL HIGHLIGHTS (CONTINUED)

- --------------------------------------------------------------------------------
                                      VANGUARD PACIFIC STOCK INDEX FUND
                                           YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $ 7.84       $7.72      $10.51      $11.50      $11.31
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .08        .085         .09         .10         .10
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    4.39        .100       (2.79)      (1.00)        .21
                        --------------------------------------------------------
   Total from Investment
    Operations             4.47        .185       (2.70)       (.90)        .31
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.09)      (.065)       (.09)       (.09)       (.12)
 Distributions from
  Realized Capital Gains     --          --          --          --          --
                        --------------------------------------------------------
   Total Distributions     (.09)      (.065)       (.09)       (.09)       (.12)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $12.22       $7.84      $ 7.72      $10.51      $11.50
================================================================================

TOTAL RETURN*            57.05%       2.41%     -25.67%      -7.82%       2.75%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $2,526      $1,033        $827        $978        $831
 Ratio of Total
  Expenses to Average
  Net Assets              0.37%       0.40%       0.35%       0.35%       0.35%
 Ratio of Net
  Investment Income to
  Average Net Assets      0.95%       1.17%       1.03%       0.89%       0.97%
 Turnover Rate               6%          4%          8%          9%          1%
================================================================================
*Total return figures do not reflect the transaction fee on purchases imposed
 prior to 4/1/2000 or the annual account maintenance fee.

- --------------------------------------------------------------------------------
                                  VANGUARD EMERGING MARKETS STOCK INDEX FUND
                                           YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $ 7.91       $9.98      $12.28      $10.75      $10.87
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .24         .27         .24         .18         .15
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    4.62       (2.08)      (2.31)       1.52        (.09)
                        --------------------------------------------------------
   Total from Investment
    Operations             4.86       (1.81)      (2.07)       1.70         .06
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.27)       (.26)       (.23)       (.17)       (.18)
 Distributions from
  Realized Capital Gains     --          --          --          --          --
                        --------------------------------------------------------
   Total Distributions     (.27)       (.26)       (.23)       (.17)       (.18)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $21.50       $7.91      $ 9.98      $12.28      $10.75
================================================================================

TOTAL RETURN*            61.57%     -18.12%     -16.82%      15.83%       0.56%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $1,138        $577        $660        $637        $234
 Ratio of Total
  Expenses to Average
  Net Assets              0.58%       0.61%       0.57%       0.60%       0.60%
 Ratio of Net
  Investment Income to
  Average Net Assets      2.55%       2.99%       1.96%       1.69%       2.00%
 Turnover Rate              22%         22%         19%          1%          3%
================================================================================
*Total return figures do not reflect the transaction fee on purchases (0.5%
 beginning 4/1/2000, 1.0% from 11/3/1997 to 3/31/2000, 1.5% from 1/1/1997 to
 11/2/1997, 2.0% in 1995 through 1996), the transaction fee on redemptions
 (0.5% beginning 4/1/2000, 1.0% through 3/31/2000), or the annual account
 maintenance fee.

<PAGE>

31

- --------------------------------------------------------------------------------
                                          VANGUARD TOTAL INTERNATIONAL
                                                STOCK INDEX FUND
                                             YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                                       1999         1998         1997     1996*
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF PERIOD                 $11.19       $ 9.87       $10.14    $10.26
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income                  .21          .21          .18      .150
 Capital Gain Distributions
  Received                              .04          .02          .02      .015
 Net Realized and
  Unrealized Gain
  (Loss) on Investments                3.09         1.31         (.28)    (.110)
                        --------------------------------------------------------
   Total from Investment
    Operations                         3.34         1.54         (.08)     .055
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income                    (.21)        (.21)        (.17)    (.160)
 Distributions from
  Realized Capital Gains               (.01)        (.01)        (.02)    (.015)
                        --------------------------------------------------------
   Total Distributions                 (.22)        (.22)        (.19)    (.175)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD       $14.31       $11.19       $ 9.87    $10.14
================================================================================

TOTAL RETURN**                       29.92%       15.60%       -0.77%     0.55%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Period (Millions)                  $2,570       $1,375         $903      $280
 Ratio of Total
  Expenses to Average
  Net Assets                             0%           0%           0%        0%
 Ratio of Net
  Investment Income to
  Average Net Assets                  2.04%        2.18%        2.19%    1.51%+
 Turnover Rate                           1%           2%           0%        0%
================================================================================
 *April 29 (inception) through December 31, 1996.
**Total return figures do not reflect the transaction fee on purchases imposed
  prior to April 1, 2000 or the annual account maintenance fee.
 +Annualized.

The Funds are not  sponsored,  sold,  promoted,  or endorsed  by Morgan  Stanley
Capital International.  Standard & Poor's(R)," "S&P(R)," "S&P 500(R)," "Standard
& Poor's 500," and "500," are trademarks of The McGraw-Hill Companies, Inc., and
have been licensed for use by The Vanguard Group.

<PAGE>

32

- --------------------------------------------------------------------------------
INVESTING WITH VANGUARD

Are you looking for the most  convenient  way to open or add money to a Vanguard
account?  Obtain instant access to fund information?  Establish an account for a
minor child or for your retirement savings?
     Vanguard  can help.  Our goal is to make it easy and pleasant for you to do
business with us.
     The following  sections of the prospectus briefly explain the many services
we offer.  Booklets providing detailed information are available on the services
marked with a [BOOK ICON]. Please call us to request copies.
- --------------------------------------------------------------------------------

SERVICES AND ACCOUNT FEATURES

Vanguard  offers many services that make it convenient to buy, sell, or exchange
shares, or to obtain fund or account information.
- --------------------------------------------------------------------------------
TELEPHONE REDEMPTIONS (SALES AND EXCHANGES)
Automatically  set up for these Funds unless  you  notify  us  otherwise.  Note:
Limitations do apply; see page 37.
- --------------------------------------------------------------------------------
VANGUARD(R) DIRECT DEPOSIT SERVICE [BOOK ICON]
Automatic  method  for  depositing  your  paycheck  or U.S.  government  payment
(including Social Security and government pension checks) into your account.
- --------------------------------------------------------------------------------
VANGUARD(R) AUTOMATIC EXCHANGE SERVICE [BOOK ICON]
Automatic  method for  moving a fixed  amount of money  from one  Vanguard  fund
account to another.
- --------------------------------------------------------------------------------
VANGUARD FUND EXPRESS(R) [BOOK ICON]
Electronic  method for buying or selling shares.  You can transfer money between
your  Vanguard  fund account and an account at your bank,  savings and loan,  or
credit union on a systematic schedule.
- --------------------------------------------------------------------------------
VANGUARD DIVIDEND EXPRESS(R) [BOOK ICON]
Electronic method for transferring  dividend and/or capital gains  distributions
directly  from your  Vanguard  fund account to your bank,  savings and loan,  or
credit union account.
- --------------------------------------------------------------------------------
VANGUARD TELE-ACCOUNT(R) 1-800-662-6273 (ON-BOARD) [BOOK ICON]
Toll-free  24-hour access to Vanguard fund and account  information--as  well as
some  transactions--by  using any touch-tone phone.  Tele-Account provides total
return,  share price, price change, and yield quotations for all Vanguard funds;
gives your account balances and history (e.g., last transaction, latest dividend
distribution);  and  allows  you to sell or  exchange  shares  to and from  most
Vanguard funds.
- --------------------------------------------------------------------------------
ACCESS VANGUARD(TM) www.vanguard.com [BOOK ICON]
You can use your  personal  computer to perform  certain  transactions  for most
Vanguard  funds by accessing our website.  To establish  this service,  you must
register  through our website.  We will then mail you an account access password
that  allows  you  to  process  the  following   financial  and   administrative
transactions online:
- -    Open a new account.*
- -    Buy, sell, or exchange shares of most funds.
- -    Change your name/address.

<PAGE>

33

- -    Add/change fund options (including dividend options, Vanguard Fund Express,
     bank instructions,  checkwriting, and Vanguard Automatic Exchange Service).
     (Some  restrictions may apply.) Please call our Client Services  Department
     for assistance.

*Only current Vanguard shareholders can open a new account online, by exchanging
 shares from other existing Vanguard accounts.
- --------------------------------------------------------------------------------
INVESTOR INFORMATION DEPARTMENT: 1-800-662-7447 (SHIP) TEXT TELEPHONE:
1-800-952-3335
Call  Vanguard for  information  on our funds,  fund  services,  and  retirement
accounts, and to request literature.
- --------------------------------------------------------------------------------
CLIENT SERVICES DEPARTMENT: 1-800-662-2739 (CREW) TEXT TELEPHONE: 1-800-749-7273
Call Vanguard for information on your account, account transactions, and account
statements.
- --------------------------------------------------------------------------------
SERVICES FOR CLIENTS OF VANGUARD'S INSTITUTIONAL DIVISION: 1-888-809-8102
Vanguard's  Institutional  Division offers a variety of specialized services for
large  institutional   investors,   including  the  ability  to  effect  account
transactions through private electronic networks and third-party recordkeepers.
- --------------------------------------------------------------------------------


TYPES OF ACCOUNTS

Individuals and institutions can establish a variety of accounts with Vanguard.
- --------------------------------------------------------------------------------
FOR ONE OR MORE PEOPLE
Open an account in the name of one (individual) or more (joint tenants) people.
- --------------------------------------------------------------------------------
FOR HOLDING PERSONAL TRUST ASSETS [BOOK ICON]
Invest assets held in an existing personal trust.
- --------------------------------------------------------------------------------
FOR INDIVIDUAL RETIREMENT ACCOUNTS [BOOK ICON]
Open a  traditional  IRA account or a Roth IRA  account.  Eligibility  and other
requirements  are  established  by federal law and  Vanguard  custodial  account
agreements. For more information, please call 1-800-662-7447 (SHIP).
- --------------------------------------------------------------------------------
FOR AN ORGANIZATION [BOOK ICON]
Open an account as a corporation,  partnership,  endowment, foundation, or other
entity.
- --------------------------------------------------------------------------------
FOR THIRD-PARTY TRUSTEE RETIREMENT INVESTMENTS
Open an account as a retirement trust or plan based on an existing  corporate or
institutional  plan.  These  accounts  are  established  by the  trustee  of the
existing plan.
- --------------------------------------------------------------------------------
VANGUARD PROTOTYPE PLANS
Open a  variety  of  retirement  accounts  using  Vanguard  prototype  plans for
individuals,  sole proprietorships,  and small businesses. For more information,
please call 1-800-662-2003.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
A NOTE ON INVESTING WITH VANGUARD THROUGH OTHER FIRMS
You may purchase or sell Fund shares through a financial  intermediary such as a
bank,  broker,  or investment  adviser.  If you invest with Vanguard  through an
intermediary,  please read that firm's program  materials  carefully to learn of
any  special  rules  that may apply.  For  example,  special  terms may apply to
additional service features, fees, or other policies.  Consult your intermediary
to determine when your order will be priced.
- --------------------------------------------------------------------------------

<PAGE>

34

BUYING SHARES

You buy your shares at a Fund's  next-determined  net asset value after Vanguard
receives your request.  As long as your request is received  before the close of
regular trading on the New York Stock Exchange,  generally 4 p.m.  Eastern time,
you will buy your shares at that day's net asset value.
- --------------------------------------------------------------------------------
MINIMUM INVESTMENT TO . . .
open a new account
$3,000 (regular account); $1,000 (traditional IRAs and Roth IRAs).

add to an existing account
$100 by mail or exchange; $1,000 by wire.
- --------------------------------------------------------------------------------
A NOTE ON LOW BALANCES
Each Fund  reserves  the right to close any  nonretirement  fund  account  whose
balance falls below the minimum initial  investment.  The Fund will deduct a $10
annual fee in June if your  nonretirement  account balance at that time is below
$2,500.  The low balance fee is waived for investors who have aggregate Vanguard
account assets of $50,000 or more.
- --------------------------------------------------------------------------------
A NOTE ON PURCHASE FEES
Emerging  Markets  Stock  Index  Fund  deducts  a 0.5% fee  from  all  purchases
(including  exchanges  from  other  Vanguard  funds),  but not  from  reinvested
dividends or capital gains.
- --------------------------------------------------------------------------------
BY MAIL TO . . . [ENVELOPE ICON]
open a new account
Complete and sign the account registration form and enclose your check.

add to an existing account
Mail your check with an  Invest-By-Mail  form  detached  from your  confirmation
statement to the address listed on the form. Please do not alter  Invest-By-Mail
forms, since they are fund- and account-specific.

Make your check payable to: The Vanguard Group-(insert  appropriate Fund number;
see below)
European Stock Index Fund-79
Pacific Stock Index Fund-72
Emerging Markets Stock Index Fund-533
Developed Markets Index Fund-227
Total International Stock Index Fund-113

All  purchases  must be made in U.S.  dollars,  and checks must be drawn on U.S.
banks.

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 1110                455 Devon Park Drive
Valley Forge, PA 19482-1110  Wayne, PA 19087-1815

For clients of Vanguard's Institutional Division . . .

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 2900                455 Devon Park Drive
Valley Forge, PA 19482-2900  Wayne, PA 19087-1815

<PAGE>

35

- --------------------------------------------------------------------------------
IMPORTANT  NOTE:  To prevent  check fraud,  Vanguard will not accept checks made
payable to third parties.
- --------------------------------------------------------------------------------
BY TELEPHONE TO . . . [TELEPHONE ICON]
open a new account
Call Vanguard  Tele-Account*  24 hours a day--or Client Services during business
hours--to exchange from another Vanguard fund account with the same registration
(name, address,  taxpayer  identification  number, and account type). (Note that
some restrictions apply to index fund accounts.)

add to an existing account
Call Vanguard  Tele-Account*  24 hours a day--or Client Services during business
hours--to exchange from another Vanguard fund account with the same registration
(name, address,  taxpayer  identification  number, and account type). (Note that
some restrictions  apply to index fund accounts.) Use Vanguard Fund Express (see
"Services and Account Features") to transfer assets from your bank account. Call
Client Services before your first use to verify that this option is available.

Vanguard Tele-Account   Client Services
1-800-662-6273          1-800-662-2739

*You must obtain a Personal  Identification Number (PIN) through Tele-Account at
 least seven days before you request your first exchange.
- --------------------------------------------------------------------------------
IMPORTANT  NOTE:  Once  you  have  initiated  a  telephone   transaction  and  a
confirmation  number has been assigned,  the transaction  cannot be revoked.  We
reserve the right to refuse any purchase request.
- --------------------------------------------------------------------------------
BY WIRE TO OPEN A NEW ACCOUNT OR ADD TO AN EXISTING ACCOUNT [WIRE ICON]
Call Client  Services to arrange your wire  transaction.  Wire  transactions  to
retirement  accounts are only  available for asset  transfers and rollovers from
other financial institutions. Individual IRA contributions will not be accepted
by wire.

Wire to:
FRB ABA 021001088
HSBC Bank USA

For credit to:
Account: 000112046
Vanguard Incoming Wire Account

In favor of:
European Stock Index Fund-79
Pacific Stock Index Fund-72
Emerging Markets Stock Index Fund-533
Developed Markets Index Fund-227
Total International Stock Index Fund-113
[Account number, or temporary number for a new account]
[Registered account owner(s)]
[Registered address]
- --------------------------------------------------------------------------------

<PAGE>

36

- --------------------------------------------------------------------------------
You can redeem (that is, sell or exchange) shares purchased by check or Vanguard
Fund  Express  at any time.  However,  while  your  redemption  request  will be
processed  at the  next-determined  net asset value after it is  received,  your
redemption  proceeds  will not be available  until  payment for your purchase is
collected, which may take up to ten calendar days.
- --------------------------------------------------------------------------------
A NOTE ON LARGE PURCHASES
It is important that you call Vanguard  before you invest a large dollar amount.
It is our responsibility to consider the interests of all Fund shareholders, and
so we  reserve  the  right to  refuse  any  purchase  that may  disrupt a Fund's
operation or performance.
- --------------------------------------------------------------------------------

REDEEMING SHARES
This section  describes how you can redeem--that is, sell or exchange--a  Fund's
shares.

When Selling Shares:
- -    Vanguard sends the redemption proceeds to you or a designated third party.*
- -    You can sell all or part of your Fund shares at any time.

*May require a signature guarantee; see footnote on page 39.

When Exchanging Shares:
- -    The redemption proceeds are used to purchase shares of a different Vanguard
     fund.
- -    You must meet the receiving fund's minimum investment requirements.
- -    Vanguard reserves the right to revise or terminate the exchange  privilege,
     limit the amount of an exchange, or reject an exchange at any time, without
     notice.
- -    In  order  to  exchange  into  an  account  with a  different  registration
     (including a different name, address, or taxpayer  identification  number),
     you must include the guaranteed  signature of all current account owners on
     your written instructions.

     In both cases, your transaction will be based on the Fund's next-determined
share price,  subject to any special rules described in this "Redeeming  Shares"
section of the prospectus.
- --------------------------------------------------------------------------------
A NOTE ON REDEMPTION FEES
Emerging  Markets  Stock  Index Fund  imposes a 0.5% redemption fee on all share
redemptions. Currently, redemption fees do not apply to Fund shares held through
Vanguard's separate recordkeeping system for employee benefit plan accounts, due
to certain economies associated with these accounts.  However, the Fund reserves
the right to impose  redemption  fees on its shares at any time if  warranted by
the Fund's future costs of processing redemptions from these accounts.
- --------------------------------------------------------------------------------
NOTE:  Once a redemption  is initiated  and a  confirmation  number  given,  the
transaction CANNOT be canceled.
- --------------------------------------------------------------------------------

<PAGE>

37

HOW TO REQUEST A REDEMPTION
You can request a  redemption  from your Fund  account in any one of three ways:
online, by telephone, or by mail.
     The Vanguard funds whose shares you cannot  exchange online or by telephone
are: VANGUARD U.S. STOCK INDEX FUNDS,  VANGUARD  BALANCED  INDEX FUND,  VANGUARD
INTERNATIONAL  STOCK INDEX FUNDS,  VANGUARD REIT INDEX FUND, and VANGUARD GROWTH
AND INCOME FUND. These funds do, however,  permit online and telephone exchanges
within  IRAs and some other  retirement  accounts.  If you sell  shares of these
funds online, you will receive a redemption check at your address of record.
- --------------------------------------------------------------------------------
ONLINE REQUESTS [COMPUTER ICON]
ACCESS VANGUARD at www.vanguard.com
You can use your personal  computer to sell or exchange  shares of most Vanguard
funds by accessing our website.  To establish  this  service,  you must register
through our website.  We will then mail you an account access password that will
enable  you to sell  or  exchange  shares  online  (as  well  as  perform  other
transactions).
- --------------------------------------------------------------------------------

TELEPHONE REQUESTS [TELEPHONE ICON]
All Account Types Except Retirement:
Call Vanguard  Tele-Account  24 hours a day--or Client  Services during business
hours--to sell shares.

Retirement Accounts:
You can  exchange--but  not  sell--shares  by  calling  Tele-Account  or  Client
Services.

Vanguard Tele-Account   Client Services
1-800-662-6273          1-800-662-2739
- --------------------------------------------------------------------------------
SPECIAL  INFORMATION:  We will automatically  establish the telephone redemption
option for your  account,  unless you instruct us  otherwise  in writing.  While
telephone  redemption is easy and convenient,  this account  feature  involves a
risk of loss from  unauthorized or fraudulent  transactions.  Vanguard will take
reasonable  precautions  to protect your  account from fraud.  You should do the
same by keeping your account information  private and immediately  reviewing any
account  statements  that  we  send  to  you.  Make  sure  to  contact  Vanguard
immediately about any transaction you believe to be unauthorized.
- --------------------------------------------------------------------------------
We reserve the right to refuse a telephone redemption if the caller is unable to
provide:
- -    The ten-digit account number.
- -    The name and address exactly as registered on the account.
- -    The primary Social Security or employer identification number as registered
     on the account.
- -    The Personal  Identification  Number (PIN),  if applicable  (for  instance,
     Tele-Account).

     Please note that Vanguard will not be  responsible  for any account  losses
due to telephone  fraud, so long as we have taken reasonable steps to verify the
caller's identity.  If you wish to remove the telephone  redemption feature from
your account, please notify us in writing.
- --------------------------------------------------------------------------------
A NOTE ON UNUSUAL CIRCUMSTANCES
Vanguard  reserves the right to revise or  terminate  the  telephone  redemption
privilege at any time,  without notice.  In addition,  Vanguard can stop selling
shares or postpone  payment at times when the New York Stock  Exchange is closed
or under any emergency  circumstances  as determined by the U.S.  Securities and
Exchange Commission. If you

<PAGE>

38

experience  difficulty  making a telephone  redemption during periods of drastic
economic or market  change,  you can send us your  request by regular or express
mail.  Follow the  instructions on selling or exchanging  shares by mail in this
section.
- --------------------------------------------------------------------------------
MAIL REQUESTS [ENVELOPE ICON]
All Account Types Except Retirement:
Send a letter of instruction signed by all registered  account holders.  Include
the fund name and  account  number and (if you are  selling) a dollar  amount or
number  of shares  OR (if you are  exchanging)  the name of the fund you want to
exchange  into and a dollar  amount or number of  shares.  To  exchange  into an
account  with a different  registration  (including a different  name,  address,
taxpayer identification number, or account type), you must provide Vanguard with
written  instructions  that  include the  guaranteed  signatures  of all current
owners of the fund from which you wish to redeem.

Vanguard Retirement Accounts:
For information on how to request distributions from:
- -    Traditional IRAs and Roth IRAs--call Client Services.
- -    SEP-IRAs, SIMPLE IRAs, 403(b)(7) custodial accounts, and Profit-Sharing and
     Money Purchase Pension (Keogh) Plans--call  Individual  Retirement Plans at
     1-800-662-2003.

Depending on your account  registration  type,  additional  documentation may be
required.

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 1110                455 Devon Park Drive
Valley Forge, PA 19482-1110  Wayne, PA 19087-1815

For clients of Vanguard's Institutional Division .  .  .

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 2900                455 Devon Park Drive
Valley Forge, PA 19482-2900  Wayne, PA 19087-1815
- --------------------------------------------------------------------------------
A NOTE ON LARGE REDEMPTIONS
It is important that you call Vanguard  before you redeem a large dollar amount.
It is our responsibility to consider the interests of all fund shareholders, and
so we reserve the right to delay  delivery of your  redemption  proceeds--up  to
seven days--if the amount may disrupt a Fund's operation or performance.
     If you redeem more than  $250,000  worth of Fund  shares  within any 90-day
period,  the  Fund  reserves  the  right  to pay  part or all of the  redemption
proceeds above $250,000  in-kind,  i.e., in securities,  rather than in cash. If
payment is made in-kind,  you may incur  brokerage  commissions  if you elect to
sell the securities for cash.
- --------------------------------------------------------------------------------

OPTIONS FOR REDEMPTION PROCEEDS
You may receive your redemption  proceeds in one of three ways: check,  exchange
to another Vanguard fund, or Fund Express redemption.
- --------------------------------------------------------------------------------
CHECK REDEMPTIONS
Normally,  Vanguard  will  mail  your  check  within  two  business  days  of  a
redemption.
- --------------------------------------------------------------------------------

<PAGE>

39

EXCHANGE REDEMPTIONS
As described  above, an exchange  involves using the proceeds of your redemption
to purchase shares of another Vanguard fund.
- --------------------------------------------------------------------------------
FUND EXPRESS REDEMPTIONS
Vanguard  will  electronically  transfer  funds to your  pre-linked  checking or
savings account.
- --------------------------------------------------------------------------------

FOR OUR MUTUAL PROTECTION
For your best interests and ours, Vanguard applies these additional requirements
to redemptions:

REQUEST IN "GOOD ORDER"
All redemption requests must be received by Vanguard in "good order." This means
that your request must include:
- -    The Fund name and account number.
- -    The amount of the transaction (in dollars or shares).
- -    Signatures  of all owners  exactly as  registered  on the account (for mail
     requests).
- -    Signature guarantees (if required).*
- -    Any supporting legal documentation that may be required.
- -    Any outstanding certificates representing shares to be redeemed.

*For instance, a signature guarantee must  be provided by all registered account
 shareholders when redemption  proceeds are  to be sent to a different person or
 address. A signature guarantee can be obtained from most commercial and savings
 banks, credit  unions,  trust  companies,  or  member  firms  of  a  U.S. stock
 exchange.

TRANSACTIONS ARE PROCESSED AT THE NEXT-DETERMINED SHARE PRICE AFTER VANGUARD HAS
RECEIVED ALL REQUIRED INFORMATION.
- --------------------------------------------------------------------------------
LIMITS ON ACCOUNT ACTIVITY
Because excessive account  transactions can disrupt the management of a Fund and
increase the Fund's costs for all shareholders, Vanguard limits account activity
as follows:
- -    You may make no more  than TWO  SUBSTANTIVE  "ROUND  TRIPS"  THROUGH A FUND
     during any 12-month period.
- -    Your round trips through a Fund must be at least 30 days apart.
- -    A Fund may refuse a share purchase at any time, for any reason.
- -    Vanguard may revoke an investor's telephone exchange privilege at any time,
     for any reason.

     A "round trip" is a redemption from a Fund followed by a purchase back into
the  Fund.  Also  a  "round  trip"  covers  transactions   accomplished  by  any
combination  of methods,  including  transactions  conducted by check,  wire, or
exchange to/from another Vanguard fund. "Substantive" means a dollar amount that
Vanguard  determines,  in  its  sole  discretion,  could  adversely  affect  the
management of a Fund.
- --------------------------------------------------------------------------------
RETURN YOUR SHARE CERTIFICATES
Any portion of your account represented by share certificates cannot be redeemed
until you return the  certificates  to Vanguard.  Certificates  must be returned
(unsigned),  along with a letter  requesting  the sale or  exchange  you wish to
process, via certified mail to:

The Vanguard Group
455 Devon Park Drive
Wayne, PA 19087-1815

<PAGE>

40

- --------------------------------------------------------------------------------
ALL TRADES ARE FINAL
Vanguard  will not cancel any  transaction  request  (including  any purchase or
redemption)  that we believe to be authentic once the request has been initiated
and a confirmation number assigned.
- --------------------------------------------------------------------------------
UNCASHED CHECKS
Please cash your distribution or redemption  checks promptly.  Vanguard will not
pay interest on uncashed checks.
- --------------------------------------------------------------------------------

TRANSFERRING REGISTRATION

You can  transfer  the  registration  of your Fund  shares to  another  owner by
completing a transfer form and sending it to Vanguard.

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 1110                455 Devon Park Drive
Valley Forge, PA 19482-1110  Wayne, PA 19087-1815

For clients of Vanguard's Institutional Division . . .

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 2900                455 Devon Park Drive
Valley Forge, PA 19482-2900  Wayne, PA 19087-1815
- --------------------------------------------------------------------------------

FUND AND ACCOUNT UPDATES

STATEMENTS AND REPORTS
We will send you account and tax  statements to help you keep track of your Fund
account  throughout  the year as well as when you are preparing  your income tax
returns.
     In addition,  you will receive  financial  reports  about your Fund twice a
year.  These   comprehensive   reports  include  an  assessment  of  the  Fund's
performance  (and a comparison  to its industry  benchmark),  an overview of the
financial  markets,  a  report  from  the  adviser,  and  the  Fund's  financial
statements which include a listing of the Fund's holdings.
     To keep  each  Fund's  costs as low as  possible  (so  that  you and  other
shareholders can keep more of the Fund's investment earnings), Vanguard attempts
to  eliminate  duplicate  mailings  to the same  address.  When two or more Fund
shareholders  have the same last name and address,  we send just one Fund report
to that address--instead of mailing separate reports to each shareholder. If you
want us to send  separate  reports,  notify our Client  Services  Department  at
1-800-662-2739.
- --------------------------------------------------------------------------------
CONFIRMATION STATEMENT
Sent each time you buy,  sell, or exchange  shares;  confirms the trade date and
the amount of your transaction.
- --------------------------------------------------------------------------------
PORTFOLIO SUMMARY [BOOK ICON]
Mailed  quarterly for most  accounts;  shows the market value of your account at
the close of the statement period, as well as distributions,  purchases,  sales,
and exchanges for the current calendar year.

<PAGE>

41

- --------------------------------------------------------------------------------
FUND FINANCIAL REPORTS
Mailed in February and August for these Funds.
- --------------------------------------------------------------------------------
TAX STATEMENTS
Generally  mailed in January;  report previous year's dividend and capital gains
distributions,  proceeds from the sale of shares, and distributions from IRAs or
other retirement accounts.
- --------------------------------------------------------------------------------
AVERAGE COST REVIEW STATEMENT [BOOK ICON]
Issued quarterly for most taxable accounts (accompanies your Portfolio Summary);
shows the average  cost of shares that you redeemed  during the  calendar  year,
using only the average cost single category method.
- --------------------------------------------------------------------------------

<PAGE>

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<PAGE>

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<PAGE>

                     (THIS PAGE INTENTIONALLY LEFT BLANK.)

<PAGE>

GLOSSARY OF INVESTMENT TERMS

ACTIVE MANAGEMENT
An investment approach that seeks to exceed the average returns of the financial
markets.  Active  managers  rely on research,  market  forecasts,  and their own
judgment and experience in selecting securities to buy and sell.

CAPITAL GAINS DISTRIBUTION
Payment to mutual fund  shareholders of gains realized on securities that a fund
has sold at a profit, minus any realized losses.

CASH RESERVES
Cash deposits,  short-term  bank deposits,  and money market  instruments  which
include U.S.  Treasury bills,  bank  certificates  of deposit (CDs),  repurchase
agreements, commercial paper, and banker's acceptances.

COMMON STOCK
A security  representing  ownership  rights in a  corporation.  A stockholder is
entitled  to share in the  company's  profits,  some of which may be paid out as
dividends.

COUNTRY RISK
The chance that domestic events--such as political upheaval, financial troubles,
or a natural disaster--will weaken a country's securities markets.

CURRENCY RISK
The  chance  that a  foreign  investment  will  decrease  in  value  because  of
unfavorable changes in currency exchange rates.

DIVIDEND INCOME
Payment to  shareholders  of income from  interest or  dividends  generated by a
fund's investments.

EXPENSE RATIO
The  percentage  of a fund's  average net assets used to pay its  expenses.  The
expense ratio  includes  management  fees,  administrative  fees,  and any 12b-1
distribution fees.

INDEX
An unmanaged group of securities whose overall performance is used as a standard
to measure investment performance.

INTERNATIONAL STOCK FUND
A mutual fund that invests in the stocks of companies located outside the United
States.

INVESTMENT ADVISER
An  organization  that  makes  the  day-to-day   decisions  regarding  a  fund's
investments.

MUTUAL FUND
An  investment  company  that pools the money of many people and invests it in a
variety of securities in an effort to achieve a specific objective over time.

NET ASSET VALUE (NAV)
The market value of a mutual fund's total assets, minus liabilities,  divided by
the  number of shares  outstanding.  The value of a single  share is called  its
share value or share price.

PASSIVE MANAGEMENT
A low-cost  investment strategy in which a mutual fund attempts to match--rather
than  outperform--a  particular  stock  or bond  market  index.  Also  known  as
indexing.

PRINCIPAL
The amount of money you put into an investment.

TOTAL RETURN
A percentage change,  over a specified time period, in a mutual fund's net asset
value,  with the ending net asset value adjusted to account for the reinvestment
of all distributions of dividends and capital gains.

VOLATILITY
The  fluctuations  in value of a mutual  fund or other  security.  The greater a
fund's volatility, the wider the fluctuations between its high and low prices.

YIELD
Income  (interest  or  dividends)  earned  by  an  investment,  expressed  as  a
percentage of the investment's price.

<PAGE>


                                                    [LOGO]
                                                    [THE VANGUARD GROUP(R) LOGO]

                                                    Post Office Box 2600
                                                    Valley Forge, PA 19482-2600

FOR MORE INFORMATION
If you'd like more information about
Vanguard International Stock Index
Funds, the following documents are
available free upon request:

ANNUAL/SEMIANNUAL REPORT TO
SHAREHOLDERS
Additional information about the
Funds' investments is available in
the Funds' annual and semiannual
reports to shareholders.

STATEMENT OF ADDITIONAL
INFORMATION (SAI)
The SAI provides more detailed
information about the Funds (there
is a separate SAI for Vanguard
Developed Markets and Total
International Stock Index Funds,
which are legally a part of Vanguard
STAR Funds).

The current annual and semiannual
reports and each SAI are
incorporated by reference into
(and are thus legally a part of)
this prospectus.

To receive a free copy of the latest
annual or semiannual report or the
SAI, or to request additional
information about the Funds or other
Vanguard funds, please contact us
as follows:

THE VANGUARD GROUP
INVESTOR INFORMATION
DEPARTMENT
P.O. BOX 2600
VALLEY FORGE, PA
19482-2600

TELEPHONE:
1-800-662-7447 (SHIP)

TEXT TELEPHONE:
1-800-952-3335

WORLD WIDE WEB:
WWW.VANGUARD.COM

If you are a current Fund shareholder
and would like information about
your account, account transactions,
and/or account statements,
please call:

CLIENT SERVICES DEPARTMENT
TELEPHONE:
1-800-662-2739 (CREW)

TEXT TELEPHONE:
1-800-749-7273

INFORMATION PROVIDED BY THE
SECURITIES AND EXCHANGE
COMMISSION (SEC)
You can review and copy
information about the Funds
(including the SAI) at the SEC's
Public Reference Room in
Washington, DC. To find out more
about this public service, call the
SEC at 1-202-942-8090. Reports and
other information about the Funds
are also available on the SEC's
website (www.sec.gov), or you can
receive copies of this information,
for a fee, by electronic request at
the following e-mail address:
[email protected], or by writing
the Public Reference Section,
Securities and Exchange
Commission, Washington, DC
20549-0102.

Funds' Investment Company Act
file number: 811-5972 (811-3919)
for Developed Markets and Total
International Stock Index Funds)

(C) 2000 The Vanguard Group, Inc.
All rights reserved.
Vanguard Marketing Corporation,
Distributor.


P072N-04/28/2000

<PAGE>


                                                          VANGUARD(R)
                                                          INTERNATIONAL STOCK
                                                          INDEX FUNDS

                                                          Participant Prospectus
                                                          April 28, 2000

This prospectus contains
financial data for the
Funds through the
fiscal year ended
December 31, 1999.

VANGUARD EUROPEAN
STOCK INDEX FUND

VANGUARD PACIFIC STOCK
INDEX FUND

VANGUARD EMERGING
MARKETS STOCK INDEX
FUND

VANGUARD DEVELOPED
MARKETS INDEX FUND

VANGUARD TOTAL
INTERNATIONAL STOCK
INDEX FUND

                                         [MEMBERS OF THE VANGUARD GROUP(R) LOGO]

<PAGE>

VANGUARD INTERNATIONAL STOCK INDEX FUNDS
Participant Prospectus
April 28, 2000

A Group of International Stock Index Mutual Funds

- --------------------------------------------------------------------------------
    CONTENTS
- --------------------------------------------------------------------------------
  1 AN INTRODUCTION TO INDEX FUNDS

  2 FUND PROFILES

     2 Vanguard European Stock Index Fund

     5 Vanguard Pacific Stock Index Fund

     8 Vanguard Emerging Markets Stock Index Fund

    11 Vanguard Developed Markets Index Fund

    13 Vanguard Total International Stock Index Fund

 16 MORE ON THE FUNDS

 23 THE FUNDS AND VANGUARD

 24 INVESTMENT ADVISER

 25 DIVIDENDS, CAPITAL GAINS, AND TAXES

 25 SHARE PRICE

 26 FINANCIAL HIGHLIGHTS

 29 INVESTING WITH VANGUARD

 30 ACCESSING FUND INFORMATION BY COMPUTER

 GLOSSARY (inside back cover)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
WHY READING THIS PROSPECTUS IS IMPORTANT

This  prospectus  explains the objective,  risks,  and strategies of each of the
Vanguard  International  Stock Index  Funds.  To  highlight  terms and  concepts
important  to  mutual  fund   investors,   we  have  provided   "Plain  Talk(R)"
explanations along the way. Reading the prospectus will help you to decide which
Fund, if any, is the right  investment  for you. We suggest that you keep it for
future reference.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
IMPORTANT NOTE
The Vanguard  European,  Pacific,  and Emerging  Markets  Stock Index Funds each
offer  two  separate  classes  of  shares:  Investor  and  Institutional.   This
prospectus    offers   the   Funds'   Investor   Shares   to   participants   in
employer-sponsored  retirement or savings plans.  Please call Vanguard to obtain
separate prospectuses that offer:
- -    Investor Shares for private investors ($3,000 minimum)--1-800-662-7447
- -    Institutional    Shares   for   very   large    investors    ($10   million
     minimum)--1-800-523-1036
     The Funds'  separate  share classes have different  expenses;  as a result,
their investment  performances will vary. UNLESS OTHERWISE NOTED, ALL REFERENCES
IN  THIS  PROSPECTUS  TO  FEES,  EXPENSES,  AND  INVESTMENT  PERFORMANCE  RELATE
SPECIFICALLY TO INVESTOR SHARES.
- --------------------------------------------------------------------------------


NEITHER  THE  SECURITIES  AND  EXCHANGE  COMMISSION  NOR  ANY  STATE  SECURITIES
COMMISSION HAS APPROVED OR  DISAPPROVED  OF THESE  SECURITIES OR PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

<PAGE>

1

AN INTRODUCTION TO INDEX FUNDS

WHAT IS INDEXING?
An index is an unmanaged group of securities  whose overall  performance is used
as a  standard  to  measure  investment  performance.  An index  (or  "passively
managed")  fund tries to track,  as closely as possible,  the  performance of an
established target index. The fund does this by holding all, or a representative
sample,  of the securities  that comprise the index.  Keep in mind that an index
fund has operating  expenses and  transaction  costs,  while a market index does
not. Therefore, an index fund, while expected to track its target index closely,
typically will be unable to match the performance of the index exactly.
     Stock index  funds may seek to track  indexes  that hold a certain  type of
stock--such as growth or value,  small-cap or large-cap,  or those from just one
industry--or  they may seek to track  indexes that consist of a broader range of
stocks--for example, the entire foreign stock market.
     Index funds are not  actively  managed by  investment  advisers who buy and
sell  securities  based on research and  analysis in an attempt to  outperform a
particular  benchmark  or the  market as a whole.  Rather,  index  funds  simply
attempt to mirror what the target index does, for better or worse.

WHAT INDEX FUNDS DOES VANGUARD OFFER?
Vanguard  offers a variety of stock (both U.S.  and  international),  bond,  and
balanced index funds.  This prospectus  provides  information  about  Vanguard's
International  Stock  Index  Funds.  There are five such  Funds  offered in this
prospectus,   each  of  which  seeks  to  track  a  different   segment  of  the
international stock market:

- --------------------------------------------------------------------------------
FUND                                       SEEKS TO TRACK
- --------------------------------------------------------------------------------
Vanguard European Stock Index Fund         European stock markets
Vanguard Pacific Stock Index Fund          Australian and Far East
                                            stock markets
Vanguard Emerging Markets Stock            13 emerging stock markets in
 Index Fund                                 Europe, Asia, Africa, and
                                            Latin America
Vanguard Developed Markets Index Fund      European, Australian, and Far
                                            East stock markets
Vanguard Total International Stock         European, Australian, Far East,
 Index Fund                                 and 13 emerging stock
                                            markets in Europe, Asia,
                                            Africa, and Latin America
- --------------------------------------------------------------------------------

     This prospectus contains profiles that summarize key features of each Fund.
Following  the profiles,  there is important  additional  information  about the
Funds.

<PAGE>

2

FUND PROFILE--
VANGUARD(R) EUROPEAN STOCK INDEX FUND

The following  profile  summarizes key features of Vanguard European Stock Index
Fund.

INVESTMENT OBJECTIVE
The  Fund  seeks  to  match  the  performance  of  the  Morgan  Stanley  Capital
International (MSCI) Europe Index.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks  included in the MSCI Europe  Index.  The MSCI Europe Index is
made up of approximately  550 common stocks of companies  located in 15 European
countries--mostly in the United Kingdom,  France,  Germany, and the Netherlands,
(which  comprised  29%, 15%, 14%, and 8% of the Index's  market  capitalization,
respectively,  as of March 31, 2000), as well as in Austria,  Belgium,  Denmark,
Finland, Ireland, Italy, Norway, Portugal,  Spain, Sweden, and Switzerland.  For
more information about passive management,  see "Indexing Methods" under MORE ON
THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. The Index's,
     and therefore the Fund's, heavy exposure to four countries (United Kingdom,
     France,  Germany, and the Netherlands)  involves a higher degree of country
     risk than that of more geographically diversified international funds.
- -    Regional  risk,   which  is  the  chance  that  an  entire   region--namely
     Europe--will be hurt by political troubles,  financial problems, or natural
     disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
and five calendar years and since inception  compare with those of a broad-based
securities  market index. Keep in mind that the Fund's past performance does not
indicate how it will perform in the future.

<PAGE>

3

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1991          12.40%
                              1992          -3.32%
                              1993          29.13%
                              1994           1.88%
                              1995          22.28%
                              1996          21.26%
                              1997          24.23%
                              1998          28.86%
                              1999          16.62%
              ----------------------------------------------------
              Return figures do not reflect the transaction fee
              imposed on purchases prior to April 1, 2000. If the
              fee was reflected, returns would be less than those
              shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 20.37%  (quarter  ended March 31, 1998) and the lowest  return for a
quarter was -14.41% (quarter ended September 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard European Stock
        Index Fund**              16.62%       22.58%            14.61%
      MSCI Europe Index           15.77        22.27             14.78
      -------------------------------------------------------------------------
       *June 18, 1990.
      **Return figures do not reflect the transaction fee imposed on purchases
        prior to April 1, 2000.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.22%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.07%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.29%

<PAGE>

4

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- -------------------------------------------------
   1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
     $30         $93       $163         $368
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.


- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             NEWSPAPER ABBREVIATION
Distributed annually in December        Europe

INVESTMENT ADVISER                      VANGUARD FUND NUMBER
The Vanguard Group, Valley Forge,       079
Pa., since inception
                                        CUSIP NUMBER
INCEPTION DATE                          922042205
June 18, 1990

NET ASSETS AS OF DECEMBER 31, 1999      TICKER SYMBOL
$6.1 billion                            VEURX
- --------------------------------------------------------------------------------

<PAGE>

5

FUND PROFILE--
VANGUARD(R) PACIFIC STOCK INDEX FUND

The following  profile  summarizes key features of Vanguard  Pacific Stock Index
Fund.

INVESTMENT OBJECTIVE
The Fund seeks to match the performance of the MSCI Pacific Free Index.*

*The  designation  "Free" in the name of the Index refers to the securities that
 the Index  tracks.  Some  countries  restrict  foreign  investment  in  certain
 industries, so only stocks that can be bought freely by a fund are tracked.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks included in the MSCI Pacific Free Index. The MSCI Pacific Free
Index consists of approximately  420 common stocks of companies located in Japan
(which comprised 82% of the Index's market capitalization as of March 31, 2000),
Australia,  Hong Kong, New Zealand,  and Singapore.  For more information  about
passive management, see "Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. The Index's,
     and therefore the Fund's,  heavy exposure to Japan involves a higher degree
     of country risk than that of more geographically  diversified international
     funds.
- -    Regional  risk,  which is the  chance  that an  entire  region--namely  the
     Pacific region--will be hurt by political troubles,  financial problems, or
     natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
and  five  years  and  since  inception  compare  with  those  of a  broad-based
securities  market index. Keep in mind that the Fund's past performance does not
indicate how it will perform in the future.

<PAGE>

6

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1991          10.65%
                              1992         -18.17%
                              1993          35.46%
                              1994          13.04%
                              1995           2.75%
                              1996          -7.82%
                              1997         -25.67%
                              1998           2.41%
                              1999          57.05%
              ----------------------------------------------------
              Return figures do not reflect the transaction fee
              imposed on purchases prior to April 1, 2000. If the
              fee was reflected, returns would be less than those
              shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 26.50% (quarter ended December 31, 1998) and the lowest return for a
quarter was -20.69% (quarter ended December 31, 1997).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Pacific Stock
       Index Fund**               57.05%       2.52%              3.20%
      MSCI Pacific Free Index     56.38        2.39               3.08
      -------------------------------------------------------------------------
       *June 18, 1990.
      **Return figures do not reflect the transaction fee imposed on purchases
        prior to April 1, 2000.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.31%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.06%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.37%

<PAGE>

7

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
    $38        $119       $208         $468
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             NEWSPAPER ABBREVIATION
Distributed annually in December        Pacific

INVESTMENT ADVISER                      VANGUARD FUND NUMBER
The Vanguard Group, Valley Forge,       072
Pa., since inception

INCEPTION DATE                          CUSIP NUMBER
June 18, 1990                           922042106

NET ASSETS AS OF DECEMBER 31, 1999      TICKER SYMBOL
$2.5 billion                            VPACX
- --------------------------------------------------------------------------------

<PAGE>

8

FUND PROFILE--
VANGUARD(R) EMERGING MARKETS STOCK INDEX FUND

The following profile summarizes key features of Vanguard Emerging Markets Stock
Index Fund.

INVESTMENT OBJECTIVE
The Fund seeks to match the  performance  of the Select  Emerging  Markets  Free
Index.*

*The  designation  "Free" in the name of the Index refers to the securities that
 the Index  tracks.  Some  countries  restrict  foreign  investment  in  certain
 industries, so only stocks that can be bought freely are tracked.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks included in the Select Emerging Markets Free Index. The Select
Emerging  Markets  Free  Index  includes  approximately  500  common  stocks  of
companies  located in emerging  markets around the world.  As of March 31, 2000,
the largest markets covered in the Index were Mexico,  Brazil,  and South Africa
(which  comprised  16%,  14%,  and  13% of the  Index's  market  capitalization,
respectively).  Other countries represented in the Index included Argentina, the
Czech Republic,  Greece, Hungary,  Indonesia,  Israel, the Philippines,  Poland,
Thailand,  Turkey,  Hong Kong, and Singapore.  MSCI administers the Select Index
exclusively for Vanguard.  For more information  about passive  management,  see
"Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. Country risk
     is especially high for funds that focus on stocks in emerging markets.  The
     Index's,  and therefore the Fund's,  heavy exposure to Mexico,  Brazil, and
     South  Africa  involves a higher  degree of country  risk than that of more
     geographically diversified international funds.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
and five  calendar  years  and  since  inception  compare  with  those of both a
broad-based  securities  market index and the Fund's target index.  Keep in mind
that the Fund's past  performance  does not  indicate how it will perform in the
future.

<PAGE>

9

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1995           0.56%
                              1996          15.83%
                              1997         -16.82%
                              1998         -18.12%
                              1999          61.57%
              ----------------------------------------------------
              Return figures do not reflect the transaction fee
              imposed on purchases and redemptions. If these
              amounts were reflected, returns would be less than
              those shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 28.32% (quarter ended December 31, 1999) and the lowest return for a
quarter was -21.52% (quarter ended June 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Emerging Markets
       Stock Index Fund**         59.96%       4.88%             6.03%
      MSCI Emerging Markets
       Free Index                 66.40        2.00              3.69
      Select Emerging Markets
       Free Index+                60.86        4.81              4.93
      -------------------------------------------------------------------------
       *May 4, 1994.
      **Return figures reflect the 0.5% transaction fee imposed on purchases
        and redemptions.
       +The Select Emerging Markets Free Index is administered by MSCI
        exclusively by Vanguard.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                     0.5%*
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                  0.5%**
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.32%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.26%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.58%

      *The transaction fee on purchases is deducted from all purchases
       (including exchanges from other Vanguard funds) but not from
       reinvested dividends and capital gains.
     **The redemption fee applies to all redemptions (sales or exchanges);
       it is deducted from redemption proceeds, and retained by the Fund.

<PAGE>

10

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year,  that operating  expenses  remain the same, and that you redeem all your
shares at the end of each period.

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
   $161        $292       $434          $849
- -------------------------------------------------

     You would pay the following expenses if you did not redeem your shares (the
difference  being that the Fund's 0.5%  redemption fee would not apply to any of
the periods below, as it would to those above):

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
   $109        $235       $372          $772
- -------------------------------------------------

     THESE  EXAMPLES  SHOULD NOT BE CONSIDERED TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             NEWSPAPER ABBREVIATION
Distributed annually in December        EmerMkt

INVESTMENT ADVISER                      VANGUARD FUND NUMBER
The Vanguard Group, Valley Forge,       533
Pa., since inception

INCEPTION DATE                          CUSIP NUMBER
May 4, 1994                             922042304

NET ASSETS AS OF DECEMBER 31, 1999      TICKER SYMBOL
$1.1 billion                            VEIEX
- --------------------------------------------------------------------------------

<PAGE>

11

FUND PROFILE--
VANGUARD(R) DEVELOPED MARKETS INDEX FUND

The following  profile  summarizes  key features of Vanguard  Developed  Markets
Index Fund.

INVESTMENT OBJECTIVE
The Fund seeks to track the  performance  of the MSCI Europe,  Australasia,  Far
East (EAFE) Index.

INVESTMENT STRATEGIES
The Fund employs a "passively managed"--or  index--investment approach. The Fund
seeks to track the  performance of the MSCI EAFE Index by investing in two other
Vanguard  funds--the European Stock Index Fund and the Pacific Stock Index Fund.
These other Vanguard  funds have the respective  objectives of tracking the MSCI
Europe Index and the MSCI Pacific Free Index,  which together  comprise the MSCI
EAFE Index.  The Fund allocates all or  substantially  all of its assets between
the  European  Stock  Index Fund and the  Pacific  Stock Index Fund based on the
market capitalization of European and Pacific stocks in the MSCI EAFE Index. The
MSCI EAFE Index includes  approximately 1,000 common stocks of companies located
in Europe, Australia, Asia, and the Far East. For more information about passive
management, see "Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles, financial problems, or natural disasters.
- -    Regional risk, which is the chance that an entire  region--either Europe or
     the Far East--will be hurt by political troubles,  financial  problems,  or
     natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The Fund began operations on May 5, 2000, so performance  information (including
annual total returns and average  annual total returns) for a full calendar year
is not yet available.

<PAGE>

12

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based on  estimated  amounts for the current  fiscal  year.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Indirect Operating Expenses:                                          +

      +Although Developed Markets Index Fund is not expected to incur any net
       expenses directly, the Fund's shareholders indirectly bear the expenses
       of the underlying Vanguard funds in which the Fund invests. See THE
       FUNDS AND VANGUARD. It is estimated that the Fund's indirect expense
       ratio for its first fiscal year, based on its underlying investments,
       will be 0.30%.

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- ------------------------
  1 YEAR       3 YEARS
- ------------------------
   $35          $110
- ------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             NEWSPAPER ABBREVIATION
Distributed annually in December        DevMkt

INVESTMENT ADVISER                      VANGUARD FUND NUMBER
The Vanguard Group, Valley Forge,       227
Pa., since inception

INCEPTION DATE                          CUSIP NUMBER
May 5, 2000                             921909701
- --------------------------------------------------------------------------------

<PAGE>

13

FUND PROFILE--
VANGUARD(R) TOTAL INTERNATIONAL STOCK INDEX FUND

The following  profile  summarizes key features of Vanguard Total  International
Stock Index Fund.

INVESTMENT OBJECTIVE
The Fund seeks to match the  performance  of the Total  International  Composite
Index. The Total  International  Composite Index is a combination of the indexes
tracked by the European, Pacific, and Emerging Markets Stock Index Funds.

INVESTMENT STRATEGIES
The Fund seeks to track the  performance  of the Total  International  Composite
Index by investing in three other Vanguard funds--the European Stock Index Fund,
the Pacific Stock Index Fund, and the Emerging  Markets Stock Index Fund.  These
other Vanguard funds have the respective  objectives of tracking the MSCI Europe
Index,  the MSCI Pacific Free Index, and the Select Emerging Markets Free Index,
which  together  comprise  the Total  International  Composite  Index.  The Fund
allocates  all or  substantially  all of its assets  between the European  Stock
Index Fund, the Pacific Stock Index Fund,  and the Emerging  Markets Stock Index
Fund based on the market  capitalization  of  European,  Pacific,  and  emerging
markets stocks in the Total International Composite Index. The Index is a market
capitalization  weighted  index that  combines the MSCI Europe  Index,  the MSCI
Pacific Free Index, and the Select Emerging Markets Free Index. MSCI administers
the  Index  exclusively  for  Vanguard.   For  more  information  about  passive
management, see "Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles, financial problems, or natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the Fund's performance in each calendar year since
inception.  The table shows how the Fund's  average annual total returns for one
calendar  year and since  inception  compare  with  those of both a  broad-based
securities  market  index and the  Fund's  target  index.  Keep in mind that the
Fund's past performance does not indicate how it will perform in the future.

<PAGE>

14

              ----------------------------------------------------
                              ANNUAL TOTAL RETURNS
              ----------------------------------------------------
                              1997          -0.77%
                              1998          15.60%
                              1999          29.92%
              ----------------------------------------------------
              Return figures do not reflect the transaction fee
              imposed on purchases prior to April 1, 2000. If the
              fee was reflected, returns would be less than those
              shown.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 20.49% (quarter ended December 31, 1998) and the lowest return for a
quarter was -14.53% (quarter ended September 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                           1 YEAR          SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Total International
       Stock Index Fund**                  29.92%               11.64%
      MSCI EAFE + Emerging Markets
       Free Index                          30.33                12.11
      Total International Composite
       Index+                              28.13                11.30
      -------------------------------------------------------------------------
       *April 29, 1996.
      **Return figures do not reflect the transaction fee imposed on purchases
        prior to April 1, 2000.
       +Consists of the MSCI EAFE Index and the Select Emerging Markets Free
        Index. This index is administered by MSCI exclusively for Vanguard.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based upon those incurred in the fiscal year ended December 31, 1999.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Indirect Operating Expenses:                                          +

      +Although Total International Stock Index Fund is not expected to incur
       any net expenses directly, the Fund's shareholders indirectly bear the
       expenses of the underlying Vanguard funds in which the Fund invests.
       See THE FUNDS AND VANGUARD. The Fund's indirect expense ratio, based
       on its underlying investments, was 0.34% as of December 31, 1999.

<PAGE>

15


     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- -------------------------------------------------
   1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
    $35         $110       $193          $434
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             NEWSPAPER ABBREVIATION
Distributed annually in December        TotIntl

INVESTMENT ADVISER                      VANGUARD FUND NUMBER
The Vanguard Group, Valley Forge,       113
Pa., since inception

INCEPTION DATE                          CUSIP NUMBER
April 29, 1996                          921909602

NET ASSETS AS OF DECEMBER 31, 1999      TICKER SYMBOL
$2.6 billion                            VGTSX
- --------------------------------------------------------------------------------

<PAGE>

16

MORE ON THE FUNDS
The   following   sections   discuss  other   important   features  of  Vanguard
International   Stock   Index   Funds,    including   indexing   methods,   fund
characteristics,  costs and market-timing,  fund turnover,  and other investment
policies and risks.

WHY INVEST IN INDEX FUNDS?
Index funds appeal to many investors for a number of reasons:
- -    Diversification.  Index  funds  generally  invest in a  diversified  mix of
     companies and industries.
- -    Relative  consistency.  Index  funds  typically  track the  performance  of
     relevant market  benchmarks more closely than comparable  actively  managed
     funds do.
- -    Low cost.  Index  funds do not have  many of the  expenses  of an  actively
     managed  fund--such  as  research--and  keep  trading  activity,  and  thus
     brokerage commissions, to a minimum.
- -    Low  realization  of capital gains.  Because an index fund typically  sells
     securities  only to respond to redemption  requests or to adjust the number
     of shares it holds to  reflect a change in its  target  index,  the  fund's
     turnover  rate--and thus its realization of capital  gains--is usually very
     low.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                             THE COSTS OF INVESTING

Costs are an important  consideration in choosing a mutual fund.  That's because
you, as a shareholder,  pay the costs of operating a fund,  plus any transaction
costs  associated with the fund's buying and selling of securities.  These costs
can erode a substantial  portion of the gross income or capital  appreciation  a
fund achieves. Even seemingly small differences in expenses can, over time, have
a dramatic effect on a fund's performance.
- --------------------------------------------------------------------------------

INDEXING METHODS
     Some index funds hold each stock found in their target indexes in about the
same proportions as represented in the indexes themselves.
     Other index funds may use a different  selection process.  Because it would
be very  expensive to buy all of the stocks held in certain  indexes (the Select
Emerging Markets Free Index, for example,  includes  approximately  500 stocks),
funds  tracking  these  larger  indexes  use a  "sampling"  technique.  Using  a
sophisticated  computer program,  these funds invest in stocks that will, in the
aggregate,  recreate  the key  characteristics  of  their  target  indexes.  For
instance,  if 10% of the market  capitalization  of the MSCI  Europe  Index were
attributed  to companies in Germany,  Vanguard  European  Stock Index Fund would
invest  about 10% of its assets in stocks of German  issuers.  Furthermore,  the
Fund would construct a German portfolio whose size and industry  weightings,  as
well as average financial characteristics,  approximated the German component of
the MSCI Europe Index. The European,  Pacific,  and Emerging Markets Stock Index
Funds each employ this sampling method of indexing.
     While each Fund  attempts  to track the  performance  of its target  index,
there  is no  guarantee  that  securities  selected  for the Fund  will  provide
investment performance exactly matching that of the index.
     Yet another  indexing  approach is to invest in other index funds that seek
to track subsets of a target index. The Total International Stock Index Fund and
Developed  Markets Index Fund both use this "fund of funds" approach,  which can
be very cost-effective and efficient

<PAGE>

17

when starting an index fund from  scratch.  For example,  the Developed  Markets
Index Fund seeks to track the performance of the MSCI EAFE Index by investing in
two other  Vanguard  funds--the  European Stock Index Fund and the Pacific Stock
Index  Fund.  These  other  Vanguard  funds have the  respective  objectives  of
tracking the MSCI Europe Index and the MSCI Pacific Free Index,  which  together
comprise the MSCI EAFE Index. The Fund allocates its assets between the European
Stock  Index  Fund  and  the  Pacific  Stock  Index  Fund  based  on the  market
capitalization of European and Pacific stocks in the MSCI EAFE Index.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                                 "FUND OF FUNDS"

The term "fund of funds" is used to  describe  a mutual  fund that  pursues  its
objective by investing in other mutual funds rather than in individual stocks or
bonds.  A fund of funds may charge for its own direct  expenses,  in addition to
bearing a proportionate share of the expenses charged by the underlying funds in
which it invests. Funds of funds are best suited for long-term investors.
- --------------------------------------------------------------------------------

     To track their  target  indexes as closely as  possible,  the  European and
Pacific  Stock Index Funds  attempt to remain fully  invested in foreign  stocks
included in their particular  indexes.  Each Fund intends to invest at least 95%
of its total  assets in the stocks of its target  index.  The  Emerging  Markets
Stock  Index  Fund  normally  invests  95% of its total  assets in stocks of its
target index, holding the remaining 5% in cash reserves to meet daily redemption
requests.  The Total  International  Stock and  Developed  Markets  Index  Funds
normally hold 100% of their assets in shares of their underlying funds
- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                      THE RISKS OF INTERNATIONAL INVESTING

Because  foreign  stock  markets  operate  differently  from  the  U.S.  market,
Americans  investing  abroad will encounter risks not typically  associated with
U.S.  companies.  For  instance,  foreign  companies are not subject to the same
accounting,  auditing,  and financial  reporting standards and practices as U.S.
companies;  and  their  stocks  may not be as liquid  as those of  similar  U.S.
companies.  In  addition,  foreign  stock  exchanges,   brokers,  and  companies
generally  have  less   government   supervision   and  regulation   than  their
counterparts in the United States. These factors, among others, could negatively
impact the returns Americans receive from foreign investments.
- --------------------------------------------------------------------------------

[FLAG] EACH FUND IS SUBJECT TO STOCK MARKET RISK, WHICH IS THE CHANCE THAT STOCK
     PRICES OVERALL WILL DECLINE OVER SHORT OR EVEN LONG PERIODS.  STOCK MARKETS
     TEND TO MOVE IN  CYCLES,  WITH  PERIODS  OF RISING  PRICES  AND  PERIODS OF
     FALLING PRICES.
       IN ADDITION, INVESTMENTS IN FOREIGN  STOCK MARKETS  CAN BE  RISKIER  THAN
     U.S. STOCK INVESTMENTS. THE PRICES  OF INTERNATIONAL  STOCKS AND THE PRICES
     OF U.S. STOCKS HAVE OFTEN MOVED IN OPPOSITE DIRECTIONS. THESE PERIODS HAVE,
     IN THE PAST, LASTED FOR AS LONG AS SEVERAL YEARS.

<PAGE>

18

     To illustrate the volatility of international  stock prices,  the following
table shows the best, worst, and average total returns for foreign stock markets
over various periods as measured by the MSCI EAFE Index, a widely used barometer
of international market activity. (Total returns consist of dividend income plus
change in market price.) Note that the returns shown do not include the costs of
buying  and  selling  stocks  or other  expenses  that a  real-world  investment
portfolio would incur.  Note, also, that the gap between best and worst tends to
narrow over the long term.

- ----------------------------------------------------------
     INTERNATIONAL STOCK MARKET RETURNS (1969-1999)
- ----------------------------------------------------------
                   1 YEAR    5 YEARS  10 YEARS   20 YEARS
- ----------------------------------------------------------
Best                69.9%     36.5%     22.8%      16.3%
Worst              -23.2       1.5       5.9       12.0
Average             15.2      13.6      14.5       14.7
- ----------------------------------------------------------

     The table  covers all of the 1-, 5-,  10-,  and 20-year  periods  from 1969
through 1999. Keep in mind that this was a particularly favorable period for all
stock markets.  These average returns reflect past  performance on international
stocks;  you should not regard  them as an  indication  of future  returns  from
either foreign markets as a whole or any of the Funds in particular.
     Note that the preceding chart does not take into account  returns  measured
by the MSCI  Emerging  Markets  Free  Index,  a widely  used  barometer  of less
developed stock markets.  Emerging  markets can be  substantially  more volatile
than more developed  foreign markets.  In addition,  because the MSCI EAFE Index
tracks the European and Pacific markets  collectively,  the above returns do not
reflect  the  variability  of  returns  from  year to  year  for  these  markets
individually,  or the variability  across these and other geographic  regions or
market  sectors.  To illustrate  this  variability,  the  following  table shows
returns for  different  international  markets--as  well as the U.S.  market for
comparison--from  1990 to 1999, as measured by their  respective  indexes.  Note
that the returns shown do not include the costs of buying and selling  stocks or
other expenses that a real-world investment portfolio would incur.

<PAGE>

19

- --------------------------------------------------------------------------------
            STOCK MARKET RETURNS FOR DIFFERENT INTERNATIONAL MARKETS*
- --------------------------------------------------------------------------------
             EUROPEAN         PACIFIC         EMERGING           U.S.
              MARKET           MARKET          MARKETS         MARKETS
- --------------------------------------------------------------------------------
1990          -2.00%          -34.43%          -10.55%          -3.10%
1991          14.12            11.51            59.91           30.47
1992          -3.92           -18.51            11.40            7.62
1993          29.25            36.15            74.84           10.08
1994           2.82            12.82            -7.31            1.32
1995          22.08             2.89             0.01**         37.58
1996          21.42            -8.23            15.19           22.96
1997          23.75           -25.74           -16.37           33.36
1998          28.68             2.64           -18.39           28.58
1999          15.77            56.38            60.86           21.04
- --------------------------------------------------------------------------------
*    European  market  returns are  measured by the MSCI Europe  Index;  Pacific
     market  returns are  measured  by the MSCI  Pacific  Free  Index;  emerging
     markets returns are  measured  by the Select  Emerging  Markets Free Index;
     and U.S.  market  returns are measured by the Standard & Poor's 500 Index.
**   The inception date of the Select  Emerging  Markets Free  Index  was May 4,
     1994;  returns  shown for  1990 to 1994 are  measured by the MSCI  Emerging
     Markets Free Index.
- --------------------------------------------------------------------------------

     Keep in mind, however,  that these average returns reflect past performance
of the various indexes;  you should not consider them as an indication of future
returns from the indexes, or from any of the Funds in particular.

[FLAG] EACH FUND IS SUBJECT TO COUNTRY RISK,  WHICH IS THE CHANCE THAT POLITICAL
     EVENTS (A WAR, NATIONAL  ELECTIONS),  FINANCIAL PROBLEMS (RISING INFLATION,
     GOVERNMENT  DEFAULT),  OR NATURAL  DISASTERS (AN EARTHQUAKE,  A FLOOD) WILL
     WEAKEN A COUNTRY'S  ECONOMY AND CAUSE  INVESTMENTS  IN THAT COUNTRY TO LOSE
     MONEY.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                  REGIONAL VERSUS BROAD INTERNATIONAL INVESTING

Regional funds are international funds that invest in a particular  geographical
region,  such as Europe or the Pacific  Basin.  Because they  concentrate  their
holdings in a single  region,  these  funds  typically  have higher  share price
volatility  than  broadly  diversified  international  stock  funds  (which,  by
investing in many different foreign markets,  may offset losses from one country
with gains from another at any given time).
- --------------------------------------------------------------------------------

     EUROPEAN STOCK INDEX FUND. Stocks from the United Kingdom, France, Germany,
and the  Netherlands  comprised  29%, 15%, 14%, and 8% of the MSCI Europe Index,
respectively,  as of March 31, 2000;  stocks from the  remaining 11 countries in
the Index have much less  significant  market  capitalization  weightings in the
Index and thus much less impact on the Fund's  total  return.  The Fund's  heavy
exposure to just four  countries  involves a higher  degree of country risk than
that of more geographically diversified international funds.
     PACIFIC STOCK INDEX FUND. Japanese stocks comprised 82% of the MSCI Pacific
Free  Index as of  March  31,  2000.  Therefore,  Japanese  stocks  represent  a
correspondingly  large  component of the Pacific Stock Index Fund's assets.  The
Fund's large investment in the

<PAGE>

20

Japanese stock market involves a higher degree of country risk than that of more
geographically diversified international funds.
     EMERGING MARKETS STOCK INDEX FUND. As discussed above, emerging markets can
be  substantially  more  volatile  than both  U.S.  and more  developed  foreign
markets.  Therefore,  the Emerging Markets Stock Index Fund may expose investors
to a higher  degree of  volatility  than  funds  that  invest in more  developed
markets.
     DEVELOPED  MARKETS  INDEX FUND. As a fund of funds,  the Developed  Markets
Index Fund  intends to invest  all of its assets in shares of the  European  and
Pacific  Stock Index Funds;  indirectly,  its country risk will  proportionately
mirror that of the European and Pacific Stock Index Funds.
     TOTAL  INTERNATIONAL  STOCK  INDEX  FUND.  As a fund of  funds,  the  Total
International  Stock Index Fund intends to invest all of its assets in shares of
the European,  Pacific, and Emerging Markets Stock Index Funds; indirectly,  its
country risk will  proportionately  mirror that of the underlying  funds.  As of
March 31, 2000, the Fund's assets were invested as follows:  60% in the European
Stock Index Fund;  30% in the Pacific Stock Index Fund;  and 10% in the Emerging
Markets Stock Index Fund.

[FLAG]EACH FUND IS SUBJECT TO CURRENCY RISK, WHICH IS THE CHANCE THAT A STRONGER
     U.S.  DOLLAR  WILL  REDUCE  RETURNS  FOR  AMERICANS   INVESTING   OVERSEAS.
     GENERALLY,  WHEN  THE  DOLLAR  RISES  IN VALUE  AGAINST  ANOTHER  COUNTRY'S
     CURRENCY,  YOUR INVESTMENT IN THAT COUNTRY LOSES VALUE BECAUSE ITS CURRENCY
     IS WORTH  FEWER U.S.  DOLLARS.  ON THE OTHER  HAND,  A WEAKER  U.S.  DOLLAR
     GENERALLY   LEADS  TO  HIGHER   RETURNS  FOR  AMERICANS   HOLDING   FOREIGN
     INVESTMENTS.

SECURITY SELECTION
In seeking to track its target index,  the European  Stock Index,  Pacific Stock
Index,  and  Emerging  Markets  Stock Index Funds each invest in a portfolio  of
foreign stocks  selected in a manner that mirrors the weightings of their target
indexes.  The Total  International  Stock Index Fund simply invests in shares of
the European,  Pacific,  and Emerging Markets Stock Index Funds.  Likewise,  the
Developed  Markets  Index Fund will simply  invest in shares of the European and
Pacific Stock Index Funds.  Each Fund seeks to provide  investment  results that
correspond to its target index.  The  correlation  between the  performance of a
Fund and its target index is expected to be at least 95%. (A correlation of 100%
would indicate perfect correlation.)
     EUROPEAN  STOCK INDEX FUND.  The Fund invests in a  statistically  selected
sample of  approximately  550 common  stocks  included in the MSCI Europe Index,
which is made up of the stocks of  companies  located in 15 European  countries.
Four    countries--the    United    Kingdom,    France,    Germany,    and   the
Netherlands--dominate  the  Index,  with 29%,  15%,  14%,  and 8% of the  market
capitalization  of the Index,  respectively,  as of March 31, 2000. The other 11
countries,  which include Austria,  Belgium,  Denmark,  Finland, Ireland, Italy,
Norway, Portugal,  Spain, Sweden, and Switzerland,  are much less significant to
the Index and, consequently, the Fund.
     PACIFIC  STOCK INDEX FUND.  The Fund  invests in a  statistically  selected
sample of the  approximately 420 common stocks included in the MSCI Pacific Free
Index, which is comprised of the stocks of Pacific Basin companies. The Index is
dominated by the Japanese  stock  market,  which  represented  82% of the market
capitalization  of the Index as of March 31,  2000.  The  other  four  countries
represented in the Index are Australia, Hong Kong, New Zealand, and Singapore.

<PAGE>

21

     EMERGING  MARKETS  STOCK INDEX FUND.  The Fund  invests in a  statistically
selected  sample of the  approximately  500 common stocks included in the Select
Emerging Markets Free Index, which is made up of the stocks of companies located
in 13  emerging  markets of  Europe,  Asia,  Africa,  and Latin  America.  Three
countries--Mexico,  Brazil, and South Africa--represent a majority of the Index,
with 16%, 14%, and 13% of the market capitalization of the Index,  respectively,
as of March  31,  2000.  The other 10  countries  include  Argentina,  the Czech
Republic, Greece, Hungary, Indonesia, Israel, Philippines, Poland, Thailand, and
Turkey.  The developed  countries of Hong Kong and Singapore are included in the
Index to broaden  diversification  and ensure adequate  liquidity.  The Index is
called  "select"  because  it is modeled on a larger  index--the  MSCI  Emerging
Markets Free  Index--but with certain  adjustments  designed to reduce risk. For
instance,  MSCI  considers  the Hong Kong and  Singapore  markets  too mature to
include in its index, but they are part of the Select Index.  Conversely,  as of
March 31, 2000, the Select Index excluded  certain  countries  found in the MSCI
Emerging Markets Free  Index--Chile,  China,  Colombia,  India,  Jordan,  Korea,
Pakistan,  Peru,  Russia, Sri Lanka, and Taiwan--due to concerns about liquidity
or  entry  barriers  in  those  markets.   MSCI  administers  the  Select  Index
exclusively for Vanguard,  and  periodically  adjusts the included  countries to
keep pace with  evolution  in world  markets.  (Such  adjustments  are made on a
forward-looking  basis, so past  performance of the Select Index always reflects
actual country representation during the relevant period.)
     Although index funds, by their nature, tend to be tax-efficient  investment
vehicles, the Funds are generally managed without regard to tax ramifications.

TRANSACTION FEES
Some of  Vanguard's  index funds charge a  transaction  fee on purchases of fund
shares to offset the higher costs of trading  certain  securities,  particularly
small-company and international  stocks.  The transaction fee ensures that these
higher  costs are borne by the  investors  making the  transactions--and  not by
shareholders  already in the fund who do not generate the costs. All transaction
fees are paid  directly to the fund itself  (unlike a sales  charge or load that
non-Vanguard  funds  may  impose to  compensate  their  sales  representatives).
Without  transaction  fees,  some index funds would have trouble  tracking their
target indexes.

COSTS AND MARKET-TIMING
Some  investors  try to profit from a strategy  called  market-timing--switching
money into  investments  when they expect  prices to rise,  and taking money out
when they expect  prices to fall.  As money is shifted in and out, a fund incurs
expenses  for buying and selling  securities.  These costs are borne by all fund
shareholders,  including the long-term  investors who do not generate the costs.
Therefore,  the  Vanguard  International  Stock  Index  Funds have  adopted  the
following policies, among others, designed to discourage short-term trading:
- -    Each Fund  reserves  the right to reject  any  purchase  request--including
     exchanges from other  Vanguard  funds--that it regards as disruptive to the
     efficient  management  of the Fund.  A purchase  request  could be rejected
     because  of the  timing  of the  investment  or  because  of a  history  of
     excessive trading by the investor.
- -    The  Emerging  Markets  Stock  Index  Fund  charges  a  transaction  fee on
     purchases and redemptions.

<PAGE>

22

- -    Telephone and online exchanges are not accepted for non-IRA accounts.
- -    There is a limit on the number of times you can exchange  into and out of a
     Fund (see "Exchanges" in the INVESTING WITH VANGUARD section).
- -    Each Fund reserves the right to stop offering shares at any time.

     THE  VANGUARD  FUNDS DO NOT  PERMIT  MARKET-TIMING.  DO NOT INVEST IN THESE
FUNDS IF YOU ARE A MARKET-TIMER.

TURNOVER RATE
Although each Fund seeks to invest for the long term, the Funds retain the right
to sell  securities  regardless  of how  long the  securities  have  been  held.
Generally,  a  passively-  managed  fund  sells  securities  only to  respond to
redemption  requests  or to adjust the number of shares held to reflect a change
in the fund's target index. Because of this, the turnover rate for each Fund has
been extremely low. The Financial  Highlights  tables  beginning on page 27 show
historic turnover rates for each Fund.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                                  TURNOVER RATE

Before  investing in a mutual fund,  you should review its turnover  rate.  This
gives an  indication  of how  transaction  costs could affect the fund's  future
returns.  In general,  the greater the volume of buying and selling by the fund,
the greater the impact that brokerage  commissions and other  transaction  costs
will have on its return. Also, funds with high turnover rates may be more likely
to generate  capital gains that must be  distributed to  shareholders  as income
subject to taxes. The average turnover rate for passively  managed foreign stock
index funds in 1999 was roughly  17%; for all foreign  stock funds,  the average
turnover was approximately 76%, according to Morningstar,  Inc. (A turnover rate
of 100% would occur, for example,  if a fund sold and replaced securities valued
at 100% of its net assets within a one-year period.)
- --------------------------------------------------------------------------------

OTHER INVESTMENT POLICIES AND RISKS
Besides  investing  in common  stocks of foreign  companies,  each Fund may make
certain  other  kinds of  investments  to achieve its  objective.  Each Fund may
change its objective without shareholder approval.
     The Funds may also  invest,  to a limited  extent,  in futures  and options
contracts,  warrants,  convertible  securities,  and swap agreements,  which are
types  of  derivatives.  Losses  (or  gains)  involving  futures  contracts  can
sometimes be substantial--in part because a relatively small price movement in a
futures contract may result in an immediate and substantial loss (or gain) for a
fund.  Similar risks exist for warrants  (securities that permit their owners to
purchase  a  specific  number  of  shares  of stock at a  predetermined  price),
convertible securities (securities that may be exchanged for another asset), and
swap  agreements  (contracts  between  two  parties in which each agrees to make
payments to the other based on the return of a specified index or asset).

<PAGE>

23

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                                   DERIVATIVES

A derivative is a financial contract whose value is based on (or "derived" from)
a  traditional  security  (such  as a stock  or a  bond),  an  asset  (such as a
commodity like gold), or a market index (such as the S&P 500 Index). Futures and
options are derivatives  that have been trading on regulated  exchanges for more
than two decades.  These  "traditional"  derivatives are standardized  contracts
that can easily be bought and sold,  and whose market values are  determined and
published  daily. It is these  characteristics  that  differentiate  futures and
options from the relatively new types of derivatives. If used for speculation or
as leveraged investments, derivatives can carry considerable risks.
- --------------------------------------------------------------------------------

     For this  reason,  the  Funds  will  not use  futures,  options,  warrants,
convertible  securities,  or swap  agreements  for  speculative  purposes  or as
leveraged  investments  that  magnify  the gains or losses of an  investment.  A
Fund's  obligation  under  futures  contracts  will not  exceed 20% of its total
assets.
     The reasons for which a Fund will invest in futures and options are:
- -    To keep cash on hand to meet  shareholder  redemptions or other needs while
     simulating full investment in stocks.
- -    To reduce the Fund's  transaction costs or add value when these instruments
     are favorably priced.
     Each Fund may also enter into forward foreign  currency  contracts in order
to maintain  the same  currency  exposure  as its  respective  Index.  A forward
foreign currency contract is an agreement to buy or sell a country's currency at
a specific price on a specific  date,  usually 30, 60, or 90 days in the future.
In other  words,  the  contract  guarantees  an  exchange  rate on a given date.
Managers of  international  stock funds  typically use these  contracts to guard
against sudden,  unfavorable  changes in U.S.  dollar/foreign  currency exchange
rates. However, the Funds will use these contracts for different reasons:
- -    To gain currency exposure when investing in futures.
- -    To settle trades in a foreign currency.

THE FUNDS AND VANGUARD
Vanguard  International  Stock Index Funds are offered by The Vanguard  Group, a
family of more than 35  investment  companies  with more than 100 funds  holding
assets  worth more than $550  billion.  All of the  Vanguard  funds share in the
expenses associated with business operations,  such as personnel,  office space,
equipment, and advertising.
     Vanguard  also  provides   marketing   services  to  the  funds.   Although
shareholders do not pay sales commissions or 12b-1  distribution fees, each fund
pays its allocated share of The Vanguard Group's marketing costs.
     Total International Stock and Developed Markets Index Funds will indirectly
bear a proportionate share of the expenses of the underlying funds in which they
invest.  However, their direct expenses are expected to be very low or zero. For
example,  Total  International  Stock Index Fund has incurred no direct expenses
since its inception in 1996.  Total  International  Stock and Developed  Markets
Index Funds may operate without  incurring direct expenses because Vanguard will
reimburse  them  for  (i)  their  contributions  to the  cost of  operating  the
underlying funds in which they invest,  and (ii) savings in  administrative  and
marketing costs that Vanguard expects to derive from their operations.

<PAGE>

24

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                     VANGUARD'S UNIQUE CORPORATE STRUCTURE

The Vanguard Group is truly a MUTUAL mutual fund company. It is owned jointly by
the funds it oversees and thus  indirectly by the  shareholders  in those funds.
Most other mutual funds are operated by for-profit management companies that may
be owned by one person,  by a group of individuals,  or by investors who own the
management  company's stock. By contrast,  Vanguard  provides its services on an
"at-cost"  basis,  and the funds' expense  ratios  reflect only these costs.  No
separate  management  company reaps profits or absorbs losses from operating the
funds.
- --------------------------------------------------------------------------------

INVESTMENT ADVISER
The Vanguard Group (Vanguard), P.O. Box 2600, Valley Forge, PA 19482, founded in
1975,  serves as the Funds' adviser through its Quantitative  Equity Group. (The
Developed  Markets and Total  International  Stock Index Funds receive  advisory
services indirectly, by investing in other funds.) Vanguard manages the Funds on
an at-cost  basis,  subject to the control of the  Trustees  and officers of the
Funds.  For  the  fiscal  year  ended  December  31,  1999,  the  advisory  fees
represented  an effective  annual rate of less than 0.01% each for the European,
Pacific, and Emerging Markets Stock Index Funds.
     The Funds have  authorized  Vanguard to choose brokers or dealers to handle
the purchase and sale of securities for the Funds, and to get the best available
price and most favorable execution from these brokers or dealers with respect to
all  transactions.  The Funds may direct Vanguard to use a particular broker for
certain  transactions  in exchange for commission  rebates or research  services
provided to the Funds.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                               THE FUNDS' ADVISER

The Vanguard Group provides investment advisory services to many Vanguard funds;
as of December  31,  1999,  the Group  managed  more than $371  billion in total
assets.  The individual  responsible for overseeing the European,  Pacific,  and
Emerging Markets Stock Index Funds' investments is:

GEORGE  U.  SAUTER,  Managing  Director  of  Vanguard,  and  head of  Vanguard's
Quantitative  Equity  Group;  has worked in  investment  management  since 1985;
primary  responsibility  for Vanguard's stock indexing policy and strategy since
joining the company in 1987;  A.B.,  Dartmouth  College;  M.B.A.,  University of
Chicago.
- --------------------------------------------------------------------------------

<PAGE>

25

DIVIDENDS, CAPITAL GAINS, AND TAXES
Each Fund distributes to shareholders  virtually all of its net income (interest
and dividends,  less  expenses),  as well as any capital gains realized from the
sale of its holdings.  Distributions  generally occur in December.  In addition,
the Fund may occasionally be required to make  supplemental  dividend or capital
gains distributions at some other time during the year.
     Your  dividend  and  capital  gains  distributions  will be  reinvested  in
additional  Fund  shares  and  accumulate  on a  tax-deferred  basis  if you are
investing through an employer-sponsored retirement or savings plan. You will not
owe taxes on these  distributions until you begin withdrawals from the plan. You
should consult your plan administrator, your plan's Summary Plan Description, or
your tax adviser about the tax consequences of plan withdrawals.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                                 DISTRIBUTIONS

As a  shareholder,  you are  entitled  to your share of the fund's  income  from
interest and dividends, and gains from the sale of investments. You receive such
earnings as either an income  dividend or a capital gains  distribution.  Income
dividends come from both the dividends that the fund earns from its holdings and
the  interest it receives  from its money market and bond  investments.  Capital
gains are realized  whenever the fund sells securities for higher prices than it
paid for them. These capital gains are either short-term or long-term, depending
on whether the fund held the  securities  for one year or less, or more than one
year.
- --------------------------------------------------------------------------------

SHARE PRICE
Each Fund's share price,  called its net asset value, or NAV, is calculated each
business day after the close of regular  trading on the New York Stock  Exchange
(the NAV is not  calculated  on  holidays  or other  days when the  Exchange  is
closed).  Net  asset  value  per  share  for the  Developed  Markets  and  Total
International  Stock Index Funds is computed by adding up the total value of the
Fund's  investments  (i.e.,  shares of the  underlying  funds) and other assets,
subtracting any of its liabilities  (debts),  and then dividing by the number of
Fund shares outstanding:

                     TOTAL ASSETS - LIABILITIES
NET ASSET VALUE = --------------------------------
                    NUMBER OF SHARES OUTSTANDING

     Net asset value per share for the European,  Pacific,  and Emerging Markets
Stock  Index Funds is  computed  in a similar  way,  by dividing  the net assets
attributed  to each  class by the  number of Fund  shares  outstanding  for that
class.
     Knowing the daily net asset value is useful to you as a shareholder because
it indicates the current value of your investment. The Fund's NAV, multiplied by
the  number of  shares  you own,  gives you the  dollar  amount  you would  have
received  had you sold all of your  shares  back to the Fund that  day.  Because
foreign  securities  markets may operate on days which are not business  days in
the  United  States,  the  value of a Fund's  holdings  may  change on days when
shareholders will not be able to purchase or redeem the Fund's shares.

<PAGE>

26

     A NOTE ON  PRICING:  A Fund's  investments  will be priced at their  market
value when market  quotations are readily  available.  When these quotations are
not  readily  available,  investments  will  be  priced  at  their  fair  value,
calculated  according to procedures  adopted by the Funds' Board of Trustees.  A
Fund also may use fair value pricing if the value of a security held by the Fund
is  materially  affected  by events  occurring  after  the close of the  primary
markets or  exchanges  on which such  security is traded.  In these  situations,
prices used by the Fund to calculate  its net asset value may differ from quoted
or published prices for the underlying securities.
     Each Fund's  share price can be found daily in the mutual fund  listings of
most major  newspapers  under the  heading  "Vanguard  Index  Funds."  Different
newspapers  use different  abbreviations  for each Fund, but the most common are
EUROPE,  PACIFIC,  EMERMKT,  DEVMKT,  and  TOTINTL  for the  European,  Pacific,
Emerging Markets,  Developed Markets, and Total International Stock Index Funds,
respectively.

FINANCIAL HIGHLIGHTS
The following  financial  highlights  tables are intended to help you understand
each Fund's  financial  performance  for the past five years or since  inception
(except for the  Developed  Markets Index Fund,  which did not start  operations
until May 5, 2000), and certain  information  reflects  financial  results for a
single Fund share.  The total  returns in each table  represent the rate that an
investor  would  have  earned  or lost each  year on an  investment  in the Fund
(assuming  reinvestment of all dividend and capital gains  distributions).  This
information  has  been  derived  from  the  financial   statements   audited  by
PricewaterhouseCoopers  LLP, independent  accountants,  whose report--along with
each Fund's financial  statements--is  included in the Funds' most recent annual
report to  shareholders.  You may have the  annual  report  sent to you  without
charge by contacting Vanguard.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                   HOW TO READ THE FINANCIAL HIGHLIGHTS TABLE

This  explanation  uses the  European  Stock Index Fund as an example.  The Fund
began fiscal 1999 with a net asset value (price) of $25.28 per share. During the
year,  the Fund earned  $0.50 per share from  investment  income  (interest  and
dividends) and $3.69 per share from investments that had appreciated in value or
that were sold for higher prices than the Fund paid for them.

Shareholders  received $0.65 per share in the form of dividend and capital gains
distributions.  A portion of each year's  distributions  may come from the prior
year's income or capital gains.

The  earnings  ($4.19  per  share)  minus the  distributions  ($0.65  per share)
resulted in a share price of $28.82 at the end of the year. This was an increase
of $3.54 per share (from  $25.28 at the  beginning  of the year to $28.82 at the
end of the year).  For a shareholder  who  reinvested the  distributions  in the
purchase of more shares, the total return from the Fund was 16.62% for the year.

As of December 31, 1999, the Fund had $6.1 billion in net assets.  For the year,
its  expense  ratio was 0.29%  ($2.90  per  $1,000 of net  assets);  and its net
investment  income  amounted to 1.99% of its  average  net  assets.  It sold and
replaced securities valued at 7% of its net assets.
- --------------------------------------------------------------------------------

<PAGE>

27

- --------------------------------------------------------------------------------
                                      VANGUARD EUROPEAN STOCK INDEX FUND
                                            YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $25.28      $20.13      $16.57      $14.02      $11.76
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .50         .41         .38         .34         .32
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    3.69        5.40        3.63        2.63        2.30
                        --------------------------------------------------------
   Total from Investment
    Operations             4.19        5.81        4.01        2.97        2.62
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.50)       (.52)       (.37)       (.36)       (.32)
 Distributions from
  Realized Capital Gains   (.15)       (.14)       (.08)       (.06)       (.04)
                        --------------------------------------------------------
   Total Distributions     (.65)       (.66)       (.45)       (.42)       (.36)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $28.82      $25.28      $20.13      $16.57      $14.02
================================================================================

TOTAL RETURN*             16.62%      28.86%      24.23%      21.26%      22.28%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $6,106      $4,479      $2,432      $1,595      $1,017
 Ratio of Total
  Expenses to Average
  Net Assets              0.29%       0.29%       0.31%       0.35%       0.35%
 Ratio of Net
  Investment Income to
  Average Net Assets      1.99%       1.97%       2.19%       2.45%       2.66%
 Turnover Rate               7%          7%          3%          4%          2%
================================================================================
*Total return figures do not reflect the transaction fee on purchases imposed
 prior to 4/1/2000.

- --------------------------------------------------------------------------------
                                      VANGUARD PACIFIC STOCK INDEX FUND
                                           YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $ 7.84       $7.72      $10.51      $11.50      $11.31
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .08        .085         .09         .10         .10
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    4.39        .100       (2.79)      (1.00)        .21
                        --------------------------------------------------------
   Total from Investment
    Operations             4.47        .185       (2.70)       (.90)        .31
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.09)      (.065)       (.09)       (.09)       (.12)
 Distributions from
  Realized Capital Gains     --          --          --          --          --
                        --------------------------------------------------------
   Total Distributions     (.09)      (.065)       (.09)       (.09)       (.12)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $12.22       $7.84      $ 7.72      $10.51      $11.50
================================================================================

TOTAL RETURN*            57.05%       2.41%     -25.67%      -7.82%       2.75%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $2,526      $1,033        $827        $978        $831
 Ratio of Total
  Expenses to Average
  Net Assets              0.37%       0.40%       0.35%       0.35%       0.35%
 Ratio of Net
  Investment Income to
  Average Net Assets      0.95%       1.17%       1.03%       0.89%       0.97%
 Turnover Rate               6%          4%          8%          9%          1%
================================================================================
*Total return figures do not reflect the transaction fee on purchases imposed
 prior to 4/1/2000.

<PAGE>

28

FINANCIAL HIGHLIGHTS (CONTINUED)

- --------------------------------------------------------------------------------
                                  VANGUARD EMERGING MARKETS STOCK INDEX FUND
                                           YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $ 7.91       $9.98      $12.28      $10.75      $10.87
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .24         .27         .24         .18         .15
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    4.62       (2.08)      (2.31)       1.52        (.09)
                        --------------------------------------------------------
   Total from Investment
    Operations             4.86       (1.81)      (2.07)       1.70         .06
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.27)       (.26)       (.23)       (.17)       (.18)
 Distributions from
  Realized Capital Gains     --          --          --          --          --
                        --------------------------------------------------------
   Total Distributions     (.27)       (.26)       (.23)       (.17)       (.18)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $21.50       $7.91      $ 9.98      $12.28      $10.75
================================================================================

TOTAL RETURN*            61.57%     -18.12%     -16.82%      15.83%       0.56%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $1,138        $577        $660        $637        $234
 Ratio of Total
  Expenses to Average
  Net Assets              0.58%       0.61%       0.57%       0.60%       0.60%
 Ratio of Net
  Investment Income to
  Average Net Assets      2.55%       2.99%       1.96%       1.69%       2.00%
 Turnover Rate              22%         22%         19%          1%          3%
================================================================================
*Total return figures do not reflect the transaction fee on purchases (0.5%
 beginning 4/1/2000, 1.0% from 11/3/1997 to 3/31/2000, 1.5% from 1/1/1997 to
 11/2/1997, 2.0% in 1995 through 1996), or the transaction fee on redemptions
 (0.5% beginning 4/1/2000, 1.0% through 3/31/2000).

- --------------------------------------------------------------------------------
                                          VANGUARD TOTAL INTERNATIONAL
                                                STOCK INDEX FUND
                                             YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                                       1999         1998         1997     1996*
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF PERIOD                 $11.19       $ 9.87       $10.14    $10.26
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income                  .21          .21          .18      .150
 Capital Gain Distributions
  Received                              .04          .02          .02      .015
 Net Realized and
  Unrealized Gain
  (Loss) on Investments                3.09         1.31         (.28)    (.110)
                        --------------------------------------------------------
   Total from Investment
    Operations                         3.34         1.54         (.08)     .055
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income                    (.21)        (.21)        (.17)    (.160)
 Distributions from
  Realized Capital Gains               (.01)        (.01)        (.02)    (.015)
                        --------------------------------------------------------
   Total Distributions                 (.22)        (.22)        (.19)    (.175)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END OF PERIOD       $14.31       $11.19       $ 9.87    $10.14
================================================================================

TOTAL RETURN**                       29.92%       15.60%       -0.77%     0.55%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Period (Millions)                  $2,570       $1,375         $903      $280
 Ratio of Total
  Expenses to Average
  Net Assets                             0%           0%           0%        0%
 Ratio of Net
  Investment Income to
  Average Net Assets                  2.04%        2.18%        2.19%    1.51%+
 Turnover Rate                           1%           2%           0%        0%
================================================================================
 *April 29 (inception) through December 31, 1996.
**Total return figures do not reflect the transaction fee on purchases imposed
  prior to April 1, 2000.
 +Annualized.

The Funds are not  sponsored,  sold,  promoted,  or endorsed  by Morgan  Stanley
Capital International.  Standard & Poor's(R)," "S&P(R)," "S&P 500(R)," "Standard
& Poor's 500," and "500," are trademarks of The McGraw-Hill Companies, Inc., and
have been licensed for use by The Vanguard Group.

<PAGE>

29

INVESTING WITH VANGUARD

One or more of the Funds is an investment  option in your  retirement or savings
plan. Your plan  administrator or your employee  benefits office can provide you
with detailed  information  on how to  participate in your plan and how to elect
any of the Funds as an investment option.
- -    If you have any questions  about a Fund or Vanguard,  including those about
     the Fund's investment objective,  strategies,  or risks, contact Vanguard's
     Participant Access Center, toll-free, at 1-800-523-1188.
- -    If you have questions about your account,  contact your plan  administrator
     or the organization that provides recordkeeping services for your plan.

INVESTMENT OPTIONS AND ALLOCATIONS
Your  plan's  specific  provisions  may  allow  you to  change  your  investment
selections,  the amount of your  contributions,  or how your  contributions  are
allocated  among the  investment  choices  available  to you.  Contact your plan
administrator or employee benefits office for more details.

TRANSACTIONS
Contributions,  exchanges,  or  redemptions  of a Fund's shares are processed as
soon as they have been received by Vanguard in good order. Good order means that
your request includes complete  information on your contribution,  exchange,  or
redemption, and that Vanguard has received the appropriate assets.
     In all cases, your transaction will be based on the Fund's  next-determined
net asset value after  Vanguard  receives  your  request (or, in the case of new
contributions,  the  next-determined net asset value after Vanguard receives the
order from your plan administrator).  As long as this request is received before
the close of regular  trading on the New York Stock  Exchange,  generally 4 p.m.
Eastern time, you will receive that day's net asset value.

EXCHANGES
The exchange  privilege (your ability to redeem shares from one fund to purchase
shares of another  fund) may be available to you through your plan.  Although we
make every  effort to maintain  the exchange  privilege,  Vanguard  reserves the
right to revise or terminate this privilege,  limit the amount of an exchange or
reject any exchange,  at any time, without notice.  Because excessive  exchanges
can  potentially  disrupt the management of a Fund and increase its  transaction
costs,  Vanguard  limits  participant  exchange  activity  to no more  than FOUR
SUBSTANTIVE  "ROUND TRIPS"  THROUGH THE FUND (at least 90 days apart) during any
12-month  period.  A "round  trip" is a redemption  from the Fund  followed by a
purchase back into the Fund.  "Substantive"  means a dollar amount that Vanguard
determines, in its sole discretion, could adversely affect the management of the
Fund.
     Before  making an exchange to or from another fund  available in your plan,
consider the following:
- -    Certain investment options,  particularly funds made up of company stock or
     investment contracts, may be subject to unique restrictions.
- -    Make sure to read that  fund's  prospectus.  Contact  Vanguard  Participant
     Access Center, toll-free, at 1-800-523-1188 for a copy.
- -    Vanguard can accept exchanges only as permitted by your plan.  Contact your
     plan  administrator for details on the exchange policies that apply to your
     plan.

<PAGE>

30

- --------------------------------------------------------------------------------
A NOTE ON REDEMPTION  FEES: The Emerging Markets Stock Index Fund imposes a 0.5%
redemption fee on all share redemptions. Currently, redemption fees do not apply
to Fund  shares  held  through  Vanguard's  separate  recordkeeping  system  for
employee benefit plan accounts,  due to certain economies  associated with these
accounts.  However, the Fund reserves the right to impose redemption fees on its
shares  at any time if  warranted  by the  Fund's  future  costs  of  processing
redemptions from these accounts.
- --------------------------------------------------------------------------------

ACCESSING FUND INFORMATION BY COMPUTER

- --------------------------------------------------------------------------------
VANGUARD ON THE WORLD WIDE WEB WWW.VANGUARD.COM
Use your personal computer to visit Vanguard's education-oriented website, which
provides  timely news and  information  about  Vanguard  funds and services;  an
online  "university"  that  offers  a  variety  of  mutual  fund  classes;   and
easy-to-use,  interactive  tools to help you  create  your  own  investment  and
retirement strategies.
- --------------------------------------------------------------------------------

<PAGE>

                     (THIS PAGE INTENTIONALLY LEFT BLANK.)

<PAGE>

                     (THIS PAGE INTENTIONALLY LEFT BLANK.)

<PAGE>

GLOSSARY OF INVESTMENT TERMS

ACTIVE MANAGEMENT
An investment approach that seeks to exceed the average returns of the financial
markets.  Active  managers  rely on research,  market  forecasts,  and their own
judgment and experience in selecting securities to buy and sell.

CAPITAL GAINS DISTRIBUTION
Payment to mutual fund  shareholders of gains realized on securities that a fund
has sold at a profit, minus any realized losses.

CASH RESERVES
Cash deposits,  short-term  bank deposits,  and money market  instruments  which
include U.S.  Treasury bills,  bank  certificates  of deposit (CDs),  repurchase
agreements, commercial paper, and banker's acceptances.

COMMON STOCK
A security  representing  ownership  rights in a  corporation.  A stockholder is
entitled  to share in the  company's  profits,  some of which may be paid out as
dividends.

COUNTRY RISK
The chance that domestic events--such as political upheaval, financial troubles,
or a natural disaster--will weaken a country's securities markets.

CURRENCY RISK
The  chance  that a  foreign  investment  will  decrease  in  value  because  of
unfavorable changes in currency exchange rates.

DIVIDEND INCOME
Payment to  shareholders  of income from  interest or  dividends  generated by a
fund's investments.

EXPENSE RATIO
The  percentage  of a fund's  average net assets used to pay its  expenses.  The
expense ratio  includes  management  fees,  administrative  fees,  and any 12b-1
distribution fees.

INDEX
An unmanaged group of securities whose overall performance is used as a standard
to measure investment performance.

INTERNATIONAL STOCK FUND
A mutual fund that invests in the stocks of companies located outside the United
States.

INVESTMENT ADVISER
An  organization  that  makes  the  day-to-day   decisions  regarding  a  fund's
investments.

MUTUAL FUND
An  investment  company  that pools the money of many people and invests it in a
variety of securities in an effort to achieve a specific objective over time.

NET ASSET VALUE (NAV)
The market value of a mutual fund's total assets, minus liabilities,  divided by
the  number of shares  outstanding.  The value of a single  share is called  its
share value or share price.

PASSIVE MANAGEMENT
A low-cost  investment strategy in which a mutual fund attempts to match--rather
than  outperform--a  particular  stock  or bond  market  index.  Also  known  as
indexing.

PRINCIPAL
The amount of money you put into an investment.

TOTAL RETURN
A percentage change,  over a specified time period, in a mutual fund's net asset
value,  with the ending net asset value adjusted to account for the reinvestment
of all distributions of dividends and capital gains.

VOLATILITY
The  fluctuations  in value of a mutual  fund or other  security.  The greater a
fund's volatility, the wider the fluctuations between its high and low prices.

YIELD
Income  (interest  or  dividends)  earned  by  an  investment,  expressed  as  a
percentage of the investment's price.

<PAGE>


                                                    [LOGO]
                                                    [THE VANGUARD GROUP(R) LOGO]

                                                    Institutional Division
                                                    Post Office Box 2900
                                                    Valley Forge, PA 19482-2900

FOR MORE INFORMATION
If you'd like more information about
Vanguard International Stock Index
Funds, the following documents are
available free upon request:

ANNUAL/SEMIANNUAL REPORTS
TO SHAREHOLDERS
Additional information about the
Funds' investments is available in
the Funds' annual and semiannual
reports to shareholders.

STATEMENT OF ADDITIONAL
INFORMATION (SAI)
The SAI provides more detailed
information about the Funds (there
is a separate SAI for Vanguard
Developed Markets and Total
International Stock Index Funds,
which are legally a part of Vanguard
STAR Funds).

The current annual and semiannual
reports and each SAI are
incorporated by reference into
(and are thus legally a part of)
this prospectus.

To receive a free copy of the latest
annual or semiannual report or the
SAI, or to request additional
information about the Funds or other
Vanguard funds, please contact us
as follows:

THE VANGUARD GROUP
PARTICIPANT ACCESS CENTER
P.O. BOX 2900
VALLEY FORGE, PA  19482-2900

TELEPHONE:
1-800-523-1188

TEXT TELEPHONE:
1-800-523-8004

WORLD WIDE WEB:
WWW.VANGUARD.COM

INFORMATION PROVIDED BY THE
SECURITIES AND EXCHANGE
COMMISSION (SEC)
You can review and copy
information about the Funds
(including the SAI) at the SEC's
Public Reference Room in
Washington, DC. To find out more
about this public service, call the
SEC at 1-202-942-8090. Reports and
other information about the Funds
are also available on the SEC's
website (www.sec.gov), or you can
receive copies of this information,
for a fee, by electronic request at
the following e-mail address:
[email protected], or by writing
the Public Reference Section,
Securities and Exchange
Commission, Washington, DC
20549-0102.

Funds' Investment Company Act
file number: 811-5972 (811-3919)
for Developed Markets and Total
International Stock Index Funds)

(C) 2000 The Vanguard Group, Inc.
All rights reserved.
Vanguard Marketing Corporation,
Distributor.


I072N-04/28/2000

<PAGE>


                                                       VANGUARD(R) INTERNATIONAL
                                                       STOCK INDEX FUNDS
                                                       INSTITUTIONAL SHARES

                                                       VANGUARD(R) INSTITUTIONAL
                                                       DEVELOPED MARKETS
                                                       INDEX FUND

                                                       Prospectus
                                                       April 28, 2000

This prospectus contains
financial data for the
Funds through the
fiscal year ended
December 31, 1999.

VANGUARD INTERNATIONAL
STOCK INDEX FUNDS
INSTITUTIONAL SHARES OF:

  VANGUARD EUROPEAN
  STOCK INDEX FUND

  VANGUARD PACIFIC
  STOCK INDEX FUND

  VANGUARD EMERGING
  MARKETS STOCK INDEX
  FUND

VANGUARD INSTITUTIONAL
DEVELOPED MARKETS
INDEX FUND


                                         [MEMBERS OF THE VANGUARD GROUP(R) LOGO]

<PAGE>

VANGUARD INTERNATIONAL STOCK INDEX FUNDS INSTITUTIONAL SHARES
VANGUARD INSTITUTIONAL DEVELOPED MARKETS INDEX FUND
Prospectus
April 28, 2000

A Group of International Stock Index Mutual Funds

- --------------------------------------------------------------------------------
    CONTENTS
- --------------------------------------------------------------------------------
  1 AN INTRODUCTION TO INDEX FUNDS

  2 FUND PROFILES

     2 Vanguard European Stock Index Fund Institutional Shares

     5 Vanguard Pacific Stock Index Fund Institutional Shares

     8 Vanguard Emerging Markets Stock Index Fund Institutional Shares

    12 Vanguard Institutional Developed Markets Index Fund

 14 MORE ON THE FUNDS

 21 THE FUNDS AND VANGUARD

 22 INVESTMENT ADVISER

 22 DIVIDENDS, CAPITAL GAINS, AND TAXES

 24 SHARE PRICE

 25 FINANCIAL HIGHLIGHTS

 28 INVESTING WITH VANGUARD

    28 Services and Account Features

    29 Types of Accounts

    29 Buying Shares

    31 Redeeming Shares

    34 Transferring Registration

    34 Fund and Account Updates

    35 Mandatory Conversion to Investor Shares

 GLOSSARY (inside back cover)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
WHY READING THIS PROSPECTUS IS IMPORTANT
This  prospectus  explains the objective,  risks,  and strategies of each of the
Vanguard  International  Stock Index  Funds  Institutional  Shares and  Vanguard
Institutional  Developed  Markets  Index Fund.  To highlight  terms and concepts
important  to  mutual  fund   investors,   we  have  provided   "Plain  Talk(R)"
explanations along the way. Reading the prospectus will help you to decide which
Fund, if any, is the right  investment  for you. We suggest that you keep it for
future reference.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
IMPORTANT NOTE
The Vanguard  European,  Pacific,  and Emerging  Markets  Stock Index Funds each
offer  two  separate  classes  of  shares:  Investor  and  Institutional.   This
prospectus  offers the Funds'  Institutional  Shares,  which have an  investment
minimum of $10 million and  generally are not available to investors who require
special employee benefit plan services.  Please call Vanguard at  1-800-662-7447
to obtain a separate  prospectus  that offers the Funds' Investor Shares as well
as the investor version of Vanguard Institutional  Developed Markets Fund. These
options have an investment minimum of $3,000 ($1,000 for IRAs).
     The Funds'  separate  share classes have different  expenses;  as a result,
their investment  performances will vary. UNLESS OTHERWISE NOTED, ALL REFERENCES
IN  THIS  PROSPECTUS  TO  FEES,  EXPENSES,  AND  INVESTMENT  PERFORMANCE  RELATE
SPECIFICALLY TO INSTITUTIONAL SHARES.
- --------------------------------------------------------------------------------


NEITHER  THE  SECURITIES  AND  EXCHANGE  COMMISSION  NOR  ANY  STATE  SECURITIES
COMMISSION HAS APPROVED OR  DISAPPROVED  OF THESE  SECURITIES OR PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

<PAGE>

1

AN INTRODUCTION TO INDEX FUNDS

WHAT IS INDEXING?
An index is an unmanaged group of securities  whose overall  performance is used
as a  standard  to  measure  investment  performance.  An index  (or  "passively
managed")  fund tries to track,  as closely as possible,  the  performance of an
established target index. The fund does this by holding all, or a representative
sample,  of the securities  that comprise the index.  Keep in mind that an index
fund has operating  expenses and  transaction  costs,  while a market index does
not. Therefore, an index fund, while expected to track its target index closely,
typically will be unable to match the performance of the index exactly.
     Stock index  funds may seek to track  indexes  that hold a certain  type of
stock--such as growth or value,  small-cap or large-cap,  or those from just one
industry--or  they may seek to track  indexes that consist of a broader range of
stocks--for example, the entire foreign stock market.
     Index funds are not  actively  managed by  investment  advisers who buy and
sell  securities  based on research and  analysis in an attempt to  outperform a
particular  benchmark  or the  market as a whole.  Rather,  index  funds  simply
attempt to mirror what the target index does, for better or worse.

WHAT INDEX FUNDS DOES VANGUARD OFFER?
Vanguard  offers a variety of stock (both U.S.  and  international),  bond,  and
balanced index funds.  This prospectus  provides  information  about  Vanguard's
International Stock Index Funds Institutional Shares and Vanguard  Institutional
Developed  Markets Index Fund. There are four such funds, each of which seeks to
track a different segment of the international stock market:

- --------------------------------------------------------------------------------
FUND                                       SEEKS TO TRACK
- --------------------------------------------------------------------------------
Vanguard European Stock Index Fund         European stock markets
Vanguard Pacific Stock Index Fund          Australian and Far East stock
                                            markets
Vanguard Emerging Markets Stock            13 emerging stock markets in
 Index Fund                                 Europe, Asia, Africa, and
                                            Latin America
Vanguard Institutional Developed           European, Australian, and Far
 Markets Index Fund                         East stock markets
- --------------------------------------------------------------------------------

     This prospectus contains profiles that summarize key features of each Fund.
Following  the profiles,  there is important  additional  information  about the
Funds.

<PAGE>

2

FUND PROFILE--VANGUARD(R) EUROPEAN STOCK
INDEX FUND INSTITUTIONAL SHARES

The  following  profile  provides  you with a  summary  of the key  features  of
Vanguard European Stock Index Fund Institutional Shares.

INVESTMENT OBJECTIVE
The  Fund  seeks  to  match  the  performance  of  the  Morgan  Stanley  Capital
International (MSCI) Europe Index.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks  included in the MSCI Europe  Index.  The MSCI Europe Index is
made up of approximately  550 common stocks of companies  located in 15 European
countries--mostly in the United Kingdom,  France,  Germany, and the Netherlands,
(which  comprised  29%, 15%, 14%, and 8% of the Index's  market  capitalization,
respectively,  as of March 31, 2000), as well as in Austria,  Belgium,  Denmark,
Finland, Ireland, Italy, Norway, Portugal,  Spain, Sweden, and Switzerland.  For
more information about passive management,  see "Indexing Methods" under MORE ON
THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. The Index's,
     and therefore the Fund's, heavy exposure to four countries (United Kingdom,
     France,  Germany, and the Netherlands)  involves a higher degree of country
     risk than that of more geographically diversified international funds.
- -    Regional  risk,   which  is  the  chance  that  an  entire   region--namely
     Europe--will be hurt by political troubles,  financial problems, or natural
     disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the performance of the Investor Shares of the Fund
in each calendar year since  inception.  The table shows how the average  annual
total returns of the Fund's  Investor Shares for one and five calendar years and
since  inception  compare with those of a broad-based  securities  market index.
Keep in mind that the Fund's  past  performance  does not  indicate  how it will
perform in the future.

<PAGE>

3

              ----------------------------------------------------
                    ANNUAL TOTAL RETURNS FOR INVESTOR SHARES
              ----------------------------------------------------
                              1991          12.40%
                              1992          -3.32%
                              1993          29.13%
                              1994           1.88%
                              1995          22.28%
                              1996          21.26%
                              1997          24.23%
                              1998          28.86%
                              1999          16.62%
              ----------------------------------------------------
              Return figures do not reflect the transaction fee
              imposed on purchases prior to April 1, 2000.
              Note: This prospectus offers the Fund's Institutional
              Shares, not the Investor Shares. Performance for the
              Investor Shares is shown here because the Fund's
              Institutional Shares are new and don't have a full
              calendar year of performance. However, the two share
              classes are invested in the same portfolio of
              securities and will have the same returns except
              that their operating expenses differ.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 20.37%  (quarter  ended March 31, 1998) and the lowest  return for a
quarter was -14.41% (quarter ended September 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard European Stock
        Index Fund Investor
        Shares**                  16.62%       22.58%            14.61%
      MSCI Europe Index           15.77        22.27             14.78
      -------------------------------------------------------------------------
       *June 18, 1990.
      **Return figures do not reflect the transaction fee imposed on purchases
        prior to April 1, 2000.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold  Institutional  Shares of the Fund.  Since the Fund did not begin  offering
Institutional  Shares until May 5, 2000,  the  expenses  shown under Annual Fund
Operating Expenses are based upon estimated amounts for the current fiscal year.


      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.11%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.07%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.18%

<PAGE>

4

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund's  Institutional  Shares. This example assumes that the Fund
provides a return of 5% a year, and that operating expenses remain the same. The
results  apply  whether or not you  redeem  your  investment  at the end of each
period.

- -------------------------------------------------
   1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
     $20         $64       $113         $255
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $10 million

INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    EuroInst

INCEPTION DATE                          VANGUARD FUND NUMBER
May 5, 2000                             235

NET ASSETS (INVESTOR SHARES) AS OF      CUSIP NUMBER
DECEMBER 31, 1999                       922042502
$6.1 billion
- --------------------------------------------------------------------------------

<PAGE>

5

FUND PROFILE--VANGUARD(R) PACIFIC STOCK
INDEX FUND INSTITUTIONAL SHARES

The following  profile  summarizes key features of Vanguard  Pacific Stock Index
Fund Institutional Shares.

INVESTMENT OBJECTIVE
The Fund seeks to match the performance of the MSCI Pacific Free Index.*

*The  designation  "Free" in the name of the Index refers to the securities that
 the Index  tracks.  Some  countries  restrict  foreign  investment  in  certain
 industries, so only stocks that can be bought freely by a fund are tracked.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks included in the MSCI Pacific Free Index. The MSCI Pacific Free
Index consists of approximately  420 common stocks of companies located in Japan
(which comprised 82% of the Index's market capitalization as of March 31, 2000),
Australia,  Hong Kong, New Zealand,  and Singapore.  For more information  about
passive management, see "Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. The Index's,
     and therefore the Fund's,  heavy exposure to Japan involves a higher degree
     of country risk than that of more geographically  diversified international
     funds.
- -    Regional  risk,  which is the  chance  that an  entire  region--namely  the
     Pacific region--will be hurt by political troubles,  financial problems, or
     natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the performance of the Investor Shares of the Fund
in each calendar year since  inception.  The table shows how the average  annual
total returns of the Fund's  Investor Shares for one and five calendar years and
since  inception  compare with those of a broad-based  securities  market index.
Keep in mind that the Fund's  past  performance  does not  indicate  how it will
perform in the future.

<PAGE>

6

              ----------------------------------------------------
                    ANNUAL TOTAL RETURNS FOR INVESTOR SHARES
              ----------------------------------------------------
                              1991          10.65%
                              1992         -18.17%
                              1993          35.46%
                              1994          13.04%
                              1995           2.75%
                              1996          -7.82%
                              1997         -25.67%
                              1998           2.41%
                              1999          57.05%
              ----------------------------------------------------
              Return figures do not reflect the transaction fee
              imposed on purchases prior to April 1, 2000.
              Note: This prospectus offers the Fund's Institutional
              Shares, not the Investor Shares. Performance for the
              Investor Shares is shown here because the Fund's
              Institutional Shares are new and don't have a full
              calendar year of performance. However, the two share
              classes are invested in the same portfolio of
              securities and will have the same returns except
              that their operating expenses differ.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 26.50% (quarter ended December 31, 1998) and the lowest return for a
quarter was -20.69% (quarter ended December 31, 1997).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                    1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Pacific Stock Index
       Fund Investor Shares**       57.05%       2.52%             3.20%
      MSCI Pacific Free Index       56.38        2.39              3.08
      -------------------------------------------------------------------------
       *June 18, 1990.
      **Return figures do not reflect the transaction fee imposed on purchases
        prior to April 1, 2000.
      -------------------------------------------------------------------------

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold  Institutional  Shares of the Fund.  Since the Fund did not begin  offering
Institutional  Shares until May 5, 2000,  the  expenses  shown under Annual Fund
Operating Expenses are based upon estimated amounts for the current fiscal year.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.18%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.06%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.24%

<PAGE>

7

The  following  example is intended to help you compare the cost of investing in
the Fund with the cost of investing in other mutual funds.  It  illustrates  the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund's  Institutional  Shares. This example assumes that the Fund
provides a return of 5% a year, and that operating expenses remain the same. The
results  apply  whether or not you  redeem  your  investment  at the end of each
period.

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
    $30         $93       $163         $368
- -------------------------------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $10 million

INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    PacInst

INCEPTION DATE                          VANGUARD FUND NUMBER
May 5, 2000                             237

NET ASSETS (INVESTOR SHARES) AS OF      CUSIP NUMBER
DECEMBER 31, 1999                       922042403
$2.5 billion
- --------------------------------------------------------------------------------

<PAGE>

8

FUND PROFILE--VANGUARD(R) EMERGING MARKETS
STOCK INDEX FUND INSTITUTIONAL SHARES

The following profile summarizes key features of Vanguard Emerging Markets Stock
Index Fund Institutional Shares.

INVESTMENT OBJECTIVE
The Fund seeks to match the  performance  of the Select  Emerging  Markets  Free
Index.*

*The  designation  "Free" in the name of the Index refers to the securities that
 the Index  tracks.  Some  countries  restrict  foreign  investment  in  certain
 industries, so only stocks that can be bought freely are tracked.

INVESTMENT STRATEGIES
The Fund  employs  a  "passively  managed"--or  index--investment  approach,  by
investing all or substantially  all of its assets in a representative  sample of
the common stocks included in the Select Emerging Markets Free Index. The Select
Emerging  Markets  Free  Index  includes  approximately  500  common  stocks  of
companies  located in emerging  markets around the world.  As of March 31, 2000,
the largest markets covered in the Index were Mexico,  Brazil,  and South Africa
(which  comprised  16%,  14%,  and  13% of the  Index's  market  capitalization,
respectively).  Other countries represented in the Index included Argentina, the
Czech Republic,  Greece, Hungary,  Indonesia,  Israel, the Philippines,  Poland,
Thailand,  Turkey,  Hong Kong, and Singapore.  MSCI administers the Select Index
exclusively for Vanguard.  For more information  about passive  management,  see
"Indexing Methods" under MORE ON THE FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles,  financial problems, or natural disasters. Country risk
     is especially high for funds that focus on stocks in emerging markets.  The
     Index's,  and therefore the Fund's,  heavy exposure to Mexico,  Brazil, and
     South  Africa  involves a higher  degree of country  risk than that of more
     geographically diversified international funds.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The bar chart and table below  provide an indication of the risk of investing in
the Fund. The bar chart shows the performance of the Investor Shares of the Fund
in each calendar year since  inception.  The table shows how the average  annual
total returns of the Fund's  Investor Shares for one and five calendar years and
since inception compare with those of both a broad-based securities market index
and the Fund's target index.  Keep in mind that the Fund's past performance does
not indicate how it will perform in the future.

<PAGE>

9

              ----------------------------------------------------
                    ANNUAL TOTAL RETURNS FOR INVESTOR SHARES
              ----------------------------------------------------
                              1995           0.56%
                              1996          15.83%
                              1997         -16.82%
                              1998         -18.12%
                              1999          61.57%
              ----------------------------------------------------
              Return figures do not reflect the transaction fee
              imposed on purchases and redemptions. If these
              amounts were reflected, returns would be less than
              those shown.
              Note: This prospectus offers the Fund's Institutional
              Shares, not the Investor Shares. Performance for the
              Investor Shares is shown here because the Fund's
              Institutional Shares are new and don't have a full
              calendar year of performance. However, the two share
              classes are invested in the same portfolio of
              securities and will have the same returns except
              that their operating expenses differ.
              ----------------------------------------------------

     During the period shown in the bar chart, the highest return for a calendar
quarter was 28.32% (quarter ended December 31, 1999) and the lowest return for a
quarter was -21.52% (quarter ended June 30, 1998).

      -------------------------------------------------------------------------
          AVERAGE ANNUAL TOTAL RETURNS FOR YEARS ENDED DECEMBER 31, 1999
      -------------------------------------------------------------------------
                                  1 YEAR      5 YEARS       SINCE INCEPTION*
      -------------------------------------------------------------------------
      Vanguard Emerging Markets
       Stock Index Fund
       Investor Shares**          59.96%        4.88%             6.03%
      MSCI Emerging Markets
       Free Index                 66.40         2.00              3.69
      Select Emerging Markets
       Free Index+                60.86         4.81              4.93
      -------------------------------------------------------------------------
       *May 4, 1994.
      **Return figures reflect the 0.5% transaction fee imposed on purchases
        and redemptions.
       +The Select Emerging Markets Free Index is administered by MSCI
        exclusively for Vanguard.
      -------------------------------------------------------------------------

<PAGE>

10

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold  Institutional  Shares of the Fund.  Since the Fund did not begin  offering
Institutional  Shares until May 5, 2000,  the  expenses  shown under Annual Fund
Operating Expenses are based upon estimated amounts for the current fiscal year.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                     0.5%*
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                  0.5%**
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Management Expenses:                                              0.25%
      12b-1 Distribution Fee:                                            None
      Other Expenses:                                                   0.20%
       TOTAL ANNUAL FUND OPERATING EXPENSES:                            0.45%

      *The transaction fee on purchases is deducted from all purchases
       (including exchanges from other Vanguard funds) but not from
       reinvested dividends and capital gains.
     **The redemption fee applies to all redemptions (sales or exchanges);
       it is deducted from redemption proceeds, and retained by the Fund.

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund's  Institutional  Shares. This example assumes that the Fund
provides a return of 5% a year,  that  operating  expenses  remain the same, and
that you redeem all your shares at the end of each period.

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
   $148        $251       $363          $692
- -------------------------------------------------

     You would pay the following expenses if you did not redeem your shares (the
difference  being that the Fund's 0.5%  redemption fee would not apply to any of
the periods below, as it would to those above):

- -------------------------------------------------
  1 YEAR      3 YEARS    5 YEARS      10 YEARS
- -------------------------------------------------
   $96         $194       $301          $614
- -------------------------------------------------

     THESE  EXAMPLES  SHOULD NOT BE CONSIDERED TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

<PAGE>

11

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $10 million

INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    EmergInst

INCEPTION DATE                          VANGUARD FUND NUMBER
May 5, 2000                             239

NET ASSETS (INVESTOR SHARES) AS OF      CUSIP NUMBER
DECEMBER 31, 1999                       922042601
$1.1 billion
- --------------------------------------------------------------------------------

<PAGE>

12

FUND PROFILE--VANGUARD(R) INSTITUTIONAL DEVELOPED
MARKETS INDEX FUND

The  following  profile  summarizes  key  features  of  Vanguard   Institutional
Developed Markets Index Fund.

INVESTMENT OBJECTIVE
The Fund seeks to track the  performance  of the MSCI Europe,  Australasia,  Far
East (EAFE) Index.

INVESTMENT STRATEGIES
The Fund employs a "passively managed"--or  index--investment approach. The Fund
seeks to track the  performance of the MSCI EAFE Index by investing in two other
Vanguard  funds--the  European  Stock  Index Fund  Institutional  Shares and the
Pacific Stock Index Fund Institutional  Shares.  These other Vanguard funds have
the respective objectives of tracking the MSCI Europe Index and the MSCI Pacific
Free Index,  which together comprise the MSCI EAFE Index. The Fund allocates all
or  substantially  all of its  assets  between  the  European  Stock  Index Fund
Institutional Shares and the Pacific Stock Index Fund Institutional Shares based
on the market  capitalization  of European  and Pacific  stocks in the MSCI EAFE
Index.  The MSCI  EAFE  Index  includes  approximately  1,000  common  stocks of
companies  located  in  Europe,  Australia,  Asia,  and the Far  East.  For more
information about passive  management,  see "Indexing Methods" under MORE ON THE
FUNDS.

PRIMARY RISKS
THE FUND'S TOTAL RETURN,  LIKE STOCK PRICES  GENERALLY,  WILL FLUCTUATE WITHIN A
WIDE RANGE, SO AN INVESTOR COULD LOSE MONEY OVER SHORT OR EVEN LONG PERIODS. The
Fund is also subject to:
- -    Country risk, which is the chance that a country's  economy will be hurt by
     political troubles, financial problems, or natural disasters.
- -    Regional risk, which is the chance that an entire  region--either Europe or
     the Far East--will be hurt by political troubles,  financial  problems,  or
     natural disasters.
- -    Currency  risk,  which is the chance that returns will be hurt by a rise in
     the value of the U.S. dollar versus foreign currencies.
- -    Investment style risk, which is the chance that returns from foreign stocks
     will trail returns from other asset classes or the overall stock market.

PERFORMANCE/RISK INFORMATION
The Fund began operations on May 5, 2000, so performance  information (including
annual total returns and average  annual total returns) for a full calendar year
is not yet available.

<PAGE>

13

FEES AND EXPENSES
The following  table  describes the fees and expenses you may pay if you buy and
hold shares of the Fund. The expenses shown under Annual Fund Operating Expenses
are based on estimated amounts for the current fiscal year.

      SHAREHOLDER FEES (fees paid directly from your investment)
      Sales Charge (Load) Imposed on Purchases:                          None
      Transaction Fee on Purchases:                                      None
      Sales Charge (Load) Imposed on Reinvested Dividends:               None
      Redemption Fee:                                                    None
      Exchange Fee:                                                      None

      ANNUAL FUND OPERATING EXPENSES (expenses deducted from the Fund's assets)
      Indirect Operating Expenses:                                          +

      +Although Developed Markets Index Fund is not expected to incur any net
       expenses directly, the Fund's shareholders indirectly bear the expenses
       of the underlying Vanguard funds in which the Fund invests. See
       THE FUNDS AND VANGUARD. It is estimated that the Fund's indirect
       expense ratio for its first fiscal year, based on its underlying
       investments, will be 0.20%.

     The following example is intended to help you compare the cost of investing
in the Fund with the cost of investing in other mutual funds. It illustrates the
hypothetical  expenses  that you would incur over various  periods if you invest
$10,000 in the Fund.  This example assumes that the Fund provides a return of 5%
a year, and that operating  expenses  remain the same. The results apply whether
or not you redeem your investment at the end of each period.

- ------------------------
  1 YEAR       3 YEARS
- ------------------------
    $24         $74
- ------------------------

     THIS  EXAMPLE  SHOULD NOT BE  CONSIDERED  TO REPRESENT  ACTUAL  EXPENSES OR
PERFORMANCE  FROM THE PAST OR FOR THE  FUTURE.  ACTUAL  FUTURE  EXPENSES  MAY BE
HIGHER OR LOWER THAN THOSE SHOWN.

- --------------------------------------------------------------------------------
ADDITIONAL INFORMATION

DIVIDENDS AND CAPITAL GAINS             MINIMUM INITIAL INVESTMENT
Distributed annually in December        $10 million

INVESTMENT ADVISER
The Vanguard Group, Valley Forge,       NEWSPAPER ABBREVIATION
Pa., since inception                    DevMktInst

INCEPTION DATE                          VANGUARD FUND NUMBER
May 5, 2000                             234

                                        CUSIP NUMBER
                                        921909800
- --------------------------------------------------------------------------------

<PAGE>

14

MORE ON THE FUNDS
The   following   sections   discuss  other   important   features  of  Vanguard
International  Stock Index Funds and Vanguard  Institutional  Developed  Markets
Index  Fund,  including  indexing  methods,  fund  characteristics,   costs  and
market-timing, fund turnover, and other investment policies and risks.

WHY INVEST IN INDEX FUNDS?
Index funds appeal to many investors for a number of reasons:
- -    Diversification.  Index  funds  generally  invest in a  diversified  mix of
     companies and industries.
- -    Relative  consistency.  Index  funds  typically  track the  performance  of
     relevant market  benchmarks more closely than comparable  actively  managed
     funds do.
- -    Low cost.  Index  funds do not have  many of the  expenses  of an  actively
     managed  fund--such  as  research--and  keep  trading  activity,  and  thus
     brokerage commissions, to a minimum.
- -    Low  realization  of capital gains.  Because an index fund typically  sells
     securities  only to respond to redemption  requests or to adjust the number
     of shares it holds to  reflect a change in its  target  index,  the  fund's
     turnover  rate--and thus its realization of capital  gains--is usually very
     low.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                             THE COSTS OF INVESTING

Costs are an important  consideration in choosing a mutual fund.  That's because
you, as a shareholder,  pay the costs of operating a fund,  plus any transaction
costs  associated with the fund's buying and selling of securities.  These costs
can erode a substantial  portion of the gross income or capital  appreciation  a
fund achieves. Even seemingly small differences in expenses can, over time, have
a dramatic effect on a fund's performance.
- --------------------------------------------------------------------------------

INDEXING METHODS
Some index funds hold each stock found in their target indexes in about the same
proportions as represented in the indexes themselves.
     Other index funds may use a different  selection process.  Because it would
be very  expensive to buy all of the stocks held in certain  indexes (the Select
Emerging Markets Free Index, for example,  includes  approximately  500 stocks),
funds  tracking  these  larger  indexes  use a  "sampling"  technique.  Using  a
sophisticated  computer program,  these funds invest in stocks that will, in the
aggregate,  recreate  the key  characteristics  of  their  target  indexes.  For
instance,  if 10% of the market  capitalization  of the MSCI  Europe  Index were
attributed  to companies in Germany,  Vanguard  European  Stock Index Fund would
invest  about 10% of its assets in stocks of German  issuers.  Furthermore,  the
Fund would construct a German portfolio whose size and industry  weightings,  as
well as average financial characteristics,  approximated the German component of
the MSCI Europe Index. The European,  Pacific,  and Emerging Markets Stock Index
Funds each employ this sampling method of indexing.
     While each Fund  attempts  to track the  performance  of its target  index,
there  is no  guarantee  that  securities  selected  for the Fund  will  provide
investment performance exactly matching that of the index.
     Yet another  indexing  approach is to invest in other index funds that seek
to track subsets of a target index. The  Institutional  Developed  Markets Index
Fund uses this "fund of funds"

<PAGE>

15

approach,  which can be very cost-effective and efficient when starting an index
fund from scratch. For example,  the Institutional  Developed Markets Index Fund
seeks to track the  performance of the MSCI EAFE Index by investing in two other
Vanguard  funds--the  European  Stock  Index Fund  Institutional  Shares and the
Pacific Stock Index Fund Institutional  Shares.  These other Vanguard funds have
the respective objectives of tracking the MSCI Europe Index and the MSCI Pacific
Free Index,  which together comprise the MSCI EAFE Index. The Fund allocates its
assets  between  the  European  Stock  Index Fund  Institutional  Shares and the
Pacific Stock Index Fund Institutional Shares based on the market capitalization
of European and Pacific stocks in the MSCI EAFE Index.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                                 "FUND OF FUNDS"

The term "fund of funds" is used to  describe  a mutual  fund that  pursues  its
objective by investing in other mutual funds rather than in individual stocks or
bonds.  A fund of funds may charge for its own direct  expenses,  in addition to
bearing a proportionate share of the expenses charged by the underlying funds in
which it invests. Funds of funds are best suited for long-term investors.
- --------------------------------------------------------------------------------

     To track their  target  indexes as closely as  possible,  the  European and
Pacific  Stock Index Funds  attempt to remain fully  invested in foreign  stocks
included in their particular  indexes.  Each Fund intends to invest at least 95%
of its total  assets in the stocks of its target  index.  The  Emerging  Markets
Stock  Index  Fund  normally  invests  95% of its total  assets in stocks of its
target index, holding the remaining 5% in cash reserves to meet daily redemption
requests.  Institutional  Developed Markets Index Fund normally holds100% of its
assets in shares of its underlying funds.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                      THE RISKS OF INTERNATIONAL INVESTING

Because  foreign  stock  markets  operate  differently  from  the  U.S.  market,
Americans  investing  abroad will encounter risks not typically  associated with
U.S.  companies.  For  instance,  foreign  companies are not subject to the same
accounting,  auditing,  and financial  reporting standards and practices as U.S.
companies;  and  their  stocks  may not be as liquid  as those of  similar  U.S.
companies.  In  addition,  foreign  stock  exchanges,   brokers,  and  companies
generally  have  less   government   supervision   and  regulation   than  their
counterparts in the United States. These factors, among others, could negatively
impact the returns Americans receive from foreign investments.
- --------------------------------------------------------------------------------

[FLAG] EACH FUND IS SUBJECT TO STOCK MARKET RISK, WHICH IS THE CHANCE THAT STOCK
     PRICES OVERALL WILL DECLINE OVER SHORT OR EVEN LONG PERIODS.  STOCK MARKETS
     TEND TO MOVE IN  CYCLES,  WITH  PERIODS  OF RISING  PRICES  AND  PERIODS OF
     FALLING PRICES.
       IN ADDITION, INVESTMENTS IN FOREIGN  STOCK MARKETS  CAN BE  RISKIER  THAN
     U.S. STOCK INVESTMENTS. THE PRICES  OF INTERNATIONAL  STOCKS AND THE PRICES
     OF U.S. STOCKS HAVE OFTEN MOVED IN OPPOSITE DIRECTIONS. THESE PERIODS HAVE,
     IN THE PAST, LASTED FOR AS LONG AS SEVERAL YEARS.

<PAGE>

16

     To illustrate the volatility of international  stock prices,  the following
table shows the best, worst, and average total returns for foreign stock markets
over various periods as measured by the MSCI EAFE Index, a widely used barometer
of international market activity. (Total returns consist of dividend income plus
change in market price.) Note that the returns shown do not include the costs of
buying  and  selling  stocks  or other  expenses  that a  real-world  investment
portfolio would incur.  Note, also, that the gap between best and worst tends to
narrow over the long term.

- ----------------------------------------------------------
     INTERNATIONAL STOCK MARKET RETURNS (1969-1999)
- ----------------------------------------------------------
                   1 YEAR    5 YEARS  10 YEARS   20 YEARS
- ----------------------------------------------------------
Best                69.9%     36.5%     22.8%      16.3%
Worst              -23.2       1.5       5.9       12.0
Average             15.2      13.6      14.5       14.7
- ----------------------------------------------------------

     The table  covers all of the 1-, 5-,  10-,  and 20-year  periods  from 1969
through 1999. Keep in mind that this was a particularly favorable period for all
stock markets.  These average returns reflect past  performance on international
stocks;  you should not regard  them as an  indication  of future  returns  from
either foreign markets as a whole or any of the Funds in particular.
     Note that the preceding chart does not take into account  returns  measured
by the MSCI  Emerging  Markets  Free  Index,  a widely  used  barometer  of less
developed stock markets.  Emerging  markets can be  substantially  more volatile
than more developed  foreign markets.  In addition,  because the MSCI EAFE Index
tracks the European and Pacific markets  collectively,  the above returns do not
reflect  the  variability  of  returns  from  year to  year  for  these  markets
individually,  or the variability  across these and other geographic  regions or
market  sectors.  To illustrate  this  variability,  the  following  table shows
returns for  different  international  markets--as  well as the U.S.  market for
comparison--from  1990 to 1999, as measured by their  respective  indexes.  Note
that the returns shown do not include the costs of buying and selling  stocks or
other expenses that a real-world investment portfolio would incur.

<PAGE>

17

- --------------------------------------------------------------------------------
            STOCK MARKET RETURNS FOR DIFFERENT INTERNATIONAL MARKETS*
- --------------------------------------------------------------------------------
             EUROPEAN         PACIFIC         EMERGING           U.S.
              MARKET           MARKET          MARKETS         MARKETS
- --------------------------------------------------------------------------------
1990          -2.00%          -34.43%          -10.55%          -3.10%
1991          14.12            11.51            59.91           30.47
1992          -3.92           -18.51            11.40            7.62
1993          29.25            36.15            74.84           10.08
1994           2.82            12.82            -7.31            1.32
1995          22.08             2.89             0.01**         37.58
1996          21.42            -8.23            15.19           22.96
1997          23.75           -25.74           -16.37           33.36
1998          28.68             2.64           -18.39           28.58
1999          15.77            56.38            60.86           21.04
- --------------------------------------------------------------------------------
*    European  market  returns are  measured by the MSCI Europe  Index;  Pacific
     market  returns are  measured  by the MSCI  Pacific  Free  Index;  emerging
     markets returns are  measured  by the Select  Emerging  Markets Free Index;
     and U.S.  market  returns are measured by the Standard & Poor's 500 Index.
**   The inception date of the Select  Emerging  Markets Free  Index  was May 4,
     1994;  returns  shown for  1990 to 1994 are measured by  the MSCI  Emerging
     Markets Free Index.
- --------------------------------------------------------------------------------

     Keep in mind, however,  that these average returns reflect past performance
of the various indexes;  you should not consider them as an indication of future
returns from the indexes, or from any of the Funds in particular.

[FLAG] EACH FUND IS SUBJECT TO COUNTRY RISK,  WHICH IS THE CHANCE THAT POLITICAL
     EVENTS (A WAR, NATIONAL  ELECTIONS),  FINANCIAL PROBLEMS (RISING INFLATION,
     GOVERNMENT  DEFAULT),  OR NATURAL  DISASTERS (AN EARTHQUAKE,  A FLOOD) WILL
     WEAKEN A COUNTRY'S  ECONOMY AND CAUSE  INVESTMENTS  IN THAT COUNTRY TO LOSE
     MONEY.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                  REGIONAL VERSUS BROAD INTERNATIONAL INVESTING

Regional funds are international funds that invest in a particular  geographical
region,  such as Europe or the Pacific  Basin.  Because they  concentrate  their
holdings in a single  region,  these  funds  typically  have higher  share price
volatility  than  broadly  diversified  international  stock  funds  (which,  by
investing in many different foreign markets,  may offset losses from one country
with gains from another at any given time).
- --------------------------------------------------------------------------------

     EUROPEAN STOCK INDEX FUND. Stocks from the United Kingdom, France, Germany,
and the  Netherlands  comprised  29%, 15%, 14%, and 8% of the MSCI Europe Index,
respectively,  as of March 31, 2000;  stocks from the  remaining 11 countries in
the Index have much less  significant  market  capitalization  weightings in the
Index and thus much less impact on the Fund's  total  return.  The Fund's  heavy
exposure to just four  countries  involves a higher  degree of country risk than
that of more geographically diversified international funds.
     PACIFIC STOCK INDEX FUND. Japanese stocks comprised 82% of the MSCI Pacific
Free  Index as of  March  31,  2000.  Therefore,  Japanese  stocks  represent  a
correspondingly  large  component of the Pacific Stock Index Fund's assets.  The
Fund's large investment in the

<PAGE>

18

Japanese stock market involves a higher degree of country risk than that of more
geographically diversified international funds.
     EMERGING MARKETS STOCK INDEX FUND. As discussed above, emerging markets can
be  substantially  more  volatile  than both  U.S.  and more  developed  foreign
markets.  Therefore,  the Emerging Markets Stock Index Fund may expose investors
to a higher  degree of  volatility  than  funds  that  invest in more  developed
markets.
     INSTITUTIONAL  DEVELOPED  MARKETS  INDEX  FUND.  As a fund  of  funds,  the
Institutional  Developed  Markets Index Fund intends to invest all of its assets
in shares of the European and Pacific  Stock Index Funds  Institutional  Shares;
indirectly,  its country risk will  proportionately  mirror that of the European
and Pacific Stock Index Funds.

[FLAG] EACH  FUND IS  SUBJECT  TO  CURRENCY  RISK,  WHICH IS THE  CHANCE  THAT A
     STRONGER U.S. DOLLAR WILL REDUCE RETURNS FOR AMERICANS  INVESTING OVERSEAS.
     GENERALLY,  WHEN  THE  DOLLAR  RISES  IN VALUE  AGAINST  ANOTHER  COUNTRY'S
     CURRENCY,  YOUR INVESTMENT IN THAT COUNTRY LOSES VALUE BECAUSE ITS CURRENCY
     IS WORTH  FEWER U.S.  DOLLARS.  ON THE OTHER  HAND,  A WEAKER  U.S.  DOLLAR
     GENERALLY   LEADS  TO  HIGHER   RETURNS  FOR  AMERICANS   HOLDING   FOREIGN
     INVESTMENTS.

SECURITY SELECTION
In seeking to track its target index,  the European  Stock Index,  Pacific Stock
Index,  and  Emerging  Markets  Stock Index Funds each invest in a portfolio  of
foreign stocks  selected in a manner that mirrors the weightings of their target
indexes.  The  Institutional  Developed Markets Index Fund simply invests in the
Institutional  Shares of the European and Pacific  Stock Index Funds.  Each Fund
seeks to provide  investment  results that  correspond to its target index.  The
correlation  between the  performance of a Fund and its target index is expected
to be at least 95%. (A correlation of 100% would indicate perfect correlation.)
     EUROPEAN  STOCK INDEX FUND.  The Fund invests in a  statistically  selected
sample of  approximately  550 common  stocks  included in the MSCI Europe Index,
which is made up of the stocks of  companies  located in 15 European  countries.
Four    countries--the    United    Kingdom,    France,    Germany,    and   the
Netherlands--dominate  the  Index,  with 29%,  15%,  14%,  and 8% of the  market
capitalization  of the Index,  respectively,  as of March 31, 2000. The other 11
countries,  which include Austria,  Belgium,  Denmark,  Finland, Ireland, Italy,
Norway, Portugal,  Spain, Sweden, and Switzerland,  are much less significant to
the Index and, consequently, the Fund.
     PACIFIC  STOCK INDEX FUND.  The Fund  invests in a  statistically  selected
sample of the  approximately 420 common stocks included in the MSCI Pacific Free
Index, which is comprised of the stocks of Pacific Basin companies. The Index is
dominated by the Japanese  stock  market,  which  represented  82% of the market
capitalization  of the Index as of March 31,  2000.  The  other  four  countries
represented in the Index are Australia, Hong Kong, New Zealand, and Singapore.
     EMERGING  MARKETS  STOCK INDEX FUND.  The Fund  invests in a  statistically
selected  sample of the  approximately  500 common stocks included in the Select
Emerging Markets Free Index, which is made up of the stocks of companies located
in 13  emerging  markets of  Europe,  Asia,  Africa,  and Latin  America.  Three
countries--Mexico,  Brazil, and South Africa--represent a majority of the Index,
with 16%, 14%, and 13% of the market capitalization of the Index,  respectively,
as of March  31,  2000.  The other 10  countries  include  Argentina,  the Czech
Republic, Greece, Hungary, Indonesia, Israel, Philippines, Poland, Thailand, and
Turkey. The developed countries of Hong Kong and Singapore are included in

<PAGE>

19

the Index to broaden diversification and ensure adequate liquidity. The Index is
called  "select"  because  it is modeled on a larger  index--the  MSCI  Emerging
Markets Free  Index--but with certain  adjustments  designed to reduce risk. For
instance,  MSCI  considers  the Hong Kong and  Singapore  markets  too mature to
include in its index, but they are part of the Select Index.  Conversely,  as of
March 31, 2000, the Select Index excluded  certain  countries  found in the MSCI
Emerging Markets Free  Index--Chile,  China,  Colombia,  India,  Jordan,  Korea,
Pakistan,  Peru,  Russia, Sri Lanka, and Taiwan--due to concerns about liquidity
or  entry  barriers  in  those  markets.   MSCI  administers  the  Select  Index
exclusively for Vanguard,  and  periodically  adjusts the included  countries to
keep pace with  evolution  in world  markets.  (Such  adjustments  are made on a
forward-looking  basis, so past  performance of the Select Index always reflects
actual country representation during the relevant period.)
     Although index funds, by their nature, tend to be tax-efficient  investment
vehicles, the Funds are generally managed without regard to tax ramifications.

TRANSACTION FEES
Some of  Vanguard's  index funds charge a  transaction  fee on purchases of fund
shares to offset the higher costs of trading  certain  securities,  particularly
small-company and international  stocks.  The transaction fee ensures that these
higher  costs are borne by the  investors  making the  transactions--and  not by
shareholders  already in the fund who do not generate the costs. All transaction
fees are paid  directly to the fund itself  (unlike a sales  charge or load that
non-Vanguard  funds  may  impose to  compensate  their  sales  representatives).
Without  transaction  fees,  some index funds would have trouble  tracking their
target indexes.

COSTS AND MARKET-TIMING
Some  investors  try to profit from a strategy  called  market-timing--switching
money into  investments  when they expect  prices to rise,  and taking money out
when they expect  prices to fall.  As money is shifted in and out, a fund incurs
expenses  for buying and selling  securities.  These costs are borne by all fund
shareholders,  including the long-term  investors who do not generate the costs.
Therefore,  the  Vanguard  International  and Vanguard  Institutional  Developed
Markets Index Funds have adopted the following policies,  among others, designed
to discourage  short-term  trading:
- -    Each Fund  reserves  the right to reject  any  purchase  request--including
     exchanges from other  Vanguard  funds--that it regards as disruptive to the
     efficient  management  of the Fund.  A purchase  request  could be rejected
     because  of the  timing  of the  investment  or  because  of a  history  of
     excessive trading by the investor.
- -    The  Emerging  Markets  Stock  Index  Fund  charges  a  transaction  fee on
     purchases and redemptions.
- -    Telephone and online exchanges are not accepted for non-IRA accounts.
- -    There is a limit on the number of times you can exchange  into and out of a
     Fund (see "Redeeming Shares" in the INVESTING WITH VANGUARD section).
- -    Each Fund reserves the right to stop offering shares at any time.

     THE  VANGUARD  FUNDS DO NOT  PERMIT  MARKET-TIMING.  DO NOT INVEST IN THESE
FUNDS IF YOU ARE A MARKET-TIMER.

<PAGE>

20

TURNOVER RATE
Although each Fund seeks to invest for the long term, the Funds retain the right
to sell  securities  regardless  of how  long the  securities  have  been  held.
Generally,  a  passively-managed  fund  sells  securities  only  to  respond  to
redemption  requests  or to adjust the number of shares held to reflect a change
in the fund's target index. Because of this, the turnover rate for each Fund has
been extremely low. The Financial  Highlights  tables  beginning on page 26 show
historic turnover rates for each Fund.

- --------------------------------------------------------------------------------
                                PLAIN TALK ABOUT
                                  TURNOVER RATE

Before  investing in a mutual fund,  you should review its turnover  rate.  This
gives an  indication  of how  transaction  costs could affect the fund's  future
returns.  In general,  the greater the volume of buying and selling by the fund,
the greater the impact that brokerage  commissions and other  transaction  costs
will have on its return. Also, funds with high turnover rates may be more likely
to generate  capital gains that must be  distributed to  shareholders  as income
subject to taxes. The average turnover rate for passively  managed foreign stock
index funds in 1999 was roughly  17%; for all foreign  stock funds,  the average
turnover was approximately 76%, according to Morningstar,  Inc. (A turnover rate
of 100% would occur, for example,  if a fund sold and replaced securities valued
at 100% of its net assets within a one-year period.)
- --------------------------------------------------------------------------------

OTHER INVESTMENT POLICIES AND RISKS
Besides  investing  in common  stocks of foreign  companies,  each Fund may make
certain  other  kinds of  investments  to achieve its  objective.  Each Fund may
change its objective without shareholder approval.
     The Funds may also  invest,  to a limited  extent,  in futures  and options
contracts,  warrants,  convertible  securities,  and swap agreements,  which are
types  of  derivatives.  Losses  (or  gains)  involving  futures  contracts  can
sometimes be substantial--in part because a relatively small price movement in a
futures contract may result in an immediate and substantial loss (or gain) for a
fund.  Similar risks exist for warrants  (securities that permit their owners to
purchase  a  specific  number  of  shares  of stock at a  predetermined  price),
convertible securities (securities that may be exchanged for another asset), and
swap  agreements  (contracts  between  two  parties in which each agrees to make
payments to the other based on the return of a specified index or asset).

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                                   DERIVATIVES

A derivative is a financial contract whose value is based on (or "derived" from)
a  traditional  security  (such  as a stock  or a  bond),  an  asset  (such as a
commodity like gold), or a market index (such as the S&P 500 Index). Futures and
options are derivatives  that have been trading on regulated  exchanges for more
than two decades.  These  "traditional"  derivatives are standardized  contracts
that can easily be bought and sold,  and whose market values are  determined and
published  daily. It is these  characteristics  that  differentiate  futures and
options from the relatively new types of derivatives. If used for speculation or
as leveraged investments, derivatives can carry considerable risks.
- --------------------------------------------------------------------------------

<PAGE>

21

     For this  reason,  the  Funds  will  not use  futures,  options,  warrants,
convertible  securities,  or swap  agreements  for  speculative  purposes  or as
leveraged  investments  that  magnify  the gains or losses of an  investment.  A
Fund's  obligation  under  futures  contracts  will not  exceed 20% of its total
assets.
     The reasons for which a Fund will invest in futures and options are:
- -    To keep cash on hand to meet  shareholder  redemptions or other needs while
     simulating full investment in stocks.
- -    To reduce the Fund's  transaction costs or add value when these instruments
     are favorably priced.
     Each Fund may also enter into forward foreign  currency  contracts in order
to maintain  the same  currency  exposure  as its  respective  Index.  A forward
foreign currency contract is an agreement to buy or sell a country's currency at
a specific price on a specific  date,  usually 30, 60, or 90 days in the future.
In other  words,  the  contract  guarantees  an  exchange  rate on a given date.
Managers of  international  stock funds  typically use these  contracts to guard
against sudden,  unfavorable  changes in U.S.  dollar/foreign  currency exchange
rates. However, the Funds will use these contracts for different reasons:
- -    To gain currency exposure when investing in futures.
- -    To settle trades in a foreign currency.

THE FUNDS AND VANGUARD
The Funds are offered by The Vanguard Group, a family of more than 35 investment
companies  with more than 100 funds holding assets worth more than $550 billion.
All of the  Vanguard  funds  share  in the  expenses  associated  with  business
operations, such as personnel, office space, equipment, and advertising.
     Vanguard  also  provides   marketing   services  to  the  funds.   Although
shareholders do not pay sales commissions or 12b-1  distribution fees, each fund
pays its allocated share of The Vanguard Group's marketing costs.
     Vanguard Institutional  Developed Markets Index Fund will indirectly bear a
proportionate share of the expenses of the underlying funds in which it invests.
However,  the Fund's  direct  expenses are expected to be very low or zero.  The
Fund may  operate  without  incurring  direct  expenses  because  Vanguard  will
reimburse it for (i) its  contributions  to the cost of operating the underlying
funds in which it invests,  and (ii)  savings in  administrative  and  marketing
costs that Vanguard expects to derive from its operations.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                     VANGUARD'S UNIQUE CORPORATE STRUCTURE

The Vanguard Group is truly a MUTUAL mutual fund company. It is owned jointly by
the funds it oversees and thus  indirectly by the  shareholders  in those funds.
Most other mutual funds are operated by for-profit management companies that may
be owned by one person,  by a group of individuals,  or by investors who own the
management  company's stock. By contrast,  Vanguard  provides its services on an
"at-cost"  basis,  and the funds' expense  ratios  reflect only these costs.  No
separate  management  company reaps profits or absorbs losses from operating the
funds.
- --------------------------------------------------------------------------------

<PAGE>

22

INVESTMENT ADVISER
The Vanguard Group (Vanguard), P.O. Box 2600, Valley Forge, PA 19482, founded in
1975,  serves as the Funds'  adviser  through  its  Quantitative  Equity  Group.
(Institutional   Developed   Markets  Index  Fund  receives   advisory  services
indirectly,  by  investing  in  the  European  and  Pacific  Stock  Index  Funds
Institutional  Shares.) Vanguard manages the Funds on an at-cost basis,  subject
to the  control of the  Trustees  and  officers  of the Funds.  The Funds  began
operations  on May 5,  2000.  Advisory  fees for the  first  fiscal  year of the
European,  Pacific,  and Emerging Markets Stock Index Funds Institutional Shares
is estimated at an effective annual rate of less than 0.01% each.
     The Funds have  authorized  Vanguard to choose brokers or dealers to handle
the purchase and sale of securities for the Funds, and to get the best available
price and most favorable execution from these brokers or dealers with respect to
all  transactions.  The Funds may direct Vanguard to use a particular broker for
certain  transactions  in exchange for commission  rebates or research  services
provided to the Funds.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                               THE FUNDS' ADVISER

The Vanguard Group provides investment advisory services to many Vanguard funds;
as of December  31,  1999,  the Group  managed  more than $371  billion in total
assets.  The individual  responsible for overseeing the European,  Pacific,  and
Emerging Markets Stock Index Funds' investments is:

GEORGE  U.  SAUTER,  Managing  Director  of  Vanguard,  and  head of  Vanguard's
Quantitative  Equity  Group;  has worked in  investment  management  since 1985;
primary  responsibility  for Vanguard's stock indexing policy and strategy since
joining the company in 1987;  A.B.,  Dartmouth  College;  M.B.A.,  University of
Chicago.
- --------------------------------------------------------------------------------

DIVIDENDS, CAPITAL GAINS, AND TAXES

FUND DISTRIBUTIONS
Each Fund distributes to shareholders  virtually all of its net income (interest
and dividends,  less  expenses),  as well as any capital gains realized from the
sale of its holdings.  Distributions generally occur in December. In addition, a
Fund may occasionally be required to make supplemental dividend or capital gains
distributions at some other time during the year. You can receive  distributions
of income dividends or capital gains in cash, or you can have them automatically
reinvested in more shares of the Fund.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                                 DISTRIBUTIONS

As a  shareholder,  you are  entitled  to your share of the fund's  income  from
interest and dividends, and gains from the sale of investments. You receive such
earnings as either an income  dividend or a capital gains  distribution.  Income
dividends come from both the dividends that the fund earns from its holdings and
the  interest it receives  from its money market and bond  investments.  Capital
gains are realized  whenever the fund sells securities for higher prices than it
paid for them. These capital gains are either short-term or long-term, depending
on whether the fund held the  securities  for one year or less, or more than one
year.
- --------------------------------------------------------------------------------

<PAGE>

23

BASIC TAX POINTS
Vanguard will send you a statement  each year showing the tax status of all your
distributions.  In addition,  taxable investors should be aware of the following
basic tax points:
- -    Distributions are taxable to you for federal income tax purposes whether or
     not you reinvest these amounts in additional Fund shares.
- -    Distributions   declared  in  December--if  paid  to  you  by  the  end  of
     January--are  taxable  for  federal  income tax  purposes as if received in
     December.
- -    Any dividends and short-term  capital gains that you receive are taxable to
     you as ordinary income for federal income tax purposes.
- -    Any  distributions  of net  long-term  capital  gains are taxable to you as
     long-term capital gains for federal income tax purposes, no matter how long
     you've owned shares in the Fund.
- -    Capital gains  distributions  may vary  considerably from year to year as a
     result of the Funds' normal investment activities and cash flows.
- -    A sale or exchange of Fund shares is a taxable  event.  This means that you
     may have a capital gain to report as income, or a capital loss to report as
     a deduction, when you complete your federal income tax return.
- -    State and local  income  taxes may apply to any  dividend or capital  gains
     distributions that you receive, as well as to your gains or losses from any
     sale or exchange of Fund shares.
- -    The  European,  Pacific,  and  Emerging  Markets  Stock  Index Funds may be
     subject to foreign taxes or foreign tax withholding on dividends, interest,
     and some  capital  gains that they receive on foreign  securities.  You may
     qualify for an offsetting  credit or deduction under U.S. tax laws for your
     portion of a Fund's foreign tax obligations, provided that you meet certain
     requirements.  Because  the  Institutional  Developed  Markets  Index  Fund
     invests in foreign stocks indirectly through the European and Pacific Stock
     Index Funds,  its investors  are not able to take  advantage of foreign tax
     credits or deductions.  See your tax adviser or IRS  publications  for more
     information.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                              "BUYING A DIVIDEND"

Unless you are investing through a tax-deferred  retirement  account (such as an
IRA),  you  should  avoid  buying  shares  of a fund  shortly  before it makes a
distribution,  because  doing so can cost you money in  taxes.  This is known as
"buying a dividend." For example: On December 15, you invest $5,000,  buying 250
shares for $20 each. If the fund pays a distribution of $1 per share on December
16, its share price would drop to $19 (not counting  market  change).  You still
have only $5,000 (250 shares x $19 = $4,750 in share value, plus 250 shares x $1
=  $250  in  distributions),  but  you  owe  tax on the  $250  distribution  you
received--even  if you reinvest it in more shares. To avoid "buying a dividend,"
check a fund's distribution schedule before you invest.
- --------------------------------------------------------------------------------

GENERAL INFORMATION
BACKUP  WITHHOLDING.   By  law,  Vanguard  must  withhold  31%  of  any  taxable
distributions  or redemptions from your account if you do not:
- -    provide us with your correct taxpayer identification number;
- -    certify that the taxpayer identification number is correct; and
- -    confirm that you are not subject to backup withholding.
Similarly,  Vanguard  must withhold from your account if the IRS instructs us to
do so.

<PAGE>

24

FOREIGN  INVESTORS.  The Vanguard funds  generally do not offer their shares for
sale outside of the United States.  Foreign  investors should be aware that U.S.
withholding and estate taxes may apply to any investments in Vanguard funds.
INVALID  ADDRESSES.  If a dividend or capital gains distribution check mailed to
your address of record is returned as undeliverable, Vanguard will automatically
reinvest  all future  distributions  until you  provide us with a valid  mailing
address.
TAX CONSEQUENCES.  This prospectus provides general tax information only. If you
are investing through a tax-deferred retirement account, such as an IRA, special
tax rules apply. Please consult your tax adviser for detailed  information about
a fund's tax consequences for you.

SHARE PRICE
Each Fund's share price,  called its net asset value, or NAV, is calculated each
business day after the close of regular  trading on the New York Stock  Exchange
(the NAV is not  calculated  on  holidays  or other  days when the  Exchange  is
closed). Net asset value per share for the Institutional Developed Markets Index
Fund is computed by adding up the total value of the Fund's  investments  (i.e.,
shares  of the  underlying  funds)  and  other  assets,  subtracting  any of its
liabilities (debts), and then dividing by the number of Fund shares outstanding:

                     TOTAL ASSETS - LIABILITIES
NET ASSET VALUE = --------------------------------
                    NUMBER OF SHARES OUTSTANDING

     Net asset value per share for the European,  Pacific,  and Emerging Markets
Stock  Index Funds is  computed  in a similar  way,  by dividing  the net assets
attributed  to each  class by the  number of Fund  shares  outstanding  for that
class.
     Knowing the daily net asset value is useful to you as a shareholder because
it indicates the current value of your investment. The Fund's NAV, multiplied by
the  number of  shares  you own,  gives you the  dollar  amount  you would  have
received  had you sold all of your  shares  back to the Fund that  day.  Because
foreign  securities  markets may operate on days which are not business  days in
the  United  States,  the  value of a Fund's  holdings  may  change on days when
shareholders will not be able to purchase or redeem the Fund's shares.
     A NOTE ON  PRICING:  A Fund's  investments  will be priced at their  market
value when market  quotations are readily  available.  When these quotations are
not  readily  available,  investments  will  be  priced  at  their  fair  value,
calculated  according to procedures  adopted by the Funds' Board of Trustees.  A
Fund also may use fair value pricing if the value of a security held by the Fund
is  materially  affected  by events  occurring  after  the close of the  primary
markets or  exchanges  on which such  security is traded.  In these  situations,
prices used by the Fund to calculate  its net asset value may differ from quoted
or published prices for the underlying securities.
     Each Fund's  share price can be found daily in the mutual fund  listings of
most major  newspapers  under the  heading  "Vanguard  Index  Funds."  Different
newspapers  use different  abbreviations  for each Fund, but the most common are
EUROINST, PACINST, EMERGINST, and DEVMKTINST for the Institutional Shares of the
European, Pacific, and Emerging Markets Stock Index Funds, and the Institutional
Developed Markets Index Fund, respectively.

<PAGE>

25

FINANCIAL HIGHLIGHTS
The following  financial  highlights  tables are intended to help you understand
each Fund's  financial  performance  for the past five years or since  inception
(except for  Institutional  Developed  Markets  Index Fund,  which did not start
operations  until May 5,  2000),  and  certain  information  reflects  financial
results for a single Fund share.  The total returns in each table  represent the
rate that an investor  would have earned or lost each year on an  investment  in
the  Fund   (assuming   reinvestment   of  all   dividend   and  capital   gains
distributions).  This information has been derived from the financial statements
audited  by   PricewaterhouseCoopers   LLP,   independent   accountants,   whose
report--along with each Fund's financial  statements--is  included in the Funds'
most recent annual report to  shareholders.  You may have the annual report sent
to you without charge by contacting Vanguard.
NOTE: This prospectus offers the Funds'  Institutional  Shares, not the Investor
Shares.  Information  for the Investor  Shares is shown here because each of the
Fund's Institutional Shares are new. However, the two share classes are invested
in the same portfolio of securities and will have the same financial performance
except to the extent that their operating expenses differ.

- --------------------------------------------------------------------------------
                               PLAIN TALK ABOUT
                   HOW TO READ THE FINANCIAL HIGHLIGHTS TABLE

This  explanation  uses the  European  Stock  Index Fund  Investor  Shares as an
example. The Fund began fiscal 1999 with a net asset value (price) of $25.28 per
share.  During the year, the Fund earned $0.50 per share from investment  income
(interest  and  dividends)  and  $3.69  per  share  from  investments  that  had
appreciated  in value or that were sold for higher prices than the Fund paid for
them.

Shareholders  received $0.65 per share in the form of dividend and capital gains
distributions.  A portion of each year's  distributions  may come from the prior
year's income or capital gains.

The  earnings  ($4.19  per  share)  minus the  distributions  ($0.65  per share)
resulted in a share price of $28.82 at the end of the year. This was an increase
of $3.54 per share (from  $25.28 at the  beginning  of the year to $28.82 at the
end of the year).  For a shareholder  who  reinvested the  distributions  in the
purchase of more shares, the total return from the Fund was 16.62% for the year.

As of December 31, 1999, the Fund had $6.1 billion in net assets.  For the year,
its  expense  ratio was 0.29%  ($2.90  per  $1,000 of net  assets);  and its net
investment  income  amounted to 1.99% of its  average  net  assets.  It sold and
replaced securities valued at 7% of its net assets.
- --------------------------------------------------------------------------------

<PAGE>

26

FINANCIAL HIGHLIGHTS (CONTINUED)
- --------------------------------------------------------------------------------
                                      VANGUARD EUROPEAN STOCK INDEX FUND
                                                INVESTOR SHARES
                                            YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $25.28      $20.13      $16.57      $14.02      $11.76
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .50         .41         .38         .34         .32
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    3.69        5.40        3.63        2.63        2.30
                        --------------------------------------------------------
   Total from Investment
    Operations             4.19        5.81        4.01        2.97        2.62
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.50)       (.52)       (.37)       (.36)       (.32)
 Distributions from
  Realized Capital Gains   (.15)       (.14)       (.08)       (.06)       (.04)
                        --------------------------------------------------------
   Total Distributions     (.65)       (.66)       (.45)       (.42)       (.36)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $28.82      $25.28      $20.13      $16.57      $14.02
================================================================================

TOTAL RETURN*             16.62%      28.86%      24.23%      21.26%      22.28%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $6,106      $4,479      $2,432      $1,595      $1,017
 Ratio of Total
  Expenses to Average
  Net Assets              0.29%       0.29%       0.31%       0.35%       0.35%
 Ratio of Net
  Investment Income to
  Average Net Assets      1.99%       1.97%       2.19%       2.45%       2.66%
 Turnover Rate               7%          7%          3%          4%          2%
================================================================================
*Total return figures do not reflect the transaction fee on purchases imposed
 prior to 4/1/2000.


- --------------------------------------------------------------------------------
                                      VANGUARD PACIFIC STOCK INDEX FUND
                                              INVESTOR SHARES
                                           YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $ 7.84       $7.72      $10.51      $11.50      $11.31
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .08        .085         .09         .10         .10
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    4.39        .100       (2.79)      (1.00)        .21
                        --------------------------------------------------------
   Total from Investment
    Operations             4.47        .185       (2.70)       (.90)        .31
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.09)      (.065)       (.09)       (.09)       (.12)
 Distributions from
  Realized Capital Gains     --          --          --          --          --
                        --------------------------------------------------------
   Total Distributions     (.09)      (.065)       (.09)       (.09)       (.12)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $12.22       $7.84      $ 7.72      $10.51      $11.50
================================================================================

TOTAL RETURN*            57.05%       2.41%     -25.67%      -7.82%       2.75%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $2,526      $1,033        $827        $978        $831
 Ratio of Total
  Expenses to Average
  Net Assets              0.37%       0.40%       0.35%       0.35%       0.35%
 Ratio of Net
  Investment Income to
  Average Net Assets      0.95%       1.17%       1.03%       0.89%       0.97%
 Turnover Rate               6%          4%          8%          9%          1%
================================================================================
*Total return figures do not reflect the transaction fee on purchases imposed
 prior to 4/1/2000.

<PAGE>

27

- --------------------------------------------------------------------------------
                                  VANGUARD EMERGING MARKETS STOCK INDEX FUND
                                               INVESTOR SHARES
                                           YEAR ENDED DECEMBER 31,
                        --------------------------------------------------------
                           1999        1998        1997        1996        1995
- --------------------------------------------------------------------------------
NET ASSET VALUE,
 BEGINNING OF YEAR       $ 7.91       $9.98      $12.28      $10.75      $10.87
- --------------------------------------------------------------------------------
INVESTMENT OPERATIONS
 Net Investment Income      .24         .27         .24         .18         .15
 Net Realized and
  Unrealized Gain
  (Loss) on Investments    4.62       (2.08)      (2.31)       1.52        (.09)
                        --------------------------------------------------------
   Total from Investment
    Operations             4.86       (1.81)      (2.07)       1.70         .06
                        --------------------------------------------------------
DISTRIBUTIONS
 Dividends from Net
  Investment Income        (.27)       (.26)       (.23)       (.17)       (.18)
 Distributions from
  Realized Capital Gains     --          --          --          --          --
                        --------------------------------------------------------
   Total Distributions     (.27)       (.26)       (.23)       (.17)       (.18)
- --------------------------------------------------------------------------------
NET ASSET VALUE, END
 OF YEAR                 $21.50       $7.91      $ 9.98      $12.28      $10.75
================================================================================

TOTAL RETURN*            61.57%     -18.12%     -16.82%      15.83%       0.56%
================================================================================

RATIOS/SUPPLEMENTAL DATA
 Net Assets, End of
  Year (Millions)        $1,138        $577        $660        $637        $234
 Ratio of Total
  Expenses to Average
  Net Assets              0.58%       0.61%       0.57%       0.60%       0.60%
 Ratio of Net
  Investment Income to
  Average Net Assets      2.55%       2.99%       1.96%       1.69%       2.00%
 Turnover Rate              22%         22%         19%          1%          3%
================================================================================
*Total return figures do not reflect the transaction fee on purchases (0.5%
 beginning 4/1/2000, 1.0% from 11/3/1997 to 3/31/2000, 1.5% from 1/1/1997 to
 11/2/1997, 2.0% in 1995 through 1996), or the transaction fee on redemptions
 (0.5% beginning 4/1/2000, 1.0% through 3/31/2000).


The Funds are not  sponsored,  sold,  promoted,  or endorsed  by Morgan  Stanley
Capital International.  Standard & Poor's(R)," "S&P(R)," "S&P 500(R)," "Standard
& Poor's 500," and "500," are trademarks of The McGraw-Hill Companies, Inc., and
have been licensed for use by The Vanguard Group.

<PAGE>

28

- --------------------------------------------------------------------------------
INVESTING WITH VANGUARD

Are you looking for the most  convenient  way to open or add money to a Vanguard
account?  Obtain instant access to fund information?  Establish an account for a
minor child or for your retirement savings?
     Vanguard  can help.  Our goal is to make it easy and pleasant for you to do
business with us.
     The following  sections of the prospectus briefly explain the many services
we offer.  Booklets providing detailed information are available on the services
marked with a [BOOK ICON]. Please call us to request copies.
- --------------------------------------------------------------------------------

SERVICES AND ACCOUNT FEATURES

Vanguard  offers many services that make it convenient to buy, sell, or exchange
shares, or to obtain fund or account information.
- --------------------------------------------------------------------------------
TELEPHONE REDEMPTIONS (SALES AND EXCHANGES)
Automatically  set up for this  Fund  unless  you  notify  us  otherwise.
Note: Limitations do apply; see page 32.
- --------------------------------------------------------------------------------
VANGUARD(R) AUTOMATIC EXCHANGE SERVICE [BOOK ICON]
Automatic  method for  moving a fixed  amount of money  from one  Vanguard  fund
account to another.
- --------------------------------------------------------------------------------
VANGUARD TELE-ACCOUNT(R) 1-800-662-6273 (ON-BOARD) [BOOK ICON]
Toll-free  24-hour access to Vanguard fund and account  information--as  well as
some  transactions--by  using any touch-tone phone.  Tele-Account provides total
return,  share price, price change, and yield quotations for all Vanguard funds;
gives your account balances and history (e.g., last transaction, latest dividend
distribution);  and  allows  you to sell or  exchange  shares  to and from  most
Vanguard funds.
- --------------------------------------------------------------------------------
ACCESS VANGUARD(TM) www.vanguard.com [BOOK ICON]
You can use your  personal  computer to perform  certain  transactions  for most
Vanguard  funds by accessing our website.  To establish  this service,  you must
register  through our website.  We will then mail you an account access password
that  allows  you  to  process  the  following   financial  and   administrative
transactions online:
- -    Open a new account.*
- -    Buy, sell, or exchange shares of most funds.
- -    Change your name/address.
- -    Add/change fund options (including dividend options, Vanguard Fund Express,
     bank instructions,  checkwriting, and Vanguard Automatic Exchange Service).
     (Some  restrictions may apply.) Please call our Client Services  Department
     for assistance.

*Only current Vanguard shareholders can open a new account online, by exchanging
 shares from other existing Vanguard accounts.
- --------------------------------------------------------------------------------
SERVICES FOR CLIENTS OF VANGUARD'S INSTITUTIONAL DIVISION: 1-888-809-8102
Vanguard's  Institutional  Division offers a variety of specialized services for
large  institutional   investors,   including  the  ability  to  effect  account
transactions through private electronic networks and third-party recordkeepers.
- --------------------------------------------------------------------------------

<PAGE>

29

TYPES OF ACCOUNTS

Individuals and institutions can establish a variety of accounts with Vanguard.
- --------------------------------------------------------------------------------
FOR ONE OR MORE PEOPLE
Open an account in the name of one (individual) or more (joint tenants) people.
- --------------------------------------------------------------------------------
FOR HOLDING PERSONAL TRUST ASSETS [BOOK ICON]
Invest assets held in an existing personal trust.
- --------------------------------------------------------------------------------
FOR AN ORGANIZATION [BOOK ICON]
Open an account as a corporation,  partnership,  endowment, foundation, or other
entity.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
A NOTE ON INVESTING WITH VANGUARD THROUGH OTHER FIRMS
You may purchase or sell Fund shares through a financial  intermediary such as a
bank,  broker,  or investment  adviser.  If you invest with Vanguard  through an
intermediary,  please read that firm's program  materials  carefully to learn of
any  special  rules  that may apply.  For  example,  special  terms may apply to
additional service features, fees, or other policies.  Consult your intermediary
to determine when your order will be priced.
- --------------------------------------------------------------------------------

BUYING SHARES

You buy your shares at a Fund's  next-determined  net asset value after Vanguard
receives your request.  As long as your request is received  before the close of
regular trading on the New York Stock Exchange,  generally 4 p.m.  Eastern time,
you will buy your  shares at that day's net asset  value.  You may  convert  the
Investor  Shares of European,  Pacific,  and Emerging  Markets Stock Index Funds
into  Institutional  Shares of the same Fund  provided that you meet the minimum
initial investment requirements for such Shares.
- --------------------------------------------------------------------------------
MINIMUM INVESTMENT TO . . .
open a new account
$10 million

add to an existing account
$100 by mail or exchange; $1,000 by wire.
- --------------------------------------------------------------------------------
A NOTE ON PURCHASE FEES
Emerging  Markets  Stock  Index  Fund  deducts  a 0.5% fee  from  all  purchases
(including  exchanges  from  other  Vanguard  funds),  but not  from  reinvested
dividends or capital gains.
- --------------------------------------------------------------------------------
BY WIRE TO OPEN A NEW ACCOUNT OR ADD TO AN EXISTING ACCOUNT [WIRE ICON]
Call your assigned Service Associate to arrange your wire transaction.

Wire to:
FRB ABA 021001088
HSBC Bank USA

For credit to:
Account: 000112046
Vanguard Incoming Wire Account

<PAGE>

30

In favor of:
European Stock Index Fund Institutional Shares-235
Pacific Stock Index Fund Institutional Shares-237
Emerging Markets Stock Index Fund Institutional Shares-239
Institutional Developed Markets Index Fund-234
In favor of:
[Account number, or temporary number for a new account]
[Registered account owner(s)]
[Registered address]
- --------------------------------------------------------------------------------
BY MAIL TO . . . [ENVELOPE ICON]
open a new account
Complete and sign the account registration form and enclose your check.

add to an existing account
Mail your check with an  Invest-By-Mail  form  detached  from your  confirmation
statement to the address listed on the form. Please do not alter  Invest-By-Mail
forms, since they are fund- and account-specific.

Make your check payable to: The Vanguard Group-(insert  appropriate Fund number;
see below)

European Stock Index Fund Institutional Shares-235
Pacific Stock Index Fund Institutional Shares-237
Emerging Markets Stock Index Fund Institutional Shares-239
Institutional Developed Markets Index Fund-234

All  purchases  must be made in U.S.  dollars,  and checks must be drawn on U.S.
banks.

For clients of Vanguard's Institutional Division . . .

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 2900                100 Vanguard Boulevard
Valley Forge, PA 19482-2900  Malvern, PA 19355-2331
- --------------------------------------------------------------------------------
IMPORTANT  NOTE:  To prevent  check fraud,  Vanguard will not accept checks made
payable to third parties.
- --------------------------------------------------------------------------------
BY TELEPHONE TO . . . [TELEPHONE ICON]
open a new account
Call Vanguard  Tele-Account* 24 hours a day--or your assigned Service  Associate
during business  hours--to  exchange from another Vanguard fund account with the
same registration (name, address,  taxpayer  identification  number, and account
type).

add to an existing account
Call Vanguard  Tele-Account* 24 hours a day--or your assigned Service  Associate
during business  hours--to  exchange from another Vanguard fund account with the
same registration (name, address,  taxpayer  identification  number, and account
type). (Note that some restrictions apply to index fund accounts.)


Vanguard Tele-Account
1-800-662-6273

*You must obtain a Personal  Identification Number (PIN) through Tele-Account at
 least seven days before you request your first exchange.

<PAGE>

31

- --------------------------------------------------------------------------------
IMPORTANT  NOTE:  Once  you  have  initiated  a  telephone   transaction  and  a
confirmation  number has been assigned,  the transaction  cannot be revoked.  We
reserve the right to refuse any purchase request.
- --------------------------------------------------------------------------------
You can redeem  (that is, sell or  exchange)  shares  purchased  by check at any
time.  However,   while  your  redemption  request  will  be  processed  at  the
next-determined  net asset value after it is received,  your redemption proceeds
will not be available  until payment for your  purchase is collected,  which may
take up to ten calendar days.
- --------------------------------------------------------------------------------
A NOTE ON LARGE PURCHASES
It is important that you call Vanguard  before you invest a large dollar amount.
It is our responsibility to consider the interests of all Fund shareholders, and
so we  reserve  the right to refuse any  purchase  that may  disrupt  the Fund's
operation or performance.
- --------------------------------------------------------------------------------

REDEEMING SHARES

This section describes how you can redeem--that is, sell or exchange--the Fund's
shares.

When Selling Shares:
- -    Vanguard sends the redemption proceeds to you or a designated third party.*
- -    You can sell all or part of your Fund shares at any time.

*May require a signature guarantee; see footnote on page 33.

When Exchanging Shares:
- -    The redemption proceeds are used to purchase shares of a different Vanguard
     fund.
- -    You must meet the receiving fund's minimum investment requirements.
- -    Vanguard reserves the right to revise or terminate the exchange  privilege,
     limit the amount of an exchange, or reject an exchange at any time, without
     notice.
- -    In  order  to  exchange  into  an  account  with a  different  registration
     (including a different name, address, or taxpayer  identification  number),
     you must include the guaranteed  signature of all current account owners on
     your written instructions.

     In both cases, your transaction will be based on the Fund's next-determined
share price,  subject to any special rules described in this "Redeeming  Shares"
section of the prospectus.
- --------------------------------------------------------------------------------
A NOTE ON REDEMPTION FEES
Emerging Markets Stock Index Fund Institutional Shares imposes a 0.5% redemption
fee on all share  redemptions.  Currently,  redemption fees do not apply to Fund
shares  held  through  Vanguard's  separate  recordkeeping  system for  employee
benefit plan accounts,  due to certain economies associated with these accounts.
However,  the Fund reserves the right to impose redemption fees on its shares at
any time if warranted by the Fund's future costs of processing  redemptions from
these accounts.
- --------------------------------------------------------------------------------
NOTE:  Once a redemption  is initiated  and a  confirmation  number  given,  the
transaction CANNOT be canceled.
- --------------------------------------------------------------------------------

<PAGE>

32

HOW TO REQUEST A REDEMPTION
You can request a  redemption  from your Fund  account in any one of three ways:
online, by telephone, or by mail.
     The  Vanguard  funds  whose  shares you cannot  exchange by  telephone  are
VANGUARD  U.S.  STOCK  INDEX  FUNDS,  VANGUARD  BALANCED  INDEX  FUND,  VANGUARD
INTERNATIONAL  STOCK INDEX FUNDS,  VANGUARD REIT INDEX FUND, and VANGUARD GROWTH
AND INCOME FUND. These funds do, however, permit telephone exchanges within IRAs
and some other retirement accounts.
- --------------------------------------------------------------------------------
TELEPHONE REQUESTS [TELEPHONE ICON]
Call Vanguard  Tele-Account 24 hours a day--or your assigned  Service  Associate
during business hours--to sell shares.
- --------------------------------------------------------------------------------
SPECIAL  INFORMATION:  We will automatically  establish the telephone redemption
option for your  account,  unless you instruct us  otherwise  in writing.  While
telephone  redemption is easy and convenient,  this account  feature  involves a
risk of loss from  unauthorized or fraudulent  transactions.  Vanguard will take
reasonable  precautions  to protect your  account from fraud.  You should do the
same by keeping your account information  private and immediately  reviewing any
account  statements  that  we  send  to  you.  Make  sure  to  contact  Vanguard
immediately about any transaction you believe to be unauthorized.
- --------------------------------------------------------------------------------
We reserve the right to refuse a telephone redemption if the caller is unable to
provide:
- -    The ten-digit account number.
- -    The name and address exactly as registered on the account.
- -    The primary Social Security or employer identification number as registered
     on the account.
- -    The Personal  Identification  Number (PIN),  if applicable  (for  instance,
     Tele-Account).

     Please note that Vanguard will not be  responsible  for any account  losses
due to telephone  fraud, so long as we have taken reasonable steps to verify the
caller's identity.  If you wish to remove the telephone  redemption feature from
your account, please notify us in writing.
- --------------------------------------------------------------------------------
A NOTE ON UNUSUAL CIRCUMSTANCES
Vanguard  reserves the right to revise or  terminate  the  telephone  redemption
privilege at any time,  without notice.  In addition,  Vanguard can stop selling
shares or postpone  payment at times when the New York Stock  Exchange is closed
or under any emergency  circumstances  as determined by the U.S.  Securities and
Exchange Commission.  If you experience difficulty making a telephone redemption
during  periods  of  drastic  economic  or market  change,  you can send us your
request  by  regular or express  mail.  Follow  the  instructions  on selling or
exchanging shares by mail in this section.
- --------------------------------------------------------------------------------
MAIL REQUESTS [ENVELOPE ICON]
Send a letter of instruction signed by all registered  account holders.  Include
the fund name and  account  number and (if you are  selling) a dollar  amount or
number  of shares  OR (if you are  exchanging)  the name of the fund you want to
exchange  into and a dollar  amount or number of  shares.  To  exchange  into an
account  with a different  registration  (including a different  name,  address,
taxpayer identification number, or account type), you must provide Vanguard with
written  instructions  that  include the  guaranteed  signatures  of all current
owners of the fund from which you wish to redeem.

<PAGE>

33

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 2900                100 Vanguard Boulevard
Valley Forge, PA 19482-2900  Malvern, PA 19355-2331
- --------------------------------------------------------------------------------
A NOTE ON LARGE REDEMPTIONS
It is important that you call Vanguard  before you redeem a large dollar amount.
It is our responsibility to consider the interests of all fund shareholders, and
so we reserve the right to delay  delivery of your  redemption  proceeds--up  to
seven days--if the amount may disrupt the Fund's operation or performance.
     If you redeem more than  $250,000  worth of fund  shares  within any 90-day
period,  the  fund  reserves  the  right  to pay  part or all of the  redemption
proceeds above $250,000  in-kind,  i.e., in securities,  rather than in cash. If
payment is made in-kind,  you may incur  brokerage  commissions  if you elect to
sell the securities for cash.
- --------------------------------------------------------------------------------

OPTIONS FOR REDEMPTION PROCEEDS

You may receive your redemption proceeds in one of three ways: check or exchange
to another Vanguard fund.
- --------------------------------------------------------------------------------
CHECK REDEMPTIONS
Normally,  Vanguard  will  mail  your  check  within  two  business  days  of  a
redemption.
- --------------------------------------------------------------------------------
EXCHANGE REDEMPTIONS
As described  above, an exchange  involves using the proceeds of your redemption
to purchase shares of another Vanguard fund.
- --------------------------------------------------------------------------------

FOR OUR MUTUAL PROTECTION
For your best interests and ours, Vanguard applies these additional requirements
to redemptions:

REQUEST IN "GOOD ORDER"
All redemption requests must be received by Vanguard in "good order." This means
that your request must include:
- -    The Fund name and account number.
- -    The amount of the transaction (in dollars or shares).
- -    Signatures  of all owners  exactly as  registered  on the account (for mail
     requests).
- -    Signature guarantees (if required).*
- -    Any supporting legal documentation that may be required.
- -    Any outstanding certificates representing shares to be redeemed.

*For instance, a signature guarantee must  be provided by all registered account
 shareholders when redemption  proceeds are  to be sent to a different person or
 address. A signature guarantee may be obtained from most commercial and savings
 banks, credit  unions,  trust  companies,  or  member  firms  of  a  U.S. stock
 exchange.

TRANSACTIONS ARE PROCESSED AT THE NEXT-DETERMINED SHARE PRICE AFTER VANGUARD HAS
RECEIVED ALL REQUIRED INFORMATION.
- --------------------------------------------------------------------------------
LIMITS ON ACCOUNT ACTIVITY
Because excessive account  transactions can disrupt the management of a Fund and
increase the Fund's costs for all shareholders, Vanguard limits account activity
as follows:
- -    You may make no more  than TWO  SUBSTANTIVE  "ROUND  TRIPS"  THROUGH A FUND
     during any 12-month period.
- -    Your round trips through a Fund must be at least 30 days apart.
- -    A Fund may refuse a share purchase at any time, for any reason.

<PAGE>

34

- -    Vanguard may revoke an investor's telephone exchange privilege at any time,
     for any reason.

A "round trip" is a redemption  from the Fund  followed by a purchase  back into
the  Fund.  Also  a  "round  trip"  covers  transactions   accomplished  by  any
combination  of methods,  including  transactions  conducted by check,  wire, or
exchange to/from another Vanguard fund. "Substantive" means a dollar amount that
Vanguard  determines,  in  its  sole  discretion,  could  adversely  affect  the
management of a Fund.
- --------------------------------------------------------------------------------
ALL TRADES ARE FINAL
Vanguard  will not cancel any  transaction  request  (including  any purchase or
redemption)  that we believe to be authentic once the request has been initiated
and a confirmation number assigned.
- --------------------------------------------------------------------------------
UNCASHED CHECKS
Please cash your distribution or redemption  checks promptly.  Vanguard will not
pay interest on uncashed checks.
- --------------------------------------------------------------------------------

TRANSFERRING REGISTRATION

You can  transfer  the  registration  of your Fund  shares to  another  owner by
completing a transfer form and sending it to Vanguard.

First-class mail to:         Express or Registered mail to:
The Vanguard Group           The Vanguard Group
P.O. Box 2900                100 Vanguard Boulevard
Valley Forge, PA 19482-2900  Malvern, PA 19355-2331
- --------------------------------------------------------------------------------

FUND AND ACCOUNT UPDATES

STATEMENTS AND REPORTS
We will send you account and tax  statements to help you keep track of your Fund
account  throughout  the year as well as when you are preparing  your income tax
returns.
     In addition,  you will  receive  financial  reports about your Fund twice a
year.  These   comprehensive   reports  include  an  assessment  of  the  Fund's
performance  (and a comparison  to its industry  benchmark),  an overview of the
financial  markets,  a  report  from  the  adviser,  and  the  Fund's  financial
statements which include a listing of the Fund's holdings.
     To keep  each  Fund's  costs as low as  possible  (so  that  you and  other
shareholders can keep more of the Fund's investment earnings), Vanguard attempts
to  eliminate  duplicate  mailings  to the same  address.  When two or more Fund
shareholders  have the same last name and address,  we send just one Fund report
to that address--instead of mailing separate reports to each shareholder. If you
want  us  to  send  separate  reports,  notify  our  Institutional  Division  at
1-888-809-8102.
- --------------------------------------------------------------------------------
CONFIRMATION  STATEMENT  Sent  each  time you buy,  sell,  or  exchange  shares;
confirms    the   trade   date   and   the    amount   of   your    transaction.
- --------------------------------------------------------------------------------

<PAGE>

35

- --------------------------------------------------------------------------------
PORTFOLIO SUMMARY [BOOK ICON]
Mailed  quarterly for most  accounts;  shows the market value of your account at
the close of the statement period, as well as distributions,  purchases,  sales,
and exchanges for the current calendar year.
- --------------------------------------------------------------------------------
FUND FINANCIAL REPORTS
Mailed in February and August for these Funds.
- --------------------------------------------------------------------------------
TAX STATEMENTS
Generally  mailed in January;  report previous year's dividend and capital gains
distributions, and proceeds from the sale of shares.
- --------------------------------------------------------------------------------

MANDATORY CONVERSION TO INVESTOR SHARES

Vanguard European,  Pacific, and Emerging Markets Stock Index Funds each reserve
the right to convert an investor's  Institutional Shares into Investor Shares of
the same Fund if the  investor's  account  balance  falls below $10 million.  In
addition, Vanguard Institutional Developed Markets Index Fund reserves the right
to redeem an investor's shares if the investor's account balance falls below $10
million. Any such conversion or redemption will be preceded by written notice to
the investor. No transaction fee will be imposed on share-class conversions.

<PAGE>

                     (THIS PAGE INTENTIONALLY LEFT BLANK.)

<PAGE>

GLOSSARY OF INVESTMENT TERMS

ACTIVE MANAGEMENT
An investment approach that seeks to exceed the average returns of the financial
markets.  Active  managers  rely on research,  market  forecasts,  and their own
judgment and experience in selecting securities to buy and sell.

CAPITAL GAINS DISTRIBUTION
Payment to mutual fund  shareholders of gains realized on securities that a fund
has sold at a profit, minus any realized losses.

CASH RESERVES
Cash deposits,  short-term  bank deposits,  and money market  instruments  which
include U.S.  Treasury bills,  bank  certificates  of deposit (CDs),  repurchase
agreements, commercial paper, and banker's acceptances.

COMMON STOCK
A security  representing  ownership  rights in a  corporation.  A stockholder is
entitled  to share in the  company's  profits,  some of which may be paid out as
dividends.

COUNTRY RISK
The chance that domestic events--such as political upheaval, financial troubles,
or a natural disaster--will weaken a country's securities markets.

CURRENCY RISK
The  chance  that a  foreign  investment  will  decrease  in  value  because  of
unfavorable changes in currency exchange rates.

DIVIDEND INCOME
Payment to  shareholders  of income from  interest or  dividends  generated by a
fund's investments.

EXPENSE RATIO
The  percentage  of a fund's  average net assets used to pay its  expenses.  The
expense ratio  includes  management  fees,  administrative  fees,  and any 12b-1
distribution fees.

INDEX
An unmanaged group of securities whose overall performance is used as a standard
to measure investment performance.

INTERNATIONAL STOCK FUND
A mutual fund that invests in the stocks of companies located outside the United
States.

INVESTMENT ADVISER
An  organization  that  makes  the  day-to-day   decisions  regarding  a  fund's
investments.

MUTUAL FUND
An  investment  company  that pools the money of many people and invests it in a
variety of securities in an effort to achieve a specific objective over time.

NET ASSET VALUE (NAV)
The market value of a mutual fund's total assets, minus liabilities,  divided by
the  number of shares  outstanding.  The value of a single  share is called  its
share value or share price.

PASSIVE MANAGEMENT
A low-cost  investment strategy in which a mutual fund attempts to match--rather
than  outperform--a  particular  stock  or bond  market  index.  Also  known  as
indexing.

PRINCIPAL
The amount of money you put into an investment.

TOTAL RETURN
A percentage change,  over a specified time period, in a mutual fund's net asset
value,  with the ending net asset value adjusted to account for the reinvestment
of all distributions of dividends and capital gains.

VOLATILITY
The  fluctuations  in value of a mutual  fund or other  security.  The greater a
fund's volatility, the wider the fluctuations between its high and low prices.

YIELD
Income  (interest  or  dividends)  earned  by  an  investment,  expressed  as  a
percentage of the investment's price.

<PAGE>


                                                    [LOGO]
                                                    [THE VANGUARD GROUP(R) LOGO]

                                                    Institutional Division
                                                    Post Office Box 2600
                                                    Valley Forge, PA 19482-2600

FOR MORE INFORMATION
If you'd like more information about
Vanguard International Stock Index
Funds, the following documents are
available free upon request:

ANNUAL/SEMIANNUAL REPORTS
TO SHAREHOLDERS
Additional information about the
Funds' investments is available in
the Funds' annual and semiannual
reports to shareholders.

STATEMENT OF ADDITIONAL
INFORMATION (SAI)
The SAI provides more detailed
information about the Funds (there
is a separate SAI for Vanguard
Institutional Developed Markets
Index Fund, which is legally a part of
Vanguard STAR Funds).

The current annual and semiannual
reports and each SAI are
incorporated by reference into
(and are thus legally a part of)
this prospectus.

To receive a free copy of the latest
annual or semiannual report or the
SAI, or to request additional
information about the Funds or other
Vanguard funds, please contact us
as follows:

If you are an Individual Investor:
THE VANGUARD GROUP
INVESTOR INFORMATION
DEPARTMENT
P.O. BOX 2900
VALLEY FORGE, PA 19482-2900

TELEPHONE:
1-800-662-7447 (SHIP)

TEXT TELEPHONE:
1-800-952-3335

If you are a client of Vanguard's
Institutional Division:
THE VANGUARD GROUP
INSTITUTIONAL INVESTOR
INFORMATION DEPARTMENT
P.O. BOX 2900
VALLEY FORGE, PA 19482-2900

TELEPHONE:
1-888-809-8102

WORLD WIDE WEB:
WWW.VANGUARD.COM

If you are a current Fund shareholder
and would like information about
your account, account transactions,
and/or account statements,
please call:

CLIENT SERVICES DEPARTMENT
TELEPHONE:
1-800-662-2739 (CREW)

TEXT TELEPHONE:
1-800-749-7273

INFORMATION PROVIDED BY THE
SECURITIES AND EXCHANGE
COMMISSION (SEC)
You can review and copy
information about the Funds
(including the SAI) at the SEC's
Public Reference Room in
Washington, DC. To find out more
about this public service, call the
SEC at 1-202-942-8090. Reports and
other information about the Funds
are also available on the SEC's
website (www.sec.gov), or you can
receive copies of this information,
for a fee, by electronic request at
the following e-mail address:
[email protected], or by writing
the Public Reference Section,
Securities and Exchange
Commission, Washington, DC
20549-0102.

Funds' Investment Company Act
file number: 811-5972 (811-3919
for Institutional Developed Markets
Index Fund)

(C) 2000 The Vanguard Group, Inc.
All rights reserved.
Vanguard Marketing Corporation,
Distributor.

I235N-04/28/2000


<PAGE>

                                     PART B

                  VANGUARD(R) INTERNATIONAL EQUITY INDEX FUNDS
                                   (THE TRUST)

                       STATEMENT OF ADDITIONAL INFORMATION
                                 APRIL 28, 2000

     This Statement is not a prospectus,  but should be read in conjunction with
the Trust's current  Prospectuses (dated April 28, 2000). To obtain a Prospectus
or the most recent  Annual  Report to  Shareholders,  which  contains the Funds'
Financial Statements as hereby incorporated by reference, please call:

                         INVESTOR INFORMATION DEPARTMENT
                              1-800-662-7447(SHIP)

                                TABLE OF CONTENTS

                                                                            PAGE
                                                                            ----
DESCRIPTION OF THE TRUST.....................................................B-1
INVESTMENT POLICIES..........................................................B-3
FUNDAMENTAL INVESTMENT LIMITATIONS...........................................B-8
SHARE PRICE..................................................................B-9
PURCHASE OF SHARES..........................................................B-10
REDEMPTION OF SHARES........................................................B-10
MANAGEMENT OF THE FUNDS.....................................................B-10
PORTFOLIO TRANSACTIONS......................................................B-14
TOTAL RETURN................................................................B-14
COMPARATIVE INDEXES.........................................................B-16
FINANCIAL STATEMENTS........................................................B-18

                            DESCRIPTION OF THE TRUST

ORGANIZATION

     The  Trust  was  organized  as a  Maryland  corporation  in  1989,  and was
reorganized  as  a  Delaware   business  trust  in  July,  1998.  Prior  to  its
reorganization  as a Delaware  business  trust,  the Trust was known as Vanguard
International  Equity Index Fund,  Inc. The Trust is registered  with the United
States Securities and Exchange  Commission (the Commission) under the Investment
Company  Act of 1940  (the  1940  Act) as an  open-end,  diversified  management
investment company. It currently offers the following diversified Funds:

                            European Stock Index Fund
                             Pacific Stock Index Fund
                         Emerging Markets Stock Index Fund
                 (individually, a Fund; collectively, the Funds)

     Each of the Funds  offers  two  classes  of  shares,  Investor  Shares  and
Institutional Shares. Institutional Shares of a Fund are available only to those
investing at least $10 million in the Fund.

     The Trust has the ability to offer  additional  funds or classes of shares.
There is no limit on the number of full and fractional  shares that each fund or
share class may issue.

SERVICE PROVIDERS

     CUSTODIAN.  Brown  Brothers  Harriman  &  Co.,  40  Water  Street,  Boston,
Massachusetts   02109,  serves  as  the  Funds'  custodian.   The  custodian  is
responsible  for  maintaining  each  Fund's  assets and  keeping  all  necessary
accounts and records of Fund assets.

                                      B-1
<PAGE>

     INDEPENDENT ACCOUNTANTS.  PricewaterhouseCoopers LLP, 30 South 17th Street,
Philadelphia,  Pennsylvania 19103, serves as the Funds' independent accountants.
The  accountants  audit  financial  statements  for the Funds and provide  other
related services.

     TRANSFER  AND   DIVIDEND-PAYING   AGENT.  The  Funds'  transfer  agent  and
dividend-paying  agent is The Vanguard  Group,  Inc.,  100  Vanguard  Boulevard,
Malvern, Pennsylvania 19355.

CHARACTERISTICS OF THE FUNDS' SHARES

     RESTRICTIONS  ON HOLDING OR DISPOSING OF SHARES.  There are no restrictions
on the right of shareholders  to retain or dispose of each Fund's shares,  other
than the possible  future  termination of a Fund. The Funds may be terminated by
reorganization  into another mutual fund or by liquidation  and  distribution of
the  assets  of the  affected  Fund.  Unless  terminated  by  reorganization  or
liquidation, the Funds will continue indefinitely.

     SHAREHOLDER  LIABILITY.  The Trust is organized  under  Delaware law, which
provides  that  shareholders  of a  business  trust  are  entitled  to the  same
limitations of personal  liability as  shareholders  of a corporation  organized
under Delaware law. Effectively,  this means that a fund shareholder will not be
personally liable for payment of the fund's debts except by reason of his or her
own conduct or acts. In addition,  a shareholder could incur a financial loss on
account of a fund  obligation  only if the fund itself had no  remaining  assets
with which to meet such  obligation.  We believe that the  possibility of such a
situation arising is extremely remote.

     DIVIDEND  RIGHTS.  The  shareholders  of a Fund are entitled to receive any
dividends or other distributions declared for such Fund. No shares have priority
or  preference  over  any  other  shares  of  the  same  Fund  with  respect  to
distributions. Distributions will be made from the assets of a Fund, and will be
paid ratably to all  shareholders of the Fund (or class) according to the number
of shares of such Fund (or class) held by  shareholders  on the record date. The
amount of income  dividends per share may vary between separate share classes of
the same Fund based upon  differences  in the way that  expenses  are  allocated
between share classes pursuant to a multiple class plan.

     VOTING  RIGHTS.  Shareholders  are  entitled  to vote on a matter if: (i) a
shareholder  vote is required  under the 1940 Act;  (ii) the matter  concerns an
amendment of the Declaration of Trust that would adversely  affect to a material
degree the rights and  preferences  of the shares of any class or Fund; or (iii)
the Trustees determine that it is necessary or desirable to obtain a shareholder
vote.  The 1940 Act requires a  shareholder  vote under  various  circumstances,
including  to elect or remove  Trustees  upon  written  request of  shareholders
representing  10% or more of a fund's net assets,  and to change any fundamental
policy of the fund.  Fund  shareholders  receive one vote for each dollar of net
asset value owned on the record date, and a fractional  vote for each fractional
dollar of net asset value owned on the record date. However,  only the shares of
a Fund  affected by a  particular  matter are  entitled to vote on that  matter.
Voting rights are non-cumulative and cannot be modified without a majority vote.

     LIQUIDATION RIGHTS. In the event of Fund liquidation,  shareholders will be
entitled to receive a pro rata share of the applicable Fund's net assets.

     PREEMPTIVE RIGHTS. There are no preemptive rights associated with shares of
each Fund.

     CONVERSION  RIGHTS.  Shareholders  of a Fund may convert  their shares into
another  clss of  shares  of the same  Fund  upon the  satisfaction  of any then
applicable eligibility requirements.

     REDEMPTION  PROVISIONS.  The Funds' redemption  provisions are described in
their  current  prospectuses  and  elsewhere  in this  Statement  of  Additional
Information.

     SINKING FUND PROVISIONS. The Funds have no sinking fund provisions.

     CALLS OR ASSESSMENTS.  Each Fund's shares,  when issued, are fully paid and
non-assessable.

TAX STATUS OF THE FUNDS

     Each Fund  intends to qualify as a  "regulated  investment  company"  under
Subchapter M of the Internal  Revenue Code. This special tax status means that a
Fund will not be liable for federal tax on income and capital gains  distributed
to shareholders. In order to preserve its tax status, each Fund must comply with
certain requirements.  If a Fund fails to meet these requirements in any taxable
year, it will be subject to tax on its taxable  income at corporate  rates,  and
all distributions from earnings and profits, including any distributions of

                                      B-2
<PAGE>

net  tax-exempt  income  and net  long-term  capital  gains,  will be taxable to
shareholders  as ordinary  income.  In  addition,  the Fund could be required to
recognize  unrealized  gains,  pay  substantial  taxes  and  interest,  and make
substantial  distributions  before  regaining  its  tax  status  as a  regulated
investment company.

                              INVESTMENT POLICIES

     The following policies  supplement the investment policies set forth in the
Funds' Prospectuses.

     FOREIGN  INVESTMENTS.  Each Fund  invests  virtually  all of its  assets in
foreign securities under normal  circumstances.  Investors should recognize that
investing  in  securities  of  foreign   companies   involves   certain  special
considerations  which  are  not  typically  associated  with  investing  in U.S.
companies.

     CURRENCY RISK. The stocks of foreign  companies are frequently  denominated
in foreign currencies, and the Funds may temporarily hold uninvested reserves in
bank  deposits  in  foreign  currencies.  As such,  the Funds  will be  affected
favorably or unfavorably  by changes in currency  rates and in exchange  control
regulations,  and may incur costs in connection with conversions between various
currencies.  The  investment  policies  of the Funds  permit  them to enter into
forward  foreign  currency  exchange  contracts  in order to hedge  holdings and
commitments  against  changes  in the  level  of  future  currency  rates.  Such
contracts  involve an  obligation  to purchase or sell a specific  currency at a
future date at a price set at the time of the contract.

     COUNTRY  RISK. As foreign  companies  are not generally  subject to uniform
accounting,  auditing and financial reporting standards and practices comparable
to those applicable to domestic companies,  there may be less publicly available
information  about certain  foreign  companies  than about  domestic  companies.
Securities of some foreign companies are generally less liquid and more volatile
than  securities  of  comparable  domestic  companies.  There is generally  less
government  supervision  and regulation of stock  exchanges, brokers, and listed
companies  than in the  U.S.  In  addition,  with  respect  to  certain  foreign
countries,  there is the possibility of expropriation or confiscatory  taxation,
political or social instability,  or diplomatic  developments which could affect
U.S. investments in those countries.

     Although the Funds will endeavor to achieve most favorable  execution costs
in  their  portfolio  transactions,  fixed  commissions  on many  foreign  stock
exchanges are generally higher than negotiated commissions on U.S. exchanges. In
addition,  it is expected  that the expenses for custodian  arrangements  of the
Funds' foreign  securities will be somewhat greater than the expenses for a fund
that invests primarily in domestic securities.

     Certain foreign  governments  levy  withholding  taxes against dividend and
interest  income.  Although  in some  countries  a  portion  of these  taxes are
recoverable,  the non-recovered portion of foreign withholding taxes will reduce
the income  received from the companies  comprising  the Funds.  However,  these
foreign  withholding taxes are not expected to have a significant  impact on the
Funds,  since  each Fund seeks  long-term  capital  appreciation  and any income
should be considered incidental.



     FEDERAL TAX  TREATMENT OF NON-U.S.  TRANSACTIONS.  Special rules govern the
Federal income tax treatment of certain  transactions  denominated in terms of a
currency  other than the U.S.  dollar or determined by reference to the value of
one or more  currencies  other than the U.S.  dollar.  The types of transactions
covered by the special rules include the following:  (i) the  acquisition of, or
becoming the obligor under, a bond or other debt instrument  (including,  to the
extent provided in Treasury regulations,  preferred stock); (ii) the accruing of
certain  trade  receivables  and  payables;  and  (iii)  the  entering  into  or
acquisition  of any  forward  contract,  futures  contract,  option  or  similar
financial instrument if such instrument is not marked to market. The disposition
of a currency other than the U.S. dollar by a taxpayer whose functional currency
is the U.S.  dollar is also  treated as a  transaction  subject  to the  special
currency rules. However,  foreign  currency-related  regulated futures contracts
and nonequity options are generally not subject to the special currency rules if
they are or would be  treated as sold for their fair  market  value at  year-end
under the  marking-to-market  rules applicable to other futures contracts unless
an  election  is made  to have  such  currency  rules  apply.  With  respect  to
transactions  covered by the special  rules,  foreign  currency  gain or loss is
calculated separately from any gain or loss on the underlying transaction and is
normally  taxable as ordinary  income or loss.  A taxpayer may elect to treat as
capital  gain or  loss  foreign  currency  gain or  loss  arising  from  certain
identified  forward contracts,  futures contracts,  and options that are capital
assets in the hands of the  taxpayer  and which are not part of a straddle.  The
Treasury Department issued regulations under which certain  transactions subject
to  the  special  currency  rules  that  are  part  of a  "section  988  hedging
transaction" (as defined in the Internal  Revenue Code of 1986, as amended,  and

                                      B-3
<PAGE>

the Treasury regulations) will be integrated and treated as a single transaction
or otherwise  treated  consistently  for purposes of the Code.  Any gain or loss
attributable to the foreign currency component of a transaction  engaged in by a
Fund which is not subject to the special  currency rules (such as foreign equity
investments other than certain  preferred stock) will be treated as capital gain
or loss  and  will not be  segregated  from  the gain or loss on the  underlying
transaction.  It is  anticipated  that some of the  non-U.S.  dollar-denominated
investments and foreign currency contracts the Funds may make or enter into will
be subject to the special currency rules described above.

     FOREIGN TAX CREDIT. Foreign governments may withhold taxes on dividends and
interest paid with respect to foreign  securities.  Foreign governments may also
impose taxes on other payments or gains with respect to foreign securities.  If,
at the close of its  fiscal  year,  more than 50% of a Fund's  total  assets are
invested in  securities of foreign  issuers,  the Fund may elect to pass through
foreign  taxes paid,  and  thereby  allow  shareholders  to take a tax credit or
deduction on their tax returns.  If  shareholders  meet certain  holding  period
requirements  with  respect  to Fund  shares,  an  offsetting  tax credit may be
available. If shareholders do not meet the holding period requirements, they may
still be entitled to a deduction for certain  foreign  taxes.  In either case, a
shareholder's  tax statement will show more taxable income or capital gains than
were  actually  distributed  by the Fund,  but will also show the  amount of the
available offsetting credit or deduction.

     A  shareholder  that is a  nonresident  alien for U.S.  tax purposes may be
subject to adverse U.S. tax consequences.  For example, dividends and short-term
capital  gains  paid by the Fund  will  generally  be  subject  to U.S.  federal
withholding tax at a rate of 30% (or lower treaty rate if  applicable).  Foreign
investors  are  urged to  consult  their tax  advisers  regarding  the U.S.  tax
treatment of ownership of shares in the Funds.

     REPURCHASE  AGREEMENTS.  Each  Fund,  along  with the other  members of The
Vanguard  Group,  may invest in repurchase  agreements  with  commercial  banks,
brokers, or  dealers  to  generate  income  from its  excess  cash  balances.  A
repurchase  agreement is an agreement under which a Fund acquires a fixed-income
security  (generally  a  security  issued  by the U.S.  Government  or an agency
thereof,  a banker's  acceptance  or a  certificate  of deposit)  from a seller,
subject to resale to the seller at an agreed upon price and date (normally,  the
next   business   day).  A  repurchase   agreement  may  be  considered  a  loan
collateralized by securities.  The resale price reflects an agreed upon interest
rate  effective for the period the instrument is held by a Fund and is unrelated
to the interest rate on the underlying  instrument.  In these transactions,  the
securities  acquired by a Fund (including  accrued interest earned thereon) must
have a total value in excess of the value of the  repurchase  agreement  and are
held by a custodian bank until repurchased.  In addition,  the Board of Trustees
will monitor the Funds'  repurchase  agreement  transactions  generally and will
establish  guidelines  and standards for review of the  creditworthiness  of any
bank, broker, or dealer party to a repurchase agreement with a Fund.

     The use of repurchase  agreements  involves certain risks. For example,  if
the other party to the agreement  defaults on its  obligation to repurchase  the
underlying  security at a time when the value of the security has declined,  the
Fund may incur a loss upon  disposition  of the security.  If the other party to
the agreement  becomes  insolvent and subject to liquidation  or  reorganization
under  the  Bankruptcy  Code or  other  laws,  a court  may  determine  that the
underlying security is collateral for a loan by a Fund not within the control of
the Fund and therefore the Fund may not be able to substantiate  its interest in
the  underlying  security and may be deemed an  unsecured  creditor of the other
party to the agreement. While the Fund's management acknowledges these risks, it
is expected that they will be controlled through careful monitoring procedures.

     ILLIQUID  SECURITIES.  Each Fund may  invest up to 15% of its net assets in
illiquid securities.  Illiquid securities are securities that may not be sold or
disposed of in the ordinary  course of business  within seven  business  days at
approximately the value at which they are being carried on the Fund's books.

     Each Fund may invest in restricted, privately placed securities that, under
the  Commission's  rules,  may be sold only to qualified  institutional  buyers.
Because these securities can be resold only to qualified institutional buyers or
after they have been held for a number of years, they may be considered illiquid
securities--meaning that they could be difficult for the Fund to convert to cash
if needed.

     If a substantial market develops for a restricted  security held by a Fund,
it will be treated as a liquid  security,  in  accordance  with  procedures  and
guidelines approved by the Board of Trustees. This generally includes securities
that are  unregistered  that can be sold to  qualified  institutional  buyers in
accordance  with Rule 144A under the  Securities  Act of 1933.  While the Fund's
investment adviser determines the liquidity of restricted

                                      B-4
<PAGE>

securities  on  a  daily  basis,   the  Board  oversees  and  retains   ultimate
responsibility  for the  adviser's  decisions.  Several  factors  that the Board
considers in monitoring these decisions include the valuation of a security, the
availability  of  qualified   institutional  buyers,  and  the  availability  of
information about the security's issuer.

     LENDING OF  SECURITIES.  Each Fund may lend its  investment  securities  to
qualified institutional  investors (typically brokers,  dealers, banks, or other
financial  institutions)  who need to  borrow  securities  in order to  complete
certain transactions, such as covering short sales, avoiding failures to deliver
securities, or  completing  arbitrage  operations.  By  lending  its  investment
securities,  a Fund attempts to increase its net  investment  income through the
receipt of  interest  on the loan.  Any gain or loss in the market  price of the
securities  loaned that might occur during the term of the loan would be for the
account of the Fund.  The terms and the structure  and the  aggregate  amount of
such  loans  must  be   consistent   with  the  1940  Act,   and  the  Rules  or
interpretations of the Commission thereunder.  These provisions limit the amount
of securities a Fund may lend to 33 1/3% of the Fund's total assets, and require
that (a) the borrower pledge and maintain with the Fund collateral consisting of
cash, an irrevocable  letter of credit or securities issued or guaranteed by the
United States  Government having at all times not less than 100% of the value of
the  securities  loaned,  (b) the borrower add to such  collateral  whenever the
price of the securities  loaned rises (i.e.,  the borrower "marks to the market"
on a daily basis),  (c) the loan be made subject to  termination  by the Fund at
any time,  and (d) the Fund receive  reasonable  interest on the loan (which may
include the Fund's investing any cash collateral in interest bearing  short-term
investments),  any  distribution  on the loaned  securities  and any increase in
their market  value.  Loan  arrangements  made by each Fund will comply with all
other applicable  regulatory  requirements,  including the rules of the New York
Stock Exchange, which presently require the borrower, after notice, to redeliver
the  securities  within the normal  settlement  time of three business days. All
relevant facts and circumstances,  including the creditworthiness of the broker,
dealer, or institution,  will be considered in making  decisions with respect to
the lending of securities, subject to review by the Board of Trustees.

     At the  present  time,  the Staff of the  Commission  does not object if an
investment  company pays  reasonable  negotiated  fees in connection with loaned
securities,  so long as such  fees  are set  forth  in a  written  contract  and
approved by the investment company's Trustees.  In addition,  voting rights pass
with the loaned  securities,  but if a material  event will occur  affecting  an
investment on loan, the loan must be called and the securities voted.

     VANGUARD INTERFUND LENDING PROGRAM.  The Commission has issued an exemptive
order permitting the Funds and other Vanguard funds to participate in Vanguard's
interfund  lending  program.  This program  allows the Vanguard  funds to borrow
money from and loan money to each other for temporary or emergency purposes. The
program is subject to a number of conditions,  including the requirement that no
fund may borrow or lend money  through  the  program  unless it  receives a more
favorable  interest rate than is available  from a typical bank for a comparable
transaction. In addition, a Vanguard fund may participate in the program only if
and to the  extent  that  such  participation  is  consistent  with  the  fund's
investment  objective and other investment  policies.  The Boards of Trustees of
the Vanguard  funds are  responsible  for ensuring  that the  interfund  lending
program operates in compliance with all conditions of the Commission's exemptive
order.

     FUTURES  CONTRACTS,  OPTIONS ON FUTURES  CONTRACTS,  WARRANTS,  CONVERTIBLE
SECURITIES, AND SWAP  AGREEMENTS.  Each Fund may enter into  futures  contracts,
warrants,  options  on  futures  contracts,   convertible  securities, and  swap
agreements for the purpose of remaining fully invested and reducing  transaction
costs.  Futures  contracts provide for the future sale by one party and purchase
by another  party of a  specified  amount of a specific  security at a specified
future time and at a specified price.  Futures  contracts which are standardized
as to maturity date and underlying  financial  instrument are traded on national
futures  exchanges.  The  Fund's  trading of futures  contracts  and  options is
regulated  under the  Commodity  Exchange Act by the Commodity  Futures  Trading
Commission  (CFTC),  a U.S.  Government  agency.  Assets  committed  to  futures
contracts will be segregated to the extent required by law.

     Each  Fund will  "under  normal  circumstances"  invest at least 80% of its
assets in stocks  represented in its respective  index.  However,  each Fund has
given  itself the  flexibility  to invest up to 50% of its assets in futures and
options  under other than normal  circumstances.  Any  investment in futures and
options over 20% of a Fund's assets would be made in emergency  situations,  for
short-term  purposes.

     Although most futures  contracts by their terms call for actual delivery or
acceptance of the underlying financial instrument, the Funds will generally only
utilize  stock index  contracts  which are settled by a cash

                                      B-5

<PAGE>

amount  equal to the value of an explicit  stock  index (such as the  Standard &
Poor's 500 Stock Index) on the contract  maturity date. In most cases,  however,
the contracts  are closed out before the  settlement  date.  Closing out an open
futures  position  is done by taking an opposite  position  ("buying" a contract
which has previously been "sold," "selling" a contract  previously  "purchased")
in an identical  contract to terminate the position.  Brokerage  commissions are
incurred when a futures contract is bought or sold.

     Futures traders are required to make a good faith margin deposit in cash or
government  securities  with a broker or custodian to initiate and maintain open
positions  in  futures  contracts.  A  margin  deposit  is  intended  to  assure
completion of the contract  (delivery or acceptance of the underlying  security)
if it is not terminated  prior to the specified  delivery date.  Minimal initial
margin  requirements are established by the futures exchange and may be changed.
Brokers may establish  deposit  requirements  which are higher than the exchange
minimums.  Futures contracts are customarily  purchased and sold on margin which
may range upward from less than 5% of the value of the contract being traded.

     After a futures contract  position is opened,  the value of the contract is
marked to market daily. If the futures contract price changes to the extent that
the  margin  on  deposit  does  not  satisfy  margin  requirements,  payment  of
additional  "variation"  margin  will be  required.  Conversely,  change  in the
contract  value may reduce the  required  margin,  resulting  in a repayment  of
excess margin to the contract holder.  Variation margin payments are made to and
from the  futures  broker for as long as the  contract  remains  open.  The Fund
expects to earn interest income on its margin deposits.

     Traders in futures contracts,  in general,  use the futures markets for one
of two  purposes:  1) to offset  or hedge  unfavorable  changes  in the value of
securities otherwise held (or expected to be held) for investment purposes;  or,
2) to profit from fluctuations in the financial instrument  underlying the value
of the futures contracts. In either case, futures contracts general offer a cost
effective  and  efficient  means to  replicate  exposure  to  various  financial
instruments.  The Funds intend to use futures  contracts to either simulate full
(or  near  full)  investment  in  stocks,  while  keeping  cash  on hand to meet
shareholder redemptions, or to reduce transaction costs. A Fund will not utilize
futures  contracts  to leverage  its  exposure to gains and losses to that above
100% of its assets.

     Regulations  of the CFTC  applicable to the Funds require that all of their
futures  transactions  constitute bona fide hedging  transactions  except to the
extent that the aggregate initial margins and premiums required to establish any
non-hedging  positions  do not  exceed  five  percent  of the  value of a Fund's
portfolio.  The Funds will only sell futures contracts to protect  securities it
owns against price declines or purchase contracts to protect against an increase
in the price of securities  it intends to purchase.  As evidence of this hedging
interest,  the Funds  expect  that  approximately  75% of all  futures  contract
purchases will be "completed;" that is, equivalent amounts of related securities
will have been  purchased or are being  purchased by the Funds upon sale of open
futures contracts.

     Although  techniques other than the sale and purchase of futures  contracts
could be used to control a Fund's  exposure to market  fluctuations,  the use of
futures contracts may be a more effective means of hedging this exposure.  While
the Funds will incur commission expenses in both opening and closing out futures
positions, these costs are lower than transaction costs incurred in the purchase
and sale of the underlying securities.

     RESTRICTIONS  ON THE USE OF FUTURES  CONTRACTS.  A Fund will not enter into
futures contract transactions to the extent that,  immediately  thereafter,  the
sum of its initial margin  deposits on open  contracts  exceeds 5% of the market
value of the Fund's  total  assets.  In  addition,  the Fund will not enter into
futures  contracts to the extent that its  outstanding  obligations  to purchase
securities under these contracts would exceed 20% of the Fund's total assets.

     RISK FACTORS IN FUTURES TRANSACTIONS. Positions in futures contracts may be
closed  out only on an  exchange  which  provides  a  secondary  market for such
futures.  However, there can be no assurance that a liquid secondary market will
exist for any particular futures contract at any specific time. Thus, it may not
be  possible  to  close a  futures  position.  In the  event  of  adverse  price
movements,  a Fund would  continue to be required to make daily cash payments to
maintain its required  margin.  In such  situations,  if a Fund has insufficient
cash, it may have to sell portfolio securities to meet daily margin requirements
at a time when it may be  disadvantageous  to do so. In addition,  a Fund may be
required to make delivery of the  instruments  underlying

                                      B-6
<PAGE>

futures contracts it holds. The inability to close options and futures positions
also could have an adverse impact on the ability to effectively hedge the Fund.

     A Fund will minimize the risk that it will be unable to close out a futures
contract by only  entering  into  futures  which are traded on national  futures
exchanges and for which there appears to be a liquid secondary market.

     The risk of loss in trading  futures  contracts in some  strategies  can be
substantial,  due both to the low margin  deposits  required,  and the extremely
high degree of leverage  involved in futures pricing.  As a result, a relatively
small  price  movement  in a  futures  contract  may  result  in  immediate  and
substantial loss (as well as gain) to the investor.  For example, if at the time
of purchase,  10% of the value of the futures contract is deposited as margin, a
subsequent  10% decrease in the value of the futures  contract would result in a
total  loss of the margin  deposit,  before any  deduction  for the  transaction
costs,  if the account  were then closed out. A 15%  decrease  would result in a
loss equal to 150% of the original  margin  deposit if the contract  were closed
out.  Thus,  a purchase  or sale of a futures  contract  may result in losses in
excess of the amount  invested  in the  contract.  However,  because the futures
strategies  of each Fund are engaged in only for hedging  purposes,  the adviser
does  not  believe  that a Fund is  subject  to the  risks  of  loss  frequently
associated  with futures  transactions.  A Fund would  presumably have sustained
comparable losses if, instead of the futures  contracts,  it had invested in the
underlying financial instrument and sold it after the decline.

     Utilization  of futures  transactions  by a Fund does  involve  the risk of
imperfect or no correlation,  particularly  considering  that futures  contracts
have set maturity dates (referred to as "expiration dates") while the underlying
equity  securities of the contract  generally do not. It is also possible that a
Fund could both lose money on futures contracts and also experience a decline in
value of its portfolio securities. There is also the risk of loss by the Fund of
margin  deposits in the event of  bankruptcy of a broker with whom a Fund has an
open position in a futures contract or related option. Additionally, investments
in  futures  and  options  involve  the risk that the  investment  adviser  will
incorrectly predict stock market and interest rate trends.

     Most futures exchanges limit the amount of fluctuation permitted in futures
contract  prices during a single  trading day. The daily limit  establishes  the
maximum  amount that the price of a futures  contract may vary either up or down
from the previous day's settlement  price at the end of a trading session.  Once
the daily limit has been reached in a particular type of contract, no trades may
be made on that day at a price beyond that limit.  The daily limit  governs only
price  movement  during a particular  trading day and  therefore  does not limit
potential  losses,  because the limit may prevent the liquidation of unfavorable
positions.  Futures contract prices have  occasionally  moved to the daily limit
for  several  consecutive  trading  days  with  little  or no  trading,  thereby
preventing  prompt  liquidation of futures positions and subjecting some futures
traders to substantial losses.

     SWAP AGREEMENTS. Swap agreements are contracts in which one party agrees to
make  payments  to the other  party  based on the  change  in market  value of a
specified index or asset. In return,  the other party agrees to make payments to
the first  party based on the return of a  different  specified  index or asset.
Although  swap  agreements  entail  the risk that a party  will  default  on its
payment  obligations  thereunder,  the Funds will minimize this risk by entering
into agreements  that mark to market no less  frequently  than  quarterly.  Swap
agreements  also  bear  the  risk  that a Fund  will  not be able  to  meet  its
obligation  to the  counterparty.  This risk will be mitigated by investing  the
Fund in the specific asset for which it is obligated to pay a return.

     FEDERAL TAX  TREATMENT  OF FUTURES  CONTRACTS.  Each Fund is  required  for
federal income tax purposes to recognize as income for each taxable year its net
unrealized  gains and losses on certain  futures  contracts as of the end of the
year as well as those  actually  realized  during the year. In these cases,  any
gain or loss recognized  with respect to a futures  contract is considered to be
60%  long-term  capital  gain or loss and 40%  short-term  capital gain or loss,
without  regard to the  holding  period  of the  contract.  Gains and  losses on
certain other futures contracts  (primarily non-U.S.  futures contracts) are not
recognized  until the  contracts  are closed and are  treated  as  long-term  or
short-term  depending on the holding  period of the  contract.  Sales of futures
contracts  which  are  intended  to  hedge  against  a  change  in the  value of
securities  held by a Fund may affect the holding period of such securities and,
consequently,   the  nature  of  the  gain  or  loss  on  such  securities  upon
disposition.  A Fund may be  required  to defer  the  recognition  of  losses on
futures  contracts to the extent of any unrecognized  gains on related positions
held by the Fund.

     In order for a Fund to continue to qualify for Federal income tax treatment
as a  regulated  investment  company,  at least  90% of its gross  income  for a
taxable year must be derived from qualifying income; i.e.,

                                      B-7
<PAGE>

dividends,  interest,  income derived from loans of  securities,  gains from the
sale of  securities  or of foreign  currencies,  or other  income  derived  with
respect to the Fund's  business of investing in securities or currencies.  It is
anticipated that any net gain recognized on futures contracts will be considered
qualifying income for purposes of the 90% requirement.

     Each Fund will  distribute to  shareholders  annually any net capital gains
which  have  been   recognized  for  federal  income  tax  purposes  on  futures
transactions.  Such distributions will be combined with distributions of capital
gains realized on the Fund's other  investments and shareholders will be advised
on the nature of the transactions.

                       FUNDAMENTAL INVESTMENT LIMITATIONS

     Each Fund is subject to the following fundamental  investment  limitations,
which  cannot be changed in any material way without the approval of the holders
of a majority of the affected Fund's shares. For these purposes, a "majority" of
shares  means  shares  representing  the lesser of: (i) 67% or more of the votes
cast to approve a change,  so long as shares  representing  more than 50% of the
Fund's net asset value are present or  represented  by proxy;  or (ii) more than
50% of the Fund's net asset value.

     ASSESSABLE SECURITIES. Each Fund may not invest in assessable securities or
securities involving unlimited liability on the part of the holders thereof.

     BORROWING.  Each  Fund  may not  borrow  money,  except  for  temporary  or
emergency purposes in an amount not exceeding 15% of the Fund's net assets. Each
Fund may borrow money through banks,  or Vanguard's  interfund  lending  program
only, and must comply with all applicable regulatory  conditions.  Each Fund may
not make any additional  investments whenever its outstanding  borrowings exceed
5% of net assets.

     COMMODITIES. Each Fund may not invest in commodities, except that each Fund
may invest in stock  futures  contracts,  stock  options,  and  options on stock
futures contracts. Under normal circumstances, no more than 5% of a Fund's total
assets may be used as initial margin deposit for futures contracts,  and no more
than 20% of a Fund's  total  assets  may be  invested  in futures  contracts  or
options at any time.

     DIVERSIFICATION.  With  respect to 75% of its total  assets,  each Fund may
not: (i) purchase more than 10% of the outstanding  voting securities of any one
issuer, or (ii) purchase  securities of any issuer if, as a result, more than 5%
of the Fund's total assets would be invested in that issuer's  securities.  This
limitation  does not apply to obligations of the United States  Government,  its
agencies, or instrumentalities.

     ILLIQUID  SECURITIES.  Each  Fund may not  acquire  any  security  if, as a
result, more than 15% of its net assets would be invested in securities that are
illiquid.

     INDUSTRY CONCENTRATION. Each Fund may not invest more than 25% of its total
assets in any one industry.

     INVESTING  FOR  CONTROL.  Each Fund may not  invest  in a  company  for the
purpose of controlling its management.

     INVESTMENT  COMPANIES.  Each Fund may not  invest  in any other  investment
company, except through a merger,  consolidation or acquisition of assets, or to
the extent permitted by Section 12 of the 1940 Act.  Investment  companies whose
shares the Fund acquires pursuant to Section 12 must have investment  objectives
and investment policies consistent with those of the Fund.

     LOANS.  Each Fund may not lend  money to any  person  except by  purchasing
fixed  income  securities,  entering  into  repurchase  agreements,  lending its
portfolio securities, or through Vanguard's interfund lending program.

     MARGIN.  Each Fund may not purchase securities on margin or sell securities
short,  except as  permitted  by the  Funds'  investment  policies  relating  to
commodities.

     OIL, GAS, MINERALS.  Each Fund may not invest in oil, gas, or other mineral
exploration or development programs.

     PLEDGING  ASSETS.  Each Fund may not pledge, mortgage, or hypothecate  more
than 15% of its net assets.

     REAL ESTATE. Each Fund may not invest directly in real estate,  although it
may invest in securities of companies that deal in real estate and bonds secured
by real estate.

     SENIOR  SECURITIES.  Each Fund may not issue senior  securities,  except in
compliance with the 1940 Act.

                                      B-8
<PAGE>

     UNDERWRITING.  Each Fund may not  engage in the  business  of  underwriting
securities  issued  by  other  persons.  The  Fund  will  not be  considered  an
underwriter when disposing of its investment securities.

     None  of  these  limitations  prevents  a Fund  from  participating  in The
Vanguard Group (Vanguard).  Because each Fund is a member of Vanguard, each Fund
may own securities issued by Vanguard, make loans to Vanguard, and contribute to
Vanguard's  costs or other financial  requirements.  See Management of the Funds
for more information.

     The  investment  limitations  set forth  above are  considered  at the time
investment securities are purchased.  If a percentage  restriction is adhered to
at the time the  investment is made, a later  increase in  percentage  resulting
from a change in the market  value of assets will not  constitute a violation of
such restriction.

                                   SHARE PRICE

     Each Fund's share price,  or "net asset value" per share,  is calculated by
dividing the net assets  attributable to each share class by the total number of
shares  outstanding for that class.  The net asset value is determined as of the
regular close of the New York Stock Exchange (the Exchange,  generally 4:00 p.m.
Eastern time) on each day the Exchange is open for trading.

     Portfolio  securities  for which market  quotations  are readily  available
(includes those securities listed on national securities  exchanges,  as well as
those quoted on the NASDAQ Stock Market) will be valued at the last quoted sales
price on the day the valuation is made. Such securities  which are not traded on
the  valuation  date are  valued  at the mean of the bid and ask  prices.  Price
information on  exchange-listed  securities is taken from the exchange where the
security is primarily  traded.  Any foreign  securities are valued at the latest
quoted sales price available before the time when assets are valued.  Securities
may be valued on the basis of prices  provided  by a pricing  service  when such
prices are believed to reflect the fair market value of such securities.

     Short-term instruments (those with remaining maturities of 60 days or less)
may be valued at cost,  plus or minus any amortized  discount or premium,  which
approximates market value.

     Bonds  and  other  fixed  income  securities  may be valued on the basis of
prices  provided by a pricing  service  when such prices are believed to reflect
the fair  market  value of such  securities.  The prices  provided  by a pricing
service  may be  determined  without  regard to bid or last sale  prices of each
security,  but take into  account  institutional-size  transactions  in  similar
groups of securities as well as any developments related to specific securities.

     Foreign  securities are valued at the last quoted sales price,  or the most
recently   determined  closing  price  calculated   according  to  local  market
convention, available at the time a Fund is valued. Prices are obtained from the
broadest and most representative market on which the securities trade. If events
which  materially  affect the value of each Fund's  investments  occur after the
close of the securities  markets on which such securities are primarily  traded,
those  investments  may be valued by such methods as the Board of Trustees deems
in good faith to reflect fair value.

     In  determining  each  Fund's  net asset  value per  share,  all assets and
liabilities  initially  expressed in foreign  currencies  will be converted into
U.S.  dollars using the  officially  quoted daily  exchange rates used by Morgan
Stanley Capital  International in calculating various benchmarking indexes. This
officially quoted exchange rate may be determined prior to or after the close of
a particular  securities  market. If such quotations are not available or do not
reflect market  conditions at the time the Fund is valued,  the rate of exchange
will be determined in accordance with policies  established in good faith by the
Board of Trustees.

     Other assets and securities  for which no quotations are readily  available
or which are restricted as to sale (or resale) are valued by such methods as the
Board of Trustees deems in good faith to reflect fair value.

     The  share  price  for  each  Fund can be found  daily in the  mutual  fund
listings of most major newspapers under the heading of Vanguard Index Funds.

                                     B-9
<PAGE>

                               PURCHASE OF SHARES

     Each Fund  reserves  the right in its sole  discretion  (i) to suspend  the
offerings of its shares,  (ii) to reject purchase orders when in the judgment of
management  such  rejection is in the best  interests of the Fund,  and (iii) to
reduce or waive the minimum  investment for or any other restrictions on initial
and  subsequent  investments  as well as redemption  fees for certain  fiduciary
accounts or under circumstances where certain economies can be achieved in sales
of the Fund's shares.

                              REDEMPTION OF SHARES

     Each Fund may suspend redemption privileges or postpone the date of payment
(i) during any period that the New York Stock Exchange is closed,  or trading on
the Exchange is  restricted as  determined  by the  Commission,  (ii) during any
period  when an  emergency  exists as defined by the  Commission  as a result of
which it is not  reasonably  practicable  for the Fund to dispose of  securities
owned by it, or fairly to determine the value of its assets,  and (iii) for such
other periods as the Commission may permit.

     Each  Fund has made an  election  with  the  Commission  to pay in cash all
redemptions  requested by any shareholder of record limited in amount during any
90-day  period to the lesser of  $250,000 or 1% of the net assets of the Fund at
the beginning of such period.

     No charge is made by the Fund for redemptions from the European and Pacific
Funds.  There is a 0.5% redemption fee charged for redemptions from the Emerging
Markets Fund.  The  redemption fee is paid to the Fund to reimburse the Fund for
transaction costs it incurs while  liquidating  securities in order to meet fund
redemptions.  Shares  redeemed  may be worth more or less than what was paid for
them, depending on the market value of the securities held by the Funds.

TRADING SHARES THROUGH CHARLES SCHWAB

     Each Fund has authorized  Charles Schwab & Co., Inc.  (Schwab) to accept on
its behalf  purchase and redemption  orders under certain terms and  conditions.
Schwab is also authorized to designate other  intermediaries  to accept purchase
and  redemption  orders  on each  Fund's  behalf  subject  to  those  terms  and
conditions. Under this arrangement,  each Fund will be deemed to have received a
purchase or redemption order when Schwab or, if applicable,  Schwab's authorized
designee,  accepts  the  order in  accordance  with  each  Fund's  instructions.
Customer  orders that are  properly  transmitted  to each Fund by Schwab,  or if
applicable, Schwab's authorized designee, will be priced as follows:

     Orders  received by Schwab before 3 p.m.  Eastern time on any business day,
will be sent to  Vanguard  that day and your  share  price will be based on each
Fund's  net asset  value  calculated  at the close of trading  that day.  Orders
received by Schwab after 3 p.m.  Eastern  time,  will be sent to Vanguard on the
following  business  day and your share  price will be based on each  Fund's net
asset value calculated at the close of trading that day.

                            MANAGEMENT OF THE FUNDS

OFFICERS AND TRUSTEES

     The  officers  of  each  Fund  manage  its  day-to-day  operations  and are
responsible to the Fund's Board of Trustees. The Trustees set broad policies for
the Funds and choose its  officers.  The following is a list of the Trustees and
officers of the Funds and a statement of their  present  positions and principal
occupations  during the past five years.  As a group,  the Funds'  Trustees  and
officers own less than 1% of the  outstanding  shares of each Fund. Each Trustee
also serves as a Director of The Vanguard Group,  Inc., and as a Trustee of each
of the funds  administered by Vanguard.  The mailing address of the Trustees and
officers of the Funds is Post Office Box 876, Valley Forge, PA 19482.

JOHN J. BRENNAN,  (DOB: 7/29/1954) Chairman,  Chief Executive Officer & Trustee*
Chairman, Chief Executive Officer, and Director of The Vanguard Group, Inc., and
Trustee of each of the investment companies in The Vanguard Group.

                                      B-10
<PAGE>

JOANN HEFFERNAN HEISEN, (DOB: 1/25/1950) Trustee
Vice President, Chief Information Officer, and member of the Executive Committee
of Johnson & Johnson (Pharmaceuticals/Consumer  Products); Director of Johnson &
Johnson*MERCK Consumer Pharmaceuticals Co., The Medical Center at Princeton, and
Women's Research and Education Institute.

BRUCE K. MACLAURY, (DOB: 5/7/1931) Trustee
President  Emeritus  of  The  Brookings  Institution  (Independent  Non-Partisan
Research  Organization);  Director of American  Express Bank, Ltd., The St. Paul
Companies, Inc. (Insurance and Financial Services), and National Steel Corp.

BURTON G. MALKIEL, (DOB: 8/28/1932) Trustee
Chemical Bank Chairman's Professor of Economics, Princeton University;  Director
of Prudential Insurance Co. of America, Banco Bilbao Gestinova, Baker Fentress &
Co.  (Investment  Management),  The Jeffrey Co.  (Holding  Company),  and Select
Sector SPDR Trust (Exchange-Traded Mutual Fund).

ALFRED M. RANKIN, JR., (DOB: 10/8/1941) Trustee
Chairman,  President, Chief Executive Officer, and Director of NACCO Industries,
Inc. (Machinery/Coal/  Appliances); and Director of The BFGoodrich Co. (Aircraft
Systems/Manufacturing/Chemicals).

JOHN C. SAWHILL, (DOB: 6/12/1936) Trustee
President  and Chief  Executive  Officer of The Nature  Conservancy  (Non-Profit
Conservation Group);  Director of Pacific Gas and Electric Co., Procter & Gamble
Co., NACCO Industries (Machinery/Coal/Appliances),  and Newfield Exploration Co.
(Energy); formerly, Director and Senior Partner of McKinsey & Co., and President
of New York University.

JAMES O. WELCH, JR., (DOB: 5/13/1931) Trustee
Retired Chairman of Nabisco Brands, Inc. (Food Products);  retired Vice Chairman
and  Director  of RJR  Nabisco  (Food and  Tobacco  Products);  Director of TECO
Energy, Inc., and Kmart Corp.

J. LAWRENCE WILSON, (DOB: 3/2/1936) Trustee
Retired  Chairman of Rohm & Haas Co.  (Chemicals);  Director  of Cummins  Engine
Co.(Diesel Engine Company), and The Mead Corp. (Paper Products);  and Trustee of
Vanderbilt University.

RAYMOND J. KLAPINSKY, (DOB: 12/7/1938) Secretary*
Managing Director of The Vanguard Group, Inc.;  Secretary of The Vanguard Group,
Inc. and of each of the investment companies in The Vanguard Group.

THOMAS J. HIGGINS, (DOB: 5/21/1957) Treasurer*
Principal  of The Vanguard  Group,  Inc.;  Treasurer  of each of the  investment
companies in The Vanguard Group.

ROBERT D. SNOWDEN, (DOB: 9/4/1961) Controller*
Principal of The Vanguard  Group,  Inc.;  Controller  of each of the  investment
companies in The Vanguard Group.
- ---------
*Officers of the Funds are "interested persons" as defined in the 1940 Act.

THE VANGUARD GROUP

     Each Fund is a member of The Vanguard Group of Investment Companies,  which
consists of more than 100 funds.  Through their  jointly-owned  subsidiary,  The
Vanguard Group, Inc.  (Vanguard),  the Funds and the other funds in The Vanguard
Group   obtain   at  cost   virtually   all  of  their   corporate   management,
administrative,  and distribution  services.  Vanguard also provides  investment
advisory services on an at-cost basis to certain Vanguard funds.

     Vanguard  employs  a  supporting  staff of  management  and  administrative
personnel  needed  to  provide  the  requisite  services  to the  funds and also
furnishes the funds with  necessary  office space,  furnishings,  and equipment.
Each fund pays its share of Vanguard's net expenses,  which are allocated  among
the funds under  methods  approved  by the Board of  Trustees  of each fund.  In
addition,  each fund bears its own direct expenses, such as legal, auditing, and
custodian fees.

     The Funds' officers are also officers and employees of Vanguard. No officer
or employee owns, or is permitted to own, any securities of any external adviser
for the funds.

                                      B-11
<PAGE>


     Vanguard has adopted a Code of Ethics designed to prevent employees who may
have access to nonpublic  information about the trading  activities of the Funds
(access persons) from profiting from that  information.  The Code permits access
persons to invest in  securities  for their own accounts,  including  securities
that  may  be  held  by  the  Funds,  but  places   substantive  and  procedural
restrictions on their trading  activities.  For example,  the Code requires that
access persons of the Funds receive advance  approval for every securities trade
to ensure that there is no conflict with the trading activities of the Funds.

     Vanguard was  established and operates under an Amended and Restated Funds'
Service  Agreement which was approved by the  shareholders of each of the funds.
The amounts  which each of the funds has invested are adjusted from time to time
in order to maintain the proportionate relationship between each fund's relative
net assets and its contribution to Vanguard's capital.  The Amended and Restated
Funds' Service Agreement  provides that each Vanguard fund may be called upon to
invest up to 0.40% of its current net assets in  Vanguard  as  contributions  to
Vanguard's  capitalization.  At December  31,  1999,  each Fund had  contributed
capital to  Vanguard  representing  0.02 of each  Fund's net  assets.  The total
amount  contributed  by the  Funds was  $1,796,000,  which  represented  1.8% of
Vanguard's capitalization.

     MANAGEMENT.  Corporate management and administrative  services include: (1)
executive  staff;  (2) accounting and financial;  (3) legal and regulatory;  (4)
shareholder  account  maintenance;  (5)  monitoring  and  control  of  custodian
relationships;  (6)  shareholder  reporting;  and (7) review and  evaluation  of
advisory and other services provided to the Funds by third parties.

     DISTRIBUTION.  Vanguard Marketing Corporation, a wholly-owned subsidiary of
The Vanguard Group, Inc., provides all distribution and marketing activities for
the funds in the Group. The principal distribution expenses are for advertising,
promotional  materials and marketing personnel.  Distribution  services may also
include  organizing  and offering to the public,  from time to time, one or more
new investment  companies which will become members of The Vanguard  Group.  The
Trustees and officers of Vanguard  determine the amount to be spent  annually on
distribution  activities,  the manner  and amount to be spent on each fund,  and
whether to organize new investment companies.

     One half of the distribution expenses of a marketing and promotional nature
is allocated  among the funds based upon relative net assets.  The remaining one
half of those expenses is allocated among the funds based upon each fund's sales
for the preceding 24 months relative to the total sales of the funds as a Group;
provided,  however,  that no fund's aggregate quarterly rate of contribution for
distribution expenses of a marketing and promotional nature shall exceed 125% of
the average  distribution  expense rate for The Vanguard Group, and that no fund
shall  incur  annual  distribution  expenses  in  excess  of 20/100 of 1% of its
average  month-end  net assets.  Expenses  paid to Vanguard  for  marketing  and
distribution activities will be allocated to the class of shares of each Fund on
behalf of which the expenses  were incurred by making such  allocations  to each
share  class as if each such  class  were a  separate  Vanguard  fund.  Expenses
associated with  Vanguard's  provision of shareholder  account  services will be
allocated to each share class on the basis of the amount  incurred by each share
class.

     During the fiscal years ended December 31, 1997,  1998, and 1999, the Funds
incurred the following  approximate  amounts of The Vanguard Group's  management
(including transfer agency), distribution, and marketing expenses.

     FUND                                      1997        1998         1999
     ----                                      ----        ----         ----
     European Stock Index Fund ......... $4,979,000  $7,906,000  $12,019,000
     Pacific Stock Index Fund ..........  2,737,000   2,932,000    5,173,000
     Emerging Markets Stock Index Fund .  2,410,000   2,036,000    2,643,000

INVESTMENT ADVISORY SERVICES

     Investment   advisory   services   to  the   Funds  are   provided   on  an
"internalized,"  at-cost basis from an experienced  investment  management staff
employed directly by Vanguard. The compensation and other expenses of this staff
are paid by the Vanguard funds utilizing these services.

                                      B-12
<PAGE>

     During the fiscal years ended December 31, 1997,  1998, and 1999, the Funds
incurred  expenses  for  investment   advisory  services  of  approximately  the
following amounts:

     FUND                                         1997     1998     1999
     ----                                         ----     ----     ----
     European Stock Index Fund ..............  $23,000  $47,000  $87,000
     Pacific Stock Index Fund ...............   23,000   47,000   87,000
     Emerging Markets Stock Index Fund ......   23,000   47,000   87,000

TRUSTEE COMPENSATION

     The same  individuals  serve as  Trustees of all  Vanguard  funds (with two
exceptions,  which are noted in the table appearing below), and each fund pays a
proportionate  share of the  Trustees'  compensation.  The  funds  employ  their
officers on a shared basis,  as well.  However,  officers are compensated by The
Vanguard Group, Inc., not the funds.

     INDEPENDENT TRUSTEES. The funds compensate their independent Trustees--that
is, the ones who are not also officers of the funds--in three ways:

- -    The  independent  Trustees  receive an annual fee for their  service to the
     funds, which is subject to reduction based on absences from scheduled Board
     meetings.

- -    The  independent  Trustees are reimbursed for the travel and other expenses
     that they incur in attending Board meetings.

- -    Upon retirement,  the independent  Trustees receive an aggregate annual fee
     of  $1,000  for each year  served  on the  Board,  up to  fifteen  years of
     service.  This annual fee is paid for ten years  following  retirement,  or
     until each Trustee's death.

     "INTERESTED"  TRUSTEE.  Mr. Brennan serves as a Trustee, but is not paid in
this  capacity.  He is,  however,  paid in his role as officer  of The  Vanguard
Group, Inc.

     COMPENSATION TABLE. The following table provides  compensation  details for
each of the Trustees.  We list the amounts paid as  compensation  and accrued as
retirement benefits by the Funds for each Trustee. In addition,  the table shows
the total  amount of benefits  that we expect each  Trustee to receive  from all
Vanguard funds upon  retirement,  and the total amount of  compensation  paid to
each Trustee by all Vanguard funds.

                    VANGUARD INTERNATIONAL EQUITY INDEX FUNDS
                               COMPENSATION TABLE

<TABLE>
<CAPTION>
<S>                     <C>             <C>                  <C>                <C>
                                           PENSION OR                                 TOTAL
                         AGGREGATE         RETIREMENT                             COMPENSATION
                        COMPENSATION    BENEFITS ACCRUED                        FROM ALL VANGUARD
                         FROM THESE     AS PART OF THESE     ESTIMATED ANNUAL     FUNDS PAID TO
                            FUNDS        FUNDS' EXPENSES      BENEFITS UPON          TRUSTEES
NAMES OF TRUSTEES            (1)               (1)              RETIREMENT              (2)
- ----------------------------------------------------------------------------------------------------
John C. Bogle(3)             None             None                 None                 None
John J. Brennan              None             None                 None                 None
JoAnn Heffernan Heisen     $1,376              $76              $15,000              $80,000
Bruce K. MacLaury          $1,426             $129              $12,000              $75,000
Burton G. Malkiel          $1,386             $125              $15,000              $80,000
Alfred M. Rankin, Jr.      $1,376              $92              $15,000              $80,000
John C. Sawhill            $1,376             $116              $15,000              $80,000
James O. Welch, Jr.        $1,376             $134              $15,000              $80,000
J. Lawrence Wilson         $1,376              $97              $15,000              $80,000
</TABLE>
- ---------
(1)  The amounts  shown in this column are based on the Funds' fiscal year ended
     December 31, 1999.
(2)  The amounts reported in this column reflect the total  compensation paid to
     each Trustee for his or her service as Trustee of 103  Vanguard  funds (102
     in the case of Mr.  Malkiel;  93 in the case of Mr.  MacLaury) for the 1999
     calendar year.
(3)  Mr. Bogle has retired from the Funds' Board, effective December 31, 1999.

                                      B-13
<PAGE>

                             PORTFOLIO TRANSACTIONS

     In placing  portfolio  transactions,  each Fund uses its best  judgment  to
choose the broker most capable of providing the brokerage  services necessary to
obtain the best available price and most favorable execution. The full range and
quality  of  brokerage   services  available  are  considered  in  making  these
determinations.  In those instances where it is reasonably  determined that more
than one  broker  can offer the  brokerage  services  needed to obtain  the best
available  price and most favorable  execution,  consideration  will be given to
those brokers which supply statistical information and provide other services in
addition to execution services to the Funds.

     For the fiscal years ended  December 31, 1997,  1998,  and 1999,  the Funds
paid the following approximate amounts in brokerage commissions.

     FUND                                      1997        1998        1999
     ----                                      ----        ----        ----
     European Stock Index Fund ......... $1,522,000  $4,485,000  $3,125,000
     Pacific Stock Index Fund ..........    605,000     370,000   1,003,000
     Emerging Markets Stock Index Fund .  2,302,000     987,000   1,829,000

                                  TOTAL RETURN

     The average  annual  total  return of each Fund for the one- and  five-year
periods ended December 31, 1999 and since its inception are set forth below:

                                    1 YEAR ENDED   5 YEARS ENDED     SINCE
FUND                                 12/31/1999      12/31/1999    INCEPTION*
- ----                                 ----------      ----------    ----------
European Stock Index Fund**........    16.62%          22.58%        14.61%
Pacific Stock Index Fund**.........    57.05%           2.52%         3.20%
Emerging Markets Stock Index Fund+.    59.96%           4.88%         6.03%
- ---------
 *June 18, 1990 for European and Pacific Stock Index Funds,  and May 4, 1994 for
  Emerging Markets Stock Index Fund.
**Return figures do not reflect the annual account maintenance fee imposed on
  accounts with balances of less than $10,000, or the transaction fee imposed on
  purchases prior to April 1, 2000.
 +Return figures do not reflect the annual account maintenance fee imposed on
  accounts with balances of less than $10,000, but do reflect the 0.5% trans-
  action fee imposed on purchases and redemptions.

     The Funds' transaction fees were as follows:

FUND                               PURCHASE FEES              REDEMPTION FEES
- ----                               -------------              ---------------
European Stock Index    None (beginning 4/1/2000)             None
Fund                    0.5% (from 11/3/1997 to 3/31/2000)
                        1.0% (from 6/18/1990 to 11/2/1997)

Pacific Stock Index     None (beginning 4/1/2000)             None
Fund                    0.5% (from 1/1/1997 to 3/31/2000)
                        1.0% (from 6/18/1990 to 12/31/1996)

Emerging Markets Stock  0.5% (beginning 4/1/2000)             0.5% (beginning
Index Fund              1.0% (from 11/3/1997 to 3/31/2000)      4/1/2000)
                        1.5% (from 1/1/1997 to 11/2/1997)     1.0% (from 5/4/
                        2.0% (from 5/4/1994 to 12/31/1996)      1994 to 3/31/
                                                                2000

                                      B-14
<PAGE>

AVERAGE ANNUAL TOTAL RETURN

     Average annual total return is the average annual compounded rate of return
for the periods of one year, five years,  ten years or the life of the Fund, all
ended on the last day of a recent month.  Average annual total return quotations
will  reflect  changes  in the price of the Fund's  shares  and assume  that all
dividends and capital gains  distributions  during the  respective  periods were
reinvested in Fund shares.  Average annual total return is calculated by finding
the average annual compounded rates of return of a hypothetical  investment over
such periods  according to the following formula (average annual total return is
then expressed as a percentage):

                              T = (ERV/P)1/N - 1

     Where:

          T   =average annual total return
          P   =a hypothetical initial investment of $1,000
          n   =number of years
          ERV =ending redeemable value: ERV is the value, at the end
               of the applicable period, of a hypothetical $1,000
               investment made at the beginning of the applicable
               period

AVERAGE ANNUAL AFTER-TAX TOTAL RETURN QUOTATION

     We calculate the Fund's  average annual  after-tax  total return by finding
the  average  annual  compounded  rate of return  over the 1-, 5-,  and  10-year
periods that would equate the initial  amount  invested to the after-tax  value,
according to the following formulas:

                                P (1+T)N = ATV

     Where:

          P   =a hypothetical initial payment of $1,000
          T   =average annual after-tax total return
          n   =number of years
          ATV =after-tax value at the end of the 1-, 5-, or 10-year
               periods of a hypothetical $1,000 payment made at the
               beginning of the time period, assuming no liquidation
               of the investment at the end of the measurement periods

     Instructions:

1.   Assume all distributions by the Fund are  reinvested--less the taxes due on
     such  distributions--at  the price on the  reinvestment  dates  during  the
     period.  Adjustments  may be made for  subsequent  re-characterizations  of
     distributions.

2.   Calculate  the  taxes  due on  distributions  by the Fund by  applying  the
     highest federal  marginal tax rates to each component of the  distributions
     on the reinvestment date (e.g.,  ordinary income,  short-term capital gain,
     long-term  capital gain,  etc.).  For periods after  December 31, 1997, the
     federal marginal tax rates used for the calculations are 39.6% for ordinary
     income and  short-term  capital gains and 20% for long-term  capital gains.
     Note that the  applicable tax rates may vary over the  measurement  period.
     Assume no taxes are due on the portions of any distributions  classified as
     exempt  interest  or  non-taxable  (i.e.,  return of  capital).  Ignore any
     potential tax liabilities other than federal tax liabilities  (e.g.,  state
     and local taxes).

3.   Include all recurring  fees that are charged to all  shareholder  accounts.
     For any  account  fees that vary  with the size of the  account,  assume an
     account size equal to the Fund's mean (or median) account size. Assume that
     no  additional  taxes or tax credits  result from any  redemption of shares
     required to pay such fees.

4.   State the total return quotation to the nearest hundredth of one percent.

                                      B-15
<PAGE>

CUMULATIVE TOTAL RETURN

     Cumulative  total return is the cumulative rate of return on a hypothetical
initial  investment of $1,000 for a specified  period.  Cumulative  total return
quotations reflect changes in the price of the Fund's shares and assume that all
dividends and capital gains  distributions  during the period were reinvested in
Fund shares.  Cumulative  total return is calculated  by finding the  cumulative
rates of a return of a hypothetical  investment over such periods,  according to
the  following  formula   (cumulative  total  return  is  then  expressed  as  a
percentage):

                                 C = (ERV/P) - 1

     Where:

          C   =cumulative total return
          P   =a hypothetical initial investment of $1,000
          ERV =ending redeemable value: ERV is the value, at the end
               of the applicable period, of a hypothetical $1,000
               investment made at the beginning of the applicable
               period

SEC YIELDS

     Yield is the net  annualized  yield  based on a  specified  30-day  (or one
month) period assuming semiannual  compounding of income. Yield is calculated by
dividing the net  investment  income per share  earned  during the period by the
maximum offering price per share on the last day of the period, according to the
following formula:

                         YIELD = 2[((A-B)/CD+1)6 - 1]

     Where:

          a   =dividends and interest earned during the period
          b   =expenses accrued for the period (net of reimbursements)
          c   =the average daily number of shares outstanding during
               the period that were entitled to receive dividends
          d   =the maximum offering price per share on the last day of
               the period

                               COMPARATIVE INDEXES

     Vanguard may use reprinted material  discussing The Vanguard Group, Inc. or
any of the member funds of The Vanguard Group of Investment Companies. The funds
may  use  one or  more  of  the  following  unmanaged  indexes  for  comparative
performance purposes:

SELECT  EMERGING  MARKETS FREE  INDEX--is an  unpublished  index which  includes
common  stocks of  companies  located in 13 emerging  markets and the  developed
countries of Hong Kong and Singapore.

MORGAN STANLEY CAPITAL INTERNATIONAL EUROPE, AUSTRALASIA,  FAR EAST INDEX--is an
arithmetic,  market  value-weighted  average  of the  performance  of over 1,000
securities  listed on the stock  exchanges of  countries  in Europe,  Australia,
Asia, and the Far East.

MORGAN STANLEY CAPITAL INTERNATIONAL EMERGING MARKETS FREE INDEX--an arithmetic,
market  value-weighted  average of the  performance of securities  listed on the
stock exchanges of 22 developing countries.

MORGAN STANLEY  CAPITAL  INTERNATIONAL  EUROPE,  AUSTRALASIA,  FAR EAST + SELECT
EMERGING MARKETS FREE INDEX--an arithmetic, market value-weighted average of the
performance of securities listed on the stock markets of Europe,  Australia, the
Far East and 15 developing countries.

TOTAL  INTERNATIONAL  COMPOSITE INDEX--a Vanguard maintained index that combines
the Morgan Stanley  Capital  International  EAFE Index with the Select  Emerging
Markets Free Index on a market value-weighted basis.

FT-ACTUARIES  WORLD  INDEX--includes  approximately  2,400  securities  from  24
countries including the U.S.

FT-ACTUARIES EURO-PACIFIC INDEX--a subset of the FT Actuaries World Index, which
excludes companies in the U.S., Canada, Mexico, and South Africa.

SALOMON-RUSSELL  PRIMARY MARKET INDEX--consists of the approximately 700 largest
stocks within 23 countries.

SALOMON-RUSSELL  EXTENDED MARKET  INDEX--consists of approximately  1,000 medium
and small capitalization stocks from 23 countries.

SALOMON-RUSSELL  BROAD MARKET  INDEX--consists  of all of the stocks  within the
Primary Market Index and the Extended Market Index.

                                      B-16
<PAGE>

RUSSELL UNIVERSE OF NON-U.S.  EQUITY PORTFOLIOS--a universe of separate accounts
and pooled funds  available  to U.S.  investors,  which invest in  international
equities.

RUSSELL  UNIVERSE OF WORLD  EQUITY  PORTFOLIOS--a  universe  of  equity-oriented
global portfolios.

LIPPER  INTERNATIONAL  UNIVERSE--a  universe  of  mutual  funds  that  invest in
international equities.

LIPPER  DIVERSIFIED  INTERNATIONAL  UNIVERSE--a  universe  of mutual  funds that
invest in international equities from more than one country.

LIPPER  INTERNATIONAL  AVERAGE--the average return of the portfolios included in
the Lipper International Universe.

LIPPER DIVERSIFIED  INTERNATIONAL  AVERAGE--the average return of the portfolios
included in the Lipper Diversified International Universe.

STANDARD AND POOR'S 500 COMPOSITE STOCK PRICE INDEX--includes stocks selected by
Standard & Poor's Index Committee to include leading companies in leading
industries and to reflect the U.S. stock market.

STANDARD AND POOR'S MIDCAP 400 INDEX--is  composed of 400 medium sized  domestic
stocks.

STANDARD AND POOR'S SMALLCAP 600/BARRA VALUE  INDEX--contains  stocks of the S&P
SmallCap 600 Index which have a lower than average price-to-book ratio.

STANDARD AND POOR'S SMALLCAP 600/BARRA GROWTH  INDEX--contains stocks of the S&P
SmallCap 600 Index which have a higher than average price-to-book ratio.

RUSSELL  1000  VALUE  INDEX--consists  of the stocks in the  Russell  1000 Index
(comprising  the 1,000  largest  U.S.-based  companies  measured by total market
capitalization)  with the lowest  price-to-book  ratios,  comprising  50% of the
market capitalization of the Russell 1000.

WILSHIRE  5000 TOTAL MARKET  INDEX--consists  of more than 7,000  common  equity
securities,  covering  all  stocks  in the  U.S.  for  which  daily  pricing  is
available.

WILSHIRE  4500  COMPLETION  INDEX--consists  of all stocks in the Wilshire  5000
except for the 500 stocks in the Standard and Poor's 500 Index.

SALOMON BROTHERS HIGH-GRADE  CORPORATE BOND  INDEX--consists of publicly issued,
non-convertible  corporate bonds rated Aa or Aaa. It is a value-weighted,  total
return index, including  approximately 800 issues with maturities of 12 years or
greater.

BARING  EMERGING  MARKETS  INDEX--a   diversified  index  of  approximately  250
relatively liquid stocks from 13 emerging market countries.

SALOMON BROTHERS BROAD  INVESTMENT-GRADE  BOND INDEX--is a market-weighted index
that contains approximately 4,700 individually priced investment-grade corporate
bonds  rated BBB or better,  U.S.  Treasury  and  agency  issues,  and  mortgage
pass-through securities.

SHEARSON LEHMAN LONG-TERM  TREASURY BOND INDEX--is composed of all bonds covered
by the Shearson  Lehman Hutton  Treasury Bond Index with maturities of ten years
or greater.

NASDAQ INDUSTRIAL INDEX--is composed of more than 3,000 industrial issues. It is
a  value-weighted  index  calculated  on price  change only and does not include
income.

COMPOSITE  INDEX--65%  Standard  & Poor's  500  Index  and 35%  Lehman  Brothers
Corporate A or Better Bond Index.

COMPOSITE  INDEX--65% Lehman Brothers Corporate A or Better Bond Index and a 35%
weighting in a blended  equity  composite  (75%  Standard &  Poor's/BARRA  Value
Index,  12.5%  Standard  & Poor's  Utilities  Index and 12.5%  Standard & Poor's
Telephone Index).

LEHMAN BROTHERS  LONG-TERM  CORPORATE AA OR BETTER BOND  INDEX--consists  of all
publicly    issued,    fixed    rate,     nonconvertible    investment    grade,
dollar-denominated, SEC-registered corporate debt rated Aa or Aaa.

                                      B-17

<PAGE>

                              FINANCIAL STATEMENTS

     The Funds'  Financial  Statements as of and for the year ended December 31,
1999, appearing in the Funds' 1999 Annual Report to Shareholders, and the report
thereon of PricewaterhouseCoopers  LLP, independent accountants,  also appearing
therein,   are  incorporated  by  reference  in  this  Statement  of  Additional
Information.  For a more complete discussion of the performance,  please see the
Funds' Annual Report to Shareholders, which may be obtained without charge.



                                                               SAI072-04/28/2000

                                      B-18



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