GLENBROOK LIFE & ANNUITY CO SEPARATE ACCOUNT A
485BPOS, 2000-04-21
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AS FILED WITH THE  SECURITIES  AND  EXCHANGE COMMISSION  ON  APRIL 21, 2000
- ------------------------------------------------------------------------------


                                                          FILE NOS. 333-50879
                                                                    811-07351

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM N-4

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                       POST-EFFECTIVE AMENDMENT NO. 4 /X/

                                     AND/OR

               REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY
                                   ACT OF 1940

                               AMENDMENT NO. 14/X/

              GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A
                           (Exact Name of Registrant)

                       GLENBROOK LIFE AND ANNUITY COMPANY
                               (Name of Depositor)

                                 3100 SANDERS ROAD
                           NORTHBROOK, ILLINOIS 60062
                                  847/402-2400
         (Address and Telephone number of Depositor's Principal Offices)

                               MICHAEL J. VELOTTA
                  VICE PRESIDENT, SECRETARY AND GENERAL COUNSEL
                       GLENBROOK LIFE AND ANNUITY COMPANY
                                3100 SANDERS ROAD
                           NORTHBROOK, ILLINOIS 60062
                                  847/402-2400
       (Name, Complete Address and Telephone Number of Agent for Service)

                                   COPIES TO:

RICHARD T. CHOI, ESQUIRE                     TERRY R. YOUNG, ESQUIRE
FREEDMAN, LEVY, KROLL & SIMONDS              ALFS, INC
1050 CONNECTICUT AVENUE, N.W.                3100 SANDERS ROAD
SUITE 825                                    SUITE J5B
WASHINGTON, D.C.  20036-5366                 NORTHBROOK, IL  60062

            Approximate date of proposed public offering: Continuous

              IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE
                             (CHECK APPROPRIATE BOX)

/ / immediately  upon filing pursuant to paragraph (b) of Rule 485
/X/ on May 1, 2000 pursuant  to  paragraph  (b) of Rule 485
/ / 60 days after  filing  pursuant  to paragraph  (a)(1) of Rule 485
/ / on (date) pursuant to paragraph (a)(i) of Rule 485

                    IF APPROPRIATE, CHECK THE FOLLOWING BOX:

/ /  This  post-effective  amendment  designates  a  new  effective  date  for a
previously filed post-effective amendment.

Title  of  Securities  Being  Registered:   Flexible  Premium  Deferred  Annuity
Contracts and Participating Interests Therein.

<PAGE>

                  THE AIM LIFETIME PLUS(SM) II VARIABLE ANNUITY

Glenbrook Life and Annuity Company                 Prospectus dated May 1, 2000
Post Office Box 94039, Palatine, IL 60094-4039
Telephone Number: 1-800-776-6978

Glenbrook Life and Annuity  Company  ("Glenbrook")  is offering the AIM Lifetime
Plus (SM) II Variable Annuity, an individual and group flexible premium deferred
variable annuity contract  ("Contract").  This prospectus  contains  information
about the  Contract  that you should know before  investing.  Please keep it for
future reference.

The  Contract   currently   offers  20  investment   alternatives   ("investment
alternatives").  The  investment  alternatives  include 3 fixed account  options
("Fixed Account Options") and 17 variable sub-accounts ("Variable Sub-Accounts")
of the  Glenbrook  Life  and  Annuity  Company  Separate  Account  A  ("Variable
Account"). Each Variable Sub-Account invests exclusively in shares of one of the
following funds ("Funds") of AIM Variable Insurance Funds:
<TABLE>
<CAPTION>
<S>                                                  <C>
AIM V.I. Aggressive Growth Fund                      AIM V.I. Government Securities Fund
AIM V.I. Balanced Fund                               AIM V.I. Growth Fund
AIM V.I. Blue Chip Fund                              AIM V.I. Growth and Income Fund
AIM V.I. Capital Appreciation Fund                   AIM V.I. High Yield Fund
AIM V.I. Capital Development Fund                    AIM V.I. International Equity Fund
AIM V.I. Dent Demographic Trends Fund                AIM V.I. Money Market Fund
AIM V.I. Diversified Income Fund                     AIM V.I. Telecommunications and Technology Fund*
AIM V.I. Global Growth and Income Fund               AIM V.I. Value Fund
AIM V.I. Global Utilities Fund
</TABLE>

*Effective   May  1,   2000,   the  Fund   changed   its  name   from  AIM  V.I.
Telecommunications  Fund to AIM V.I.  Telecommunications  and Technology Fund to
reflect changes in its investment policies.  We have made a corresponding change
in the name of the Variable Sub-Account that invests in that Fund.

We (Glenbrook)  have filed a Statement of Additional  Information,  dated May 1,
2000,  with the Securities  and Exchange  Commission  ("SEC").  It contains more
information  about the Contract and is incorporated  herein by reference,  which
means it is legally a part of this prospectus.  Its table of contents appears on
page C-1 of this  prospectus.  For a free copy,  please  write or call us at the
address   or   telephone   number   above,   or  go  to  the   SEC's   Web  site
(http://www.sec.gov).  You can find other  information  and documents  about us,
including  documents that are legally part of this prospectus,  at the SEC's Web
site.

                                      The Securities and Exchange Commission has
                                      not approved or disapproved the securities
                                      described in this  prospectus,  nor has it
                                      passed on the  accuracy or the adequacy of
                                      this  prospectus.  Anyone  who  tells  you
                                      otherwise is committing a federal crime.

          IMPORTANT                   The Contracts may be distributed through
           NOTICES                    broker-dealers  that have  relationships
                                      with banks or other financial institutions
                                      or by employees of such banks.  However,
                                      the Contracts  are not deposits, or
                                      obligations of, or guaranteed
                                      by  such   institutions   or  any  federal
                                      regulatory   agency.   Investment  in  the
                                      Contracts   involves   investment   risks,
                                      including possible loss of principal.

                                      The Contracts are not FDIC insured.

<PAGE>

<TABLE>
<CAPTION>
<S>                                                                                                     <C>
TABLE OF CONTENTS

                                                                                                        Page

Overview                       Important Terms.......................................................   3
                               The Contract At A Glance..............................................   4
                               How the Contract Works................................................   6
                               Expense Table.........................................................   7
                               Financial Information.................................................  10

Contract Features              The Contract..........................................................  11
                               Purchases.............................................................  13
                               Contract Value........................................................  14
                               Investment Alternatives...............................................  15
                                          The Variable Sub-Accounts..................................  15
                                          The Fixed Account Options..................................  16
                                          Transfers..................................................  19
                               Expenses..............................................................  22
                               Access To Your Money..................................................  25
                               Income Payments.......................................................  27
                               Death Benefits........................................................  30

Other Information              More Information:
                                          Glenbrook..................................................  33
                                          The Variable Account.......................................  33
                                          The Funds..................................................  34
                                          The Contract...............................................  34
                                          Qualified Plans............................................  35
                                          Legal Matters..............................................  35
                                          Year 2000..................................................  35
                               Taxes.................................................................  37
                               Annual Reports and Other Documents....................................  40
                               Performance Information...............................................  41
                               Experts...............................................................  42
                               Appendix A--Accumulation Unit Values..................................   A-1
                               Appendix B - Market Value Adjustment Example..........................   B-1
                               Statement of Additional Information Table of Contents.................   C-1



</TABLE>

<PAGE>

IMPORTANT TERMS

This  prospectus  uses a number of important  terms that you may not be familiar
with.  The index below  identifies  the page that describes each term. The first
use of each term in this prospectus appears in highlights.
<TABLE>
<CAPTION>
<S>                                                                                         <C>

                                                                                            Page

           Accumulation Phase.............................................................  6
           Accumulation Unit..............................................................10,14
           Accumulation Unit Value........................................................10,14
           Annuitant...................................................................... 11
           Automatic Additions Program.................................................... 13
           Automatic Fund Rebalancing Program............................................. 20
           Beneficiary.................................................................... 11
           Cancellation Period............................................................  4
           *Contract......................................................................6,11
           Contract Anniversary...........................................................  5
           Contract Owner ("You").........................................................  6
           Contract Value................................................................. 14
           Contract Year..................................................................  4
           Death Benefit Anniversary...................................................... 30
           Dollar Cost Averaging Program.................................................. 20
           Due Proof of Death............................................................. 31
           Enhanced Death Benefit Rider................................................... 30
           Enhanced Death and Income Benefit Combination Rider............................ 31
           Fixed Account Options..........................................................16-18
           Free Withdrawal Amount......................................................... 23
           Funds.......................................................................... 15
           Glenbrook ("We")...............................................................1,33
           Guarantee Period............................................................... 16
           Income Plan....................................................................6,27
           Investment Alternatives........................................................  1
           Issue Date.....................................................................  6
           Market Value Adjustment........................................................ 18
           Payout Phase...................................................................  6
           Payout Start Date.............................................................. 27
           Qualified Contract.............................................................  4
           Right to Cancel................................................................ 13
           SEC............................................................................  1
           Settlement Value............................................................... 30
           Systematic Withdrawal Program.................................................. 25
           Treasury Rate.................................................................. 18
           Valuation Date................................................................. 13
           Variable Account...............................................................1,33
           Variable Sub-Account...........................................................1,15

           * If you purchase a group  Contract,  we will issue you a certificate
           that  represents your ownership and that summarizes the provisions of
           the Contract.  References to  "Contract" in this  prospectus  include
           certificates,  unless  the  context  requires  otherwise.  In certain
           states, the Contract is available only as a group Contract.
</TABLE>

<PAGE>

THE CONTRACT AT A GLANCE

The following is a snapshot of the  Contract.  Please read the remainder of this
prospectus for more information.

<TABLE>
<CAPTION>

<S>                                           <C>
Flexible Payments                             You can purchase a Contract  with as little
                                              as $5,000 ($2,000 for "Qualified
                                              Contracts," which are Contracts issued with
                                              qualified plans).  You can    add toyour
                                              Contract as often and as much as you like,
                                              but each payment must be at least $500
                                              ($100 for automatic purchase payments to
                                              the variable investment options).  You must
                                              maintain a minimum account size of $1,000.

Right to Cancel                               You may cancel your Contract
                                              within 20 days of receipt or any longer
                                              period as your state may require
                                              ("Cancellation Period"). Upon cancellation
                                              we will return your purchase payments
                                              adjusted, to the extent federal or state law permits,
                                              to reflect the investment experience of any
                                              amounts allocated to the Variable Account.

Expenses                                      You will bear the following expenses:

                                              o  Total  Variable  Account annual
                                                 fees  equal to 1.10% of average
                                                 daily net assets  (1.30% if you
                                                 select   the   Enhanced   Death
                                                 Benefit  Rider and 1.50% if you
                                                 select the  Enhanced  Death and
                                                 Income   Benefit    Combination
                                                 Rider)

                                              o  Annual contract maintenance charge of
                                                 $35 (with certain exceptions)
                                              o  Withdrawal charges ranging from
                                                 0% to 7% of  payment  withdrawn
                                                 (with certain exceptions)

                                              o  Transfer fee of $10 after 12th transfer
                                                 in any Contract Year (fee currently
                                                 waived)
                                              o  State premium tax (if your state
                                                 imposes one)

                                              In   addition,   each   Fund  pays
                                              expenses   that  you   will   bear
                                              indirectly  if  you  invest  in  a
                                              Variable Sub-Account.

Investment
Alternatives                                  The Contract  offers 20 investment
                                              alternatives including:

                                              o  3 Fixed Account Options (which credit
                                                 interest at rates we guarantee)
                                              o  17    Variable     Sub-Accounts
                                                 investing  in  Funds   offering
                                                 professional  money  management
                                                 by A I M Advisors, Inc.

                                              To find out  current  rates  being
                                              paid on the Fixed Account Options,
                                              or to find  out  how the  Variable
                                              Sub-Accounts    have    performed,
                                              please call us at 1-800-776-6978.

<PAGE>

Special Services                              For your convenience,  we
                                              offer these special services:

                                              o  Automatic Fund Rebalancing Program
                                              o  Automatic Additions Program
                                              o  Dollar Cost Averaging Program
                                              o  Systematic Withdrawal Program

Income Payments                                You  can  choose  fixed
                                               income payments,  variable income
                                               payments, or a combination of the
                                               two.  You can receive your income
                                               payments in one of the  following
                                               ways:

                                               o  life income with guaranteed payments
                                               o  a joint and survivor life income with
                                                  guaranteed payments
                                               o  guaranteed payments for a specified
                                                  period (5 to 30 years)

Death Benefits                                 If you die before the Payout Start Date,
                                               we will pay the death benefit described
                                               in the Contract.  We also offer an
                                               Enhanced Death Benefit Rider and an
                                               Enhanced Death and Income Benefit
                                               Combination Rider.

Transfers                                      Before the Payout Start Date, you
                                               may transfer your Contract  value
                                               ("Contract   Value")   among  the
                                               investment   alternatives,   with
                                               certain restrictions.  No minimum
                                               applies   to   the   amount   you
                                               transfer.

                                               We do not currently  impose a fee
                                               upon   transfers.   However,   we
                                               reserve  the right to charge  $10
                                               per   transfer   after  the  12th
                                               transfer in each "Contract Year,"
                                               which we measure from the date we
                                               issue your contract or a Contract
                                               anniversary ("Contract
                                               Anniversary").

Withdrawals                                    You may  withdraw  some  or all of your  Contract
                                               Value at any time during the Accumulation  Phase.
                                               In general,  you must  withdraw at least $50 at a
                                               time.  A 10% federal tax penalty may apply if you
                                               withdraw  before  you  are 59 1/2  years  old.  A
                                               withdrawal  charge  and Market  Value  Adjustment
                                               also may apply. Full or partial withdrawals are
                                               available under limited circumstances on or after
                                               the Payout Start Date.
</TABLE>


<PAGE>

HOW THE CONTRACT WORKS The Contract basically works in two ways.


First, the Contract can help you (we assume you are the Contract owner) save for
retirement because you can invest in up to 20 investment alternatives and pay no
federal income taxes on any earnings until you withdraw them. You do this during
what we call the "Accumulation  Phase" of the Contract.  The Accumulation  Phase
begins on the date we issue your  Contract (we call that date the "Issue  Date")
and continues until the Payout Start Date, which is the date we apply your money
to provide income payments. During the Accumulation Phase, you may allocate your
purchase payments to any combination of the Variable  Sub-Accounts  and/or Fixed
Account  Options.  If you invest in the Fixed Account  Options,  you will earn a
fixed rate of interest that we declare periodically. If you invest in any of the
Variable Sub-Accounts,  your investment return will vary up or down depending on
the performance of the corresponding Funds.


Second,  the Contract can help you plan for retirement because you can use it to
receive  retirement  income for life  and/or for a pre-set  number of years,  by
selecting  one of the income  payment  options  (we call these  "Income  Plans")
described  on page 27.  You  receive  income  payments  during  what we call the
"Payout  Phase" of the  Contract,  which  begins on the  Payout  Start  Date and
continues until we make the last payment required by the Income Plan you select.
During the  Payout  Phase,  if you  select a fixed  income  payment  option,  we
guarantee the amount of your payments,  which will remain fixed. If you select a
variable  income  payment  option,   based  on  one  or  more  of  the  Variable
Sub-Accounts,  the amount of your payments will vary up or down depending on the
performance of the corresponding Funds. The amount of money you accumulate under
your  Contract  during the  Accumulation  Phase and apply to an Income Plan will
determine the amount of your income payments during the Payout Phase.

The timeline below illustrates how you might use your Contract.
<TABLE>
<CAPTION>
<S>                <C>                               <C>               <C>                 <C>               <C>
Issue                                                Payout Start
Date               Accumulation Phase                    Date          Payout Phase

- ---------------------------------------------------------------------------------------------------------------------
 ^                           ^                             ^                                 ^
 |                           |                             |                                 |
                   You save for retirement                                                                       -->

You buy                                          You elect to receive                  You can receive      Or you can
a Contract                                       income payments or receive            income payments      receive income
                                                 a lump sum payment                    for a set period     payments for life


</TABLE>
As the Contract owner, you exercise all of the rights and privileges provided by
the Contract. If you die, any surviving Contract owner, or if there is none, the
Beneficiary  will exercise the rights and  privileges  provided by the Contract.
See "The  Contract."  In addition,  if you die before the Payout Start Date,  we
will pay a death benefit to any surviving  Contract  owner, or if there is none,
to your Beneficiary. See "Death Benefits."

Please call us at 1-800-776-6978 if you have any question about how the Contract
works.

<PAGE>

EXPENSE TABLE
- ----------------------------------------------------------------------------
The table below lists the  expenses  that you will bear  directly or  indirectly
when you buy a Contract.  The table and the examples  that follow do not reflect
premium taxes imposed by the state where you reside.  For more information about
Variable Account  expenses,  see "Expenses,"  below. For more information  about
Fund expenses, please refer to the accompanying prospectus for the Funds.
- ----------------------------------------------------------------------------
CONTRACT OWNER TRANSACTION EXPENSES

Withdrawal Charge (as a percentage of purchase payments)*

Number of Complete Years Since We Received the Purchase

Payment Being Withdrawn:    0      1     2       3      4      5       6     7+

Applicable Charge:          7%      7%    6%     6%     5%      4%     3%    0%

Annual Contract Maintenance Charge.................................... $35.00**
Transfer Fee........................ ................................. $10.00***

    * Each Contract Year, you may withdraw up to 15% of the Contract Value as of
    the beginning of the Contract Year without  incurring a withdrawal charge or
    Market Value Adjustment.

    ** We will waive this charge in certain cases.  See "Expenses."

    ***Applies  solely  to the  thirteenth  and  subsequent  transfers  within a
    Contract  Year,  excluding  transfers  due  to  dollar  cost  averaging  and
    automatic fund rebalancing. We are currently waiving the transfer fee.
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------
VARIABLE  ACCOUNT  ANNUAL  EXPENSES
(as a percentage  of average  daily net asset value deducted from each Variable Sub-Account)

<S>                                                                                      <C>
Mortality and Expense Risk Charge.........................................................1.00%*
Administrative Expense Charge.............................................................0.10%
Total Variable Account Annual Expenses....................................................1.10%
- --------------------------------------
</TABLE>

    * If you select the Enhanced Death Benefit Rider,  the mortality and expense
    risk  charge  will be equal to 1.20% of your  Contract's  average  daily net
    assets in the Variable Account.  If you select the Enhanced Death and Income
    Benefit  Combination  Rider,  the  mortality and expense risk charge will be
    equal to 1.40% of the daily net assets of the Variable Account.
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
FUND ANNUAL  EXPENSES  (After  Voluntary  Reductions and  Reimbursements)
(as a percentage of Fund average daily net assets)(1)


                                                          Management         Other             Total Annual
Fund                                                      Fee                Expenses          Fund Expenses

<S>                             <C>                        <C>                   <C>                 <C>
AIM V.I. Aggressive Growth Fund (2)                        0.00%                 1.19%               1.19%
AIM V.I. Balanced Fund (2)                                 0.65%                 0.56%               1.21%
AIM V.I. Blue Chip Fund                                    0.75%                 0.55%               1.30%
AIM V.I. Capital Appreciation Fund                         0.62%                 0.11%               0.73%
AIM V.I. Capital Development Fund (2)                      0.00%                 1.23%               1.23%
AIM V.I. Dent Demographic Trends Fund                      0.85%                 0.55%               1.40%
AIM V.I. Diversified Income Fund                           0.60%                 0.23%               0.83%
AIM V.I. Global Growth and Income Fund(2)                  0.97%                 0.37%               1.34%
AIM V.I. Global Utilities Fund                             0.65%                 0.49%               1.14%
AIM V.I. Government Securities Fund                        0.50%                 0.40%               0.90%
AIM V.I. Growth Fund                                       0.63%                 0.10%               0.73%
AIM V.I. Growth and Income Fund                            0.61%                 0.16%               0.77%
AIM V.I. High Yield Fund(2)                                0.35%                 0.79%               1.14%
AIM V.I. International Equity Fund                         0.75%                 0.22%               0.97%
AIM V.I. Money Market Fund                                 0.40%                 0.20%               0.60%
AIM V.I. Telecommunications and Technology Fund            1.00%                 0.27%               1.27%
AIM V.I. Value Fund                                        0.61%                 0.15%               0.76%
</TABLE>

(1)  Figures shown in the table are for the year ended December 31, 1999, except
     for the AIM V.I.  Blue Chip,  Dent  Demographic  Trends,  Global Growth and
     Income,  and   Telecommunications  and  Technology  Funds  which  commenced
     operations  on December 29, 1999,  December 29, 1999,  October 15, 1999 and
     October 15, 1999  respectively.  For these Funds, the management fee, other
     expenses  and total annual fund  operating  expenses are based on estimates
     for the Funds' first full fiscal year.

(2)  Absent  voluntary   reductions  and   reimbursements   for  certain  Funds,
     management fees, other expenses,  and total annual fund expenses  expressed
     as a  percentage  of  average  net  assets of the Funds  would have been as
     follows:

<TABLE>
<CAPTION>

                                                    Management       Other      Total Annual
Fund                                                    Fee        Expenses     Fund Expenses
<S>                                                    <C>           <C>          <C>
AIM V.I. Aggressive Growth Fund                        0.80%         1.62%        2.42%
AIM V.I. Balanced Fund                                 0.75%         0.56%        1.31%
AIM V.I. Capital Development Fund                      0.75%         2.67%        3.42%
AIM V.I. Global Growth and Income Fund                 1.00%         0.37%        1.37%
AIM V.I. High Yield Fund                               0.63%         0.79%        1.42%

</TABLE>

EXAMPLE 1

The  example  below  shows the  dollar  amount of  expenses  that you would bear
directly or indirectly if you:

o          invested $1,000 in a Variable Sub-Account,
o          earned a 5% annual return on your investment, and
o          surrendered your Contract, or you began receiving income payments
           for a specified period of less than 120 months, at the end of each
           time period.
o          elect the Enhanced Death and Income Benefit Combination Rider

The example does not include any taxes or tax  penalties  you may be required to
pay if you surrender your Contract.
<TABLE>
<CAPTION>

<S>                                             <C>                 <C>                 <C>                  <C>
SUB-ACCOUNT                                     1 YEAR              3 YEARS             5 YEARS              10 YEARS


AIM V.I. Aggressive Growth Fund                  $101               $176                  $243                $425
AIM V.I. Balanced Fund                           $90                $144                  $191                $322
AIM V.I.  Blue Chip Fund                         $90                $144                  $190                $321
AIM V.I. Capital Appreciation Fund               $85                $127                  $162                $264
AIM V.I. Capital Development Fund                $110               $204                  $288                $508
AIM V.I. Dent Demographic Trends Fund            $91                $147                  $195                $331
AIM V.I. Diversified Income Fund                 $86                $130                  $167                $274
AIM V.I. Global Growth and Income Fund           $91                $146                  $194                $328
AIM V.I. Global Utilities Fund                   $88                $139                  $182                $306
AIM V.I. Government Securities Fund              $86                $132                  $171                $281
AIM V.I. Growth Fund                             $85                $127                  $162                $264
AIM V.I. Growth and Income Fund                  $85                $129                  $164                $268
AIM V.I. High Yield Fund                         $91                $147                  $196                $333
AIM V.I. International Equity Fund               $87                $134                  $174                $289
AIM V.I. Money Market Fund                       $83                $124                  $156                $250
AIM V.I. Telecommunications and Technology Fund  $90                $143                  $189                $318
AIM V.I. Value Fund                              $85                $128                  $164                $267


</TABLE>

EXAMPLE 2

Same  assumptions  as Example 1 above,  except that you decided not to surrender
your Contract,  or you began receiving  income payments (for at least 120 months
if under an Income Plan for a specified period), at the end of each period.
<TABLE>
<CAPTION>
<S>                                             <C>                 <C>                 <C>                  <C>
SUB-ACCOUNT                                     1 YEAR              3 YEARS             5 YEARS              10 YEARS


AIM V.I. Aggressive Growth Fund                  $41                $123                  $208                $425
AIM V.I. Balanced Fund                           $29                 $90                  $153                $322
AIM V.I. Blue Chip Fund                          $29                 $90                  $153                $321
AIM V.I. Capital Appreciation Fund               $23                 $72                  $124                $264
AIM V.I. Capital Development Fund                $51                $153                  $255                $508
AIM V.I. Dent Demographic Trends Fund            $30                 $93                  $158                $331
AIM V.I. Diversified Income Fund                 $24                 $75                  $129                $274
AIM V.I. Global Growth and Income Fund           $30                 $92                  $156                $328
AIM V.I. Global Utilities Fund                   $28                 $85                  $144                $306
AIM V.I. Government Securities Fund              $25                 $77                  $132                $281
AIM V.I. Growth Fund                             $23                 $72                  $124                $264
AIM V.I. Growth and Income Fund                  $24                 $73                  $126                $268
AIM V.I. High Yield Fund                         $31                 $93                  $159                $333
AIM V.I. International Equity Fund               $26                 $80                  $136                $289
AIM V.I. Money Market Fund                       $22                 $68                  $117                $250
AIM V.I. Telecommunications and Technology Fund  $29                 $89                  $151                $318
AIM V.I. Value Fund                              $24                 $73                  $125                $267
</TABLE>


Please  remember  that you are looking at examples and not a  representation  of
past or future expenses. Your actual expenses may be lower or greater than those
shown  above.  Similarly,  your rate of return may be lower or greater  than 5%,
which is not guaranteed.  The above examples assume the election of the Enhanced
Death and Income  Benefit  Combination  Rider with a mortality  and expense risk
charge of 1.40%.  If that option were not  elected,  the example  figures  shown
above would be slightly lower. To reflect the contract maintenance charge in the
examples,  we estimated an  equivalent  percentage  charge,  based on an assumed
average Contract size of $57,476.

<PAGE>

FINANCIAL INFORMATION
- ------------------------------------------------------------------------------
To measure the value of your investment in the Variable  Sub-Accounts during the
Accumulation  Phase, we use a unit of measure we call the  "Accumulation  Unit."
Each Variable  Sub-Account  has a separate value for its  Accumulation  Units we
call "Accumulation Unit Value." Accumulation Unit Value is analogous to, but not
the same as, the share price of a mutual fund.

Attached as Appendix A to this  prospectus are tables  showing the  Accumulation
Unit Values of each Variable Sub-Account since its inception. To obtain a fuller
picture of each Variable  Sub-Account's  finances,  please refer to the Variable
Account's  financial   statements  contained  in  the  Statement  of  Additional
Information.  The financial statements of Glenbrook also appear in the Statement
of Additional Information.

<PAGE>

THE CONTRACT
- -------------------------------------------------------------------------------
CONTRACT OWNER

The AIM  Lifetime  Plus(SM) II Variable  Annuity is a contract  between you, the
Contract owner, and Glenbrook,  a life insurance company. As the Contract owner,
you  may  exercise  all of the  rights  and  privileges  provided  to you by the
Contract.  That  means  it is up to you to  select  or  change  (to  the  extent
permitted):

o    the investment alternatives during the Accumulation and Payout Phases,

o    the amount and timing of your purchase payments and withdrawals,

o    the  programs  you want to use to invest or  withdraw  money,  o the income
     payment plan you want to use to receive retirement income,

o    the  Annuitant  (either  yourself or someone else) on whose life the income
     payments will be based,


o   the  Beneficiary  or  Beneficiaries  who will receive the benefits  that the
    Contract provides when the last surviving  Contract Owner or Annuitant dies,
    and


o   any other rights that the Contract provides.


If you die,  any  surviving  Contract  owner or, if none,  the  Beneficiary  may
exercise the rights and privileges provided to them by the Contract.


The Contract cannot be jointly owned by both a non-natural  person and a natural
person.  At issue,  the maximum age of Contract Owner,  joint contract owner, or
annuitant if the owner is a non-natural person, cannot exceed age 90.


You can use the Contract with or without a qualified plan. A qualified plan is a
personal retirement savings plan, such as an IRA or tax-sheltered  annuity, that
meets the requirements of the Internal  Revenue Code.  Qualified plans may limit
or  modify  your  rights  and  privileges  under the  Contract.  We use the term
"Qualified  Contract" to refer to a Contract  issued with a qualified  plan. See
"Qualified Plans" on page 35.

ANNUITANT


The Annuitant is the  individual  whose age  determines  the latest Payout Start
Date and whose life determines the amount and duration of income payments (other
than under Income Plans with guaranteed  payments for a specified  period).  You
initially designate an Annuitant in your application. If the Contract owner is a
natural  person,  you may change the  Annuitant  prior to the Payout Start Date.
Prior to the Payout Start Date,  you may designate a joint  Annuitant,  who is a
second person on whose life income payments depend.  In our discretion,  we may
permit you to designate a joint Annuitant prior to the Payout Start Date.


If the Annuitant dies prior to the Payout Start Date, the new Annuitant will be:

o          the youngest Contract owner if living, otherwise
o          the youngest Beneficiary.

BENEFICIARY

The  Beneficiary  is the person who may elect to  receive  the death  benefit or
become the new Contract owner if the sole  surviving  Contract owner dies before
the Payout  Start  Date.  If the sole  surviving  Contract  owner dies after the
Payout Start Date, the Beneficiary  will receive any guaranteed  income payments
scheduled to continue.

You may name one or more  Beneficiaries  when you apply for a Contract.  You may
change  or add  Beneficiaries  at any  time by  writing  to us  unless  you have
designated an irrevocable  Beneficiary.  We will provide a change of Beneficiary
form to be signed and filed with us. Any change  will be  effective  at the time
you sign the  written  notice,  whether or not the  Annuitant  is living when we
receive  the  notice.   Until  we  receive  your  written  notice  to  change  a
Beneficiary,  we are entitled to rely on the most recent Beneficiary information
in our files.  We will not be liable as to any payment or settlement  made prior
to  receiving  the  written  notice.  Accordingly,  if you wish to  change  your
Beneficiary, you should deliver your written notice to us promptly.

If you did not name a  Beneficiary  or if the  named  Beneficiary  is no  longer
living and there are no other surviving Beneficiaries,  the new Beneficiary will
be:

o     your spouse or, if he or she is no longer alive,
o     your surviving children equally, or if you have no surviving children,
o     your estate.

<PAGE>

If more than one  Beneficiary  survives  you, (or the  Annuitant if the Contract
owner is not a natural  person),  we will  divide the death  benefit  among your
Beneficiaries  according to your most recent written  instructions.  If you have
not  given us  written  instructions,  we will pay the  death  benefit  in equal
amounts to the surviving Beneficiaries.

MODIFICATION OF THE CONTRACT

Only a Glenbrook  officer may approve a change in or waive any  provision of the
Contract.  Any change or waiver must be in writing.  None of our agents have the
authority to change or waive the  provisions of the Contract.  We may not change
the terms of the Contract  without your consent,  except to conform the Contract
to  applicable  law or changes in the law.  If a  provision  of the  Contract is
inconsistent with state law, we will follow state law.

ASSIGNMENT


We will not honor an  assignment  of an interest in a Contract as  collateral or
security for a loan. However,  you may assign periodic income payments under the
Contract  prior to the Payout Start Date.  No  Beneficiary  may assign  benefits
under the  Contract  until they are due. We will not be bound by any  assignment
until the Assignor signs it and files it with us. We are not responsible for the
validity of any assignment. Federal law prohibits or restricts the assignment of
benefits  under many types of  retirement  plans and the terms of such plans may
themselves contain restrictions on assignments. An assignment may also result in
taxes or tax  penalties.  You should  consult with an attorney  before trying to
assign your Contract.


<PAGE>

PURCHASES
- ------------------------------------------------------------------------------
MINIMUM PURCHASE PAYMENTS

Your initial  purchase  payment must be at least $5,000  ($2,000 for a Qualified
Contract).  All subsequent  purchase payments must be $500 or more. You may make
purchase  payments at any time prior to the Payout  Start  Date.  We reserve the
right to limit the maximum amount of purchase  payments we will accept.  We also
reserve the right to reject any application.


MINIMUM AND MAXIMUM ALLOWABLE AGE

You can  purchase a Contract if you are between the your state's age of majority
and 90. If the owner is a non-natural person, then the Annuitant must be between
the ages of 0 and 90.


AUTOMATIC ADDITIONS PROGRAM

You  may  make  additional  purchase  payments  of $100 or  more  per  month  by
automatically  transferring  money from your bank account.  Please  consult with
your sales representative for detailed information.

ALLOCATION OF PURCHASE PAYMENTS


At the time you apply for a  Contract,  you must  decide  how to  allocate  your
purchase payments among the investment alternatives.  The allocation you specify
on your  application will be effective  immediately.  All allocations must be in
whole  percents  that  total  100% or in  whole  dollars.  You can  change  your
allocations  by  notifying  us in  writing.  We  reserve  the right to limit the
availability of the investment alternatives.


We will allocate your purchase payments to the investment alternatives according
to your most  recent  instructions  on file  with us.  Unless  you  notify us in
writing otherwise,  we will allocate  subsequent  purchase payments according to
the allocation for the previous purchase  payment.  We will effect any change in
allocation  instructions  at the time we receive written notice of the change in
good order.

We will credit the initial  purchase  payment that  accompanies  your  completed
application to your Contract within 2 business days after we receive the payment
at our  headquarters.  If your  application  is  incomplete,  we will ask you to
complete your  application  within 5 business days. If you do so, we will credit
your  initial  purchase  payment to your  Contract  within  that 5 business  day
period.  If you do not, we will return your purchase payment at the end of the 5
business day period unless you expressly  allow us to hold it until you complete
the application.  We will credit subsequent purchase payments to the Contract at
the close of the business  day on which we receive the  purchase  payment at our
headquarters.


We use the term  "business  day" to refer to each day Monday through Friday that
the New York Stock Exchange is open for business. We also refer to these days as
"Valuation  Dates." Our  business  day closes  when the New York Stock  Exchange
closes,  usually 4 p.m.  Eastern Time (3 p.m.  Central Time). If we receive your
purchase payment after 3 p.m. Central Time on any Valuation Date, we will credit
your purchase  payment using the  Accumulation  Unit Values computed on the next
Valuation Date.


RIGHT TO CANCEL

You may cancel  your  Contract  by  returning  it to us within the  Cancellation
Period,  which is the 20 day period  after you  receive  the  Contract,  or such
longer period that your state may require. You may return it by delivering it or
mailing  it to us.  If  you  exercise  this  "Right  to  Cancel,"  the  Contract
terminates  and we will  pay you  the  full  amount  of your  purchase  payments
allocated  to the Fixed  Account.  We also will  return your  purchase  payments
allocated to the Variable Account  adjusted,  to the extent federal or state law
permits,  to  reflect  investment  gain or loss that  occurred  from the date of
allocation  through  the date of  cancellation.  Some  states may  require us to
return a greater amount to you.

<PAGE>

CONTRACT VALUE
- ------------------------------------------------------------------------------


On the  Issue  Date,  your  Contract  Value is equal  to your  initial  purchase
payment.  Thereafter,  your Contract  Value at any time during the  Accumulation
Phase  is  equal  to the sum of the  value  of your  Accumulation  Units  in the
Variable Sub-Accounts you have selected,  plus the value of your interest in the
Fixed Account Options.


ACCUMULATION UNITS

To determine the number of  Accumulation  Units of each Variable  Sub-Account to
credit to your  Contract,  we divide (i) the amount of the  purchase  payment or
transfer you have allocated to a Variable  Sub-Account by (ii) the  Accumulation
Unit Value of that  Variable  Sub-Account  next  computed  after we receive your
payment or  transfer.  For  example,  if we receive a $10,000  purchase  payment
allocated to a Variable  Sub-Account  when the  Accumulation  Unit Value for the
Sub-Account  is $10, we would credit 1,000  Accumulation  Units of that Variable
Sub-Account to your Contract.

ACCUMULATION UNIT VALUE

As a general matter,  the Accumulation Unit Value for each Variable  Sub-Account
will rise or fall to reflect:

o   changes in the share price of the Fund in which the Variable Sub-Account
    invests, and

o   the deduction of amounts  reflecting  the mortality and expense risk charge,
    administrative expense charge, and any provision for taxes that have accrued
    since we last calculated the Accumulation Unit Value.


We determine contract maintenance charges, withdrawal charges, and transfer fees
(currently  waived)  separately  for  each  Contract.  They  do not  affect  the
Accumulation Unit Value. Instead, we obtain payment of those charges and fees by
redeeming  Accumulation  Units. For details on how we compute  Accumulation Unit
Value, please refer to the Statement of Additional Information.


We determine a separate Accumulation Unit Value for each Variable Sub-Account on
each  Valuation  Date.  We also  determine a separate set of  Accumulation  Unit
Values  reflecting the cost of the Enhanced Death Benefit Rider and the Enhanced
Death and Income Benefit Combination Rider described on pages ___ and ___ below.

YOU  SHOULD  REFER  TO THE  PROSPECTUS  FOR  THE  FUNDS  THAT  ACCOMPANIES  THIS
PROSPECTUS  FOR A DESCRIPTION  OF HOW THE ASSETS OF EACH FUND ARE VALUED,  SINCE
THAT  DETERMINATION  DIRECTLY  BEARS  ON  THE  ACCUMULATION  UNIT  VALUE  OF THE
CORRESPONDING VARIABLE SUB-ACCOUNT AND, THEREFORE, YOUR CONTRACT VALUE.

<PAGE>

INVESTMENT ALTERNATIVES:  The Variable Sub-Accounts
- ------------------------------------------------------------------------------
You may allocate your purchase payments to up to 17 Variable Sub-Accounts.  Each
Variable  Sub-Account  invests in the shares of a corresponding  Fund. Each Fund
has its own investment  objective(s) and policies. We briefly describe the Funds
below.

For more  complete  information  about each Fund,  including  expenses and risks
associated with the Fund,  please refer to the  accompanying  prospectus for the
Fund. You should carefully review the Fund prospectus before allocating  amounts
to the Variable  Sub-Accounts.  A I M Advisors,  Inc.  serves as the  investment
advisor to each Fund.

<TABLE>
<CAPTION>
<S>                                          <C>
Fund:                                        Each Fund Seeks*:

AIM V.I. Aggressive Growth Fund**            Long-term growth of capital

AIM V.I. Balanced Fund                       As high a total return as possible, consistent with preservation of capital


AIM V.I. Blue Chip Fund                      Long-term growth of capital with a secondary objective of current income


AIM V.I. Capital Appreciation Fund           Growth of capital

AIM V.I. Capital Development Fund            Long-term growth of capital


AIM V. I. Dent Demographic Trends Fund       Long-term growth of capital together


AIM V.I. Diversified Income Fund             High level of current income


AIM V.I. Global Growth and Income Fund       Long-term growth of capital together with current income


AIM V.I. Global Utilities Fund               High total return

AIM V.I. Government Securities Fund          High level of current income consistent with reasonable concern for
                                             safety of principal

AIM V.I. Growth Fund                         Growth of capital

AIM V.I. Growth and Income Fund              Growth of capital with a secondary objective of current income

AIM V.I. High Yield Fund                     High level of current income

AIM V.I. International Equity Fund           Long-term growth of capital

AIM V.I. Money Market Fund                   As high a level of current income as is consistent with the preservation
                                             of capital and liquidity

AIM V.I. Telecommunications
and Technology Fund                          Long-term growth of capital


AIM V.I. Value Fund                          Long-term growth of capital with income as a secondary objective
</TABLE>



    * A Fund's investment  objective may be changed by the Fund's Board of
    Trustees without shareholder approval.


    ** Due to the sometime  limited  availability  of common stocks of small-cap
    companies that meet the investment  criteria for AIM V.I.  Aggressive Growth
    Fund, the Fund may periodically suspend or limit the offering of its shares.
    The Fund will be closed to new  participants  when Fund  assets  reach  $200
    million. If the Fund is closed, Contract owners maintaining an allocation of
    Contract  Value in that Fund will  nevertheless  be  permitted  to  allocate
    additional purchase payments to the Fund.

Amounts  you  allocate to Variable  Sub-Accounts  may grow in value,  decline in
value, or grow less than you expect,  depending on the investment performance of
the Funds in which those Variable  Sub-Accounts  invest. You bear the investment
risk that the Funds might not meet their  investment  objectives.  Shares of the
Funds are not deposits, or obligations of, or guaranteed or endorsed by any bank
and are not insured by the Federal Deposit  Insurance  Corporation,  the Federal
Reserve Board or any other agency.

<PAGE>

INVESTMENT ALTERNATIVES: The Fixed Account Options
- -----------------------------------------------------------------------------
You may  allocate  all or a  portion  of your  purchase  payments  to the  Fixed
Account.  You may choose from among 3 Fixed Account Options including two dollar
cost  averaging  options  and the  option  to  invest  in one or more  Guarantee
Periods.  The Fixed Account  Options may not be available in all states.  Please
consult  with your  sales  representative  for  current  information.  The Fixed
Account  supports  our  insurance  and annuity  obligations.  The Fixed  Account
consists of our general assets other than those in segregated asset accounts. We
have sole  discretion  to invest  the  assets of the Fixed  Account,  subject to
applicable  law.  Any money you  allocate  to a Fixed  Account  Option  does not
entitle you to share in the investment experience of the Fixed Account.

DOLLAR COST AVERAGING OPTIONS

You may establish a Dollar Cost Averaging  Program,  as described on page 20, by
allocating  purchase  payments to the Fixed Account  either for 6 months (the "6
Month Dollar Cost Averaging Option") or for 12 months (the "12 Month Dollar Cost
Averaging Option"). Your purchase payments will earn interest for the period you
select  at the  current  rates in effect  at the time of  allocation.  Rates may
differ from those available for the Guarantee Periods described below.


You  must  transfer  all of your  money  out of the 6 or 12  Month  Dollar  Cost
Averaging Options to other investment alternatives in equal monthly installments
beginning within 30 days of allocation.  The number of monthly installments must
be no more than 6 for the 6 Month Dollar Cost Averaging Option, and no more than
12 for the 12 Month Dollar Cost Averaging Option. At the end of the applicable 6
or 12 month period,  we will transfer any remaining amounts in the 6 or 12 Month
Dollar  Cost  Averaging  Options  to  the  other  investment   alternatives  you
designated.  Transfers out of the 6 or 12 Month Dollar Cost Averaging Options do
not count towards the 12 transfers you can make without paying a transfer fee.

If we  do  not  receive  allocation  instructions  from  you,  the  payment  and
associated interest will be transferred to Money Market Variable  Sub-Account in
equal monthly installments.


You may not transfer funds from other investment alternatives to either the 6 or
12 Month Dollar Cost Averaging Options.

The 6 or 12 Month  Dollar Cost  Averaging  Options may not be  available in your
state.

GUARANTEE PERIODS

Each  payment or transfer  allocated to a Guarantee  Period earns  interest at a
specified  rate that we guarantee for a period of years.  Guarantee  Periods may
range from 1 to 10 years. We are currently  offering  Guarantee Periods of 1, 3,
5, 7, and 10 years in length.  In the future we may offer  Guarantee  Periods of
different lengths or stop offering some Guarantee Periods.


You select a  Guarantee  Period for each  purchase  or  transfer.  If you do not
select a Guarantee  Period,  we will assign the same  period(s) you selected for
your most recent purchase payment.


We reserve the right to limit the number of  additional  purchase  payments that
you may allocate to this Option.

Interest Rates We will tell you what interest rates and Guarantee Periods we are
offering at a  particular  time.  We may declare  different  interest  rates for
Guarantee  Periods of the same length that begin at different times. We will not
change the interest rate that we credit to a particular allocation until the end
of the relevant Guarantee Period.

We have no specific  formula for  determining  the rate of interest that we will
declare  initially or in the future.  We will set those  interest rates based on
investment returns available at the time of the determination.  In addition,  we
may consider  various  other factors in  determining  interest  rates  including
regulatory  and  tax  requirements,  our  sales  commission  and  administrative
expenses,  general economic trends,  and competitive  factors.  We determine the
interest rates to be declared in our sole discretion. We can neither predict nor
guarantee  what those rates will be in the future.  For  current  interest  rate
information,   please  contact  your  sales   representative   or  Glenbrook  at
1-800-776-6978. The interest rate will never be less than the minimum guaranteed
rate stated in the Contract.

How We Credit Interest We will credit interest daily to each amount allocated to
a Guarantee  Period at a rate that  compounds to the effective  annual  interest
rate that we declared at the beginning of the applicable  Guarantee Period.  The
following  example  illustrates how a purchase payment  allocated to this Option
would grow, given an assumed Guarantee Period and annual interest rate:

Purchase Payment..................................$10,000
Guarantee Period...............................   5 years
Annual Interest Rate............................... 4.50%
<TABLE>
<CAPTION>

                                                                    END OF CONTRACT YEAR

<S>                                              <C>           <C>             <C>            <C>           <C>
                                                 YEAR 1        YEAR 2          YEAR 3         YEAR 4        YEAR 5

Beginning Contract Value                       $10,000.00
X (1 + Annual Interest Rate)                     X  1.045
                                               ----------
                                               $10,450.00


Contract Value at end of Contract Year                       $10,450.00
X (1 + Annual Interest Rate)                                   X  1.045
                                                             ----------
                                                             $10,920.25


<PAGE>

Contract Value at end of Contract Year                                      $10,920.25
X (1 + Annual Interest Rate)                                                   X 1.045
                                                                            ----------
                                                                            $11,411.66

Contract Value at end of Contract Year                                                    $11,411.66
X (1 + Annual Interest Rate)                                                                 X 1.045
                                                                                          ----------
                                                                                          $11,925.19

Contract Value at end of Contract Year                                                                     $11,925.19
X (1 + Annual Interest Rate)                                                                                 X  1.045
                                                                                                           ----------
Total Interest Credited During Guarantee Period = $2,461.82 ($12,461.82 - $10,000)                         $12,461.82
</TABLE>

This example assumes no withdrawals  during the entire 5 year Guarantee  Period.
If you  were  to  make a  partial  withdrawal,  you  may  be  required  to pay a
withdrawal  charge.  In  addition,  the amount  withdrawn  may be  increased  or
decreased by a Market Value  Adjustment that reflects  changes in interest rates
since the time you invested the amount withdrawn. The hypothetical interest rate
is for illustrative purposes only and is not intended to predict future interest
rates to be declared under the Contract.  Actual interest rates declared for any
given  Guarantee  Period may be more or less than shown  above but will never be
less than the guaranteed minimum rate stated in the Contract.

Renewals.  Prior to the end of each Guarantee  Period, we will mail you a notice
asking you what to do with your money,  including the accrued  interest.  During
the 30-day period after the end of the Guarantee Period, you may:

1)         take no  action.  We will  automatically  apply  your  money to a new
           Guarantee Period of the same length as the expired  Guarantee Period.
           The new Guarantee Period will begin on the day the previous Guarantee
           Period ends. The new interest rate will be our then current  declared
           rate for a Guarantee Period of that length; or

2)         instruct us to apply your money to one or more new Guarantee Periods
           of your choice.  The new Guarantee Period(s) will begin on the day
           the previous Guarantee Period ends. The new interest rate will be
           our then current declared rate for those Guarantee Periods; or

3)         instruct us to transfer all or a portion of your money to one or more
           Variable Sub-Accounts of the Variable Account.  We will effect the
           transfer on the day we receive your instructions.  We will not adjust
           the amount transferred to include a Market Value Adjustment; or

4)         withdraw all or a portion of your money. You may be required to pay a
           withdrawal  charge,  but we will not adjust the amount  withdrawn  to
           include a Market  Value  Adjustment.  You may also be required to pay
           premium taxes and withholding (if  applicable).  The amount withdrawn
           will  be  deemed  to have  been  withdrawn  on the  day the  previous
           Guarantee Period ends. Amounts not withdrawn will be applied to a new
           Guarantee Period of the same length as the previous Guarantee Period.
           The new Guarantee Period will begin on the day the previous Guarantee
           Period ends.

Market  Value  Adjustment.  All  withdrawals  in excess  of the Free  Withdrawal
Amount, and transfers from a Guarantee Period, other than those taken during the
30 day period after a Guarantee  Period  expires,  are subject to a Market Value
Adjustment.  A Market  Value  Adjustment  also may apply upon payment of a death
benefit (a Market Value Adjustment made upon payment of a death benefit would be
positive)  and when you apply  amounts  currently  invested in this option to an
Income  Plan  (unless  paid or  applied  during  the  30-day  period  after such
Guarantee  Period  expires).  We will not apply a Market Value  Adjustment  to a
withdrawal you make:


o within the Free  Withdrawal  Amount as  described on page ___,
o as part of the Dollar Cost Averaging Program,
o when exercising the confinement,  unemployment, widow  withdrawals  or
  terminal  illness  waivers,  or
o to satisfy IRS minimum distribution rules for the Contract.


We apply the Market Value  Adjustment to reflect  changes in interest rates from
the time  you  first  allocate  money to a  Guarantee  Period  to the time it is
removed from that Guarantee  Period. We calculate the Market Value Adjustment by
comparing the Treasury  Rate for a period equal to the  Guarantee  Period at its
inception to the Treasury Rate for a period equal to the  Guarantee  Period when
you remove your money.  "Treasury  Rate" means the U.S.  Treasury  Note Constant
Maturity Yield as reported in Federal Reserve Bulletin Release H.15.

The Market Value Adjustment may be positive or negative, depending on changes in
interest rates. As such, you bear the investment risk associated with changes in
interest  rates.  If interest  rates  increase  significantly,  the Market Value
Adjustment and any withdrawal charge,  premium taxes, and income tax withholding
(if applicable) could reduce the amount you receive upon full withdrawal of your
Contract Value to an amount that is less than the purchase payment plus interest
at the minimum guaranteed interest rate under the Contract.

Generally,  if the original  Treasury  Rate at the time you allocate  money to a
Guarantee  Period is higher than the applicable  current Treasury Rate, then the
Market  Value  Adjustment  will  result  in a  higher  amount  payable  to  you,
transferred, or applied to an Income Plan. Conversely, if the Treasury
<PAGE>

Rate  at the  time we  established  the  Guarantee  Period  is  lower  than  the
applicable  current  Treasury Rate, then the Market Value Adjustment will result
in a lower amount payable to you, transferred, or applied to an Income Plan.

For  example,  assume  that you  purchase a  Contract  and you select an initial
Guarantee  Period of 5 years and the 5 year  Treasury  Rate for that duration is
4.50%. Assume that at the end of 3 years, you make a partial withdrawal.  If, at
that later time,  the  current 5 year  Treasury  Rate is 4.20%,  then the Market
Value  Adjustment  will be  positive,  which will  result in an  increase in the
amount payable to you. Conversely, if the current 5 year Treasury Rate is 4.80%,
then the Market  Value  Adjustment  will be  negative,  which  will  result in a
decrease in the amount payable to you.

The formula for calculating  Market Value Adjustments is set forth in Appendix B
to this prospectus,  which also contains  additional examples of the application
of the Market Value Adjustment.

<PAGE>

INVESTMENT ALTERNATIVES:  Transfers
- ------------------------------------------------------------------------------
TRANSFERS DURING THE ACCUMULATION PHASE

During  the  Accumulation  Phase,  you may  transfer  Contract  Value  among the
investment  alternatives.  Transfers  are not  permitted  into the 6 or 12 Month
Dollar Cost Averaging  Options.  You may request  transfers in writing on a form
that we provide or by telephone  according  to the  procedure  described  below.
There is no minimum transfer amount. We currently do not assess, but reserve the
right to assess,  a $10  charge on each  transfer  in excess of 12 per  Contract
Year.  We treat  transfers  to or from more than one Fund on the same day as one
transfer.

We will process transfer  requests that we receive before 3:00 p.m. Central Time
on any Valuation Date using the Accumulation  Unit Values for that Date. We will
process  requests  completed  after 3:00 p.m.  on any  Valuation  Date using the
Accumulation Unit Values for the next Valuation Date. The Contract permits us to
defer  transfers from the Fixed Account Options for up to 6 months from the date
we receive  your  request.  If we decide to  postpone  transfers  from any Fixed
Account  Option  for 30 days or  more,  we will  pay  interest  as  required  by
applicable  law.  Any  interest  would be payable  from the date we receive  the
transfer request to the date we make the transfer.

If you  transfer an amount from a Guarantee  Period other than during the 30 day
period after a Guarantee Period expires, we will increase or decrease the amount
by a Market Value Adjustment.

We reserve the right to waive any transfer restrictions.

TRANSFERS DURING THE PAYOUT PHASE

During the Payout Phase, you may make transfers among the Variable  Sub-Accounts
to change the  relative  weighting of the  Variable  Sub-Accounts  on which your
variable  income  payments will be based.  In addition,  you will have a limited
ability  to make  transfers  from the  Variable  Sub-Accounts  to  increase  the
proportion of your income payments consisting of fixed income payments.  You may
not,  however,  convert any of your fixed income  payments into variable  income
payments.

You may not make any  transfers  for the first 6 months  after the Payout  Start
Date. Thereafter, you may make transfers among the Variable Sub-Accounts or make
transfers  from the Variable  Sub-Accounts  to increase the  proportion  of your
income payments  consisting of fixed income payments.  Your transfers must be at
least 6 months apart.

TELEPHONE TRANSFERS

You may make transfers by telephone by calling 1-800-776-6978.  The cut off time
for telephone transfer requests is 3:00 p.m. Central Time. In the event that the
New York Stock Exchange closes early, i.e., before 3:00 p.m. Central Time, or in
the event that the  Exchange  closes early for a period of time but then reopens
for trading on the same day, we will process  telephone  transfer requests as of
the close of the Exchange on that particular  day. We will not accept  telephone
requests  received at any telephone number other than the number that appears in
this paragraph or received after the close of trading on the Exchange.

We may suspend, modify or terminate the telephone transfer privilege at any time
without notice.

We use  procedures  that  we  believe  provide  reasonable  assurance  that  the
telephone transfers are genuine.  For example,  we tape telephone  conversations
with  persons  purporting  to  authorize   transfers  and  request   identifying
information.  Accordingly,  we disclaim any liability for losses  resulting from
allegedly  unauthorized  telephone  transfers.   However,  if  we  do  not  take
reasonable steps to help ensure that a telephone  authorization is valid, we may
be liable for such losses.

EXCESSIVE TRADING LIMITS

For  Contracts  issued on or after May 1, 1999,  we  reserve  the right to limit
transfers in any Contract Year, or to refuse any transfer request for a Contract
owner or certain Contract owners, if:

o    we believe, in our sole discretion, that excessive trading by such Contract
     owner or  owners,  or a  specific  transfer  request  or group of  transfer
     requests,  may have a detrimental effect on the Accumulation Unit Values of
     any Variable  Sub-Account or the share prices of the corresponding Funds or
     would be to the disadvantage of other Contract owners; or

o    we are informed by one or more of the corresponding  Funds that they intend
     to restrict the purchase or redemption of Fund shares  because of excessive
     trading or because  they  believe  that a  specific  transfer  or groups of
     transfers would have a detrimental effect on the prices of Fund shares.

We may apply the  restrictions  in any  manner  reasonably  designed  to prevent
transfers that we consider disadvantageous to other Contract owners.

<PAGE>

DOLLAR COST AVERAGING PROGRAM

You may make transfers  automatically through dollar cost averaging prior to the
Payout  Start  Date.  There  are three  different  ways to use the  Dollar  Cost
Averaging Program:

1)   You may allocate  purchase  payments to the Fixed  Account  Options for
the specific purpose of dollar cost averaging.

2) You may dollar cost  average out of any Variable  Sub-account  into any other
Variable Sub-account(s).

3) You may transfer interest credited from a Guarantee Period(s) to any Variable
Sub-account without application of a Market Value Adjustment.

We will not charge a transfer fee for  transfers  made under this  Program,  nor
will such  transfers  count  against the 12 transfers you can make each Contract
Year without paying a transfer fee.

The theory of dollar cost averaging is that if purchases of equal dollar amounts
are made at fluctuating prices, the aggregate average cost per unit will be less
than  the  average  of the unit  prices  on the same  purchase  dates.  However,
participation  in this Program does not assure you of a greater profit from your
purchases under the Program nor will it prevent or necessarily  reduce losses in
a declining market.

AUTOMATIC FUND REBALANCING PROGRAM

Once  you have  allocated  your  money  among  the  Variable  Sub-Accounts,  the
performance  of  each  Sub-Account  may  cause  a shift  in the  percentage  you
allocated to each  Sub-Account.  If you select our  Automatic  Fund  Rebalancing
Program,  we will  automatically  rebalance the Contract  Value in each Variable
Sub-Account  and  return it to the  desired  percentage  allocations.  Money you
allocate to the Fixed Account will not be included in the rebalancing.

We will rebalance your account each quarter according to your  instructions.  We
will transfer amounts among the Variable  Sub-Accounts to achieve the percentage
allocations  you  specify.  You  can  change  your  allocations  at any  time by
contacting us in writing or by telephone.  The new allocation  will be effective
with the  first  rebalancing  that  occurs  after we  receive  your  written  or
telephone  request.  We are not responsible for rebalancing that occurs prior to
receipt of proper notice of your request.

Example:

           Assume  that you want your  initial  purchase  payment  split among 2
           Variable Sub-Accounts. You want 40% to be in the AIM V.I. Diversified
           Income  Variable  Sub-Account  and 60% to be in the AIM  V.I.  Growth
           Variable  Sub-Account.  Over the next 2 months the bond  market  does
           very well while the stock market performs  poorly.  At the end of the
           first quarter,  the AIM V.I.  Diversified Income Variable Sub-Account
           now represents 50% of your holdings because of its increase in value.
           If you  choose to have your  holdings  rebalanced  quarterly,  on the
           first day of the next quarter we would sell some of your units in the
           AIM V.I. Diversified Income Variable Sub-Account and use the money to
           buy more units in the AIM V.I.  Growth  Variable  Sub-Account so that
           the percentage allocations would again be 40% and 60% respectively.

The Automatic Fund Rebalancing Program is available only during the Accumulation
Phase.  The  transfers  made  under  the  Program  do not count  towards  the 12
transfers  you can make without  paying a transfer fee, and are not subject to a
transfer fee.

Fund  rebalancing is consistent with  maintaining your allocation of investments
among market  segments,  although it is  accomplished  by reducing your Contract
Value allocated to the better performing segments.

<PAGE>

EXPENSES
- -------------------------------------------------------------------------------
As a Contract  owner,  you will bear,  directly or  indirectly,  the charges and
expenses described below.

CONTRACT MAINTENANCE CHARGE

During the Accumulation  Phase, on each Contract  Anniversary,  we will deduct a
$35  contract  maintenance  charge  from your  Contract  Value  invested in each
Variable  Sub-Account  in proportion to the amount  invested.  During the Payout
Phase, we will deduct the charge proportionately from each income payment.


The charge is to compensate us for the cost of  administering  the Contracts and
the Variable Account.  Maintenance costs include expenses we incur in processing
purchase payments;  keeping records;  processing death claims, cash withdrawals,
and policy changes; proxy statements;  calculating  Accumulation Unit Values and
income payments; and issuing reports to Contract owners and regulatory agencies.
We cannot increase the charge. We will waive this charge if:


o        total purchase payments equal $50,000 or more, or

o        all money is allocated  to the Fixed  Account  Options,  as of the
         Contract Anniversary.

After the Payout  Start  Date,  we will  waive this  charge if, as of the Payout
Start Date:


o        the Contract Value is $50,000 or more, or

o        all income payments are fixed amount income payments.

If you  surrender  your  Contract,  we will deduct a full  contract  maintenance
charge unless your Contract qualifies for a waiver.


MORTALITY AND EXPENSE RISK CHARGE


We deduct a mortality  and expense  risk charge daily at an annual rate of 1.00%
of the average daily net assets you have  invested in the Variable  Sub-Accounts
(1.20% if you select the Enhanced Death Benefit  Rider,  and 1.40% if you select
the Enhanced  Death and Income  Benefit  Combination  Rider).  The mortality and
expense  risk  charge  is for all the  insurance  benefits  available  with your
Contract (including our guarantee of annuity rates and the death benefits),  for
certain expenses of the Contract,  and for assuming the risk (expense risk) that
the  current  charges  will be  sufficient  in the  future  to cover the cost of
administering  the  Contract.   If  the  charges  under  the  Contract  are  not
sufficient,  then Glenbrook will bear the loss. We charge additional amounts for
the Enhanced Death Benefit and Enhanced  Death and Income  Benefit  Combination
Riders to compensate us for the additional risk that we accept by providing each
rider.


We guarantee the mortality and expense risk charge and we cannot increase it. We
assess the mortality and expense risk charge during both the Accumulation  Phase
and the Payout Phase.

ADMINISTRATIVE EXPENSE CHARGE

We deduct an  administrative  expense charge daily at an annual rate of 0.10% of
the average daily net assets you have invested in the Variable Sub-Accounts.  We
intend  this  charge to cover  actual  administrative  expenses  that exceed the
revenues  from  the  contract   maintenance   charge.   There  is  no  necessary
relationship  between  the amount of  administrative  charge  imposed on a given
Contract and the amount of expenses that may be  attributable  to that Contract.
We assess  this  charge  each day during the  Accumulation  Phase and the Payout
Phase. We guarantee that we will not raise this charge.

TRANSFER FEE

We  do  not  currently   impose  a  fee  upon  transfers  among  the  investment
alternatives. However, we reserve the right to charge $10 per transfer after the
12th  transfer  in each  Contract  Year.  We will not charge a  transfer  fee on
transfers  that are part of a Dollar Cost  Averaging  Program or Automatic  Fund
Rebalancing Program.

WITHDRAWAL CHARGE


We may assess a  withdrawal  charge of up to 7% of the purchase  payment(s)  you
withdraw.  The charge  declines  to 0% after 7  complete  years from the date we
received the purchase payment being withdrawn. A schedule showing how the charge
declines appears on page ___, above. During each Contract Year, you can withdraw
up to 15% of the  Contract  Value  as of the  beginning  of that  Contract  Year
without paying the charge.  Unused portions of this 15% "Free Withdrawal Amount"
are not carried forward to future Contract Years.

We will deduct  withdrawal  charges,  if  applicable,  from the amount paid. For
purposes of the withdrawal  charge, we will treat withdrawals as coming from the
oldest  purchase  payments  first.  However,  for federal  income tax  purposes,
earnings  are  considered  to come out first,  which  means you pay taxes on the
earnings portion of your withdrawal.

<PAGE>

We do not apply a withdrawal charge in the following situations:

o    on the  Payout  Start Date (a  withdrawal  charge may apply if you elect to
     receive income payments for a specified period of less than 120 months);


o    the death of the  Contract  owner or Annuitant (unless the Settlement
     Value is used);


o    withdrawals  taken  to  satisfy  IRS  minimum  distribution  rules  for
     the Contract; or

o    withdrawals that qualify for one of the waivers described below.

We use the amounts obtained from the withdrawal  charge to pay sales commissions
and other  promotional or  distribution  expenses  associated with marketing the
Contracts.  To the extent  that the  withdrawal  charge does not cover all sales
commissions and other  promotional or distribution  expenses,  we may use any of
our  corporate  assets,  including  potential  profit  which may arise  from the
mortality and expense risk charge or any other  charges or fee described  above,
to make up any difference.

Withdrawals  also may be  subject  to tax  penalties  or income tax and a Market
Value Adjustment.  You should consult your own tax counsel or other tax advisers
regarding any withdrawals.

Confinement  Waiver.  We will waive the  withdrawal  charge and any Market Value
Adjustment  on all  withdrawals  taken prior to the Payout Start Date under your
Contract if the following conditions are satisfied:

         1) you, or the  Annuitant  if the  Contract  is owned by a  non-natural
         person,  are first  confined to a long term care facility or a hospital
         (as defined in the Contract) for at least 90  consecutive  days. You or
         the  Annuitant  must enter the long term care  facility  or hospital at
         least 30 days after the Issue Date;

         2) we must receive your  request for the  withdrawal  and due proof (as
         defined in the  Contract)  of the stay no later than 90 days  following
         the end of your or the Annuitant's  stay at the long term care facility
         or hospital; and

         3)   a physician  must have  prescribed  the stay and the stay must be
         medically necessary (as defined in the Contract).

You may not claim this benefit if you, or the Annuitant,  or a member of your or
the Annuitant's immediate family (as defined in the Contract),  is the physician
prescribing your or the Annuitant's stay in a long term care facility.

Terminal  Illness  Waiver.  We will waive the  withdrawal  charge and any Market
Value  Adjustment on all withdrawals  taken prior to the Payout Start Date under
your Contract if:

       1) you (or the Annuitant if the Contract owner is not a natural person)
       are first  diagnosed by a physician (we may require a second or a third
       opinion) with a terminal  illness (as defined in the Contract) at least
       30 days after the Issue Date; and

       2) you claim this benefit and deliver adequate proof of diagnosis to us.

Unemployment  Waiver.  We will waive the withdrawal  charge and any Market Value
Adjustment on one partial or a full  withdrawal  taken prior to the Payout Start
Date under your Contract, if you meet the following requirements:

     1) you or the Annuitant become unemployed at least one year after the
       Issue Date;

     2) you or the Annuitant  have been granted  unemployment  compensation  (as
     defined in the  Contract) for at least 30  consecutive  days as a result of
     that  unemployment  and we receive  due proof  thereof  (as  defined in the
     Contract) prior to or at the time of the withdrawal request; and

     3) you or the Annuitant  exercise  this benefit  within 180 days of your or
     the Annuitant's initial receipt of unemployment compensation.

You may exercise this benefit once during the life of your Contract. This waiver
applies upon the unemployment of the Annuitant only if the Contract owner is not
a natural person.

Please refer to your Contract for more detailed  information about the terms and
conditions of these waivers.


The laws of your state may limit the  availability of these waivers and may also
change certain terms and/or  benefits  available  under the waivers.  You should
consult your Contract for further details on these variations. Also, even if you
are not required to pay our  withdrawal  charge  because of these  waivers,  you
still may be required to pay taxes or tax penalties on the amount withdrawn. You
should  consult your tax adviser to determine the effect of a withdrawal on your
taxes.

<PAGE>

PREMIUM TAXES

Some  states  and other  governmental  entities  (e.g.,  municipalities)  charge
premium taxes or similar taxes.  We are  responsible  for paying these taxes and
will deduct them from your Contract Value.  Some of these taxes are due when the
Contract is issued, others are due when income payments begin or upon surrender.
Our  current  practice  is not to charge  anyone for these  taxes  until  income
payments begin or when a total withdrawal occurs,  including payment upon death.
We may discontinue this practice sometime in the future and deduct premium taxes
from  the  purchase  payments.  Premium  taxes  generally  range  from 0% to 4%,
depending on the state.


At the Payout Start Date, if applicable,  we deduct the charge for premium taxes
from each  investment  alternative in the proportion  that the Contract  owner's
value in the investment alternative bears to the total Contract Value.


DEDUCTION FOR SEPARATE ACCOUNT INCOME TAXES

We are not currently maintaining a provision for taxes. In the future,  however,
we may establish a provision for taxes if we determine,  in our sole discretion,
that we will incur a tax as a result of the  operation of the Variable  Account.
We will  deduct  for any  taxes we incur as a  result  of the  operation  of the
Variable  Account,  whether or not we previously  made a provision for taxes and
whether or not it was sufficient.  Our status under the Internal Revenue Code is
briefly described in the Statement of Additional Information.

OTHER EXPENSES

Each  Fund  deducts  advisory  fees and  other  expenses  from its  assets.  You
indirectly  bear the charges and  expenses of the Fund whose  shares are held by
the  Variable  Sub-Accounts.  These  fees  and  expenses  are  described  in the
accompanying  prospectus  for the Funds.  For a summary of current  estimates of
those charges and expenses,  see pages __-__ above. We may receive  compensation
from A I M Advisors, Inc., for administrative services we provide to the Funds.

<PAGE>

ACCESS TO YOUR MONEY
- ------------------------------------------------------------------------------
You can  withdraw  some or all of your  Contract  Value at any time prior to the
Payout Start Date. Withdrawals also are available under limited circumstances on
or after the Payout Start Date. See "Income Plans" on page 27.

The amount payable upon  withdrawal is the Contract Value next computed after we
receive the request for a withdrawal at our headquarters, adjusted by any Market
Value Adjustment,  less any withdrawal charges,  contract  maintenance  charges,
income  tax  withholding,  penalty  tax,  and any  premium  taxes.  We will  pay
withdrawals  from the Variable  Account within 7 days of receipt of the request,
subject to postponement in certain circumstances.

You can withdraw money from the Variable  Account or the Fixed Account  Options.
To  complete a partial  withdrawal  from the  Variable  Account,  we will cancel
Accumulation  Units in an  amount  equal to the  withdrawal  and any  applicable
withdrawal charge and premium taxes.

You  must  name  the  investment  alternative  from  which  you are  taking  the
withdrawal.  If none is named,  then the  withdrawal  request is incomplete  and
cannot be honored.

In general,  you must  withdraw at least $50 at a time.  You also may withdraw a
lesser  amount  if you  are  withdrawing  your  entire  interest  in a  Variable
Sub-Account.


If you request a total withdrawal, we may require you to return your Contract to
us. We also will  deduct a contract  maintenance  charge of $35,  unless we have
waived the contract maintenance charge on your Contract.


POSTPONEMENT OF PAYMENTS

We may postpone the payment of any amounts due from the Variable  Account  under
the Contract if:

1) The New York  Stock  Exchange  is closed for other  than  usual  weekends  or
holidays, or trading on the Exchange is otherwise restricted;

2)   An emergency exists as defined by the SEC; or

3)   The SEC permits delay for your protection.

In addition,  we may delay payments or transfers from the Fixed Account  Options
for up to 6 months or shorter  period if required by law. If we delay payment or
transfer  for 30 days or more,  we will pay  interest as  required  by law.  Any
interest would be payable from the date we receive the withdrawal request to the
date we make the payment or transfer.

SYSTEMATIC WITHDRAWAL PROGRAM

You  may  choose  to  receive  systematic  withdrawal  payments  on  a  monthly,
quarterly,  semi-annual,  or annual  basis at any time prior to the Payout Start
Date.  The  minimum  amount  of  each  systematic  withdrawal  is  $50.  At  our
discretion,  systematic  withdrawals may not be offered in conjunction  with the
Dollar Cost Averaging or Automatic Fund Rebalancing Programs.

Depending  on  fluctuations  in the value of the Variable  Sub-Accounts  and the
value of the Fixed Account,  systematic  withdrawals  may reduce or even exhaust
the Contract  Value.  Income taxes may apply to systematic  withdrawals.  Please
consult your tax advisor before taking any withdrawal.

We will make systematic  withdrawal payments to you or your designated payee. We
may modify or suspend the Systematic  Withdrawal Program and charge a processing
fee for the service. If we modify or suspend the Systematic  Withdrawal Program,
existing systematic withdrawal payments will not be affected.

MINIMUM CONTRACT VALUE


If your request for a partial withdrawal would reduce the Contract Value to less
than  $1,000,  we may treat it as a request to  withdraw  your  entire  Contract
Value.  Your Contract will terminate if you withdraw all of your Contract Value.
We will, however,  ask you to confirm your withdrawal request before terminating
your  Contract.  If we terminate your  Contract,  we will  distribute to you its
Contract  Value,  adjusted  by any  applicable  Market  Value  Adjustment,  less
withdrawal and other charges, and taxes.


<PAGE>

INCOME PAYMENTS
- ------------------------------------------------------------------------------
PAYOUT START DATE


You select the Payout Start Date in your  application.  The Payout Start Date is
the day  that we  apply  your  Contract  Value,  adjusted  by any  Market  Value
Adjustment  and less any applicable  taxes,  to an Income Plan. The Payout Start
Date must be no later than the Annuitant's  90th birthday,  or the 10th Contract
Anniversary, if later.


You may change the Payout  Start Date at any time by  notifying us in writing of
the change at least 30 days before the  scheduled  Payout  Start Date.  Absent a
change, we will use the Payout Start Date stated in your Contract.

INCOME PLANS


An  "Income  Plan" is a series of  payments  on a  scheduled  basis to you or to
another  person  designated  by you.  You may choose and change  your  choice of
Income Plan until 30 days before the Payout Start Date.  If you do not select an
Income Plan, we will make income  payments in accordance with Income Plan 1 with
guaranteed  payments for 10 years. After the Payout Start Date, you may not make
withdrawals (except as described below) or change your choice of Income Plan.


Three  Income  Plans are  available  under the  Contract.  Each is  available to
provide:

o        fixed income payments;
o        variable income payments; or
o        a combination of the two.

The three Income Plans are:

       Income Plan 1 -- Life Income with Guaranteed Payments.
       Under this plan, we make periodic income payments for at least as
       long as the Annuitant lives.  If the Annuitant dies before we have made
       all of the guaranteed  income payments,  we will continue to pay the
       remainder  of the  guaranteed  income  payments  as  required  by the
       Contract.

       Income Plan 2 - Joint and Survivor Life Income with Guaranteed Payments.
       Under this plan, we make periodic income payments for at least as long
       as either the Annuitant or the joint Annuitant is alive.  If both the
       Annuitant and the joint Annuitant die before we have made all of the
       guaranteed income payments, we will continue to pay the remainder of the
       guaranteed income payments as required by the Contract.


       Income Plan 3 -- Guaranteed  Payments for a Specified Period (5 Years
       to 30 Years).  Under this plan, we make periodic  income payments for
       the  period  you have  chosen.  These  payments  do not depend on the
       Annuitant's  life.  Income  payments  for less than 120 months may be
       subject to a  withdrawal  charge.  We will deduct the  mortality  and
       expense  risk  charge  from the  Variable  Sub-Account  assets  which
       support  variable  income  payments  even  though  we do not bear any
       mortality risk.


The length of any  guaranteed  payment  period under your  selected  Income Plan
generally  will affect the dollar amounts of each income  payment.  As a general
rule, longer guarantee periods result in lower income payments, all other things
being equal. For example, if you choose an Income Plan with payments that depend
on the life of the Annuitant but with no minimum specified period for guaranteed
payments, the income payments generally will be greater than the income payments
made under the same Income Plan with a minimum  specified  period for guaranteed
payments.

If you choose  Income Plan 1 or 2, or, if  available,  another  Income Plan with
payments that continue for the life of the Annuitant or joint Annuitant,  we may
require proof of age and sex of the Annuitant or joint Annuitant before starting
income payments, and proof that the Annuitant or joint Annuitant is alive before
we make each payment.  Please note that under such Income Plans, if you elect to
take no minimum guaranteed payments, it is possible that the payee could receive
only 1 income  payment if the Annuitant and any joint  Annuitant both die before
the second  income  payment,  or only 2 income  payments  if they die before the
third income payment, and so on.


Generally,  you may not make  withdrawals  after  the  Payout  Start  Date.  One
exception to this rule applies if you are  receiving  variable  income  payments
that do not depend on the life of the  Annuitant  (such as under Income Plan 3).
In that case you may  terminate  the  Variable  Account  portion  of the  income
payments at any time and  receive a lump sum equal to the  present  value of the
remaining  variable  payments due. A withdrawal charge may apply. We also deduct
applicable premium taxes from the Contract Value at the Payout Start Date.


We may make other Income Plans available.  You may obtain information about them
by writing or calling us.
<PAGE>

You may  apply all or part of your  Contract  Value to an  Income  Plan.  If you
elected the Enhanced Death and Income Benefit Combination Rider, you may be able
to apply an amount greater than your Contract Value. You must apply at least the
Contract  Value in the Fixed  Account  Options on the Payout Start Date to fixed
income  payments.  If you wish to apply any portion of your Fixed Account Option
balance to provide variable income payments,  you should plan ahead and transfer
that amount to the Variable  Sub-Accounts prior to the Payout Start Date. If you
do not tell us how to allocate  your  Contract  Value  among fixed and  variable
income  payments,  we will apply your Contract Value in the Variable  Account to
variable income payments and your Contract Value in the Fixed Account Options to
fixed income payments.


We will apply your Contract Value,  adjusted by a Market Value Adjustment,  less
applicable  taxes to your Income Plan on the Payout Start Date.  If the Contract
Value is less than  $2,000 or not enough to  provide  an  initial  payment of at
least $20, and state law permits, we may:


o    pay you the  Contract  Value,  adjusted  by any  Market  Value  Adjustment
     and less any  applicable  taxes,  in a lump sum instead of the periodic
     payments you have chosen, or

o    reduce the frequency of your payments so that each payment will be at
     least $20.

VARIABLE INCOME PAYMENTS

The amount of your variable income payments depends upon the investment  results
of the Variable  Sub-Accounts you select, the premium taxes you pay, the age and
sex of the  Annuitant,  and the Income Plan you choose.  We  guarantee  that the
payments  will not be affected by (a) actual  mortality  experience  and (b) the
amount of our administration expenses.

We cannot  predict  the total  amount of your  variable  income  payments.  Your
variable income  payments may be more or less than your total purchase  payments
because (a) variable  income  payments vary with the  investment  results of the
underlying  Funds and (b) the  Annuitant  could live  longer or shorter  than we
expect based on the tables we use.


In calculating the amount of the periodic  payments in the annuity tables in the
Contract,  we  assumed  an  annual  investment  rate of 3%.  If the  actual  net
investment  return of the  Variable  Sub-Accounts  you  choose is less than this
assumed investment rate, then the dollar amount of your variable income payments
will decrease. The dollar amount of your variable income payments will increase,
however,  if the actual net  investment  return  exceeds the assumed  investment
rate. The dollar amount of the variable  income  payments stays level if the net
investment  return  equals the  assumed  investment  rate.  Please  refer to the
Statement of Additional  Information for more detailed  information as to how we
determine  variable income payments.  We reserve the right to make other assumed
investments rates available under the Contract.


FIXED INCOME PAYMENTS

We guarantee  income payment  amounts  derived from any Fixed Account Option for
the duration of the Income Plan. We calculate the fixed income payments by:

1) adjusting the portion of the Contract  Value in any Fixed  Account  Option on
the Payout Start Date by any applicable Market Value Adjustment;

2)   deducting any applicable premium tax; and

3) applying the  resulting  amount to the greater of (a) the  appropriate  value
from the income payment table in your Contract or (b) such other value as we are
offering at that time.

We may defer making fixed income payments for a period of up to 6 months or such
shorter  times as state law may  require.  If we defer  payments  for 30 days or
more,  we will pay  interest  as  required  by law from the date we receive  the
withdrawal request to the date we make payment.

CERTAIN EMPLOYEE BENEFIT PLANS

The Contracts  offered by this  prospectus  contain  income  payment tables that
provide  for  different  payments  to men and women of the same  age,  except in
states that require  unisex  tables.  We reserve the right to use income payment
tables that do not  distinguish  on the basis of sex to the extent  permitted by
law. In certain employment-related situations,  employers are required by law to
use the same  income  payment  tables  for men and  women.  Accordingly,  if the
Contract is to be used in connection  with an  employment-related  retirement or
benefit plan and we do not offer unisex annuity tables in your state, you should
consult  with  legal  counsel  as to  whether  the  purchase  of a  Contract  is
appropriate.

<PAGE>

DEATH BENEFITS
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We will pay a death benefit if, prior to the Payout Start Date:

1)   any Contract owner dies or,
2)   the  Annuitant  dies,  if the Contract is owned by a company or other
     legal entity.


We  will  pay  the  death  benefit  to the  new  Contract  owner  as  determined
immediately  after  the  death.  The new  Contract  owner  would be a  surviving
Contract  owner or, if none, the  Beneficiary(ies).  In the case of the death of
the Annuitant, we will pay the death benefit to the current Contract Owner.


DEATH BENEFIT AMOUNT

Prior to the Payout Start Date, the death benefit is equal to the greatest of:

1)   the Contract Value as of the date we determine the death benefit, or

2)   the Settlement  Value (that is, the amount payable on a full  withdrawal of
     Contract Value) on the date we determine the death benefit, or

3)   the sum of all purchase  payments  reduced by a withdrawal  adjustment,  as
     defined below, or

4)   the Contract  Value on the Death Benefit  Anniversary  prior to the date we
     determine the death benefit, increased by purchase payments made since that
     Death Benefit Anniversary and reduced by a withdrawal adjustment as defined
     below.

A "Death Benefit  Anniversary" is every seventh Contract  Anniversary during the
Accumulation Phase. For example, the 7th, 14th, and 21st Contract  Anniversaries
are the first three Death Benefit Anniversaries.

The  "withdrawal  adjustment"  is equal to (a)  divided by (b),  with the result
multiplied by (c), where:

       (a)  is the withdrawal amount;

       (b)  is the Contract Value immediately prior to the withdrawal; and

       (c)  is the value of the applicable death benefit  alternative
            immediately prior to the withdrawal.

A Market Value Adjustment, if any, made upon payment of a death benefit would be
positive.


We will  determine the value of the death benefit as of the end of the Valuation
Date on which we receive a complete request for payment of the death benefit. If
we receive a request after 3:00 p.m.  Central Time on a Valuation  Date, we will
process the request as of the end of he following Valuation Date.

A claim for a  distribution  on death must include "Due Proof of Death." We will
accept the following documentation as Due Proof of Death:

o   a certified copy of a death certificate; or

o   a certified copy of a decree of a court of competent jurisdiction as to a
    finding of death; or

o   any other proof acceptable to us.



ENHANCED DEATH BENEFIT RIDER


For Contract  owners up to an including age 80, the Enhanced Death Benefit Rider
is an optional  benefit  that you may elect.  If you elect the rider,  the death
benefit will be the greater of the death  benefit  alternatives  (1) through (4)
listed above, or (5) the enhanced death benefit.

If the Contract owner is a living individual, the enhanced death benefit applies
only for the death of the Contract  owner. If the Contract owner is not a living
individual,  the  enhanced  death  benefit  applies  only  for the  death of the
Annuitant.  The enhanced death benefit is equal to the greater of Enhanced Death
Benefit A or  Enhanced  Death  Benefit B.  Enhanced  Death  Benefit B may not be
available in all states.


The enhanced  death benefit will never be greater than the maximum death benefit
allowed by any nonforfeiture laws which govern the Contract.

Enhanced  Death  Benefit A. The  Enhanced  Death  Benefit A on the Issue Date is
equal to the initial purchase  payment.  On each Contract  Anniversary,  we will
recalculate  your Enhanced Death Benefit A to equal the greater of your Contract
Value on that date, or the most recently calculated Enhanced Death Benefit A. We
also  will  recalculate  your  Enhanced  Death  Benefit A  whenever  you make an
additional  purchase  payment  or  a  partial  withdrawal.  Additional  purchase
payments  will  increase  the  Enhanced   Death  Benefit  A   dollar-for-dollar.
Withdrawals  will reduce the  Enhanced  Death  Benefit A by an amount equal to a
withdrawal  adjustment  computed  in the manner  described  above  under  "Death
Benefit  Amount"  using the  Enhanced  Death  Benefit  A. In the  absence of any
withdrawals  or purchase  payments,  the  Enhanced  Death  Benefit A will be the
greatest of all Contract  Anniversary  Contract  Values on or before the date we
calculate the death benefit.


We will calculate  Anniversary Values for each Contract Anniversary prior to the
oldest Contract owner's or, if the  Annuitant's,  if the Contract owner is not a
natural person,  the oldest  Annuitant's,  85th birthday.  After age 85, we will
recalculate  the  Enhanced  Death  Benefit  A only  for  purchase  payments  and
withdrawals. The Enhanced Death Benefit A will never be greater than the maximum
death benefit allowed by any non-forfeiture laws which govern the Contract.

<PAGE>

Enhanced  Death  Benefit  B.  The  Enhanced  Death  Benefit  B is equal to total
purchase payments made reduced by a withdrawal adjustment computed in the manner
described  above under "Death  Benefit  Amount." Each purchase  payment and each
withdrawal  adjustment will accumulate daily at a rate equivalent to 5% per year
until the earlier of the date

o    we determine the death benefit, or
o    the first day of the month following the oldest Contract owner's or, if the
     Contract owner is not a natural person, the Annuitant's, 85th birthday.

The  Enhanced  Death  Benefit B will never be  greater  than the  maximum  death
benefit allowed by any non-forfeiture laws which govern the Contract.

ENHANCED DEATH AND INCOME BENEFIT COMBINATION RIDER


Instead of the Enhanced  Death  Benefit  Rider,  for  Contract  Owners up to and
including  age 80,  you  may  choose  the  Enhanced  Death  and  Income  Benefit
Combination Rider.


The enhanced  death  benefit  portion of the Enhanced  Death and Income  Benefit
Combination  Rider is the same as that  described  above under  "Enhanced  Death
Benefit Rider."

The  enhanced  income  benefit  defines a minimum  amount  applied to the Payout
Phase.  This  minimum  amount is equal to what the value of the  enhanced  death
benefit would be on the Payout Start Date.

The enhanced  income  benefit  will apply if the Contract  owner elects a Payout
Start Date that:

o   is on or after the tenth Contract Anniversary, and
o   is prior to the Annuitant's age 90.


On the Payout Start Date, you may apply the greater of the Contract Value or the
enhanced  income  benefit to the Payout Phase of the  Contract.  No Market Value
Adjustment will be applied to the enhanced  income benefit amount.  The enhanced
income benefit will only apply if you elect to receive fixed income payments and
the Income Plan selected provides payments guaranteed for either single or joint
life with a period certain of at least:

o  10 years, if the youngest Annuitant's age is 80 or less on the date the
   amount is applied; or

o  5 years, if the youngest Annuitant's age is greater than 80 on the date
   the amount is applied.


If, however, you apply the Contract Value and not the enhanced income benefit to
the Income Plan, then you may select any Income Plan we offer at that time.


DEATH BENEFIT PAYMENTS

A death benefit will be paid if:

1) the  Contract  owner  elects to receive the death  benefit  distributed  in a
single payment within 180 days of the date of death, and

2)   the death  benefit is paid as of the day we determine the value of the
death benefit.

Otherwise,  the Settlement Value will be paid. The Settlement Value paid will be
the Settlement Value next computed on or after the requested  distribution  date
for payment, or on the mandatory  distribution date of 5 years after the date of
death,  whichever is earlier. We are currently waiving the 180 day limit, but we
reserve the right to enforce the limitation in the future.

In any event,  the entire value of the  Contract  must be  distributed  within 5
years  after the date of death  unless an Income  Plan is elected or a surviving
spouse continues the Contract in accordance with the provisions described below.


<PAGE>

The Contract owner eligible to receive death benefits has the following options:

1) If the Contract  owner is not a natural  person,  then the Contract owner may
elect to receive the death benefit in one or more distributions.

2) If the Contract  owner is a natural  person,  the Contract owner may elect to
receive the death benefit under an Income Plan or in one or more  distributions.
Payments  from the Income  Plan must begin  within one year of the date of death
and must be payable throughout:

o    the life of the Contract owner; or

o    a period not to exceed the life expectancy of the Contract owner; or

o    the life of the Contract owner with payments guaranteed for a period not to
     exceed the life expectancy of the Contract owner.

3) If the surviving  spouse of the deceased  Contract  owner is the new Contract
owner, then the spouse may elect one of the options listed above or may continue
the Contract in the  Accumulation  Phase as if the death had not  occurred.  The
Contract  may only be  continued  once.  If the  Contract  is  continued  in the
Accumulation  Phase,  the surviving  spouse may make a single  withdrawal of any
amount  within  one year of the date of death  without  incurring  a  withdrawal
charge or a Market Value Adjustment.  On the day the Contract is continued,  the
Contract  Value will be the death benefit on the Valuation Date after we receive
due proof of death.  The death  benefit of the  continued  Contract  will be the
greater of:

       (a)  the sum of all purchase payments reduced by a withdrawal adjustment,
       as defined in the death benefit provision, or

       (b)  the Contract Value on the date we determine the death benefit.


<PAGE>

MORE INFORMATION
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GLENBROOK

Glenbrook is the issuer of the  Contract.  Glenbrook  is a stock life  insurance
company  organized  under the laws of the State of Arizona in 1998.  Previously,
Glenbrook  was  organized  under  the  laws of the  State of  Illinois  in 1992.
Glenbrook  was  originally  organized  under the laws of the State of Indiana in
1965.  From 1965 to 1983 Glenbrook was known as "United  Standard Life Assurance
Company"  and from 1983 to 1992 as  "William  Penn  Life  Assurance  Company  of
America."

Glenbrook is  currently  licensed to operate in the District of Columbia and all
states except New York.  We intend to offer the Contract in those  jurisdictions
in which we are  licensed.  Our  headquarters  is located at 3100 Sanders  Road,
Northbrook, Illinois, 60062.


Glenbrook  is a wholly  owned  subsidiary  of Allstate  Life  Insurance  Company
("Allstate Life"), a stock life insurance company incorporated under the laws of
the State of Illinois.  Allstate  Life is a wholly owned  subsidiary of Allstate
Insurance Company,  a stock  property-liability  insurance company  incorporated
under the laws of the State of Illinois. All of the outstanding capital stock of
Allstate Insurance Company is owned by The Allstate Corporation.


Glenbrook and Allstate Life entered into a reinsurance  agreement effective June
5, 1992. Under the reinsurance agreement,  Allstate Life reinsures substantially
all of  Glenbrook's  liabilities  under its  various  insurance  contracts.  The
reinsurance  agreement  provides us with  financial  backing from Allstate Life.
However, it does not create a direct contractual  relationship  between Allstate
Life and you.  In other  words,  the  obligations  of  Allstate  Life  under the
reinsurance agreement are to Glenbrook; Glenbrook remains the sole obligor under
the Contract to you.

Several   independent   rating  agencies   regularly   evaluate  life  insurers'
claims-paying ability, quality of investments,  and overall stability. A.M. Best
Company assigns A+ (Superior) to Allstate Life which automatically reinsures all
net business of Glenbrook.  A.M. Best Company also assigns  Glenbrook the rating
of  A+(r)  because  Glenbrook  automatically  reinsures  all net  business  with
Allstate Life.  Standard & Poor's Insurance Rating Services assigns an AA+ (Very
Strong)  financial  strength  rating  and  Moody's  assigns  an Aa2  (Excellent)
financial strength rating to Glenbrook. Glenbrook shares the same ratings of its
parent,  Allstate Life. These ratings do not reflect the investment  performance
of the Variable Account. We may from time to time advertise these ratings in our
sales literature.

THE VARIABLE ACCOUNT

Glenbrook  established the Glenbrook Life and Annuity Company Separate Account A
on September 6, 1995. We have registered the Variable  Account with the SEC as a
unit investment trust. The SEC does not supervise the management of the Variable
Account or Glenbrook.

We own the assets of the Variable Account.  The Variable Account is a segregated
asset  account  under  Arizona  law.  That  means we  account  for the  Variable
Account's  income,  gains and losses  separately  from the  results of our other
operations.  It also means that only the assets of the Variable Account that are
in excess of the reserves  and other  Contract  liabilities  with respect to the
Variable  Account are subject to liabilities  relating to our other  operations.
Our obligations arising under the Contracts are general corporate obligations of
Glenbrook.


The Variable Account consists of 17 Variable Sub-Accounts, each of which invests
in a corresponding  Fund. We may add new Variable  Sub-Accounts or eliminate one
or more of them,  if we believe  marketing,  tax, or  investment  conditions  so
warrant. We may also add other variable sub-accounts that may be available under
other variable annuity contracts. We do not guarantee the investment performance
of the Variable Account,  its Sub-Accounts or the Funds. We may use the Variable
Account to fund our other annuity contracts. We will account separately for each
type of annuity contract funded by the Variable Account.


THE FUNDS

Dividends and Capital Gain Distributions We automatically reinvest all dividends
and capital  gains  distributions  from the Funds in shares of the  distributing
Funds at their net asset value.

Voting  Privileges As a general  matter,  you do not have a direct right to vote
the  shares of the Funds  held by the  Variable  Sub-Accounts  to which you have
allocated your Contract Value.  Under current law, however,  you are entitled to
give us  instructions on how to vote those shares on certain  matters.  Based on
our  present  view of the law, we will vote the shares of the Funds that we hold
directly  or  indirectly   through  the  Variable  Account  in  accordance  with
instructions  that we  receive  from  Contract  owners  entitled  to  give  such
instructions.

As a general rule,  before the Payout Start Date,  the Contract  owner or anyone
with a voting interest is the person entitled to give voting  instructions.  The
number of shares that a person has a right to  instruct  will be  determined  by
dividing the Contract Value allocated to the applicable Variable  Sub-Account by
the net asset value per share of the corresponding Fund as of the record date of
the meeting.  After the Payout Start Date, the person  receiving income payments
has the voting  interest.  The  payee's  number of votes will be  determined  by
dividing the reserve for such Contract  allocated to the applicable  Sub-account
by the net asset value per share of the  corresponding  eligible Fund. The votes
decrease  as  income  payments  are made and as the  reserves  for the  Contract
decrease.

We will vote shares  attributable  to  Contracts  for which we have not received
instructions, as well as shares attributable to us, in the same proportion as we
vote shares for which we have received instructions, unless we determine that we
may vote such shares in our own discretion. We will apply voting instructions to
abstain  on any item to be voted  upon on a  pro-rata  basis to reduce the votes
eligible to be cast.

We reserve the right to vote Fund shares as we see fit without  regard to voting
instructions   to  the  extent   permitted  by  law.  If  we  disregard   voting
instructions,  we will include a summary of that action and our reasons for that
action in the next semi-annual financial report we send to you.
<PAGE>


Changes in Funds If the shares of any of the Funds are no longer  available  for
investment by the Variable Account or if, in our judgment, further investment in
such shares is no longer  desirable in view of the purposes of the Contract,  we
may eliminate that Fund and  substitute  shares of another  eligible  investment
fund. Any  substitution of securities  will comply with the  requirements of the
1940 Act. We also may add new Variable  Sub-Accounts  that invest in  additional
mutual funds. We will notify you in advance of any change.

Conflicts  of  Interest  The  Funds  sell  their  shares  to  separate  accounts
underlying both variable life insurance and variable  annuity  contracts.  It is
conceivable that in the future it may be unfavorable for variable life insurance
separate  accounts and variable annuity separate  accounts to invest in the same
Fund. The board of directors of the Funds monitors for possible  conflicts among
separate  accounts  buying  shares of the Funds.  Conflicts  could develop for a
variety of reasons.  For example,  differences in treatment  under tax and other
laws or the failure by a separate account to comply with such laws could cause a
conflict.  To eliminate a conflict,  the Funds' board of directors may require a
separate  account to withdraw  its  participation  in a Fund. A Fund's net asset
value could decrease if it had to sell  investment  securities to pay redemption
proceeds to a separate account withdrawing because of a conflict.

THE CONTRACT


Distribution.  ALFS, Inc.* ("ALFS") is located at 3100 Sanders Road, Northbrook,
Illinois 60062-7154, serves as principal underwriter of the Contracts. ALFS is a
wholly owned  subsidiary of Allstate  Life.  ALFS is a registered  broker dealer
under the Securities and Exchange Act of 1934, as amended  ("Exchange Act"), and
is a member of the National Association of Securities Dealers, Inc.


We will pay commissions to  broker-dealers  who sell the Contracts.  Commissions
paid may vary, but we estimate that the total  commissions  paid on all Contract
sales will not exceed 8% of all purchase  payments (on a present  value  basis).
These commissions are intended to cover  distribution  expenses.  Sometimes,  we
also pay the  broker-dealer  a  persistency  bonus in addition  to the  standard
commissions.  A persistency  bonus is not expected to exceed 1.20%, on an annual
basis, of the Contract Values  considered in connection with the bonus.  Sale of
the Contracts may also count toward incentive  program awards for the registered
representative.  In some states,  Contracts  may be sold by  representatives  or
employees  of banks  which  may be  acting as  broker-dealers  without  separate
registration   under  the  Exchange  Act,   pursuant  to  legal  and  regulatory
exceptions.

- ------------
*Effective May 1, 2000, Allstate Life Financial Services, Inc. was renamed ALFS,
Inc.

<PAGE>

Glenbrook does not pay ALFS a commission for distribution of the Contracts.  The
underwriting  agreement  with ALFS provides that we will  reimburse ALFS for any
liability  to Contract  owners  arising out of  services  rendered or  Contracts
issued.

Administration.  We have primary  responsibility  for all  administration of the
Contracts and the Variable Account.  We provide the following administrative
services, among others:

o        issuance of the Contracts;
o        maintenance of Contract owner records;
o        Contract owner services;
o        calculation of unit values;
o        maintenance of the Variable Account; and
o        preparation of Contract owner reports.



We will send you Contract  statements  and  transaction  confirmations  at least
annually.  You should notify us promptly in writing of any address  change.  You
should  read your  statements  and  confirmations  carefully  and  verify  their
accuracy. You should contact us promptly if you have a question about a periodic
statement. We will investigate all complaints and make any necessary adjustments
retroactively,  but you must notify us of a potential  error within a reasonable
time  after  the date of the  questioned  statement.  If you wait too  long,  we
reserve the right to make the  adjustment as of the date that we receive  notice
of the potential error.


We also will provide you with additional periodic and other reports, information
and prospectuses as may be required by federal securities laws.

QUALIFIED PLANS

If you use the Contract with a qualified plan, the plan may impose  different or
additional  conditions  or  limitations  on  withdrawals,  waivers of withdrawal
charges, death benefits, Payout Start Dates, income payments, and other Contract
features.  In addition,  adverse tax  consequences  may result if qualified plan
limits on  distributions  and other  conditions are not met. Please consult your
qualified plan administrator for more information.

LEGAL MATTERS

Freedman,  Levy,  Kroll & Simonds,  Washington,  D.C., has advised  Glenbrook on
certain federal  securities law matters.  All matters of state law pertaining to
the Contracts,  including the validity of the Contracts and Glenbrook's right to
issue such Contracts under state insurance law, have been passed upon by Michael
J. Velotta, General Counsel of Glenbrook.
<PAGE>

YEAR 2000


Glenbrook is heavily  dependent upon complex  computer systems for all phases of
its   operations,   including   customer   service,   and  policy  and  contract
administration.  Since many of  Glenbrook's  older  computer  software  programs
recognize  only the last two digits of the year in any date,  some  software may
have failed to operate  properly in or after the year 1999,  if the software was
not reprogrammed or replaced ("Year 2000 Issue").  Glenbrook  believes that many
of its  counterparties  and suppliers  also had potential Year 2000 Issues which
could affect  Glenbrook.  In 1995,  Allstate  Insurance Company commenced a four
phase plan intended to mitigate  and/or prevent the adverse effects of Year 2000
Issues.  These strategies included normal development and enhancement of new and
existing  systems,  upgrades to operating systems already covered by maintenance
agreements,  and  modifications  to  existing  systems  to make  them  Year 2000
compliant.  The plan also  included  Glenbrook  actively  working with its major
external  counterparties  and suppliers to assess their  compliance  efforts and
Glenbrook's  exposure to them.  Because of the  accuracy  of this plan,  and its
timely completion,  Glenbrook has experienced no material impacts on its results
of operations,  liquidity or financial position due to the Year 2000 issue. Year
2000 costs are expensed as incurred.


<PAGE>

TAXES
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The following discussion is general and is not intended as tax advice. Glenbrook
makes no guarantee  regarding the tax  treatment of any Contract or  transaction
involving a Contract.

Federal,  state,  local and other tax  consequences  of  ownership or receipt of
distributions under an annuity contract depend on your individual circumstances.
If you are concerned about any tax  consequences  with regard to your individual
circumstances, you should consult a competent tax adviser.

Taxation of Annuities in General

Tax  Deferral.  Generally,  you are not taxed on increases  in the Contract
Value until a  distribution  occurs.  This rule applies only where:

       1) the Contract owner is a natural person,

       2) the  investments  of the Variable  Account are  "adequately
       diversified"  according to Treasury  Department  regulations, and

       3) Glenbrook is considered  the owner of the Variable  Account assets for
       federal income tax purposes.

Non-natural  Owners.  As a general rule,  annuity contracts owned by non-natural
persons  such as  corporations,  trusts,  or other  entities  are not treated as
annuity contracts for federal income tax purposes.  The income on such contracts
is taxed as ordinary  income received or accrued by the owner during the taxable
year.  Please see the  Statement of Additional  Information  for a discussion of
several  exceptions  to the  general  rule for  Contracts  owned by  non-natural
persons.

Diversification  Requirements.  For a Contract  to be treated as an annuity  for
federal income tax purposes,  the  investments  in the Variable  Account must be
"adequately  diversified"  consistent with standards  under Treasury  Department
regulations.  If the  investments  in the  Variable  Account are not  adequately
diversified, the Contract will not be treated as an annuity contract for federal
income tax  purposes.  As a result,  the income on the Contract will be taxed as
ordinary  income  received or accrued by the  Contract  owner during the taxable
year.  Although  Glenbrook  does  not  have  control  over  the  Funds  or their
investments, we expect the Funds to meet the diversification requirements.

Ownership Treatment. The IRS has stated that you will be considered the owner of
Variable  Account assets if you possess  incidents of ownership in those assets,
such as the ability to exercise  investment control over the assets. At the time
the diversification  regulations were issued, the Treasury Department  announced
that the regulations do not provide guidance  concerning  circumstances in which
investor  control of separate  account  investments  may cause an investor to be
treated as the owner of the  separate  account.  The  Treasury  Department  also
stated that future  guidance  would be issued  regarding  the extent that owners
could direct  sub-account  investments  without  being  treated as owners of the
underlying assets of the separate account.

Your rights under the Contract are different than those  described by the IRS in
rulings  in which it found that  contract  owners  were not  owners of  separate
account  assets.  For  example,  you have the choice to  allocate  premiums  and
Contract  Values among more  investment  alternatives.  Also, you may be able to
transfer among  investment  alternatives  more  frequently than in such rulings.
These differences could result in you being treated as the owner of the Variable
Account. If this occurs,  income and gain from the Variable Account assets would
be includible in your gross income.  Glenbrook does not know what standards will
be set forth in any  regulations  or rulings which the Treasury  Department  may
issue. It is possible that future standards announced by the Treasury Department
could adversely affect the tax treatment of your Contract.  We reserve the right
to modify the  Contract  as  necessary  to  attempt  to  prevent  you from being
considered the federal tax owner of the assets of the Variable Account. However,
we make no guarantee that such modification to the Contract will be successful.

Taxation of Partial and Full Withdrawals. If you make a partial withdrawal under
a  non-Qualified  Contract,  amounts  received  are  taxable  to the  extent the
Contract Value,  without regard to surrender charges,  exceeds the investment in
the Contract.  The  investment in the Contract is the gross premium paid for the
Contract minus any amounts previously received from the Contract if such amounts
were properly excluded from your gross income. If you make a partial  withdrawal
under a Qualified Contract, the portion of the payment that bears the same ratio
to the total payment that the  investment in the Contract  (i.e.,  nondeductible
IRA  contributions,  after tax  contributions  to qualified  plans) bears to the
Contract  Value,  is excluded  from your income.  If you make a full  withdrawal
under a non-Qualified Contract or a Qualified Contract, the amount received will
be taxable only to the extent it exceeds the investment in the Contract.

"Nonqualified   distributions"   from  Roth  IRAs  are   treated  as  made  from
contributions  first and are  included  in gross  income only to the extent that
distributions exceed contributions. "Qualified distributions" from Roth IRAs are
not included in gross income.  "Qualified  distributions"  are any distributions
made more than 5 taxable years after the taxable year of the first  contribution
to any Roth IRA and which are:

o        made on or after the date the individual attains age 59 1/2,

o        made to a beneficiary after the Contract owner's death,

o        attributable to the Contract owner being disabled, or
o        for a first time home purchase  (first time home purchases are subject
         to a lifetime limit of $10,000).
<PAGE>

If you transfer a non-Qualified Contract without full and adequate consideration
to a person  other  than  your  spouse  (or to a  former  spouse  incident  to a
divorce), you will be taxed on the difference between the Contract Value and the
investment in the Contract at the time of transfer. Except for certain Qualified
Contracts, any amount you receive as a loan under a Contract, and any assignment
or pledge (or agreement to assign or pledge) of the Contract Value is treated as
a withdrawal of such amount or portion.

Taxation of Annuity Payments. Generally, the rule for income taxation of annuity
payments received from a non-Qualified  Contract provides for the return of your
investment in the Contract in equal  tax-free  amounts over the payment  period.
The balance of each payment received is taxable. For fixed annuity payments, the
amount  excluded  from income is determined  by  multiplying  the payment by the
ratio of the  investment  in the Contract  (adjusted  for any refund  feature or
period certain) to the total expected value of annuity  payments for the term of
the Contract.  If you elect variable annuity payments,  the amount excluded from
taxable  income is determined by dividing the  investment in the Contract by the
total number of expected  payments.  The annuity  payments will be fully taxable
after the total amount of the investment in the Contract is excluded using these
ratios.  If you die, and annuity  payments  cease before the total amount of the
investment in the Contract is recovered,  the unrecovered amount will be allowed
as a deduction for your last taxable year.

Taxation of Annuity Death  Benefits.  Death of a Contract owner, or death of the
Annuitant  if the  Contract  is  owned by a  non-natural  person,  will  cause a
distribution  of death  benefits  from a Contract.  Generally,  such amounts are
included in income as follows:

1) if distributed in a lump sum, the amounts are taxed in the same manner as
a full withdrawal, or

2) if  distributed  under an annuity  option,  the amounts are taxed in the same
manner as an annuity payment. Please see the Statement of Additional Information
for more detail on distribution at death requirements.

Penalty Tax on Premature Distributions. A 10% penalty tax applies to the taxable
amount of any premature distribution from a non-Qualified  Contract. The penalty
tax generally  applies to any distribution made prior to the date you attain age
59 1/2. However, no penalty tax is incurred on distributions:

1) made on or after the date the Contract owner attains age 59 1/2; 2) made as a
result of the Contract  owner's death or  disability;  3) made in  substantially
equal periodic  payments over the Contract owner's life or life  expectancy,  4)
made  under an  immediate  annuity,  or 5)  attributable  to  investment  in the
Contract before August 14, 1982.

You should consult a competent tax advisor to determine if any other  exceptions
to the  penalty  apply  to your  situation.  Similar  exceptions  may  apply  to
distributions from Qualified Contracts.

Aggregation of Annuity Contracts.  All non-qualified  deferred annuity contracts
issued by Glenbrook (or its  affiliates)  to the same Contract  owner during any
calendar  year will be  aggregated  and  treated  as one  annuity  contract  for
purposes of determining the taxable amount of a distribution.

Tax Qualified Contracts

Contracts may be used as investments with certain qualified plans such as:

o        Individual Retirement Annuities or Accounts (IRAs) under Section 408
         of the Code;

o        Roth IRAs under Section 408A of the Code;

o        Simplified Employee Pension Plans under Section 408(k) of the Code;

o        Savings  Incentive  Match Plans for Employees  (SIMPLE) Plans under
         Section 408(p) of the Code;

o        Tax Sheltered Annuities under Section 403(b) of the Code;

o        Corporate and Self Employed Pension and Profit Sharing Plans; and

o        State and  Local Government and Tax-Exempt Organization Deferred
         Compensation Plans.


The income on qualified  plan and IRA  investments  is tax deferred and variable
annuities  held by such plans do not receive any  additional  tax deferral.  You
should review the annuity features,  including all benefits and expenses,  prior
to purchasing a variable annuity in a qualified plan or IRA.  Glenbrook reserves
the  right to limit the  availability  of the  Contract  for use with any of the
Qualified Plans listed above. In the case of certain  qualified plans, the terms
of the plans may govern the right to  benefits,  regardless  of the terms of the
Contract.


<PAGE>

Restrictions  Under Section  403(b) Plans.  Section  403(b) of the Code provides
tax-deferred  retirement  savings plans for employees of certain  non-profit and
educational organizations.  Under Section 403(b), any Contract used for a 403(b)
plan  must  provide  that   distributions   attributable  to  salary   reduction
contributions made after December 31, 1988, and all earnings on salary reduction
contributions, may be made only:

1)   on or after the date of employee

o        attains age 59 1/2,
o        separates from service,dies,
o        becomes disabled, or

2)   on account of hardship (earnings on salary reduction  contributions may
not be distributed on account of hardship).

These  limitations  do not apply to withdrawals  where  Glenbrook is directed to
transfer some or all of Contract Value to another 403(b) plan.

Income Tax Withholding

Glenbrook  is required to  withhold  federal  income tax at a rate of 20% on all
"eligible rollover  distributions"  unless you elect to make a "direct rollover"
of  such  amounts  to an IRA or  eligible  retirement  plan.  Eligible  rollover
distributions  generally  include all  distributions  from Qualified  Contracts,
excluding IRAs, with the exception of:

       1)   required minimum distributions, or

       2)   a series of substantially  equal periodic  payments made over a
            period of at least 10 years, or,

       3)   over the life (joint lives) of the participant (and beneficiary).

Glenbrook  may be  required to withhold  federal and state  income  taxes on any
distributions from non-Qualified  Contracts or Qualified  Contracts that are not
eligible  rollover  distributions,  unless you notify us of your election to not
have taxes withheld.

<PAGE>

ANNUAL REPORTS AND OTHER DOCUMENTS
- ------------------------------------------------------------------------------
Glenbrook's  annual report on Form 10-K for the year ended  December 31, 1999 is
incorporated herein by reference,  which means that it is legally a part of this
prospectus.

After the date of this  prospectus  and before we terminate  the offering of the
securities under this prospectus,  all documents or reports we file with the SEC
under the Exchange Act are also  incorporated  herein by reference,  which means
that they also legally become a part of this prospectus.

Statements in this  prospectus,  or in documents that we file later with the SEC
and that  legally  become a part of this  prospectus,  may  change or  supersede
statements  in  other  documents  that  are  legally  part of  this  prospectus.
Accordingly,  only the  statement  that is changed or replaced will legally be a
part of this prospectus.

We file our  Exchange  Act  documents  and  reports,  including  our  annual and
quarterly reports on Form 10-K and Form 10-Q electronically on the SEC's "EDGAR"
system using the identifying number CIK No. 0000947878.  The SEC maintains a Web
site  that  contains  reports,   proxy  and  information  statements  and  other
information  regarding  registrants that file  electronically  with the SEC. The
address of the site is http://www.sec.gov.  You also can view these materials at
the SEC's Public  Reference  Room at 450 Fifth Street,  N.W.,  Washington,  D.C.
20549.  For more  information on the operations of SEC's Public  Reference Room,
call 1-800-SEC-0330.

If you have  received a copy of this  prospectus,  and would like a free copy of
any  document   incorporated  herein  by  reference  (other  than  exhibits  not
specifically incorporated by reference into the text of such documents),  please
write or call us at or P.O. Box 94039, Palatine, Illinois 60094-4039 (telephone:
1-800-776-6978).

<PAGE>

PERFORMANCE INFORMATION
- ------------------------------------------------------------------------------
We may advertise the performance of the Variable  Sub-Accounts,  including yield
and total  return  information.  Yield  refers  to the  income  generated  by an
investment  in a Variable  Sub-Account  over a specified  period.  Total  return
represents  the  change,  over a  specified  period of time,  in the value of an
investment in a Variable Sub-Account after reinvesting all income distributions.

All performance  advertisements will include, as applicable,  standardized yield
and total return  figures that reflect the deduction of insurance  charges,  the
contract maintenance charge, and withdrawal charge.  Performance  advertisements
also may include  total return  figures that reflect the  deduction of insurance
charges,  but not the contract  maintenance or withdrawal charges. The deduction
of such charges would reduce the  performance  shown.  In addition,  performance
advertisements may include aggregate,  average,  year-by-year, or other types of
total return figures.

Performance  information for periods prior to the inception date of the Variable
Sub-Accounts  will be based on the historical  performance of the  corresponding
Funds  for the  periods  beginning  with the  inception  dates of the  Funds and
adjusted to reflect current  Contract  expenses.  You should not interpret these
figures to reflect actual historical performance of the Variable Account.

We may include in  advertising  and sales  materials  tax  deferred  compounding
charts and other  hypothetical  illustrations that compare currently taxable and
tax  deferred   investment   programs  based  on  selected  tax  brackets.   Our
advertisements  also may compare the  performance  of our Variable  Sub-Accounts
with: (a) certain unmanaged market indices, including but not limited to the Dow
Jones  Industrial  Average,  the Standard & Poor's 500, and the Shearson  Lehman
Bond Index;  and/or (b) other  management  investment  companies with investment
objectives  similar to the underlying  funds being  compared.  In addition,  our
advertisements   may  include  the  performance   ranking  assigned  by  various
publications,  including  the  Wall  Street  Journal,  Forbes,  Fortune,  Money,
Barron's,  Business Week, USA Today, and statistical services,  including Lipper
Analytical  Services  Mutual Fund Survey,  Lipper Annuity and Closed End Survey,
the Variable Annuity Research Data Survey, and SEI.


<PAGE>

EXPERTS
- ------------------------------------------------------------------------------


The financial  statements and related financial  statement schedule of Glenbrook
Life and Annuity  Company as of  December  31, 1999 and 1998 and for each of the
three years in the period ended December 31, 1999, which are incorporated herein
by reference,  have been audited by Deloitte & Touche LLP, independent auditors,
as stated in their report,  which is  incorporated  herein by reference,  and is
included in reliance upon the report of such firm given upon their  authority as
experts in accounting and auditing.

The financial  statements of the Variable  Account as of December 31, 1999,  and
for each of the  periods  in the two years  then  ended,  which is  incorporated
herein by  reference,  have been  audited by Deloitte & Touche LLP,  independent
auditors,  as stated in their report which is incorporated  herein by reference,
and is so  included  in  reliance  upon the report of such firm given upon their
authority as experts in accounting and auditing.



<PAGE>

<TABLE>
<CAPTION>


                                                             APPENDIX A
                                      Accumulation Unit Value and Number of Accumulation Units
                                     Outstanding for Each Variable Sub-Account Since Inception

                                                            Basic Policy


<S>                                                                           <C>                <C>

For the years beginning January 1* and ending December 31                      1998               1999

AIM V.I. AGGRESSIVE GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.561
Accumulation Unit Value, End of Period                                        $10.561            $15.111
Number of Units Outstanding, End of Period                                     50,119            334,924

AIM V.I. BALANCED SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.298
Accumulation Unit Value, End of Period                                        $11.298            $13.331
Number of Units Outstanding, End of Period                                     67,315            626,980

AIM V.I. CAPITAL APPRECIATION SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.037
Accumulation Unit Value, End of Period                                        $11.037            $15.787
Number of Units Outstanding, End of Period                                     97,387            829,707

AIM V.I. CAPITAL DEVELOPMENT SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000              $9.914
Accumulation Unit Value, End of Period                                         $9.914             $12.658
Number of Units Outstanding, End of Period                                     12,713             125,972

AIM V.I. DIVERSIFIED INCOME SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000             $9.873
Accumulation Unit Value, End of Period                                         $9.873             $9.577
Number of Units Outstanding, End of Period                                     31,735            248,525

AIM V.I. GLOBAL UTILITIES SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.803
Accumulation Unit Value, End of Period                                        $10.803            $14.271
Number of Units Outstanding, End of Period                                     28,175            112,484

AIM V.I. GOVERNMENT SECURITIES SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.706
Accumulation Unit Value, End of Period                                        $10.706            $10.162
Number of Units Outstanding, End of Period                                     52,212            402,500

AIM V.I. GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.824
Accumulation Unit Value, End of Period                                        $11.824            $15.815
Number of Units Outstanding, End of Period                                     77,514          1,176,171

AIM V.I. GROWTH AND INCOME SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.684
Accumulation Unit Value, End of Period                                        $11.684            $15.514
Number of Units Outstanding, End of Period                                    112,627          1,472,961

<PAGE>

AIM V.I. HIGH YIELD SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $9.099
Accumulation Unit Value, End of Period                                         $9.099            $9.946
Number of Units Outstanding, End of Period                                     61,267           374,834

AIM V.I. INTERNATIONAL EQUITY SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $9.674
Accumulation Unit Value, End of Period                                         $9.674            14.835
Number of Units Outstanding, End of Period                                     34,979           294,021

AIM V.I. MONEY MARKET SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.221
Accumulation Unit Value, End of Period                                        $10.221            $10.582
Number of Units Outstanding, End of Period                                    104,779            284,221

AIM V.I. VALUE SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                   $10.000           $11.747
Accumulation Unit Value, End of Period                                         $11.747           $15.091
Number of Units Outstanding, End of Period                                     139,946         1,901,840


* The Contracts  were first offered for sale on June 2, 1998.  The  Accumulation
Unit Values in this table  reflect a mortality  and expense risk charge of 1.00%
and an administrative  expense charge of 0.10%. All of the Variable Sub-Accounts
commenced  operations on or before June 2, 1998,  except the AIM V.I. Blue Chip,
AIM V.I.Dent  Demographic Trends, AIM V.I. Global Growth and Income and AIM V.I.
Telecommunications    and   Technology    Variable    Sub-Accounts   ("the   New
Sub-Accounts").  No  Accumulation  Unit Data is shown  for the New  Sub-Accounts
which commenced operations on December 29, 1999.


</TABLE>

<PAGE>



            Accumulation Unit Values and Number of Accumulation Units
            Outstanding for Each Variable Sub-Account Since Inception


                 Basic Policy plus Enhanced Death Benefit Rider
<TABLE>
<CAPTION>

<S>                                                                           <C>                <C>

For the years beginning January 1* and ending December 31                      1998               1999

AIM V.I. AGGRESSIVE GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.549
Accumulation Unit Value, End of Period                                        $10.549            $15.063
Number of Units Outstanding, End of Period                                     57,688            314,748

AIM V.I. BALANCED SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.285
Accumulation Unit Value, End of Period                                        $11.285            $13.289
Number of Units Outstanding, End of Period                                    221,488          1,149,345

AIM V.I. CAPITAL APPRECIATION SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.025
Accumulation Unit Value, End of Period                                        $11.025            $15.737
Number of Units Outstanding, End of Period                                    223,554          1,105,150

AIM V.I. CAPITAL DEVELOPMENT SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000             $9.902
Accumulation Unit Value, End of Period                                         $9.902            $12.619
Number of Units Outstanding, End of Period                                     55,046            195,123

AIM V.I. DIVERSIFIED INCOME SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000             $9.861
Accumulation Unit Value, End of Period                                         $9.861             $9.547
Number of Units Outstanding, End of Period                                     40,007            277,036

AIM V.I. GLOBAL UTILITIES SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.791
Accumulation Unit Value, End of Period                                        $10.791            $14.226
Number of Units Outstanding, End of Period                                     21,377            146,531

AIM V.I. GOVERNMENT SECURITIES SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.693
Accumulation Unit Value, End of Period                                        $10.693            $10.130
Number of Units Outstanding, End of Period                                     15,866            330,314

AIM V.I. GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.810
Accumulation Unit Value, End of Period                                        $11.810            $15.765
Number of Units Outstanding, End of Period                                    182,188          1,590,694

AIM V.I. GROWTH AND INCOME SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.671
Accumulation Unit Value, End of Period                                        $11.671            $15.465
Number of Units Outstanding, End of Period                                    276,962          2,087,079



<PAGE>


AIM V.I. HIGH YIELD SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000             $9.088
Accumulation Unit Value, End of Period                                         $9.088             $9.914
Number of Units Outstanding, End of Period                                    103,485            361,905

AIM V.I. INTERNATIONAL EQUITY SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000             $9.663
Accumulation Unit Value, End of Period                                         $9.663            $14.788
Number of Units Outstanding, End of Period                                     63,514            374,374

AIM V.I. MONEY MARKET SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $10.209
Accumulation Unit Value, End of Period                                        $10.209            $10.549
Number of Units Outstanding, End of Period                                    111,395            250,507

AIM V.I. VALUE SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                  $10.000            $11.733
Accumulation Unit Value, End of Period                                        $11.733            $15.044
Number of Units Outstanding, End of Period                                    350,953          2,912,880

* The Contracts,  including the Enhanced Death Benefit Rider, were first offered
for sale on June 2, 1998. The  Accumulation  Unit Values in this table reflect a
mortality and expense risk charge of 1.20% and an administrative  expense charge
of 0.10%.  All of the Variable  Sub-Accounts  commenced  operations on or before
June 2, 1998, except the Blue Chip, Dent Demographic  Trends,  Global Growth and
Income and  Telecommunications  and Technology  Variable  Sub-Accounts ("the New
Sub-Accounts").  No  Accumulation  Unit Data is shown  for the New  Sub-Accounts
which commenced operations on January 3, 2000.



<PAGE>



                                     Accumulation Unit Values and Number of Accumulation Units
                                     Outstanding for Each Variable Sub-Account Since Inception

                               Basic Policy plus Enhanced Death and Income Benefit Combination Rider


For the years beginning January 1* and ending December 31                         1998            1999

AIM V.I. AGGRESSIVE GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $10.536
Accumulation Unit Value, End of Period                                          $10.536          $15.016
Number of Units Outstanding, End of Period                                       63,177          256,328

AIM V.I. BALANCED SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $11.272
Accumulation Unit Value, End of Period                                          $11.272          $13.247
Number of Units Outstanding, End of Period                                      164,576          696,094

AIM V.I. CAPITAL APPRECIATION SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $11.012
Accumulation Unit Value, End of Period                                          $11.012          $15.687
Number of Units Outstanding, End of Period                                      203,098          691,747

AIM V.I. CAPITAL DEVELOPMENT SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000           $9.891
Accumulation Unit Value, End of Period                                           $9.891          $12.579
Number of Units Outstanding, End of Period                                       42,275           94,929

AIM V.I. DIVERSIFIED INCOME SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000           $9.850
Accumulation Unit Value, End of Period                                           $9.850           $9.516
Number of Units Outstanding, End of Period                                       25,503          156,436

AIM V.I. GLOBAL UTILITIES SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $10.778
Accumulation Unit Value, End of Period                                          $10.778          $14.181
Number of Units Outstanding, End of Period                                       16,742           81,745

AIM V.I. GOVERNMENT SECURITIES SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $10.681
Accumulation Unit Value, End of Period                                          $10.681          $10.098
Number of Units Outstanding, End of Period                                       28,964          192,103

AIM V.I. GROWTH SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $11.797
Accumulation Unit Value, End of Period                                          $11.797          $15.715
Number of Units Outstanding, End of Period                                      233,659        1,047,361

AIM V.I. GROWTH AND INCOME SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $11.657
Accumulation Unit Value, End of Period                                          $11.657          $15.416
Number of Units Outstanding, End of Period                                      384,306        1,263,124



<PAGE>




AIM V.I. HIGH YIELD SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $9.077
Accumulation Unit Value, End of Period                                           $9.077          $9.883
Number of Units Outstanding, End of Period                                       55,345         246,594

AIM V.I. INTERNATIONAL EQUITY SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000           $9.651
Accumulation Unit Value, End of Period                                           $9.651          $14.741
Number of Units Outstanding, End of Period                                       63,643          266,112

AIM V.I. MONEY MARKET SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $10.197
Accumulation Unit Value, End of Period                                          $10.197          $10.516
Number of Units Outstanding, End of Period                                       61,481          209,100

AIM V.I. VALUE SUB-ACCOUNT
Accumulation Unit Value, Beginning of Period                                    $10.000          $11.719
Accumulation Unit Value, End of Period                                          $11.719          $14.996
Number of Units Outstanding, End of Period                                      397,504        1,742,887
</TABLE>

* The Contracts,  including the Enhanced  Death and Income  Benefit  Combination
Rider, were first offered for sale on June 2, 1998. The Accumulation Unit Values
in this  table  reflect a  mortality  and  expense  risk  charge of 1.40% and an
administrative  expense  charge  of  0.10%.  All  of the  Variable  Sub-Accounts
commenced  operations  on or before  June 2, 1998,  except  the Blue Chip,  Dent
Demographic  Trends,  Global  Growth  and  Income  and   Telecommunications  and
Technology Variable Sub-Accounts ("the New Sub-Accounts").  No Accumulation Unit
Data is shown for the New Sub-Accounts which commenced  operations on January 3,
2000.



<PAGE>



                                   APPENDIX B

                             MARKET VALUE ADJUSTMENT

The Market Value Adjustment is based on the following:

       I = the Treasury Rate, for a maturity equal to the Guarantee Period,  for
       the week preceding the establishment of the Guarantee Period.

       N = the number of whole and  partial  years from the date we receive  the
       withdrawal,  transfer or death benefit request,  or from the Payout Start
       Date, to the end of the Guarantee Period.

       J = the Treasury Rate, for a maturity equal to the Guarantee Period,  for
       the  week  preceding  the  receipt  of the  withdrawal,  transfer,  death
       benefit, or income payment request.

       "Treasury Rate" means the U.S.  Treasury Note Constant  Maturity yield as
       reported in Federal Reserve Bulletin Release H.15.

The Market Value Adjustment factor is determined from the following formula:

                                                          .9 X (I - J) X N

To determine  the Market  Value  Adjustment,  we will  multiply the Market Value
Adjustment  factor by the amount  transferred,  withdrawn (in excess of the Free
Withdrawal Amount),  paid as a death benefit, or applied to an Income Plan, from
a Guarantee  Period at any time other than  during the 30 day period  after such
Guarantee Period expires.


<PAGE>



                       EXAMPLES OF MARKET VALUE ADJUSTMENT

Purchase Payment:                      $10,000 allocated to a Guarantee Period
Guarantee Period:                      5 years
Guaranteed Interest Rate:              4.50%
5 Year Treasury Rate (at the
time the Guarantee
period was established):               4.50%
Full Surrender:                        End of Contract Year 3

NOTE: These examples assume that premium taxes are not applicable.
<TABLE>
<CAPTION>

                                           EXAMPLE 1: (Assumes declining interest rates)

<S>  <C>                                                             <C>
Step 1. Calculate Contract Value at End of Contract Year 3:          $10,000.00 X (1.0450)^3 = $11,411.66

Step 2. Calculate the Free Withdrawal Amount:                        .15% X $10,000 X (1.045)^2 = $1,638.04

Step 3. Calculate the Withdrawal Charge:                             = .06 X ($10,000.00 - $1,638.04) = $501.72

Step 4. Calculate the Market Value Adjustment:                       I    =            4.5%
                                                                     J    =            4.2%

                                                                                         730 Days
                                                                     N    =              365 days      = 2

                                                                     Market Value Adjustment Factor: .9 X (I-J) X N

                                                                     = .9 X (.045 - .042) X (2) = .0054

                                                                     Market Value Adjustment =  Market Value Adjustment
                                                                     Factor X Amount Subject to Market Value Adjustment:

                                                                     = .0054 X ($11,411.66 - $1,638.04) = $52.78


Step 5. Calculate the amount received by Contract owner as a
result of full withdrawal at the end of Contract Year 3:             $11,411.66 - $501.72 + $52.78 = $10,962.72

</TABLE>



<PAGE>


<TABLE>
<CAPTION>

                                             EXAMPLE 2: (Assumes rising interest rates)

<S>  <C>                                                              <C>              <C>
Step 1. Calculate Contract Value at End of Contract Year 3:           $10,000.00 X (1.045)^3 = $11,411.66

Step 2. Calculate the Free Withdrawal Amount:                         .15% X $10,000 X(1.45^2) = $1,638.04

Step 3. Calculate the Withdrawal Charge:                              .06 X ($10,000.00 - $1,638.04) = $501.72

Step 4. Calculate the Market Value Adjustment:                        I    =    4.5%
                                                                      J    =    4.8%

                                                                                730 days
                                                                      N    =    365 days      = 2

                                                                      Market Value Adjustment Factor: .9 X (I-J) X N

                                                                      = .9 X (.045 - .048) X (2) = -.0054

                                                                      Market Value Adjustment = Market Value Adjustment
                                                                      Factor X Amount Subject to Market Value Adjustment

                                                                      = -.0054 X ($11,411.66 - $1,638.04) = - $52.78

Step 5. Calculate the amount received by Contract owner as a
result of full withdrawal at the end of Contract Year 3:              $11,411.66 - $501.72 - $52.78 = $10,857.16

</TABLE>



<PAGE>



                       STATEMENT OF ADDITIONAL INFORMATION
                                TABLE OF CONTENTS

Description

Additions, Deletions or Substitutions of Investments.
The Contract.
             Purchases of Contracts
             Tax-free Exchanges (1035 Exchanges, Rollovers and Transfers)
Performance Information
             Standardized Total Returns
             Non-standardized Total Returns
             Adjusted Historical Total Returns
Calculation of Accumulation Unit Values
             Net Investment Factor
Calculation of Variable Income Payments
             Calculation of Annuity Unit Values
General Matters
             Incontestability
             Settlements
             Safekeeping of the Variable Account's Assets
             Premium Taxes
             Tax Reserves
Federal Tax Matters
             Taxation of Glenbrook Life and Annuity Company
             Exceptions to the Non-Natural Owner Rule
             IRS Required Distribution at Death Rules
Qualified Plans
             Individual Retirement Annuities.
             Roth Individual Retirement Annuities
             Simplified Employee Pension Plans
             Savings Inventive Match Plans for Employees (Simple Plans)
             Tax Sheltered Annuities
             Corporate and Self-Employed Pension and Profit Sharing Plans
             State and Local Government and Tax-Exempt Organization
                Deferred Compensation Plans
Experts
Financial Statements
<PAGE>

This  prospectus  does not constitute an offering in any  jurisdiction  in which
such offering may not lawfully be made.  We do not  authorize  anyone to provide
any  information  or  representations  regarding the offering  described in this
prospectus other than as contained in this prospectus.


                   [back cover]


<PAGE>
                      THE AIM LIFETIME PLUS(SM) II VARIABLE ANNUITY

Glenbrook Life and Annuity Company          Statement of Additional Information
Glenbrook Life and Annuity Company                   dated May 1, 2000
Separate  Account A
Post Office Box 94039
Palatine,  IL 60094-4039
1(800) 776 - 6978

This  Statement of Additional  Information  supplements  the  information in the
prospectus for the AIM Lifetime Plus(SM) II Variable Annuity.  This Statement of
Additional  Information  is not a  prospectus.  You  should  read  it  with  the
prospectus,  dated May 1, 2000, for the Contract. You may obtain a prospectus by
calling or writing us at the address or telephone number listed above.

Except as otherwise  noted,  this Statement of Additional  Information  uses the
same defined terms as the prospectus.


<PAGE>




                                TABLE OF CONTENTS


Additions, Deletions or Substitutions of Investments
The Contract
             Purchases of Contracts
             Tax-free Exchanges (1035 Exchanges, Rollovers and Transfers)
Performance Information
             Standardized Total Returns
             Non-standardized Total Returns
             Adjusted Historical Total Returns
Calculation of Accumulation Unit Values
             Net Investment Factor
Calculation of Variable Income Payments
             Calculation of Annuity Unit Values
General Matters
             Incontestability
             Settlements
             Safekeeping of the Variable Account's Assets
             Premium Taxes
             Tax Reserves
Federal Tax Matters
             Taxation of Glenbrook Life and Annuity Company
             Exceptions to the Non-Natural Owner Rule
             IRS Required Distribution at Death Rules
Qualified Plans
             Individual Retirement Annuities.
             Roth Individual Retirement Annuities
             Simplified Employee Pension Plans
             Savings Inventive Match Plans for Employees (Simple Plans)
             Tax Sheltered Annuities
             Corporate and Self-Employed Pension and Profit Sharing Plans
             State and Local Government and Tax-Exempt Organization
                Deferred Compensation Plans
Experts
Financial Statements




<PAGE>



ADDITIONS, DELETIONS OR SUBSTITUTIONS OF INVESTMENTS

We may  add,  delete,  or  substitute  the  Fund  shares  held  by any  Variable
Sub-Account to the extent the law permits.  We may substitute shares of any Fund
with those of another Fund of the same or different mutual fund if the shares of
the Fund are no longer available for investment,  or if we believe investment in
any Fund would  become  inappropriate  in view of the  purposes of the  Variable
Account.

We will not substitute  shares  attributable to a Contract owner's interest in a
Variable  Sub-Account  until we have notified the Contract  owner of the change,
and until the Securities and Exchange Commission has approved the change, to the
extent such  notification and approval are required by law. Nothing contained in
this Statement of Additional Information shall prevent the Variable Account from
purchasing  other  securities for other series or classes of contracts,  or from
effecting a  conversion  between  series or classes of contracts on the basis of
requests made by Contract owners.

We also may establish  additional  Variable  Sub-Accounts  or series of Variable
Sub-Accounts.  Each additional  Variable  Sub-Account would purchase shares in a
new Fund of the same or different  mutual fund.  We may  establish  new Variable
Sub-Accounts when we believe marketing needs or investment  conditions  warrant.
We determine the basis on which we will offer any new Variable  Sub-Accounts  in
conjunction with the Contract to existing  Contract owners. We may eliminate one
or more Variable  Sub-Accounts  if, in our sole  discretion,  marketing,  tax or
investment conditions so warrant.

We may, by appropriate endorsement,  change the Contract as we believe necessary
or appropriate to reflect any substitution or change in the Funds. If we believe
the best interests of persons having voting rights under the Contracts  would be
served,  we may operate the Variable  Account as a management  company under the
Investment  Company Act of 1940 or we may withdraw its  registration  under such
Act if such registration is no longer required.




<PAGE>
THE CONTRACT

The Contract is primarily  designed to aid  individuals  in long-term  financial
planning.  You can use it for  retirement  planning  regardless  of whether  the
retirement plan qualifies for special federal income tax treatment.

PURCHASE OF CONTRACTS

We offer the Contracts to the public  through banks as well as brokers  licensed
under the  federal  securities  laws and state  insurance  laws.  The  principal
underwriter for the Variable  Account,  Allstate Life Financial  Services,  Inc.
("ALFS"),  distributes  the  Contracts.  ALFS is an affiliate of Glenbrook.  The
offering of the Contracts is continuous.  We do not anticipate discontinuing the
offering of the Contracts, but we reserve the right to do so at any time.

TAX-FREE EXCHANGES (1035 EXCHANGES, ROLLOVERS AND TRANSFERS)

We accept purchase payments that are the proceeds of a Contract in a transaction
qualifying for a tax-free  exchange  under Section 1035 of the Internal  Revenue
Code ("Code"). Except as required by federal law in calculating the basis of the
Contract,  we do not  differentiate  between Section 1035 purchase  payments and
non-Section 1035 purchase payments.

We  also  accept   "rollovers"  and  transfers  from  Contracts   qualifying  as
tax-sheltered  annuities ("TSAs"),  individual  retirement annuities or accounts
("IRAs"), or any other Qualified Contract that is eligible to "rollover" into an
IRA.  We  differentiate  among  non-Qualified  Contracts,  TSAs,  IRAs and other
Qualified Contracts to the extent necessary to comply with federal tax laws. For
example, we restrict the assignment, transfer, or pledge of TSAs and IRAs so the
Contracts will continue to qualify for special tax  treatment.  A Contract owner
contemplating  any such  exchange,  rollover or  transfer  of a Contract  should
contact a competent tax adviser with respect to the potential  effects of such a
transaction.




<PAGE>
PERFORMANCE INFORMATION

From time to time we may advertise the "standardized,"  "non-standardized,"  and
"adjusted historical" total returns of the Variable  Sub-Accounts,  as described
below.  Please remember that past performance is not an estimate or guarantee of
future  performance and does not necessarily  represent the actual experience of
amounts  invested by a particular  Contract  owner.  Also,  please note that the
performance figures shown do not reflect any applicable taxes.

STANDARDIZED TOTAL RETURNS

A Variable Sub-Account's standardized total return represents the average annual
total  return  of  that  Sub-Account  over  a  particular   period.  We  compute
standardized  total  return by finding  the annual  percentage  rate that,  when
compounded  annually,  will accumulate a hypothetical $1,000 purchase payment to
the  redeemable  value at the end of the one, five or ten year period,  or for a
period from the date of commencement of the Variable  Sub-Account's  operations,
if shorter than any of the foregoing. We use the following formula prescribed by
the SEC for computing standardized total return:

                              $1,000(1 + T)n = ERV

where:

          T       =    average annual total return

          ERV     =    ending redeemable value of a hypothetical $1,000 payment
                       made at the beginning of 1, 5, or 10 year periods or
                       shorter period

          n       =    number of years in the period

         $1000    =    hypothetical $1,000 investment

When factoring in the withdrawal charge assessed upon redemption, we exclude the
Free Withdrawal  Amount,  which is the amount you can withdraw from the Contract
without paying a withdrawal charge. We also use the withdrawal charge that would
apply  upon  redemption  at the end of each  period.  Thus,  for  example,  when
factoring  in the  withdrawal  charge for a one year  standardized  total return
calculation,  we would use the withdrawal charge that applies to a withdrawal of
a purchase payment made one year prior.

When  factoring in the contract  maintenance  charge,  we pro rate the charge by
dividing (i) the contract  maintenance  charge by (ii) the average Contract size
of $57,476.  We then multiply the resulting  percentage by a hypothetical $1,000
investment.

The  standardized  total returns for the Variable  Sub-Accounts  for the periods
ended December 31, 1999 are set out below.

The Contracts  were first offered to the public on June 2, 1998.  Certain of the
Variable  Sub-Accounts  were  available  for  investment  prior  to  that  date.
Accordingly,  performance  figures for the Variable  Sub-Accounts  prior to that
date reflect the historical performance of the Variable  Sub-Accounts,  adjusted
to reflect the current level of charges that apply to the Variable  Sub-Accounts
under the Contracts,  as well as the withdrawal and contract maintenance charges
described above. No standardized  total returns are shown for the AIM V.I. Money
Market Variable Sub-Account.  In addition, no standardized returns are shown for
the AIM V.I. Blue Chip, Dent Demographic  Trends,  Global Growth and Income, and
Telecommunicaitons   and  Technology   Variable   Sub-Accounts  which  commenced
operations on January 3, 2000.


(Without  the Enhanced  Death  Benefit  Option or the Enhanced  Death and Income
Benefit Combination Option)

<TABLE>
<CAPTION>

                                                                                             10 Years or Since
Variable Sub-Account                              One Year              Five Years          Inception (if less)*

<S>                                                 <C>                  <C>                       <C>
AIM V.I. Aggressive Growth                          34.52%                 N/A                      18.22%
AIM V.I. Balanced                                   10.93%                 N/A                      13.99%
AIM V.I. Blue Chip                                     N/A                 N/A                         N/A
AIM V.I. Capital Appreciation                       34.47%                 N/A                      19.58%
AIM V.I. Capital Development                        20.04%                 N/A                       5.96%
AIM V.I. Dent Demographic Trends                       N/A                 N/A                         N/A
AIM V.I. Diversified Income                         -3.05%                 N/A                       2.99%
AIM V.I. Global Growth and Income                      N/A                 N/A                         N/A
AIM V.I. Global Utilities                           24.19%                 N/A                      18.29%
AIM V.I. Government Securities                      -5.13%                 N/A                       2.00%
AIM V.I. Growth                                     25.75%                 N/A                      24.63%
AIM V.I. Growth & Income                            24.83%                 N/A                      23.25%
AIM V.I. High Yield                                  2.76%                 N/A                      -3.59%
AIM V.I. International Equity                       44.18%                 N/A                      20.35%
AIM V.I. Telecommunications and Technology             N/A                 N/A                         N/A
AIM V.I. Value                                      20.78%                 N/A                      21.25%
</TABLE>

* The Variable  Sub-Accounts  commenced  operations on December 4, 1995 with the
exception of the AIM V.I. Aggressive Growth, Balanced,  Capital Appreciation and
High Yield Sub-Accounts,  which commenced operations on May 1, 1998, and the AIM
V.I.  Blue  Chip,  Dent  Demographic  Trends,  Global  Growth  and  Income,  and
Telecommunications  and  Technology  Variable   Sub-Accounts,   which  commenced
operations on January 3, 2000.


(With the Enhanced Death Benefit Option)
<TABLE>
<CAPTION>


                                                                                              10 Years or Since
Variable Sub-Account                                   One Year        Five Years            Inception (if less)*

<S>                                                      <C>           <C>                    <C>
AIM V.I. Aggressive Growth                               34.25%              N/A                       17.99%
AIM V.I. Balanced                                        10.70%              N/A                       13.76%
AIM V.I. Blue Chip                                          N/A              N/A                          N/A
AIM V.I. Capital Appreciation                            34.20%              N/A                       19.34%
AIM V.I. Capital Development                             19.80%              N/A                        5.75%
AIM V.I. Dent Demographic Trends                            N/A              N/A                          N/A
AIM V.I. Diversified Income                              -3.24%              N/A                        2.78%
AIM V.I. Global Growth and Income                           N/A              N/A                          N/A
AIM V.I. Global Utilities                                23.94%              N/A                       18.06%
AIM V.I. Government Securities                           -5.32%              N/A                        1.80%
AIM V.I. Growth                                          25.49%              N/A                       24.38%
AIM V.I. Growth & Income                                 24.58%              N/A                       23.00%
AIM V.I. High Yield                                       2.55%              N/A                       -3.78%
AIM V.I. International Equity                            43.89%              N/A                       20.11%
AIM V.I. Telecommunications and Technology                  N/A              N/A                          N/A
AIM V.I. Value                                           20.54%              N/A                       21.01%

</TABLE>


*The inception dates of the Variable  Sub-Accounts appear in the footnote to the
preceding table.


(With the Enhanced Death and Income Benefit Combination Option)

<TABLE>
<CAPTION>

                                                                                          10 Years or Since
Variable Sub-Account                                   One Year        Five Years        Inception (if less)*

<S>                                                      <C>            <C>                 <C>
AIM V.I. Aggressive Growth                               33.99%              N/A             17.75%
AIM V.I. Balanced                                        10.48%              N/A             13.53%
AIM V.I. Blue Chip                                          N/A              N/A                N/A
AIM V.I. Capital Appreciation                            33.93%              N/A             19.10%
AIM V.I. Capital Development                             19.56%              N/A              5.54%
AIM V.I. Dent Demographic Trends                            N/A              N/A                N/A
AIM V.I. Diversified Income                              -3.44%              N/A              2.57%
AIM V.I. Global Growth and Income                           N/A              N/A                N/A
AIM V.I. Global Utilities                                23.69%              N/A             17.82%
AIM V.I. Government Securities                           -5.51%              N/A              1.59%
AIM V.I. Growth                                          25.24%              N/A             24.13%
AIM V.I. Growth & Income                                 24.33%              N/A             22.75%
AIM V.I. High Yield                                       2.35%              N/A             -3.97%
AIM V.I. International Equity                            43.60%              N/A             19.87%
AIM V.I. Telecommunications and Technology                  N/A              N/A                N/A
AIM V.I. Value                                           20.30%              N/A             20.77%
</TABLE>


*The inception dates of the Variable  Sub-Accounts appear in the footnote to the
first table under "Standardized Total Returns."

NON-STANDARDIZED TOTAL RETURNS

From time to time, we also may quote rates of return that reflect changes in the
values of each Variable  Sub-Account's  accumulation  units.  We may quote these
"non-standardized total returns" on an annualized,  cumulative,  year by year or
other basis. These rates of return take into account asset-based  charges,  such
as the mortality  and expense risk charge and  administration  charge.  However,
these rates of return do not reflect withdrawal  charges,  contract  maintenance
charges, or any taxes. Such charges, if reflected,  would reduce the performance
shown.

Annualized  returns reflect the rate of return that,  when compounded  annually,
would  equal the  cumulative  rate of return  for the period  shown.  We compute
annualized returns according to the following formula:

                  Annualized Return = (l + r) l/n -1

                  Where r = cumulative rate of return for the period shown and
                  n =  number of years in the period

The  method of  computing  annualized  rates of return  is  similar  to that for
computing standardized performance,  described above, except rather than using a
hypothetical  $1,000 investment and the ending reademable value thereof,  we use
the changes in value of an accumulation unit.

Cumulative  rates  of  return  reflect  the  cumulative  change  in  value of an
accumulation  unit over the period shown.  Year-by-year  rates of return reflect
the  change in value of an  accumulation  unit  during  the  course of each year
shown. We compute these retruns by dividing the  accumulation  unit value at the
end of each period  shown,  by the  accumulation  unit value at the beginning of
that period,  and  subtracting  one. We compute other total returns on a similar
basis.

We may quote non-standardized total returns for 1, 3, 5, and 10 year periods, or
period  since  inception of the Variable  Sub-Account's  operations,  as well as
other periods, such as "year to date" (prior calendar year end to the day stated
in the advertisement); "year to most recent quarter" (prior to calendar year end
to the end of the most recent  quarter);  the prior  calendar  year; and the "n"
most recent calendar years.

The non standardized  annualized total returns for the Variable Sub-Accounts for
the period  ended  December  31, 1999 are set out below.  The Contract was first
offered for sale as of June 2, 1998.  Certain of the Variable  Sub-Accounts were
available for investment prior to that date, Accordingly,  the performance shown
reflects the historical  performance of the Variable  Sub-Accounts,  adjusted to
reflect the current asset-based charges that apply to the Variable  Sub-Accounts
under the Contracts (but not the withdrawal charge,  contract maintenance charge
or taxes). No non-standardized annualized returns are shown for the Money Market
Variable Sub-Account. In addition, no non-standardized returns are shown for the
AIM V.I. Blue Chip,  Dent  Demographic  Trends,  Global  Growth and Income,  and
Telecommunicaitons   and  Technology   Variable   Sub-Accounts  which  commenced
operations on January 3, 2000.

(Without  the Enhanced  Death  Benefit  Option or the Enhanced  Death and Income
Benefit Combination Option)
<TABLE>
<CAPTION>

                                                                                         10 Years or Since
Variable Sub-Account                                 One Year      Five Years         Inception (if less)*

<S>                                                    <C>         <C>                 <C>
AIM V.I. Aggressive Growth                             43.09%          N/A                   22.73%
AIM V.I. Balanced                                      18.00%          N/A                   18.33%
AIM V.I. Blue Chip                                     N/A             N/A                      N/A
AIM V.I. Capital Appreciation                          43.03%          N/A                   20.92%
AIM V.I. Capital Development                           27.69           N/A                   10.01%
AIM V.I. Dent Demographic Trends                       N/A             N/A                      N/A
AIM V.I. Diversified Income                            -2.99%          N/A                    4.15%
AIM V.I. Global Growth and Income                      N/A             N/A                      N/A
AIM V.I. Global Utilities                              32.10%          N/A                   19.62%
AIM V.I. Government Securities                         -5.08%          N/A                    3.16%
AIM V.I. Growth                                        33.76%          N/A                   26.02%
AIM V.I. Growth & Income                               32.78%          N/A                   24.62%
AIM V.I. High Yield                                    9.32%           N/A                    0.10%
AIM V.I. International Equity                          53.35%          N/A                   21.69%
AIM V.I. Telecommunications and Technology             N/A             N/A                      N/A
AIM V.I. Value                                         28.48%          N/A                   22.60%

</TABLE>

*The inception dates of the Variable  Sub-Accounts appear in the footnote to the
first table under "Standardized Total Returns."

(With the Enhanced Death Benefit Option)

<TABLE>
<CAPTION>

                                                                                        10 Years or Since
Variable Sub-Account                                One Year         Five Years       Inception (if less)*

<S>                                                     <C>          <C>               <C>
AIM V.I. Aggressive Growth                              42.80%        N/A                      22.48%
AIM V.I. Balanced                                       17.76%        N/A                      18.09%
AIM V.I. Blue Chip                                         N/A        N/A                         N/A
AIM V.I. Capital Appreciation                           42.75%        N/A                      20.68%
AIM V.I. Capital Development                            27.43%        N/A                       9.79%
AIM V.I. Dent Demographic Trends                           N/A        N/A                         N/A
AIM V.I. Diversified Income                             -3.19%        N/A                       3.95%
AIM V.I. Global Growth and Income                          N/A        N/A                         N/A
AIM V.I. Global Utilities                               31.84%        N/A                      19.38%
AIM V.I. Government Securities                          -5.27%        N/A                       2.95%
AIM V.I. Growth                                         33.49%        N/A                      25.77%
AIM V.I. Growth & Income                                32.51%        N/A                      24.37%
AIM V.I. High Yield                                      9.10%        N/A                      -0.10%
AIM V.I. International Equity                           53.05%        N/A                      21.45%
AIM V.I. Telecommunications and Technology                 N/A        N/A                         N/A
AIM V.I. Value                                          28.22%        N/A                      22.36%

</TABLE>

*The inception dates of the Variable  Sub-Accounts appear in the footnote to the
first table under "Standardized Total Returns."

(With the Enhanced Death and Income Benefit Combination Option)
<TABLE>
<CAPTION>


                                                                                       10 Years or Since
Variable Sub-Account                                One Year            Five Years     Inception (if less)*

<S>                                                    <C>              <C>            <C>
AIM V.I. Aggressive Growth                             42.52%              N/A             22.24%
AIM V.I. Balanced                                      17.53%              N/A             17.85%
AIM V.I. Blue Chip                                        N/A              N/A                N/A
AIM V.I. Capital Appreciation                          42.46%              N/A             20.43%
AIM V.I. Capital Development                           27.18%              N/A              9.57%
AIM V.I. Dent Demographic Trends                          N/A              N/A                N/A
AIM V.I. Diversified Income                            -3.38%              N/A              3.74%
AIM V.I. Global Growth and Income                         N/A              N/A                N/A
AIM V.I. Global Utilities                              31.58%              N/A             19.14%
AIM V.I. Government Securities                         -5.45%              N/A              2.75%
AIM V.I. Growth                                        33.22%              N/A             25.52%
AIM V.I. Growth & Income                               32.25%              N/A             24.12%
AIM V.I. High Yield                                     8.88%              N/A             -0.30%
AIM V.I. International Equity                          52.74%              N/A             21.21%
AIM V.I. Telecommunications and Technology                N/A              N/A                N/A
AIM V.I. Value                                         27.97%              N/A             22.12%

</TABLE>

*The inception dates of the Variable  Sub-Accounts appear in the footnote to the
first table under "Standardized Total Returns."


<PAGE>
ADJUSTED HISTORICAL TOTAL RETURNS

We may  advertise  the  total  return  for  periods  prior to the date  that the
Variable  Sub-Accounts  commenced  operations.  We will calculate such "adjusted
historical  total returns"  using the  historical  performance of the underlying
Funds and  adjusting  such  performance  to reflect the current level of charges
that  apply to the  Variable  Sub-Accounts  under  the  Contract,  the  contract
maintenance charge, and the appropriate withdrawal charge.

The adjusted  historical  total  returns for the Variable  Sub-Accounts  for the
periods ended December 31, 1999 are set out below. No adjusted  historical total
returns are shown for the AIM V.I. Money Market Variable Sub-Account.

(Without  the Enhanced  Death  Benefit  Option or the Enhanced  Death and Income
Benefit Combination Option)

<TABLE>
<CAPTION>
                                                                                            10 Years or Since
Variable Sub-Account                               One Year           Five Years         Inception of Fund (if less)*
<S>                                                  <C>               <C>               <C>
AIM V.I. Aggressive Growth                           34.52%                  N/A                    18.22%
AIM V.I. Balanced                                    10.93%                  N/A                    13.99%
AIM V.I. Blue Chip****                                 N/A                   N/A                       N/A
AIM V.I. Capital Appreciation                        34.47%               23.12%                    20.49%
AIM V.I. Capital Development                         20.04%                  N/A                     5.96%
AIM V.I. Dent Demographic Trends****                    N/A                  N/A                       N/A
AIM V.I. Diversified Income                          -3.05%                5.70%                     4.32%
AIM V.I. Global Growth and Income**                  -7.16%               11.04%                     9.95%
AIM V.I. Global Utilities                            24.19%               19.47%                    16.39%
AIM V.I. Government Securities                       -5.13%                4.23%                     3.07%
AIM V.I. Growth                                      25.75%               27.10%                    21.08%
AIM V.I. Growth & Income**                           24.83%               25.66%                    22.34%
AIM V.I. High Yield                                   2.76%                  N/A                    -3.59%
AIM V.I. International Equity                        44.18%               19.53%                    17.03%
AIM V.I. Telecommunications and Technology***        92.09%               31.02%                    27.54%
AIM V.I. Value                                       20.78%               24.73%                    21.22%
</TABLE>

* The inception dates of the Funds  corresponding  to the Variable  Sub-Accounts
are as follows:

          AIM V.I. Aggressive Growth Fund                    May 1, 1998
          AIM V.I. Balanced Fund                             May 1, 1998
          AIM V.I. Blue Chip                                 December 29, 1999
          AIM V.I. Capital Appreciation Fund                 May 5, 1993
          AIM V.I. Capital Development Fund                  May 1, 1998
          AIM V.I. Dent Demographics                         December 29, 1999
          AIM V.I. Diversified Income Fund                   May 5, 1993
          AIM V.I. Global Growth and Income                  February 10, 1993
          AIM V.I. Global Utilities Fund                     May 2, 1994
          AIM V.I. Government Securities Fund                May 5, 1993
          AIM V.I. Growth Fund                               May 5, 1993
          AIM V.I. Growth & Income Fund                      May 2, 1994
          AIM V.I. High Yield Fund                           May 1, 1998
          AIM V.I. International Equity Fund                 May 5, 1993
          AIM V.I. Telecommunications and Technology Fund    October 18, 1993
          AIM V.I. Value Fund                                May 5, 1993


**The performance figures for this Variable Sub-Account is not annualized.

*** Effective May 1, 2000, the AIM V.I. Telecommunications Fund changed its name
to the AIM V.I. Telecommunications and Technology Fund to reflect changes in its
investment  policies.  Performance  shown for this fund reflects the  investment
policies of the fund prior to the change.

****No adjusted  historical returns are shown for the AIM V.I. Blue Chip and the
AIM  V.I.  Dent  Demographic   Trends  Variable   Sub-Accounts  which  commenced
operations on January 3, 2000.
<PAGE>


<TABLE>
<CAPTION>

(With the Enhanced Death Benefit Option)*
                                                                                  10 Years or
Variable Sub-Account                          One Year       Five Years          Since Inception of Fund (if less)*

<S>                                             <C>           <C>                  <C>
AIM V.I. Aggressive Growth                      34.25%            N/A               17.99%
AIM V.I. Balanced                               10.70%            N/A               13.76%
AIM V.I. Blue Chip                                 N/A            N/A                  N/A
AIM V.I. Capital Appreciation                   34.20%          22.87%              20.25%
AIM V.I. Capital Development                    19.80%            N/A                5.75%
AIM V.I. Dent Demographic Trends                   N/A            N/A                  N/A
AIM V.I. Diversified Income                     -3.24%           5.49%               4.11%
AIM V.I. Global Growth and Income               -7.35%          10.82%               9.73%
AIM V.I. Global Utilities                       23.94%          19.23%              16.16%
AIM V.I. Government Securities                  -5.32%           4.02%               2.86%
AIM V.I. Growth                                 25.49%          26.84%              20.83%
AIM V.I. Growth & Income**                      24.58%          25.41%              22.10%
AIM V.I. High Yield                              2.55%            N/A               -3.78%
AIM V.I. International Equity                   43.89%          19.29%              16.80%
AIM V.I. Telecommunications and Technology**    91.71%          30.75%              27.28%
AIM V.I. Value                                  20.54%          24.48%              20.98%
</TABLE>

* The  inception  dates for the Funds appear in the  footnote to the  preceding
table.

**The performance figures for this Variable Sub-Account is not annualized.

(With the Enhanced Death and Income Benefit Combination Option)*
<TABLE>
<CAPTION>

                                                                                   10 Years or
Variable Sub-Account                           One Year      Five Years         Since Inception (if less)**

<S>                                            <C>            <C>                 <C>
AIM V.I. Aggressive Growth                     33.99%             N/A               17.75%
AIM V.I. Balanced                              10.48%             N/A               13.53%
AIM V.I. Blue Chip                                N/A             N/A                  N/A
AIM V.I. Capital Appreciation                  33.93%          22.63%               20.01%
AIM V.I. Capital Development                   19.56%             N/A                5.54%
AIM V.I. Dent Demographic Trends                  N/A             N/A                  N/A
AIM V.I. Diversified Income                    -3.44%           5.28%                3.90%
AIM V.I. Global Growth and Income              -7.54%          10.60%                9.51%
AIM V.I. Global Utilities                      23.69%          18.99%               15.93%
AIM V.I. Government Securities                 -5.51%           3.81%                2.66%
AIM V.I. Growth                                25.24%          26.59%               20.59%
AIM V.I. Growth & Income                       24.33%          25.16%               21.86%
AIM V.I. High Yield                             2.35%             N/A               -3.97%
AIM V.I. International Equity                  43.60%          19.05%               16.56%
AIM V.I. Telecommunications and Technology     91.32%          30.50%               27.03%
AIM V.I. Value                                 20.30%          24.23%               20.73%
</TABLE>

* The  inception  dates for the Funds appear in the footnote to the first table
under "Adjusted Historical Total Returns."




<PAGE>

CALCULATION OF ACCUMULATION UNIT VALUES

The value of Accumulation  Units will change each Valuation  Period according to
the  investment  performance  of the  Fund  shares  purchased  by each  Variable
Sub-Account  and the  deduction of certain  expenses  and charges.  A "Valuation
Period" is the period from the end of one  Valuation  Date and  continues to the
end of the next  Valuation  Date. A Valuation  Date ends at the close of regular
trading on the New York Stock Exchange (currently 3:00 p.m. Central Time).

The Accumulation  Unit Value of a Variable  Sub-Account for any Valuation Period
equals the  Accumulation  Unit Value as of the immediately  preceding  Valuation
Period,  multiplied  by the Net  Investment  Factor  (described  below) for that
Sub-Account for the current Valuation Period.

NET INVESTMENT FACTOR

The Net Investment  Factor for a Valuation  Period is a number  representing the
change,  since the last Valuation Period, in the value of Sub-account assets per
Accumulation Unit due to investment income,  realized or unrealized capital gain
or loss,  deductions  for taxes,  if any, and  deductions  for the mortality and
expense risk charge and  administrative  expense  charge.  We determine  the Net
Investment  Factor for each Variable  Sub-Account  for any  Valuation  Period by
dividing (A) by (B) and subtracting (C) from the result, where:

     (A)  is the sum of:

          (1)  the net asset value per share of the Fund underlying the Variable
               Sub-Account  determined  at  the  end of  the  current  Valuation
               Period; plus,

          (2)  the  per  share   amount  of  any   dividend   or  capital   gain
               distributions   made  by  the  Fund   underlying   the   Variable
               Sub-Account during the current Valuation Period;

     (B)  is the net asset value per share of the Fund  underlying  the Variable
          Sub-Account  determined  as of the  end of the  immediately  preceding
          Valuation Period; and

     (C)  is the  annualized  mortality  and  expense  risk  and  administrative
          expense  charges  divided by 365 and then  multiplied by the number of
          calendar days in the current Valuation Period.




<PAGE>



CALCULATION OF VARIABLE INCOME PAYMENTS

We calculate  the amount of the first  variable  income  payment under an Income
Plan by applying the Contract Value allocated to each Variable  Sub-Account less
any  applicable  premium tax charge  deducted at the time, to the income payment
tables in the  Contract.  We divide  the  amount of the first  variable  annuity
income payment by the Variable  Sub-Account's then current Annuity Unit value to
determine the number of annuity units ("Annuity  Units") upon which later income
payments will be based. To determine  income payments after the first, we simply
multiply the number of Annuity Units determined in this manner for each Variable
Sub-Account  by the then current  Annuity Unit value  ("Annuity Unit Value") for
that Variable Sub-Account.

CALCULATION OF ANNUITY UNIT VALUES

Annuity Units in each Variable  Sub-Account  are valued  separately  and Annuity
Unit Values will depend upon the investment experience of the particular Fund in
which the Variable  Sub-Account invests. We calculate the Annuity Unit Value for
each Variable Sub-Account at the end of any Valuation Period by:

o    multiplying the Annuity Unit Value at the end of the immediately  preceding
     Valuation  Period  by the  Variable  Sub-Account's  Net  Investment  Factor
     (described in the preceding section) for the Period; and then

o    dividing the product by the sum of 1.0 plus the assumed investment rate for
     the Valuation Period.


The assumed  investment rate adjusts for the interest rate assumed in the income
payment tables used to determine the dollar amount of the first variable  income
payment, and is at an effective annual rate which is disclosed in the Contract.

We  determine  the amount of the first  variable  income  payment  paid under an
Income  Plan  using the income  payment  tables  set out in the  Contracts.  The
Contracts  include  tables  that  differentiate  on the basis of sex,  except in
states that require the use of unisex tables.




<PAGE>



GENERAL MATTERS

INCONTESTABILITY

We will not contest the Contract after we issue it.

SETTLEMENTS

We may require that your Contract be returned to us prior to any settlement.  We
must receive due proof of the Contract  owner(s) death (or Annuitant's  death if
there is a non-natural Contract owner) before we will settle a death claim.

SAFEKEEPING OF THE VARIABLE ACCOUNT'S ASSETS

We hold  title  to the  assets  of the  Variable  Account.  We keep  the  assets
physically  segregated and separate and apart from our general corporate assets.
We maintain  records of all purchases and redemptions of the Fund shares held by
each of the Variable Sub-Accounts.

The Funds do not  issue  stock  certificates.  Therefore,  we hold the  Variable
Account's assets in open account in lieu of stock  certificates.  See the Funds'
prospectuses for a more complete description of the custodian of the Funds.

PREMIUM TAXES

Applicable  premium tax rates depend on the Contract  owner's state of residency
and the  insurance  laws and our status in those states where  premium taxes are
incurred.  Premium  tax  rates may be  changed  by  legislation,  administrative
interpretations, or judicial acts.

TAX RESERVES

We do not establish capital gains tax reserves for any Variable  Sub-Account nor
do we deduct  charges for tax reserves  because we believe  that  capital  gains
attributable to the Variable  Account will not be taxable.  However,  we reserve
the right to deduct  charges to establish  tax reserves for  potential  taxes on
realized or unrealized capital gains.




<PAGE>



FEDERAL TAX MATTERS

THE FOLLOWING  DISCUSSION IS GENERAL AND IS NOT INTENDED AS TAX ADVICE.  WE MAKE
NO  GUARANTEE  REGARDING  THE  TAX  TREATMENT  OF ANY  CONTRACT  OR  TRANSACTION
INVOLVING A CONTRACT.

Federal,  state,  local and other tax  consequences  of  ownership or receipt of
distributions  under an annuity contract depend on the individual  circumstances
of each person.  If you are concerned about any tax consequences  with regard to
your individual circumstances, you should consult a competent tax adviser.

TAXATION OF GLENBROOK LIFE AND ANNUITY COMPANY

Glenbrook is taxed as a life  insurance  company under Part I of Subchapter L of
the Internal  Revenue Code. Since the Variable Account is not an entity separate
from  Glenbrook,  and its  operations  form a part of Glenbrook,  it will not be
taxed separately as a "Regulated  Investment  Company" under Subchapter M of the
Code.  Investment  income and realized capital gains of the Variable Account are
automatically  applied to increase  reserves under the contract.  Under existing
federal income tax law,  Glenbrook believes that the Variable Account investment
income and  capital  gains will not be taxed to the extent  that such income and
gains are applied to increase  the  reserves  under the  contract.  Accordingly,
Glenbrook  does  not  anticipate  that it will  incur  any  federal  income  tax
liability attributable to the Variable Account, and therefore Glenbrook does not
intend  to make  provisions  for any  such  taxes.  If  Glenbrook  is  taxed  on
investment income or capital gains of the Variable  Account,  then Glenbrook may
impose a charge against the Variable Account in order to make provision for such
taxes.

EXCEPTIONS TO THE NON-NATURAL OWNER RULE

There are several  exceptions to the general rule that annuity contracts held by
a non-natural  owner are not treated as annuity contracts for federal income tax
purposes. Contracts will generally be treated as held by a natural person if the
nominal owner is a trust or other entity which holds the Contract as agent for a
natural person. However, this special exception will not apply in the case of an
employer who is the nominal owner of an annuity  contract under a  non-qualified
deferred  compensation  arrangement for its employees.  Other  exceptions to the
non-natural owner rule are: (1) contracts acquired by an estate of a decedent by
reason  of the death of the  decedent;  (2)  certain  qualified  contracts;  (3)
contracts  purchased  by employers  upon the  termination  of certain  qualified
plans;  (4) certain  contracts  used in connection  with  structured  settlement
agreements,  and (5) contracts  purchased with a single premium when the annuity
starting  date  is no  later  than a year  from  purchase  of  the  annuity  and
substantially  equal  periodic  payments  are  made,  not less  frequently  than
annually, during the annuity period.

IRS REQUIRED DISTRIBUTION AT DEATH RULES

In order to be considered an annuity  contract for federal  income tax purposes,
an annuity contract must provide:  (1) if any owner dies on or after the annuity
start date but before the entire interest in the contract has been  distributed,
the remaining  portion of such interest must be  distributed at least as rapidly
as under the method of  distribution  being  used as of the date of the  owner's
death;  (2) if any owner  dies  prior to the  annuity  start  date,  the  entire
interest in the contract will be distributed within five years after the date of
the  owner's  death.  These  requirements  are  satisfied  if any portion of the
owner's  interest  which is  payable  to (or for the  benefit  of) a  designated
beneficiary is distributed  over the life of such  beneficiary (or over a period
not  extending   beyond  the  life  expectancy  of  the   beneficiary)  and  the
distributions  begin  within  one  year of the  owner's  death.  If the  owner's
designated beneficiary is the surviving spouse of the owner, the contract may be
continued  with the  surviving  spouse  as the new  owner.  If the  owner of the
contract is a  non-natural  person,  then the  annuitant  will be treated as the
owner for purposes of applying the  distribution at death rules. In addition,  a
change in the  annuitant  on a contract  owned by a  non-natural  person will be
treated as the death of the owner.




<PAGE>



QUALIFIED PLANS

The Contract may be used with several  types of qualified  plans.  The income on
qualified plan and IRA investments is tax deferred and variable annuites held by
such plans do not receive any  additional  tax  deferral.  You should review the
annuity  features,  including all benefits and  expenses,  prior to purchasing a
variable  annuity in a qualified  plan or IRA.  Glenbrook  reserves the right to
limit the  availability  of the Contract for use with any of the Qualified Plans
listed below.

The tax rules  applicable to participants in such qualified plans vary according
to the type of plan and the terms and conditions of the plan itself. Adverse tax
consequences  may result from  excess  contributions,  premature  distributions,
distributions  that  do  not  conform  to  specified  commencement  and  minimum
distribution rules, excess  distributions and in other  circumstances.  Contract
owners and participants  under the plan and annuitants and  beneficiaries  under
the Contract may be subject to the terms and  conditions of the plan  regardless
of the terms of the Contract.

INDIVIDUAL RETIREMENT ANNUITIES

Section  408 of the  Code  permits  eligible  individuals  to  contribute  to an
individual  retirement program known as an Individual  Retirement Annuity (IRA).
Individual  Retirement  Annuities are subject to  limitations on the amount that
can be  contributed  and on the time when  distributions  may commence.  Certain
distributions  from other  types of  qualified  plans may be "rolled  over" on a
tax-deferred basis into an Individual  Retirement  Annuity. An IRA generally may
not provide life  insurance,  but it may provide a death benefit that equals the
greater  of the  premiums  paid and the  Contract's  Cash  Value.  The  Contract
provides a death benefit that in certain circumstances may exceed the greater of
the payments and the Contract Value. It is possible that the death benefit could
be viewed as violating the prohibition on investment in life insurance contracts
with the  result  that the  Contract  would  not be  viewed  as  satisfying  the
requirements of an IRA.

ROTH INDIVIDUAL RETIREMENT ANNUITIES

Section  408A of the Code permits  eligible  individuals  to make  nondeductible
contributions  to an individual  retirement  program known as a Roth  Individual
Retirement  Annuity.   Roth  Individual  Retirement  Annuities  are  subject  to
limitations  on the  amount  that  can be  contributed  and  on  the  time  when
distributions  may  commence.  "Qualified  distributions"  from Roth  Individual
Retirement   Annuities  are  not   includible   in  gross   income.   "Qualified
distributions" are any distributions made more than five taxable years after the
taxable  year  of the  first  contribution  to the  Roth  Individual  Retirement
Annuity,  and which are made on or after the date the individual  attains age 59
1/2, made to a beneficiary  after the owner's death,  attributable  to the owner
being disabled or for a first time home purchase  (first time home purchases are
subject  to a  lifetime  limit of  $10,000).  "Nonqualified  distributions"  are
treated as made from  contributions  first and are includible in gross income to
the  extent  such  distributions  exceed  the  contributions  made  to the  Roth
Individual   Retirement   Annuity.   The  taxable  portion  of  a  "nonqualified
distribution" may be subject to the 10% penalty tax on premature  distributions.
Subject to certain limitations,  a traditional  Individual Retirement Account or
Annuity  may be  converted  or  "rolled  over" to a Roth  Individual  Retirement
Annuity.  The  taxable  portion of a  conversion  or  rollover  distribution  is
includible  in  gross  income,  but is  exempted  from  the 10%  penalty  tax on
premature distributions.

SIMPLIFIED EMPLOYEE PENSION PLANS

Section  408(k) of the Code allows  employers to establish  simplified  employee
pension plans for their  employees  using the employees'  individual  retirement
annuities  if certain  criteria  are met.  Under these plans the  employer  may,
within  specified  limits,  make  deductible  contributions  on  behalf  of  the
employees to their individual retirement  annuities.  Employers intending to use
the Contract in  connection  with such plans should seek  competent  advice.  In
particular, employers should consider that an IRA generally may not provide life
insurance,  but it may  provide a death  benefit  that equals the greater of the
premiums  paid and the  contract's  cash value.  The  Contract  provides a death
benefit that in certain circumstances may exceed the greater of the payments and
the Contract Value.

SAVINGS INCENTIVE MATCH PLANS FOR EMPLOYEES (SIMPLE PLANS)

Sections  408(p)  and  401(k)  of the  Code  allow  employers  with 100 or fewer
employees to establish SIMPLE retirement plans for their employees. SIMPLE plans
may be structured as a SIMPLE retirement account using an employee's IRA to hold
the assets or as a Section  401(k)  qualified cash or deferred  arrangement.  In
general,  a SIMPLE plan  consists  of a salary  deferral  program  for  eligible
employees and matching or nonelective contributions made by employers. Employers
intending  to use the  Contract in  conjunction  with SIMPLE  plans  should seek
competent tax and legal advice.

TAX SHELTERED ANNUITIES

Section  403(b) of the Code permits  public  school  employees  and employees of
certain types of tax-exempt organizations (specified in Section 501(c)(3) of the
Code) to have their employers  purchase annuity  contracts for them, and subject
to certain  limitations,  to exclude the purchase  payments from the  employees'
gross income.  An annuity  contract used for a Section  403(b) plan must provide
that  distributions  attributable to salary reduction  contributions  made after
12/31/88, and all earnings on salary reduction  contributions,  may be made only
on or after the date the employee  attains age 59 1/2,  separates  from service,
dies,  becomes  disabled  or on the  account  of  hardship  (earnings  on salary
reduction contributions may not be distributed for hardship).  These limitations
do not apply to withdrawals  where Glenbrook is directed to transfer some or all
of the Contract Value to another 403(b) plan.

CORPORATE AND SELF-EMPLOYED PENSION AND PROFIT SHARING PLANS

Sections 401(a) and 403(a) of the Code permit  corporate  employers to establish
various types of tax favored  retirement plans for employees.  The Self-Employed
Individuals  Retirement Act of 1962, as amended,  (commonly referred to as "H.R.
10" or "Keogh")  permits  self-employed  individuals  to  establish  tax favored
retirement plans for themselves and their  employees.  Such retirement plans may
permit the purchase of annuity  contracts in order to provide benefits under the
plans.

STATE AND LOCAL  GOVERNMENT AND TAX-EXEMPT  ORGANIZATION  DEFERRED  COMPENSATION
PLANS

Section 457 of the Code  permits  employees of state and local  governments  and
tax-exempt organizations to defer a portion of their compensation without paying
current  taxes.  The  employees  must be  participants  in an eligible  deferred
compensation  plan. To the extent the  Contracts are used in connection  with an
eligible plan,  employees are considered  general  creditors of the employer and
the  employer as owner of the contract has the sole right to the proceeds of the
contract.  Generally,  under the non-natural owner rules, such Contracts are not
treated as annuity contracts for federal income tax purposes. Under these plans,
contributions  made for the benefit of the  employees  will not be includible in
the employees' gross income until  distributed from the plan.  However,  under a
Section 457 plan all the compensation deferred under the plan must remain solely
the  property  of the  employer,  subject  only to the claims of the  employer's
general  creditors,  until  such time as made  available  to the  employee  or a
beneficiary.




<PAGE>



EXPERTS

The financial  statements and related financial statement schedules of Glenbrook
Life and Annuity  Company as of  December  31, 1999 and 1998 and for each of the
three years in the period ended  December 31, 1999 that appear in this Statement
of  Additional   Information  have  been  audited  by  Deloitte  &  Touche  LLP,
independent  auditors, as stated in their report appearing herein, and have been
so included in reliance upon the report of such firm given upon their  authority
as experts in accounting and auditing.

The financial  statements of the Variable  Account as of December 31, 1999,  and
for  each of the  periods  in the two  years  then  ended  that  appear  in this
Statement of Additional  Information have been audited by Deloitte & Touche LLP,
independent  auditors, as stated in their report appearing herein, and have been
so included in reliance upon the report of such firm given upon their  authority
as experts in accounting and auditing.


FINANCIAL STATEMENTS

The financial statements of the Variable Account as of December 31, 1999 and for
the periods in the two years then ended,  the financial  statements  and related
financial  statement  schedule of Glenbrook as of December 31, 1999 and 1998 and
for each of the  three  years in the  period  ended  December  31,  1999 and the
accompanying  Independent  Auditors' Report appear in the pages that follow. The
financial  statements of Glenbrook  included herein should be considered only as
bearing  upon the  ability  of  Glenbrook  to meet  its  obligations  under  the
Contacts.


<PAGE>


INDEPENDENT AUDITORS' REPORT


TO THE BOARD OF DIRECTORS AND SHAREHOLDER OF
GLENBROOK LIFE AND ANNUITY COMPANY:

We have audited the accompanying Statements of Financial Position
of Glenbrook Life and Annuity Company (the "Company", an affiliate of The
Allstate Corporation) as of December 31, 1999 and 1998, and the related
Statements of Operations and Comprehensive Income, Shareholder's Equity and
Cash Flows for each of the three years in the period ended December 31, 1999.
Our audits also included Schedule IV - Reinsurance. These financial statements
and financial statement schedule are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements and financial statement schedule based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, such financial statements present fairly, in all material
respects, the financial position of the Company as of December 31, 1999 and
1998, and the results of its operations and its cash flows for each of the three
years in the period ended December 31, 1999 in conformity with generally
accepted accounting principles. Also, in our opinion, Schedule IV - Reinsurance,
when considered in relation to the basic financial statements taken as a whole,
presents fairly, in all material respects, the information set forth therein.




/s/ Deloitte & Touche LLP

Chicago, Illinois
February 25, 2000



<PAGE>



                          GLENBROOK LIFE AND ANNUITY COMPANY
                           STATEMENTS OF FINANCIAL POSITION

<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                   ---------------------------
                                                                      1999             1998
                                                                   ----------     ------------
($ in thousands, except par value data)

<S>                                                                <C>            <C>
ASSETS
Investments
   Fixed income securities, at fair value
      (amortized cost $94,173 and $87,415 )                         $    92,937    $    94,313
   Short-term                                                            53,063          4,663
                                                                    -----------    -----------
         Total investments                                              146,000         98,976

Cash                                                                          9             --
Reinsurance recoverable from
   Allstate Life Insurance Company                                    4,144,165      3,113,278
Deferred income taxes                                                       293             --
Other assets                                                              2,706          2,590
Separate Accounts                                                     1,541,756        993,622
                                                                    -----------    -----------
         TOTAL ASSETS                                               $ 5,834,929    $ 4,208,466
                                                                    ===========    ===========

LIABILITIES
Reserve for life-contingent contract benefits                       $       800    $        --
Contractholder funds                                                  4,143,365      3,113,278
Current income taxes payable                                              2,360          2,181
Deferred income taxes                                                        --          2,499
Payable to affiliates, net                                                4,122          3,583
Separate Accounts                                                     1,541,756        993,622
                                                                    -----------    -----------
         TOTAL LIABILITIES                                            5,692,403      4,115,163
                                                                    -----------    -----------
COMMITMENTS AND CONTINGENT LIABILITIES (NOTE 11)

SHAREHOLDER'S EQUITY
Common stock, $500 par value, 10,000 and
    4,200 shares authorized, 5,000 and
    4,200 shares issued
    and outstanding                                                       2,500          2,100
Additional capital paid-in                                              119,241         69,641
Retained income                                                          21,588         17,079

Accumulated other comprehensive (loss) income:
    Unrealized net capital (losses) gains                                  (803)         4,483
                                                                    -----------    -----------
         TOTAL ACCUMULATED OTHER COMPREHENSIVE
             (LOSS) INCOME                                                 (803)         4,483
                                                                    -----------    -----------
         TOTAL SHAREHOLDER'S EQUITY                                     142,526         93,303
                                                                    -----------    -----------
         TOTAL LIABILITIES AND SHAREHOLDER'S EQUITY                 $ 5,834,929    $ 4,208,466
                                                                    ===========    ===========
</TABLE>

See notes to financial statements.


                                       2
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                            STATEMENTS OF OPERATIONS
                            AND COMPREHENSIVE INCOME

<TABLE>
<CAPTION>

                                                                   YEAR ENDED DECEMBER 31,
                                                               -----------------------------
($ in thousands)                                                 1999      1998       1997
                                                               -------    -------    -------
<S>                                                            <C>        <C>        <C>
REVENUES
Net investment income                                          $ 6,579    $ 6,231    $ 5,304
Realized capital gains and losses                                  312         (5)     3,460
                                                               -------    -------    -------

INCOME FROM OPERATIONS
    BEFORE INCOME TAX EXPENSE                                    6,891      6,226      8,764
Income tax expense                                               2,382      2,182      3,078
                                                               -------    -------    -------

NET INCOME                                                       4,509      4,044      5,686
                                                               -------    -------    -------

OTHER COMPREHENSIVE (LOSS) INCOME, AFTER-TAX
Change in unrealized net capital gains and losses               (5,286)     1,315        378
                                                               -------    -------    -------

COMPREHENSIVE (LOSS) INCOME                                    $  (777)   $ 5,359    $ 6,064
                                                               =======    =======    =======
</TABLE>


See notes to financial statements.

                                       3
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                       STATEMENTS OF SHAREHOLDER'S EQUITY

<TABLE>
<CAPTION>

                                                                           DECEMBER 31,
                                                                ----------------------------------
                                                                   1999         1998       1997
                                                                ---------    ---------   ---------
($ in thousands)

<S>                                                             <C>          <C>         <C>
COMMON STOCK
Balance, beginning of year                                      $   2,100    $   2,100   $   2,100
Issuance of new shares of stock                                       400           --          --
                                                                ---------    ---------   ---------
Balance, end of year                                                2,500        2,100       2,100
                                                                ---------    ---------   ---------
ADDITIONAL CAPITAL PAID-IN
Balance, beginning of year                                      $  69,641    $  69,641   $  69,641
Capital contribution                                               49,600           --          --
                                                                ---------    ---------   ---------
Balance, end of year                                              119,241       69,641      69,641
                                                                ---------    ---------   ---------

RETAINED INCOME
Balance, beginning of year                                      $  17,079    $  13,035   $   7,349
Net income                                                          4,509        4,044       5,686
                                                                ---------    ---------   ---------
Balance, end of year                                               21,588       17,079      13,035
                                                                ---------    ---------   ---------
ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME
Balance, beginning of year                                      $   4,483    $   3,168   $   2,790
Change in unrealized net capital gains
    and losses                                                     (5,286)       1,315         378
                                                                ---------    ---------   ---------
Balance, end of year                                                 (803)       4,483       3,168
                                                                ---------    ---------   ---------
TOTAL SHAREHOLDER'S EQUITY                                      $ 142,526    $  93,303   $  87,944
                                                                =========    =========   =========
</TABLE>


See notes to financial statements.


                                       4
<PAGE>

                       GLENBROOK LIFE AND ANNUITY COMPANY
                            STATEMENTS OF CASH FLOWS


<TABLE>
<CAPTION>
                                                                              YEAR ENDED DECEMBER 31,
                                                                         --------------------------------
($ in thousands)                                                           1999        1998        1997
                                                                         --------    --------    --------
<S>                                                                      <C>         <C>         <C>
CASH FLOWS FROM OPERATING ACTIVITIES
Net income                                                               $  4,509    $  4,044    $  5,686
Adjustments to reconcile net income to net cash
    provided by operating activities
         Amortization and other non-cash items                                (65)        (24)         29
         Realized capital gains and losses                                   (312)          5      (3,460)
         Changes in:
              Income taxes payable                                            235       1,590         240
              Other operating assets and liabilities                          264         915         961
                                                                         --------    --------    --------
                 Net cash provided by operating activities                  4,631       6,530       3,456
                                                                         --------    --------    --------

CASH FLOWS FROM INVESTING ACTIVITIES
Fixed income securities
       Proceeds from sales                                                  9,049       1,966       1,405
       Investment collections                                               4,945       7,123      14,217
       Investment purchases                                               (20,328)    (15,250)    (50,115)
Participation in Separate accounts                                             --          --      13,981
Change in short-term investments, net                                     (48,288)       (369)     (2,944)
                                                                         --------    --------    --------
               Net cash used in investing activities                      (54,622)     (6,530)    (23,456)
                                                                         --------    --------    --------

CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from issuance of common stock                                        400          --          --
Capital contribution                                                       49,600          --      20,000
                                                                         --------    --------    --------
           Net cash provided by financing activities                       50,000          --      20,000
                                                                         --------    --------    --------


NET INCREASE IN CASH                                                            9          --          --
CASH AT THE BEGINNING OF YEAR                                                  --          --          --
                                                                         --------    --------    --------
CASH AT END OF YEAR                                                      $      9    $     --      $   --
                                                                         ========    ========    ========
</TABLE>

See notes to financial statements.


                                       5

<PAGE>

                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)


1. GENERAL

BASIS OF PRESENTATION
The accompanying financial statements include the accounts of Glenbrook Life and
Annuity Company (the "Company"), a wholly owned subsidiary of Allstate Life
Insurance Company ("ALIC"), which is wholly owned by Allstate Insurance Company
("AIC"), a wholly owned subsidiary of The Allstate Corporation (the
"Corporation"). These financial statements have been prepared in conformity with
generally accepted accounting principles.

NATURE OF OPERATIONS
The Company markets savings and life insurance products through banks and
securities firms. Savings products include deferred annuities and immediate
annuities without life contingencies. Deferred annuities include fixed rate,
market value adjusted, indexed and variable annuities. Life insurance consists
of interest-sensitive life and variable life insurance. In 1999, substantially
all of the Company's statutory premiums and deposits were from annuities.

Annuity contracts and life insurance policies issued by the Company are subject
to discretionary surrender or withdrawal by customers, subject to applicable
surrender charges. These policies and contracts are reinsured primarily with
ALIC (see Note 3), which invests premiums and deposits to provide cash flows
that will be used to fund future benefits and expenses.

The Company monitors economic and regulatory developments which have the
potential to impact its business. Recently enacted federal legislation will
allow for banks and other financial organizations to have greater participation
in the securities and insurance businesses. This legislation may present an
increased level of competition for sales of the Company's products. Furthermore,
the market for deferred annuities and interest-sensitive life insurance is
enhanced by the tax incentives available under current law. Any legislative
changes which lessen these incentives are likely to negatively impact the demand
for these products.

Additionally, traditional demutualizations of mutual insurance companies and
enacted and pending state legislation to permit mutual insurance companies to
convert to a hybrid structure known as a mutual holding company could have a
number of significant effects on the Company by (1) increasing industry
competition through consolidation caused by mergers and acquisitions related to
the new corporate form of business; and (2) increasing competition in the
capital markets.

Although the Company currently benefits from agreements with financial services
entities who market and distribute its products, change in control of these
non-affiliated entities with which the Company has alliances could negatively
impact the Company's sales.

The Company is authorized to sell life and savings products in all states except
New York, as well as in the District of Columbia. The top geographic locations
for statutory premiums and deposits for the Company were Florida, California,
Pennsylvania, Michigan, Texas, Illinois and New Jersey for the year ended
December 31, 1999. No other jurisdiction accounted for more than 5% of statutory
premiums and deposits. Substantially all premiums and deposits are ceded to ALIC
under reinsurance agreements.



                                       6

<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)



2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

INVESTMENTS
Fixed income securities include bonds and mortgage-backed securities. All
fixed income securities are carried at fair value and may be sold prior to
their contractual maturity ("available for sale"). The difference between
amortized cost and fair value, net of deferred income taxes, is reflected as
a component of shareholder's equity. Provisions are recognized for declines
in the value of fixed income securities that are other than temporary. Such
writedowns are included in realized capital gains and losses. Short-term
investments are carried at cost or amortized cost, which approximates fair
value.

Investment income consists primarily of interest and short-term investment
dividends. Interest is recognized on an accrual basis and dividends are recorded
at the ex-dividend date. Interest income on mortgage-backed securities is
determined on the effective yield method, based on the estimated principal
repayments. Accrual of income is suspended for fixed income securities that are
in default or when the receipt of interest payments is in doubt. Realized
capital gains and losses are determined on a specific identification basis.

REINSURANCE RECOVERABLE
The Company has reinsurance agreements whereby substantially all contract
charges, credited interest, policy benefits and certain expenses are ceded to
ALIC. Such amounts are reflected net of such reinsurance in the statements of
operations and comprehensive income. Investment income earned on the assets
which support contractholder funds and the reserve for life-contingent contract
benefits is not included in the Company's financial statements as those assets
are owned and managed under terms of reinsurance agreements. Reinsurance
recoverable and the related reserve for life-contingent contract benefits and
contractholder funds are reported separately in the statements of financial
position. The Company continues to have primary liability as the direct insurer
for risks reinsured.

RECOGNITION OF INSURANCE REVENUE AND RELATED BENEFITS AND INTEREST CREDITED
Interest-sensitive life contracts are insurance contracts whose terms are not
fixed and guaranteed. The terms that may be changed include premiums paid by the
contractholder, interest credited to the contractholder account balance and one
or more amounts assessed against the contractholder. Premiums from these
contracts are reported as deposits to contractholder funds. Contract charge
revenue consists of fees assessed against the contractholder account balance for
cost of insurance (mortality risk), contract administration and surrender
charges. Contract benefits include interest credited to contracts and claims
incurred in excess of the related contractholder account balance.

Contracts that do not subject the Company to significant risk arising from
mortality or morbidity are referred to as investment contracts. Fixed rate
annuities, market value adjusted annuities, indexed annuities and immediate
annuities without life contingencies are considered investment contracts.
Deposits received for such contracts are reported as deposits to contractholder
funds. Contract charge revenue for investment contracts consists of charges
assessed against the contractholder account balance for contract administration
and surrenders. Contract benefits include interest credited and claims incurred
in excess of the related contractholder account balance.


                                       7
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)



Crediting rates for fixed rate and interest-sensitive life contracts are
adjusted periodically by the Company to reflect current market conditions.
Crediting rates for indexed annuities are based on an interest rate index, such
as LIBOR or an equity index, such as the S&P 500.

Investment contracts include variable annuity and variable life contracts which
are sold as Separate Accounts products. The assets supporting these products are
legally segregated and available only to settle Separate Accounts contract
obligations. Deposits received are reported as Separate Accounts liabilities.
The Company's contract charge revenue for these contracts consists of charges
assessed against the Separate Accounts fund balances for contract maintenance,
administration, mortality, expense and surrenders.

All contract charges, contract benefits and interest credited are reinsured.

INCOME TAXES
The income tax provision is calculated under the liability method and presented
net of reinsurance. Deferred tax assets and liabilities are recorded based on
the difference between the financial statement and tax bases of assets and
liabilities at the enacted tax rates. Deferred income taxes arise primarily from
unrealized capital gains and losses on fixed income securities carried at fair
value and differences in the tax bases of investments.

SEPARATE ACCOUNTS
The Company issues deferred variable annuity and variable life contracts, the
assets and liabilities of which are legally segregated and recorded as assets
and liabilities of the Separate Accounts. Absent any contract provisions wherein
the Company contractually guarantees either a minimum return or account value to
the beneficiaries of the contractholders in the form of a death benefit, the
contractholders bear the investment risk that the Separate Accounts' funds may
not meet their stated objectives.

The assets of the Separate Accounts are carried at fair value. Separate
Accounts liabilities represent the contractholders' claim to the related
assets and are carried at the fair value of the assets. In the event that the
asset value of certain contractholder accounts are projected to be below the
value guaranteed by the Company, a liability is established through a charge
to earnings. Investment income and realized capital gains and losses of the
Separate Accounts accrue directly to the contractholders and therefore, are
not included in the Company's statements of operations and comprehensive
income. Revenues to the Company from the Separate Accounts consist of
contract maintenance and administration fees, and mortality, surrender and
expense charges.

Prior to 1998, the Company had an ownership interest ("Participation") in the
Separate Accounts. The Company's Participation was carried at fair value and
unrealized gains and losses, net of deferred income taxes, were shown as a
component of shareholder's equity. Investment income and realized capital gains
and losses which arose from the Participation were included in the Company's
statements of operations and comprehensive income. The Company liquidated its
Participation during 1997, which resulted in a pretax realized capital gain of
$3.5 million.


                                       8
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)



RESERVE FOR LIFE-CONTINGENT CONTRACT BENEFITS
The reserve for life-contingent contract benefits, which relates to certain
variable annuity contract guarantees, is computed on the basis of assumptions as
to mortality, future investment yields, terminations and expenses at the time
the policy is issued. These assumptions include provisions for adverse deviation
and generally vary by such characteristics as type of coverage, year of issue
and policy duration. Detailed reserve assumptions and reserve interest rates are
outlined in Note 6.

CONTRACTHOLDER FUNDS
Contractholder funds arise from the issuance of interest-sensitive life and
certain investment contracts. Deposits received are recorded as
interest-bearing liabilities. Contractholder funds are equal to deposits
received, net of commissions, and interest credited to the benefit of the
contractholder less withdrawals, mortality charges, and administrative
expenses. Detailed information on crediting rates and surrender and
withdrawal protection on contractholder funds are outlined in Note 6.

USE OF ESTIMATES
The preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the amounts reported in the financial statements and accompanying notes.
Actual results could differ from those estimates.

NEW ACCOUNTING STANDARDS
In 1999, the Company adopted Statement of Position ("SOP") 97-3, "Accounting by
Insurance and Other Enterprises for Insurance-Related Assessments." The SOP
provides guidance concerning when to recognize a liability for insurance-related
assessments and how those liabilities should be measured. Specifically,
insurance-related assessments should be recognized as liabilities when all of
the following criteria have been met: 1) an assessment has been imposed or it is
probable that an assessment will be imposed, 2) the event obligating an entity
to pay an assessment has occurred and 3) the amount of the assessment can be
reasonably estimated. Adoption of this statement was not material to the
Company's results of operations or financial position.


                                       9
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)


3. RELATED PARTY TRANSACTIONS

REINSURANCE
The Company has reinsurance agreements whereby substantially all contract
charges, credited interest, policy benefits and certain expenses are ceded to
ALIC and reflected net of such reinsurance in the statements of operations and
comprehensive income. Reinsurance recoverable and the related reserve for
life-contingent contract benefits and contractholder funds are reported
separately in the statements of financial position. The Company continues to
have primary liability as the direct insurer for risks reinsured.

Investment income earned on the assets which support contractholder funds and
the reserve for life-contingent contract benefits is not included in the
Company's financial statements as those assets are owned and managed under terms
of reinsurance agreements. The following amounts were ceded to ALIC under
reinsurance agreements.

<TABLE>
<CAPTION>

                                                     YEAR ENDED DECEMBER 31,
                                                     -----------------------
                                                    1999       1998      1997
                                                 --------   --------   --------
<S>                                              <C>        <C>        <C>
Contract charges                                 $ 27,175   $ 19,009   $ 11,641
Credited interest, policy benefits,
   and certain expenses                           253,945    218,008    179,954

</TABLE>

BUSINESS OPERATIONS
The Company utilizes services performed by AIC and ALIC and business facilities
owned or leased, and operated by AIC in conducting its business activities. The
Company reimburses AIC and ALIC for the operating expenses incurred on behalf of
the Company. The Company is charged for the cost of these operating expenses
based on the level of services provided. Operating expenses, including
compensation and retirement and other benefit programs, allocated to the Company
were $26,555, $15,949, and $19,243 in 1999, 1998 and 1997, respectively. Of
these costs, the Company retains investment related expenses. All other costs
are ceded to ALIC under reinsurance agreements.


                                       10
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)


4. INVESTMENTS

FAIR VALUES
The amortized cost, gross unrealized gains and losses, and fair value for fixed
income securities are as follows:

<TABLE>
<CAPTION>

                                                             GROSS UNREALIZED
                                               AMORTIZED     ------------------  FAIR
                                                 COST         GAINS     LOSSES   VALUE
                                               ---------     -------   --------  ------

<S>                                             <C>        <C>       <C>        <C>
AT DECEMBER 31, 1999
U.S. government and agencies                     $24,274    $ 1,260   $     -    $25,534
Municipal                                          1,656          -      (112)     1,544
Corporate                                         49,255          9    (2,022)    47,242
Mortgage-backed securities                        18,988         96      (467)    18,617
                                                 -------    -------   -------    -------
     Total fixed income securities               $94,173    $ 1,365   $(2,601)   $92,937
                                                 =======    =======   =======    =======

AT DECEMBER 31, 1998
U.S. government and agencies                    $24,350   $ 4,308   $     -    $28,658
Municipal                                           656        24         -        680
Corporate                                        33,009     1,575       (39)    34,545
Mortgage-backed securities                       29,400     1,047       (17)    30,430
                                                -------   -------   -------    -------
     Total fixed income securities              $87,415   $ 6,954   $   (56)   $94,313
                                                =======   =======   =======    =======

</TABLE>


SCHEDULED MATURITIES
The scheduled maturities for fixed income securities are as follows at December
31, 1999:

<TABLE>
<CAPTION>

                                                                  AMORTIZED      FAIR
                                                                    COST        VALUE
                                                                  ---------  ----------
<S>                                                               <C>        <C>
Due after one year through five years                             $  30,974   $   31,085
Due after five years through ten years                               32,583       30,911
Due after ten years                                                  11,628       12,324
                                                                  ---------   ----------
                                                                     75,185       74,320
Mortgage-backed securities                                           18,988       18,617
                                                                  ---------   -----------
   Total                                                          $  94,173   $   92,937
                                                                  =========   ===========

</TABLE>


Actual maturities may differ from those scheduled as a result of prepayments by
the issuers.

<TABLE>
<CAPTION>


NET INVESTMENT INCOME
YEAR ENDED DECEMBER 31,                                        1999     1998     1997
                                                              ------   ------   ------
<S>                                                           <C>      <C>      <C>
Fixed income securities                                       $6,458   $6,151   $5,014
Short-term investments                                           230      183      231
Participation in Separate Accounts                              --       --        161
                                                              ------   ------   ------
    Investment income, before expense                          6,688    6,334    5,406
    Investment expense                                           109      103      102
                                                              ------   ------   ------
    Net investment income                                     $6,579   $6,231   $5,304
                                                              ======   ======   ======
</TABLE>



                                       11
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)

<TABLE>
<CAPTION>

REALIZED CAPITAL GAINS AND LOSSES
YEAR ENDED DECEMBER 31,                                    1999        1998      1997
                                                        ---------   ---------  --------
<S>                                                      <C>        <C>        <C>
Fixed income securities                                  $   312    $    (5)   $   (61)
Short-term investments                                        --         --          6


Participation in Separate Accounts                            --         --      3,515
                                                        ---------   ---------  --------
     Realized capital gains and losses                       312         (5)     3,460
     Income taxes                                           (109)         2     (1,211)
                                                        ---------   ---------  --------
     Realized capital gains and
        losses, after tax                                $   203    $    (3)   $ 2,249
                                                        =========   =========  =======

</TABLE>

Excluding calls and prepayments, gross gains of $370 were realized on sales of
fixed income securities during 1999, and gross losses of $58, $5 and $61 were
realized on sales of fixed income securities during 1999, 1998 and 1997,
respectively. There were no gross gains realized on sales of fixed income
securities during 1998 and 1997.

UNREALIZED NET CAPITAL GAINS AND LOSSES
Unrealized net capital losses on fixed income securities included in
shareholder's equity at December 31, 1999 are as follows:

<TABLE>
<CAPTION>

                                            COST/              FAIR           GROSS UNREALIZED       UNREALIZED
                                        AMORTIZED COST         VALUE         GAINS       LOSSES      NET LOSSES
                                        --------------       --------       -------     -------      ----------
<S>                                         <C>              <C>            <C>         <C>            <C>
 Fixed income securities                    $ 94,173         $ 92,937       $ 1,365     $(2,601)       $(1,236)
                                            =========        ========       =======     =======
 Deferred income taxes                                                                                     433
                                                                                                        -------
 Unrealized net capital losses                                                                          $ (803)
                                                                                                        =======

</TABLE>

<TABLE>
<CAPTION>

CHANGE IN UNREALIZED NET CAPITAL GAINS AND LOSSES
YEAR ENDED DECEMBER 31,                                                         1999         1998        1997
                                                                               -------     --------    -------
<S>                                                                           <C>         <C>         <C>
Fixed income securities                                                       $(8,134)    $ 2,024     $ 2,410
Participation in Separate Accounts                                               --          --        (1,829)
Deferred income taxes                                                           2,848        (709)       (203)
                                                                               -------     -------     -------
(Decrease) increase in unrealized net
    capital gains                                                             $(5,286)    $ 1,315     $   378
                                                                              =======     =======     =======
</TABLE>

SECURITIES ON DEPOSIT
At December 31, 1999, fixed income securities with a carrying value of $10,346
were on deposit with regulatory authorities as required by law.


                                       12
<PAGE>

                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)


5.    FINANCIAL INSTRUMENTS

In the normal course of business, the Company invests in various financial
assets and incurs various financial liabilities. The fair value estimates of
financial instruments presented below are not necessarily indicative of the
amounts the Company might pay or receive in actual market transactions.
Potential taxes and other transaction costs have not been considered in
estimating fair value. The disclosures that follow do not reflect the fair value
of the Company as a whole since a number of the Company's significant assets
(including reinsurance recoverable and deferred income taxes) and liabilities
(including interest-sensitive life insurance reserves) are not considered
financial instruments and are not carried at fair value. Other assets and
liabilities considered financial instruments, such as accrued investment income
and cash, are generally of a short-term nature. Their carrying values are
assumed to approximate fair value.

FINANCIAL ASSETS
The carrying value and fair value of financial assets at December 31, are as
follows:

<TABLE>
<CAPTION>
                                                        1999                             1998
                                                       -----                             -----
                                            CARRYING           FAIR            CARRYING          FAIR
                                              VALUE            VALUE             VALUE           VALUE
                                           -------------   -------------    -------------    ------------
<S>                                        <C>             <C>              <C>              <C>
Fixed income securities                    $   92,937       $   92,937         $ 94,313       $ 94,313
Short-term investments                         53,063           53,063            4,663          4,663
Separate Accounts                           1,541,756        1,541,756          993,622        993,622

</TABLE>


Fair values for fixed income securities are based on quoted market prices where
available. Non-quoted securities are valued based on discounted cash flows using
current interest rates for similar securities. Short-term investments are highly
liquid investments with maturities of less than one year whose carrying value
are deemed to approximate fair value. Separate Accounts assets are carried in
the statements of financial position at fair value based on quoted market
prices.

FINANCIAL LIABILITIES
The carrying value and fair value of financial liabilities at December 31, are
as follows:

<TABLE>
<CAPTION>

                                                        1999                             1998
                                                       -----                             -----
                                            CARRYING           FAIR            CARRYING          FAIR
                                              VALUE            VALUE             VALUE           VALUE
                                           -------------   -------------    -------------    ------------
<S>                                         <C>            <C>               <C>              <C>
Contractholder funds on
     investment contracts                   $  4,156,964   $   3,924,117     $  3,130,228     $ 2,967,101
Separate Accounts                              1,541,756       1,541,756          993,622         993,622

</TABLE>


The fair value of contractholder funds on investment contracts is based on the
terms of the underlying contracts. Reserves on investment contracts with no
stated maturities (single premium and flexible premium deferred annuities) are
valued at the account balance less surrender charges. The fair value of
immediate annuities and annuities without life contingencies with fixed terms is
estimated using discounted cash flow calculations based on interest rates
currently offered for contracts with similar terms and durations. Separate
Accounts liabilities are carried at the fair value of the underlying assets.




                                       13
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)


6. RESERVE FOR LIFE-CONTINGENT CONTRACT BENEFITS AND CONTRACTHOLDER FUNDS

At December 31, 1999 the reserve for life-contingent contract benefits consisted
of reserves for immediate annuities. The assumptions for mortality generally
utilized in calculating immediate annuity reserves is the 1983 group annuity
mortality table. Interest rate assumptions for immediate annuities vary from
3.5% to 7.2%. Other estimation methods used for immediate annuities include the
present value of contractually fixed benefits.

         At December 31, contractholder funds consists of the following:

<TABLE>
<CAPTION>

                                                 1999               1998
                                             -----------       -----------
<S>                                             <C>               <C>
   Interest-sensitive life                   $     9,503       $     3,335
   Fixed annuities:
        Immediate annuities                       17,856            12,643
        Deferred annuities                     4,116,006         3,097,300
                                              -----------       -----------
        Total contractholder funds           $ 4,143,365       $ 3,113,278
                                              ===========       ===========
</TABLE>


Contractholder funds are equal to deposits received, net of commissions, and
interest credited to the benefit of the contractholder less withdrawals,
mortality charges and administrative expenses. Interest rates credited range
from 4.0% to 7.2% for interest-sensitive life contracts; 3.5% to 7.2% for
immediate annuities and 4.3% to 6.7% for deferred annuities. Withdrawal and
surrender charge protection includes: i) for interest-sensitive life, either a
percentage of account balance or dollar amount grading off generally over 20
years; and, ii) for deferred annuities not subject to a market value adjustment,
either a declining or a level percentage charge generally over nine years or
less. Approximately 1% of deferred annuities are subject to a market value
adjustment.

7. CORPORATION RESTRUCTURING

On November 10, 1999 the Corporation announced a series of strategic initiatives
to aggressively expand its selling and service capabilities. The Corporation
also announced that it is implementing a program to reduce expenses by
approximately $600 million. The reduction will result in the elimination of
approximately 4,000 current non-agent positions, across all employment grades
and categories by the end of 2000, or approximately 10% of the Corporation's
non-agent work force. The impact of the reduction in employee positions is not
expected to materially impact the results of operations of the Company.

These cost reductions are part of a larger initiative to redeploy the cost
savings to finance new initiatives including investments in direct access and
internet channels for new sales and service capabilities, new competitive
pricing and underwriting techniques, new agent and claim technology and enhanced
marketing and advertising. As a result of the cost reduction program, the
Corporation recorded restructuring and related charges of $81 million pretax
during the fourth quarter of 1999. The Corporation anticipates that additional
pretax restructuring related charges of approximately $100 million will be
expensed as incurred throughout 2000. The


                                       14
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)


Company's allocable share of these expenses were immaterial in 1999 and are
expected to be immaterial in 2000.


8. INCOME TAXES

For 1996, the Company filed a separate federal income tax return. Beginning in
1997, the Company joined the Corporation and its other eligible domestic
subsidiaries (the "Allstate Group") in the filing of a consolidated federal
income tax return and is party to a federal income tax allocation agreement (the
"Allstate Tax Sharing Agreement"). Under the Allstate Tax Sharing Agreement, the
Company pays to or receives from the Corporation the amount, if any, by which
the Allstate Group's federal income tax liability is affected by virtue of
inclusion of the Company in the consolidated federal income tax return.
Effectively, this results in the Company's annual income tax provision being
computed, with adjustments, as if the Company filed a separate return.

Prior to June 30, 1995, the Corporation was a subsidiary of Sears Roebuck & Co.
("Sears") and was, with its eligible domestic subsidiaries, included in the
Sears consolidated federal income tax return and federal income tax allocation
agreement. Effective June 30, 1995, the Corporation and Sears entered into a new
tax sharing agreement, which governs their respective rights and obligations
with respect to federal income taxes for all periods during which the
Corporation was a subsidiary of Sears, including the treatment of audits of tax
returns for such periods.

The Internal Revenue Service ("IRS") has completed its review of the Allstate
Group's federal income tax returns through the 1993 tax year. Any adjustment
that may result from IRS examinations of tax returns are not expected to have a
material impact on the financial position, liquidity or results of operations of
the Company.

The components of the deferred income tax assets and liabilities at December 31,
are as follows:

<TABLE>
<CAPTION>

                                                                 1999      1998
                                                                ------    -------
<S>                                                             <C>       <C>
DEFERRED ASSETS
Unrealized net capital losses                                   $ 433     $     -
                                                                -----     -------
   Total deferred assets                                          433           -

DEFERRED LIABILITIES
Difference in tax bases of investments                           (140)        (84)
Unrealized net capital gains                                     --        (2,415)
                                                                -----     -------
   Total deferred liabilities                                    (140)     (2,499)
                                                                -----     -------
   Net deferred asset (liability)                               $ 293     $(2,499)
                                                                =====     =======
</TABLE>


Although realization is not assured, management believes it is more likely than
not that the deferred tax asset will be realized based on the assumptions that
certain levels of income will be achieved.


                                       15
<PAGE>



                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)

The components of income tax expense for the year ended December 31, are as
follows:

<TABLE>
<CAPTION>

                                                        1999      1998      1997
                                                      -------   -------   -------
<S>                                                   <C>       <C>       <C>
Current                                               $2,326    $2,164    $3,037
Deferred                                                  56        18        41
                                                      ------    ------    ------
   Total income tax expense                           $2,382    $2,182    $3,078
                                                      ======    ======    ======
</TABLE>


The Company paid income taxes of $2,148, $592 and $2,839 in 1999, 1998 and 1997,
respectively.

A reconciliation of the statutory federal income tax rate to the effective
income tax rate on income from operations for the year ended December 31, is as
follows:

<TABLE>
<CAPTION>

                                                        1999      1998      1997
                                                      -------   -------   -------
<S>                                                     <C>       <C>       <C>
Statutory federal income tax rate                       35.0%     35.0%     35.0%
Other                                                    (.4)      -          .1
                                                      ------    ------    ------
Effective income tax rate                               34.6%     35.0%     35.1%
                                                      ======    ======    ======
</TABLE>


9. STATUTORY FINANCIAL INFORMATION

The Company's statutory capital and surplus was $141,362 and $84,865 at December
31, 1999 and 1998, respectively. The Company's statutory net income was $4,179,
$4,698 and $3,636 for the years ended December 31, 1999, 1998 and 1997,
respectively.

PERMITTED STATUTORY ACCOUNTING PRACTICES
The Company prepares its statutory financial statements in accordance with
accounting practices prescribed or permitted by the Arizona Department of
Insurance. Prescribed statutory accounting practices include a variety of
publications of the National Association of Insurance Commissioners ("NAIC"), as
well as state laws, regulations and general administrative rules. Permitted
statutory accounting practices encompass all accounting practices not so
prescribed. The Company does not follow any permitted statutory accounting
practices that have a significant impact on statutory surplus or statutory net
income.

The NAIC's codification initiative has produced a comprehensive guide of
statutory accounting principles, which the Company will implement in January
2001. The Company's state of domicile, Arizona, has passed legislation revising
various statutory accounting requirements to conform to codification. These
requirements are not expected to have a material impact on the statutory surplus
of the Company.

DIVIDENDS
The ability of the Company to pay dividends is dependent on business conditions,
income, cash requirements of the Company and other relevant factors. The payment
of shareholder dividends by the Company without the prior approval of the state
insurance regulator is limited to formula amounts based on net income and
capital and surplus, determined in accordance with statutory accounting
practices, as well as the timing and amount of dividends paid in the preceding
twelve


                                       16
<PAGE>



                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)



months. The maximum amount of dividends that the Company can distribute during
2000 without prior approval of the Arizona Department of Insurance is $4,179.

RISK-BASED CAPITAL
The NAIC has a standard for assessing the solvency of insurance companies, which
is referred to as risk-based capital ("RBC"). The requirement consists of a
formula for determining each insurer's RBC and a model law specifying regulatory
actions if an insurer's RBC falls below specified levels. The RBC formula for
life insurance companies establishes capital requirements relating to insurance,
business, asset and interest rate risks. At December, 31 1999, RBC for the
Company was significantly above levels that would require regulatory action.


10. OTHER COMPREHENSIVE INCOME

The components of other comprehensive income on a pretax and after-tax basis for
the year ended December 31, are as follows:

<TABLE>
<CAPTION>

                                            1999                            1998                          1997
                               ------------------------------  -------------------------------  ---------------------------
                                                     After-                          After-                         After-
                                Pretax      Tax       Tax       Pretax      Tax        Tax       Pretax     Tax      Tax
                               ---------  --------  -------     --------    -------  --------  --------  --------  -------
UNREALIZED CAPITAL GAINS
 AND LOSSES:
- -------------------------------
<S>                             <C>       <C>       <C>          <C>        <C>      <C>       <C>       <C>       <C>
Unrealized holding (losses)
   gains arising during
   the period                   $(7,822)  $ 2,739   $(5,083)     $2,019     $ (707)  $ 1,312   $ 4,034   $(1,412)  $ 2,622
Less:  reclassification
   adjustments                      312      (109)      203          (5)         2        (3)    3,453    (1,209)    2,244
                               ---------  --------  -------     --------    -------  --------  --------  --------  -------
Unrealized net capital
   (losses) gains                (8,134)    2,848    (5,286)      2,024       (709)    1,315       581      (203)      378
                               ---------  --------  -------     --------    -------  --------  --------  --------  -------
Other comprehensive
   (loss) income                $(8,134)  $ 2,848   $(5,286)     $2,024     $ (709)  $ 1,315     $ 581    $ (203)  $   378
                                =======   =======   =======     ========    ======== =======     =====   ========  =======
</TABLE>


11. COMMITMENTS AND CONTINGENT LIABILITIES

REGULATION AND LEGAL PROCEEDINGS
The Company's business is subject to the effects of a changing social, economic
and regulatory environment. Public and regulatory initiatives have varied and
have included employee benefit regulations, removal of barriers preventing banks
from engaging in the securities and insurance business, tax law changes
affecting the taxation of insurance companies, the tax treatment of insurance
products and its impact on the relative desirability of various personal
investment vehicles, and proposed legislation to prohibit the use of gender in
determining insurance rates and benefits. The ultimate changes and eventual
effects, if any, of these initiatives are uncertain.

From time to time the Company is involved in pending and threatened litigation
in the normal course of its business in which claims for monetary damages are
asserted. In the opinion of management, the ultimate liability, if any, arising
from such pending or threatened litigation is not expected to have a material
effect on the results of operations, liquidity or financial position of the
Company.



                                       17
<PAGE>


                       GLENBROOK LIFE AND ANNUITY COMPANY
                          NOTES TO FINANCIAL STATEMENTS
                                ($ IN THOUSANDS)


GUARANTY FUNDS
Under state insurance guaranty fund laws, insurers doing business
in a state can be assessed, up to prescribed limits, for certain obligations of
insolvent insurance companies to policyholders and claimants. The Company's
expenses related to these funds have been immaterial. These expenses are ceded
to ALIC under reinsurance agreements.

MARKETING AND COMPLIANCE ISSUES
Companies operating in the insurance and financial services markets have come
under the scrutiny of regulators with respect to market conduct and compliance
issues. Under certain circumstances, companies have been held responsible for
providing incomplete or misleading sales materials and for replacing existing
policies with policies that were less advantageous to the policyholder. The
Company monitors its sales materials and enforces compliance procedures to
mitigate any exposure to potential litigation. The Company is a member of the
Insurance Marketplace Standards Association, an organization which advocates
ethical market conduct.


                                       18
<PAGE>




                       GLENBROOK LIFE AND ANNUITY COMPANY
                            SCHEDULE IV--REINSURANCE
                                ($ IN THOUSANDS)

<TABLE>
<CAPTION>

                                                                 GROSS                      NET
YEAR ENDED DECEMBER 31, 1999                                     AMOUNT        CEDED      AMOUNT
- ----------------------------                                   ---------    ------------ ----------
<S>                                                            <C>          <C>          <C>
Life insurance in force                                        $   23,586   $   23,586   $     --
                                                               ==========   ==========   ==========

Premiums and contract charges:
         Life and annuities                                    $   27,175   $   27,175   $     --
                                                               ==========   ==========   ==========
</TABLE>


<TABLE>
<CAPTION>


                                                                 GROSS                      NET
YEAR ENDED DECEMBER 31, 1998                                      AMOUNT        CEDED      AMOUNT
- ----------------------------                                   ---------    ------------ ----------
<S>                                                            <C>          <C>          <C>

Life insurance in force                                        $   12,056   $   12,056   $     --
                                                               ==========   ==========   ==========

Premiums and contract charges:
         Life and annuities                                    $   19,009   $   19,009   $     --
                                                               ==========   ==========   ==========
</TABLE>


<TABLE>
<CAPTION>


                                                                 GROSS                      NET
YEAR ENDED DECEMBER 31, 1997                                     AMOUNT        CEDED      AMOUNT
- ----------------------------                                   ---------    ------------ ----------

<S>                                                            <C>          <C>          <C>
Life insurance in force                                        $    4,095   $    4,095   $     --
                                                               ==========   ==========   ==========

Premiums and contract charges:
         Life and annuities                                    $   11,641   $   11,641   $     --
                                                               ==========   ==========   ==========

</TABLE>




                                       19




<PAGE>

<PAGE>

                                ------------------------------------------------
                                 GLENBROOK LIFE AND
                                 ANNUITY COMPANY
                                 SEPARATE ACCOUNT A

                                 FINANCIAL STATEMENTS AS OF DECEMBER 31, 1999
                                 AND FOR THE PERIODS ENDED DECEMBER 31, 1999 AND
                                 DECEMBER 31, 1998, AND INDEPENDENT AUDITORS'
                                 REPORT

<PAGE>

INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Shareholder of
 Glenbrook Life and Annuity Company:

We have audited the accompanying statement of net assets of Glenbrook Life and
Annuity Company Separate Account A as of December 31, 1999 (including the assets
of each of the individual sub-accounts which comprise the Account as disclosed
in Note 1), and the related statements of operations for the period then
ended and the statements of changes in net assets for each of the periods in
the two year period then ended for each of the individual sub-accounts which
comprise the Account. These financial statements are the responsibility of
management. Our responsibility is to express an opinion on these financial
statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free
of material misstatement. An audit includes examining, on a test basis,
evidence supporting the amounts and disclosures in the financial statements.
Our procedures included confirmation of securities owned at December 31, 1999
by correspondence with the account custodians. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.

In our opinion, such financial statements present fairly, in all material
respects, the financial position of Glenbrook Life and Annuity Company
Separate Account A as of December 31, 1999 (including the assets of each of
the individual sub-accounts which comprise the Account), and the results of
operations for each of the individual sub-accounts for the period then ended
and the changes in their net assets for each of the periods in the two year
period then ended in conformity with generally accepted accounting principles.

/s/ Deloitte & Touche LLP

Chicago, Illinois
March 27, 2000
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

<TABLE>
STATEMENT OF NET ASSETS
DECEMBER 31, 1999
- --------------------------------------------------------------------------------------------------------------------------
   <S>                                                                                                    <C>
   ASSETS
   Allocation to Sub-Accounts investing in the AIM Variable Insurance:
       Aggressive Growth, 1,202,499 shares (cost $12,591,700)                                              $    17,121,218
       Balanced, 2,820,677 shares (cost $32,175,093)                                                            36,781,630
       Capital Appreciation, 5,640,099 shares (cost $123,610,584)                                              200,674,710
       Capital Development, 544,154 shares (cost $4,891,395)                                                     6,469,997
       Diversified Income, 2,903,217 shares (cost $31,442,374)                                                  29,206,359
       Global Utilities, 754,339 shares (cost $12,000,534)                                                      17,198,920
       Government Securities, 1,716,068 shares (cost $18,690,716)                                               18,241,806
       Growth, 5,520,352 shares (cost $122,399,910)                                                            178,031,344
       Growth and Income, 7,311,916 shares (cost $147,725,871)                                                 230,983,436
       High Yield, 1,310,837 shares (cost $12,183,042)                                                          11,823,752
       International Equity, 3,078,238 shares (cost $55,027,071)                                                90,161,585
       Money Market, 26,646,729 shares (cost $26,646,729)                                                       26,646,729
       Value, 8,644,940 shares (cost $201,358,972)                                                             289,605,478
                                                                                                          -----------------

       Total Assets                                                                                          1,152,946,964

   LIABILITIES
   Payable to Glenbrook Life and Annuity Company:
       Accrued contract maintenance charges                                                                        261,880
                                                                                                          -----------------

       Net Assets                                                                                          $ 1,152,685,084
                                                                                                          =================
</TABLE>











See notes to financial statements.

                                        2
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

<TABLE>
<CAPTION>

STATEMENTS OF OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                    AIM Variable Insurance Funds Sub-Accounts
                                                       ---------------------------------------------------------------------------


                                                                          For the Year Ended December 31, 1999
                                                       ---------------------------------------------------------------------------

                                                         Aggressive                       Capital        Capital      Diversified
                                                           Growth       Balanced       Appreciation    Development       Income
                                                       -------------  --------------  --------------  -------------  -------------
  <S>                                                  <C>            <C>             <C>             <C>            <C>
  INVESTMENT INCOME
  Dividends                                             $         -    $    632,664    $  4,236,568    $         -    $ 1,832,183
  Charges from Glenbrook Life and Annuity Company:
      Mortality and expense risk                            (98,256)       (255,170)     (1,960,006)       (45,942)      (380,130)
      Administrative expense                                 (7,992)        (20,601)       (147,276)        (3,688)       (28,594)
                                                       -------------  --------------  --------------  -------------  -------------

           Net investment income (loss)                    (106,248)        356,893       2,129,286        (49,630)     1,423,459
                                                       -------------  --------------  --------------  -------------  -------------


  REALIZED AND UNREALIZED GAINS
      (LOSSES) ON INVESTMENTS
  Realized gains (losses) from sales of investments:
      Proceeds from sales                                 3,247,524       1,924,385      24,806,931        872,588      6,926,838
      Cost of investments sold                            3,031,576       1,785,039      19,189,905        795,815      7,018,662
                                                       -------------  --------------  --------------  -------------  -------------

           Net realized gains (losses)                      215,948         139,346       5,617,026         76,773        (91,824)
                                                       -------------  --------------  --------------  -------------  -------------

  Change in unrealized gains (losses)                     4,209,609       4,020,500      51,595,684      1,390,044     (2,286,057)
                                                       -------------  --------------  --------------  -------------  -------------

           Net gains (losses) on investments              4,425,557       4,159,846      57,212,710      1,466,817     (2,377,881)
                                                       -------------  --------------  --------------  -------------  -------------


  CHANGE IN NET ASSETS
      RESULTING FROM OPERATIONS                         $ 4,319,309    $  4,516,739    $ 59,341,996    $ 1,417,187    $  (954,422)
                                                       =============  ==============  ==============  =============  =============
</TABLE>







See notes to financial statements.

                                        3
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

<TABLE>
<CAPTION>

STATEMENTS OF OPERATIONS
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                       AIM Variable Insurance Funds Sub-Accounts
                                                       ---------------------------------------------------------------------------


                                                                            For the Year Ended December 31, 1999
                                                       ---------------------------------------------------------------------------


                                                         Global         Government                       Growth          High
                                                         Utilities      Securities        Growth       and Income        Yield
                                                       -------------   ------------   -------------   -------------   ------------
  <S>                                                  <C>             <C>            <C>             <C>             <C>
  INVESTMENT INCOME
  Dividends                                             $   267,439     $  626,354     $ 6,269,902     $ 1,929,971     $  887,090
  Charges from Glenbrook Life and Annuity Company:
      Mortality and expense risk                           (165,214)      (182,421)     (1,697,514)     (2,246,247)       (89,265)
      Administrative expense                                (12,519)       (14,096)       (128,606)       (170,120)        (7,253)
                                                       -------------   ------------   -------------   -------------   ------------

          Net investment income (loss)                       89,706        429,837       4,443,782        (486,396)       790,572
                                                       -------------   ------------   -------------   -------------   ------------


  REALIZED AND UNREALIZED GAINS
      (LOSSES) ON INVESTMENTS
  Realized gains (losses) from sales of investments:
      Proceeds from sales                                 1,744,420      5,346,438      17,350,511      17,480,900      3,537,974
      Cost of investments sold                            1,411,118      5,557,193      12,650,325      11,753,105      3,542,944
                                                       -------------   ------------   -------------   -------------   ------------

          Net realized gains (losses)                       333,302       (210,755)      4,700,186       5,727,795         (4,970)
                                                       -------------   ------------   -------------   -------------   ------------

  Change in unrealized gains (losses)                     3,515,858       (528,814)     32,217,069      47,095,503       (114,157)
                                                       -------------   ------------   -------------   -------------   ------------

          Net gains (losses) on investments               3,849,160       (739,569)     36,917,255      52,823,298       (119,127)
                                                       -------------   ------------   -------------   -------------   ------------

  CHANGE IN NET ASSETS
      RESULTING FROM OPERATIONS                         $ 3,938,866     $ (309,732)    $41,361,037     $52,336,902     $  671,445
                                                       =============   ============   =============   =============   ============

</TABLE>







See notes to financial statements.

                                        4
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

STATEMENTS OF OPERATIONS
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                      AIM Variable Insurance Funds Sub-Accounts
                                                                ---------------------------------------------------------


                                                                        For the Year Ended December 31, 1999
                                                                ---------------------------------------------------------

                                                                International             Money
                                                                   Equity                 Market                Value
                                                                -------------          ------------         -------------
  <S>                                                           <C>                    <C>                  <C>
  INVESTMENT INCOME
  Dividends                                                       $2,936,034            $1,096,347            $4,751,047
  Charges from Glenbrook Life and Annuity Company:
      Mortality and expense risk                                    (817,478)             (315,536)           (2,879,219)
      Administrative expense                                         (61,096)              (23,884)             (217,899)
                                                                -------------          ------------         -------------

           Net investment income (loss)                            2,057,460               756,927             1,653,929
                                                                -------------          ------------         -------------


  REALIZED AND UNREALIZED GAINS
      (LOSSES) ON INVESTMENTS
  Realized gains (losses) from sales of investments:
      Proceeds from sales                                          8,943,538            41,107,872            24,736,258
      Cost of investments sold                                     7,211,309            41,107,872            17,493,708
                                                                -------------          ------------         -------------

           Net realized gains (losses)                             1,732,229                     -             7,242,550
                                                                -------------          ------------         -------------

  Change in unrealized gains (losses)                             26,684,961                     -            48,321,129
                                                                -------------          ------------         -------------

           Net gains (losses) on investments                      28,417,190                     -            55,563,679
                                                                -------------          ------------         -------------


  CHANGE IN NET ASSETS
      RESULTING FROM OPERATIONS                                  $30,474,650            $  756,927           $57,217,608
                                                                =============          ============          =============

</TABLE>










See notes to financial statements.

                                        5
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

<TABLE>
<CAPTION>

STATEMENTS OF CHANGES IN NET ASSETS
FOR THE YEAR ENDED DECEMBER 31,
- ------------------------------------------------------------------------------------------------------------------------------------
                                                              AIM Variable Insurance Funds Sub-Accounts
                                        --------------------------------------------------------------------------------------------


                                              Aggressive Growth                Balanced                   Capital Appreciation
                                        ----------------------------  ----------------------------  --------------------------------

                                             1999         1998 (a)        1999          1998 (a)         1999              1998
                                        -------------  -------------  -------------  -------------  ---------------  ---------------
  <S>                                   <C>            <C>            <C>            <C>            <C>              <C>
  FROM OPERATIONS
  Net investment income (loss)           $  (106,248)   $     2,547    $   356,893    $    75,806    $   2,129,286    $   1,967,873
  Net realized gains (losses)                215,948        (15,810)       139,346          5,357        5,617,026        1,110,690
  Change in unrealized gains (losses)      4,209,609        319,909      4,020,500        586,037       51,595,684       16,356,911
                                        -------------  -------------  -------------  -------------  ---------------  ---------------


  Change in net assets resulting from
    operations                             4,319,309        306,646      4,516,739        667,200       59,341,996       19,435,474
                                        -------------  -------------  -------------  -------------  ---------------  ---------------

  FROM CAPITAL TRANSACTIONS
  Deposits                                 8,035,288      2,135,109     15,618,535      6,083,120       21,442,704       27,826,970
  Benefit Payments                            (8,753)       (14,062)      (309,234)             -       (1,408,893)      (1,288,645)
  Payments on termination                   (317,202)       (25,499)      (989,411)       (25,240)     (11,709,901)      (5,665,316)
  Contract maintenance charges                (4,663)          (962)        (8,851)        (1,991)         (57,450)         (49,931)
  Transfers among the sub-accounts
      and with the Fixed Account - net     1,685,558      1,006,560     10,092,477      1,129,932       (4,128,252)      (3,082,106)
                                        -------------  -------------  -------------  -------------  ---------------  ---------------

  Change in net assets resulting
      from capital transactions            9,390,228      3,101,146     24,403,516      7,185,821        4,138,208       17,740,972
                                        -------------  -------------  -------------  -------------  ---------------  ---------------

  INCREASE (DECREASE) IN NET ASSETS       13,709,537      3,407,792     28,920,255      7,853,021       63,480,204       37,176,446

  NET ASSETS AT BEGINNING OF PERIOD        3,407,792              -      7,853,021              -      137,148,924       99,972,478
                                        -------------  -------------  -------------  -------------  ---------------  ---------------

  NET ASSETS AT END OF PERIOD            $17,117,329    $ 3,407,792    $36,773,276    $ 7,853,021    $ 200,629,128    $ 137,148,924
                                        =============  =============  =============  =============  ===============  ===============
</TABLE>





(a) For the Period Beginning May 1, 1998 and Ended December 31, 1998.





See notes to financial statements.

                                        6
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

STATEMENTS OF CHANGES IN NET ASSETS
FOR THE YEAR ENDED DECEMBER 31,
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                              AIM Variable Insurance Funds Sub-Accounts
                                          ------------------------------------------------------------------------------------------

                                                Capital Development         Diversified Income            Global Utilities
                                          ----------------------------  -----------------------------  -----------------------------

                                               1999         1998 (a)        1999            1998           1999            1998
                                          -------------  -------------  -------------  --------------  -------------  --------------
  <S>                                     <C>            <C>            <C>            <C>             <C>            <C>
  FROM OPERATIONS
  Net investment income (loss)             $   (49,630)   $    (1,482)   $ 1,423,459    $  1,441,294    $    89,706    $   116,938
  Net realized gains (losses)                   76,773        (85,264)       (91,824)        332,248        333,302        154,412
  Change in unrealized gains (losses)        1,390,044        188,558     (2,286,057)     (1,400,824)     3,515,858        890,786
                                          -------------  -------------  -------------  --------------  -------------  --------------


  Change in net assets resulting from
    operations                               1,417,187        101,812       (954,422)        372,718      3,938,866      1,162,136
                                          -------------  -------------  -------------  --------------  -------------  --------------

  FROM CAPITAL TRANSACTIONS
  Deposits                                   1,757,832      1,246,579      3,792,814       9,846,369      2,236,252      4,015,495
  Benefit Payments                            (129,146)       (13,161)      (675,319)       (385,671)      (100,968)       (46,809)
  Payments on termination                     (145,588)       (12,524)    (2,196,034)     (2,695,450)      (625,850)      (406,509)
  Contract maintenance charges                  (1,505)          (647)        (6,368)         (5,120)       (12,516)        (2,884)
  Transfers among the sub-accounts
      and with the Fixed Account - net       1,322,815        924,873        584,051      (1,467,235)     1,244,957         19,697
                                          -------------  -------------  -------------  --------------  -------------  --------------

  Change in net assets resulting
      from capital transactions              2,804,408      2,145,120      1,499,144       5,292,893      2,741,875      3,578,990
                                          -------------  -------------  -------------  --------------  -------------  --------------

  INCREASE (DECREASE) IN NET ASSETS          4,221,595      2,246,932        544,722       5,665,611      6,680,741      4,741,126

  NET ASSETS AT BEGINNING OF PERIOD          2,246,932              -     28,655,003      22,989,392     10,514,272      5,773,146
                                          -------------  -------------  -------------  --------------  -------------  --------------

  NET ASSETS AT END OF PERIOD              $ 6,468,527    $ 2,246,932    $29,199,725    $ 28,655,003    $17,195,013    $ 10,514,272
                                          =============   ============   =============  =============   ============   ============

</TABLE>




(a) For the Period Beginning May 1, 1998 and Ended December 31, 1998.






See notes to financial statements.

                                        7
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

STATEMENTS OF CHANGES IN NET ASSETS
FOR THE YEAR ENDED DECEMBER 31,
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                             AIM Variable Insurance Funds Sub-Accounts
                                         -------------------------------------------------------------------------------------------

                                              Government Securities               Growth                 Growth and Income
                                         ----------------------------- ------------------------------ ------------------------------

                                               1999          1998           1999           1998            1999           1998
                                         -------------- -------------- -------------- --------------- -------------- ---------------
  <S>                                    <C>            <C>            <C>            <C>             <C>            <C>
  FROM OPERATIONS
  Net investment income (loss)            $    429,837   $    168,997   $  4,443,782   $   5,382,105   $   (486,396)  $     308,794
  Net realized gains (losses)                 (210,755)       153,359      4,700,186         987,982      5,727,795       1,053,908
  Change in unrealized gains (losses)         (528,814)       130,670     32,217,069      16,303,872     47,095,503      23,957,880
                                         -------------- -------------- -------------- --------------- -------------- ---------------


  Change in net assets resulting from
    operations                                (309,732)       453,026     41,361,037      22,673,959     52,336,902      25,320,582
                                         -------------- -------------- -------------- --------------- -------------- ---------------

  FROM CAPITAL TRANSACTIONS
  Deposits                                   4,797,984      4,568,260     32,904,800      23,869,470     41,198,795      36,230,581
  Benefit Payments                            (275,085)      (124,034)    (1,384,416)       (975,193)    (2,333,670)     (1,638,147)
  Payments on termination                     (882,622)    (1,262,189)    (9,060,632)     (3,190,196)    (9,522,305)     (5,238,011)
  Contract maintenance charges                  (3,191)        (2,326)       (33,261)        (34,053)       (66,649)        (40,480)
  Transfers among the sub-accounts
      and with the Fixed Account - net       3,392,041      1,923,252     10,386,196       3,705,981     13,778,324       3,017,320
                                         -------------- -------------- -------------- --------------- -------------- ---------------

  Change in net assets resulting
      from capital transactions              7,029,127      5,102,963     32,812,687      23,376,009     43,054,495      32,331,263
                                         -------------- -------------- -------------- --------------- -------------- ---------------

  INCREASE (DECREASE) IN NET ASSETS          6,719,395      5,555,989     74,173,724      46,049,968     95,391,397      57,651,845

  NET ASSETS AT BEGINNING OF PERIOD         11,518,268      5,962,279    103,817,182      57,767,214    135,539,573      77,887,728
                                         -------------- -------------- -------------- --------------- -------------- ---------------

  NET ASSETS AT END OF PERIOD             $ 18,237,663   $ 11,518,268   $177,990,906   $ 103,817,182   $230,930,970   $ 135,539,573
                                          =============  ============   =============  =============   ============   =============

</TABLE>




See notes to financial statements.

                                        8
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

STATEMENTS OF CHANGES IN NET ASSETS
FOR THE YEAR ENDED DECEMBER 31,
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                              AIM Variable Insurance Funds Sub-Accounts
                                        --------------------------------------------------------------------------------------------


                                                   High Yield             International Equity              Money Market
                                        -----------------------------  ------------------------------  -----------------------------

                                             1999          1998 (a)         1999            1998           1999            1998
                                        --------------  -------------  --------------  --------------  -------------  --------------
  <S>                                   <C>             <C>            <C>             <C>             <C>            <C>
  FROM OPERATIONS
  Net investment income (loss)           $    790,572    $   133,544    $  2,057,460    $   (327,045)   $   756,927    $    486,612
  Net realized gains (losses)                  (4,970)       (44,695)      1,732,229         509,511              -           2,406
  Change in unrealized gains (losses)        (114,157)      (245,133)     26,684,961       6,041,195              -               -
                                        --------------  -------------  --------------  --------------  -------------  --------------


  Change in net assets resulting from
    operations                                671,445       (156,284)     30,474,650       6,223,661        756,927         489,018
                                        --------------  -------------  --------------  --------------  -------------  --------------

  FROM CAPITAL TRANSACTIONS
  Deposits                                  4,635,730      3,163,932       6,382,730       8,980,894      6,179,730      11,012,762
  Benefit Payments                            (69,216)       (27,383)       (568,866)       (545,615)    (1,376,343)       (581,205)
  Payments on termination                    (518,964)       (26,647)     (4,009,274)     (2,469,363)   (27,460,642)     (4,230,248)
  Contract maintenance charges                 (2,856)          (891)        (24,027)        (19,466)        (7,523)         (2,945)
  Transfers among the sub-accounts
      and with the Fixed Account - net      3,544,455        607,744       1,139,993      (1,619,523)    30,250,774      (2,261,847)
                                        --------------  -------------  --------------  --------------  -------------  --------------

  Change in net assets resulting
      from capital transactions             7,589,149      3,716,755       2,920,556       4,326,927      7,585,996       3,936,517
                                        --------------  -------------  --------------  --------------  -------------  --------------

  INCREASE (DECREASE) IN NET ASSETS         8,260,594      3,560,471      33,395,206      10,550,588      8,342,923       4,425,535

  NET ASSETS AT BEGINNING OF PERIOD         3,560,471              -      56,745,899      46,195,311     18,297,753      13,872,218
                                        --------------  -------------  --------------  --------------  -------------  --------------

  NET ASSETS AT END OF PERIOD            $ 11,821,065    $ 3,560,471    $ 90,141,105    $ 56,745,899    $26,640,676    $ 18,297,753
                                         =============   ============   =============   =============   ============   =============

</TABLE>






(a) For the Period Beginning May 1, 1998 and Ended December 31, 1998.





See notes to financial statements.

                                        9
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

STATEMENTS OF CHANGES IN NET ASSETS
FOR THE YEAR ENDED DECEMBER 31,
- --------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                        AIM Variable Insurance
                                                          Funds Sub-Accounts
                                                   -------------------------------


                                                                Value
                                                   -------------------------------

                                                        1999             1998
                                                   --------------  ---------------
  <S>                                              <C>             <C>
  FROM OPERATIONS
  Net investment income (loss)                      $  1,653,929    $   5,973,408
  Net realized gains (losses)                          7,242,550        1,063,109
  Change in unrealized gains (losses)                 48,321,129       29,565,438
                                                   --------------  ---------------


  Change in net assets resulting from operations      57,217,608       36,601,955
                                                   --------------  ---------------

  FROM CAPITAL TRANSACTIONS
  Deposits                                            57,580,730       42,925,682
  Benefit Payments                                    (2,736,914)      (1,481,255)
  Payments on termination                            (15,807,346)      (6,178,474)
  Contract maintenance charges                           (84,128)         (56,393)
  Transfers among the sub-accounts
      and with the Fixed Account - net                20,233,291        2,724,682
                                                   --------------  ---------------

  Change in net assets resulting
      from capital transactions                       59,185,633       37,934,242
                                                   --------------  ---------------

  INCREASE (DECREASE) IN NET ASSETS                  116,403,241       74,536,197

  NET ASSETS AT BEGINNING OF PERIOD                  173,136,456       98,600,259
                                                   --------------  ---------------

  NET ASSETS AT END OF PERIOD                       $289,539,697    $ 173,136,456
                                                   =============   ===============
</TABLE>






See notes to financial statements.

                                       10
<PAGE>

GLENBROOK LIFE AND ANNUITY COMPANY SEPARATE ACCOUNT A

NOTES TO FINANCIAL STATEMENTS

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


1.    ORGANIZATION

      Glenbrook Life and Annuity Company Separate Account A (the "Account"), a
      unit investment trust registered with the Securities and Exchange
      Commission under the Investment Company Act of 1940, is a Separate Account
      of Glenbrook Life and Annuity Company ("Glenbrook Life"). The assets of
      the Account are legally segregated from those of Glenbrook Life. Glenbrook
      Life is wholly owned by Allstate Life Insurance Company, a wholly owned
      subsidiary of Allstate Insurance Company, which is wholly owned by The
      Allstate Corporation.

      Glenbrook Life issues the AIM Lifetime-SM- Plus and AIM Lifetime-SM-
      Plus II variable annuity contracts, the deposits of which are invested at
      the direction of the contractholders in the sub-accounts that comprise the
      Account. Absent any contract provisions wherein Glenbrook Life
      contractually guarantees either a minimum return or account value to the
      beneficiaries of the contractholders in the form of a death benefit, the
      contractholders bear the investment risk that the sub-accounts may not
      meet their stated objectives. The sub-accounts invest in the following
      underlying mutual fund portfolios of the AIM Variable Insurance Funds,
      Inc. (the "Funds").

          Aggressive Growth               Growth
          Balanced                        Growth and Income
          Capital Appreciation            High Yield
          Capital Development             International Equity
          Diversified Income              Money Market
          Global Utilities                Value
          Government Securities

      Glenbrook Life provides insurance and administrative services to the
      contractholders for a fee. Glenbrook Life also maintains a fixed account
      ("Fixed Account"), to which contractholders may direct their deposits and
      receive a fixed rate of return. Glenbrook Life has sole discretion to
      invest the assets of the Fixed Account, subject applicable law.



2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

      VALUATION OF INVESTMENTS - Investments consist of shares of the Funds and
      are stated at fair value based on quoted market prices at December 31,
      1999.

      INVESTMENT INCOME - Investment income consists of dividends declared by
      the Funds and is recognized on the ex-dividend date.

      REALIZED GAINS AND LOSSES - Realized gains and losses represent the
      difference between the proceeds from sales of portfolio shares by the
      Account and the cost of such shares, which is determined on a weighted
      average basis.

      FEDERAL INCOME TAXES - The Account intends to qualify as a segregated
      asset account as defined in the Internal Revenue Code ("Code"). As such,
      the operations of the Account are included in the tax return of Glenbrook
      Life. Glenbrook Life is taxed as a life insurance company under the Code.
      No federal income taxes are allocable to the Account as the Account did
      not generate taxable income.


                                       11
<PAGE>

2.    SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

      USE OF ESTIMATES - The preparation of financial statements in conformity
      with generally accepted accounting principles requires management to make
      estimates and assumptions that affect the amounts reported in the
      financial statements and accompanying notes. Actual results could differ
      from those estimates.



3.    EXPENSES

      ADMINISTRATIVE EXPENSE CHARGE - Glenbrook Life deducts administrative
      expense charges daily at a rate equal to .10% per annum of the average
      daily net assets of the Account. Glenbrook Life guarantees that the amount
      of this charge will not increase over the life of the contract.

      CONTRACT MAINTENANCE CHARGE - Glenbrook Life deducts an annual maintenance
      charge of $35 on each contract anniversary and guarantees that this charge
      will not increase over the life of the contract. This charge will be
      waived if certain conditions are met.

      MORTALITY AND EXPENSE RISK CHARGE - Glenbrook Life assumes mortality and
      expense risks related to the operations of the Account and deducts charges
      daily. The mortality and expense risk charge covers insurance benefits
      available with the contract and certain expenses of the contract. It also
      covers the risk that the current charges will not be sufficient in the
      future to cover the cost of administering the contract. Glenbrook Life
      guarantees that the amount of this charge will not increase over the life
      of the contract. At the contractholder's discretion, additional options,
      primarily death benefits, may be purchased for an additional charge.
      Glenbrook Life guarantees that the amount of this charge will not increase
      over the life of the contract.









                                       12
<PAGE>

4. UNITS ISSUED AND REDEEMED

(Units in whole amounts)

<TABLE>
<CAPTION>
                                                                          AIM LIFETIME PLUS CONTRACTS

                                                                           Unit activity during 1999:
                                                                  ---------------------------------------------
                                                                                                                    Accumulation
                                              Units Outstanding      Units         Units     Units Outstanding       Unit Value
                                              December 31, 1998     Issued       Redeemed    December 31, 1999   December 31, 1999
                                             -------------------  ----------   ------------ ------------------- -------------------
<S>                                          <C>                  <C>          <C>          <C>                 <C>
Investments in the AIM Variable Insurance
  Funds Sub-Accounts:

         Aggressive Growth                              163,537     184,361      (100,135)             247,763             $ 13.99
         Balanced                                       244,603     159,944      (106,859)             297,688               13.16
         Capital Appreciation                         8,770,421     307,397    (1,617,429)           7,460,389               21.35
         Capital Development                            126,384      26,585       (48,513)             104,456               11.66
         Diversified Income                           2,301,209     214,498      (565,733)           1,949,974               11.63
         Global Utilities                               630,811      62,993       (89,561)             604,243               20.43
         Government Securities                          912,586     238,814      (359,467)             791,933               11.19
         Growth                                       5,170,994     385,091      (891,193)           4,664,892               25.26
         Growth and Income                            6,935,245     519,163      (978,168)           6,476,240               24.14
         High Yield                                     170,679     271,185      (234,238)             207,626                9.96
         International Equity                         3,847,934     256,272      (621,547)           3,482,659               21.91
         Money Market                                 1,389,344   3,699,838    (3,452,257)           1,636,925               11.48
         Value                                        9,222,186     692,912    (1,465,091)           8,450,007               22.59


Units relating to accrued contract maintenance charges are included in units redeemed.
</TABLE>

                                       13
<PAGE>

4. UNITS ISSUED AND REDEEMED


(Units in whole amounts)

<TABLE>
<CAPTION>
                                                                          AIM LIFETIME PLUS II CONTRACTS

                                                                           Unit activity during 1999:
                                                                  ---------------------------------------------
                                                                                                                    Accumulation
                                              Units Outstanding      Units         Units     Units Outstanding       Unit Value
                                              December 31, 1998     Issued       Redeemed    December 31, 1999   December 31, 1999
                                             -------------------  ----------   ------------ ------------------- -------------------
<S>                                          <C>                  <C>          <C>          <C>                 <C>
Investments in the AIM Variable Insurance Sub-Accounts:

              Aggressive Growth                           50,119     301,769        (16,964)            334,924             $ 15.11
              Balanced                                    67,315     607,933        (48,268)            626,980               13.33
              Capital Appreciation                        97,387     773,222        (40,902)            829,707               15.79
              Capital Development                         12,713     120,814         (7,555)            125,972               12.66
              Diversified Income                          31,735     229,422        (12,632)            248,525                9.58
              Global Utilities                            28,175      89,775         (5,466)            112,484               14.27
              Government Securities                       52,212     405,077        (54,789)            402,500               10.16
              Growth                                      77,514   1,170,719        (72,062)          1,176,171               15.82
              Growth and Income                          112,627   1,431,896        (71,562)          1,472,961               15.51
              High Yield                                  61,267     367,205        (53,638)            374,834                9.95
              International Equity                        34,979     272,471        (13,429)            294,021               14.84
              Money Market                               104,779     380,718       (201,276)            284,221               10.58
              Value                                      139,946   1,851,057        (89,163)          1,901,840               15.09


Units relating to accrued contract maintenance charges are included in units redeemed.
</TABLE>

                                       14
<PAGE>

4. UNITS ISSUED AND REDEEMED


(Units in whole amounts)

<TABLE>
<CAPTION>
                                                       AIM LIFETIME PLUS II CONTRACTS WITH ENHANCED DEATH BENEFIT COMBINATION

                                                                           Unit activity during 1999:
                                                                  ---------------------------------------------
                                                                                                                    Accumulation
                                              Units Outstanding      Units         Units     Units Outstanding       Unit Value
                                              December 31, 1998     Issued       Redeemed    December 31, 1999   December 31, 1999
                                             -------------------  ----------   ------------ ------------------- -------------------
<S>                                          <C>                  <C>          <C>          <C>                 <C>
Investments in the AIM Variable Insurance Sub-Accounts:

             Aggressive Growth                           57,688     441,244      (184,184)             314,748             $ 15.06
             Balanced                                   221,488     980,109       (52,252)           1,149,345               13.29
             Capital Appreciation                       223,554     939,687       (58,091)           1,105,150               15.74
             Capital Development                         55,046     165,029       (24,952)             195,123               12.62
             Diversified Income                          40,007     293,800       (56,771)             277,036                9.55
             Global Utilities                            21,377     133,089        (7,935)             146,531               14.23
             Government Securities                       15,866     410,394       (95,946)             330,314               10.13
             Growth                                     182,188   1,469,272       (60,766)           1,590,694               15.77
             Growth and Income                          276,962   1,900,703       (90,586)           2,087,079               15.47
             High Yield                                 103,485     315,867       (57,447)             361,905                9.91
             International Equity                        63,514     351,411       (40,551)             374,374               14.79
             Money Market                               111,395     420,695      (281,583)             250,507               10.55
             Value                                      350,953   2,714,994      (153,067)           2,912,880               15.04


Units relating to accrued contract maintenance charges are included in units redeemed.
</TABLE>

                                       15
<PAGE>

4. UNITS ISSUED AND REDEEMED


(Units in whole amounts)

<TABLE>
<CAPTION>
                                                  AIM LIFETIME PLUS II CONTRACTS WITH ENHANCED DEATH AND INCOME BENEFIT COMBINATION

                                                                           Unit activity during 1999:
                                                                  ---------------------------------------------
                                                                                                                    Accumulation
                                              Units Outstanding      Units         Units     Units Outstanding       Unit Value
                                              December 31, 1998     Issued       Redeemed    December 31, 1999   December 31, 1999
                                             -------------------  ----------   ------------ ------------------- -------------------
<S>                                          <C>                  <C>          <C>          <C>                 <C>
Investments in the AIM Variable Insurance Sub-Accounts:

             Aggressive Growth                           63,177     205,731       (12,580)             256,328             $ 15.02
             Balanced                                   164,576     557,405       (25,887)             696,094               13.25
             Capital Appreciation                       203,098     526,960       (38,311)             691,747               15.69
             Capital Development                         42,275      55,546        (2,892)              94,929               12.58
             Diversified Income                          25,503     138,673        (7,740)             156,436                9.52
             Global Utilities                            16,742      66,280        (1,277)              81,745               14.18
             Government Securities                       28,964     180,838       (17,699)             192,103               10.10
             Growth                                     233,659     850,660       (36,958)           1,047,361               15.72
             Growth and Income                          384,306     939,145       (60,327)           1,263,124               15.42
             High Yield                                  55,345     215,963       (24,714)             246,594                9.88
             International Equity                        63,643     210,267        (7,798)             266,112               14.74
             Money Market                                61,481     403,123      (255,504)             209,100               10.52
             Value                                      397,504   1,397,006       (51,623)           1,742,887               15.00


Units relating to accrued contract maintenance charges are included in units redeemed.
</TABLE>

                                       16



<PAGE>

                                     PART C
                                OTHER INFORMATION


24.  FINANCIAL STATEMENTS AND EXHIBITS

    (a)  FINANCIAL STATEMENTS

Glenbrook Life and Annuity Company Financial  Statements are contained in Part B
of this Registration  Statement.  The Financial Statements of Glenbrook Life and
Annuity  Company  Separate  Account  A also  are  contained  in  Part B of  this
Registration Statement.

(b) EXHIBITS

(1)  Resolution of the Board of Directors of Glenbrook Life and Annuity  Company
     authorizing  establishment  of  the  Glenbrook  Life  and  Annuity  Company
     Separate  Account A  (Incorporated  herein by reference  to  Post-Effective
     Amendment No. 1 to Registrant's Registration Statement (File No. 033-62203)
     dated April 23, 1996.)

(2)  Not Applicable

(3)  Form  of  Underwriting  Agreement  (Incorporated  herein  by  reference  to
     Depositor's S-1 Registration  Statement (File No. 33-62193) dated March 22,
     1995)

(4)  Form of  Glenbrook  Life and  Annuity  Company  Flexible  Premium  Deferred
     Variable Annuity Contract  (Previously  filed in the initial filing of this
     Registration Statement (File No. 333-50879) dated April 24, 1998.)

(5)  Form of  Glenbrook  Life and  Annuity  Company  Flexible  Premium  Deferred
     Variable  Annuity  Contract  Application  (Previously  filed in the initial
     filing to this Registration  Statement (File No. 333-50879) dated April 24,
     1998.)

(6)(a)  Amended  and  Restated   Articles  of  Incorporation   and  Articles  of
     Redomestication of Glenbrook Life and Annuity Company  (Incorporated herein
     by reference to Depositor's Form 10-K Annual Report dated March 30, 1999.)

(6)(b) Amended  and  Restated  By-laws of  Glenbrook  Life and  Annuity  Company
     (Incorporated  herein by reference to  Depositor's  Form 10-K Annual Report
     dated March 30, 1999.)

(7)  Reinsurance  Agreement  between  Glenbrook  Life and  Annuity  Company  and
     Allstate  Life  Insurance  Company  (Incorporated  herein by  reference  to
     Pre-Effective Amendment No. 1 to Registrant's  Registration Statement (File
     No. 033-62203) dated November 22, 1995.)

(8)Participation  Agreement  with AIM  Variable  Insurance  Funds  (Incorporated
     herein by  reference to Post-  Effective  Amendment  No. 1 to  Registrant's
     Registration Statement (File No. 333-50879) dated April 23, 1996.)

(9)(a) Opinion and Consent of General Counsel  (Previously  filed in the initial
     filing of this Registration  Statement (File No. 333-50879) dated April 24,
     1998.)

(9)(b)  Opinion   and   Consent  of  General   Counsel   (Previously   filed  in
     Post-Effective  Amendment  No 1 to this  Registration  Statement  (File No.
     333-50879)  dated April 30,  1999.)

(9)(c) Opinion and Consent of General Counsel  (Incorporated herein by reference
     Post- Effective  Amendment No. 2 to this  Registration  Statement (File No.
     333-50879) dated December 30, 1999.)

(10)(a) Independent Auditors' Consent

(10)(b) Consent of Freedman, Levy, Kroll & Simonds

(11) Not applicable

(12) Not applicable

(13)(a)  Performance  Data  Calculations  (Previously  filed  in  Post-Effective
     Amendment No. 1 to this  Registration  Statement (File No. 333-50879) dated
     July 24, 1998).

(13)(b) Performance Data Calculations

(14) Not applicable

(99) Powers of Attorney for Thomas J. Wilson,  II, Michael J. Velotta,  Sarah R.
     Donahue,  Brent H.  Hamann,  John R. Hunter,  Kevin R.  Salwin,  Timothy N.
     Vander Pas, G. Craig Whitehead and Samuel H. Pilch.
<PAGE>

25.  DIRECTORS AND OFFICERS OF THE DEPOSITOR
<TABLE>
<CAPTION>
NAME AND PRINCIPAL                  POSITION AND OFFICE WITH
BUSINESS ADDRESS                    DEPOSITOR OF THE ACCOUNT

<S>                                  <C>
Thomas J. Wilson, II                Director, President and Chief Operating Officer
Michael J. Velotta                  Director, Vice President, Secretary and General Counsel
Sarah R. Donahue                    Director and Assistant Vice President
Brent H. Hamann                     Director
John R. Hunter                      Director and Vice President
Kevin R. Slawin                     Director and Vice President
Timothy N. Vander Pas               Director and Assistant Vice President
G. Craig Whitehead                  Director and Assistant Vice President
Casey J. Sylla                      Chief Investment Officer
Marla G. Friedman                   Vice President
James P. Zils                       Treasurer
Samuel H. Pilch                     Controller
C. Nelson Strom                     Assistant Vice President and Corporate Actuary
Barry S. Paul                       Assistant Vice President and Assistant Treasurer
Karen H. Gardner                    Vice President
Joanne M. Derrig                    Assistant Secretary, Assistant General Counsel and Chief Compliance Officer
Emma M. Kalaidjian                  Assistant Secretary
Paul N. Kierig                      Assistant Secretary
Mary J. McGinn                      Assistant Secretary
A. Sales Miller                     Assisant Vice President, Operations
Patricia W. Wilson                  Assistant Treasurer
</TABLE>

The principal  business address of the foregoing  officers and directors is 3100
Sanders Road, Northbrook, Illinois 60062.


26.  PERSONS CONTROLLED BY OR UNDER COMMON CONTROL WITH DEPOSITOR OR REGISTRANT

Incorporated  herein by  reference to Annual  Report on Form 10-K,  filed by the
Allstate Corporation on March 28, 2000 (File No. 1-11840).


27.  NUMBER OF CONTRACT OWNERS

As of February  15,  2000,  there were 4,791  nonqualified  contracts  and 2,407
qualified contracts.


<PAGE>
28.  INDEMNIFICATION

The by-laws of both Glenbrook Life and Annuity Company  ("Depositor")  and ALFS,
Inc. ("Distributor"), provide for the indemnification of its directors, officers
and controlling persons, against expenses, judgements, fines and amounts paid in
settlement  as  incurred  by such  person,  if such person  acted  properly.  No
indemnification  shall be made in respect  of any  claim,  issue or matter as to
which such  person  shall have been  adjudged  to be liable  for  negligence  or
misconduct  in  the  performance  of a duty  to  the  company,  unless  a  court
determines such person is entitled to such indemnity.

Insofar as  indemnification  for liability  arising out of the Securities Act of
1933 may be permitted to  directors,  officers  and  controlling  persons of the
registrant pursuant to the foregoing  provisions,  or otherwise,  the registrant
has been advised that in the opinion of the Securities  and Exchange  Commission
such  indemnification  is against  public policy as expressed in the Act and is,
therefore,  unenforceable. In the event that a claim for indemnification against
such liabilities (other than payment by the registrant of expenses incurred by a
director,  officer or  controlling  person of the  registrant in the  successful
defense of any action, suit or proceeding) is asserted by such director, officer
or controlling  person in connection with the securities being  registered,  the
registrant will, unless in the opinion of is counsel the matter has been settled
by  controlling  precedent,  submit to a court of appropriate  jurisdiction  the
question  whether  such  indemnification  by  it is  against  public  policy  as
expressed  in the Act and will be  governed  by the final  adjudication  of such
issue.


29.  PRINCIPAL UNDERWRITERS

(a) Registrant's  principal  underwriter also acts as principal  underwriter for
the following investment companies:

o        Glenbrook  Life  Multi-Manager  Variable  Account
o        Glenbrook  Life  and  Annuity  Company  Variable  Annuity  Account
o        Glenbrook  Life  Scudder Variable  Account (A)
o        Glenbrook  Life Variable Life Separate  Account A
o        Glenbrook Life Variable Life Separate Account B
o        Allstate Life of New York Separate Account A
o        Glenbrook Life AIM Life Variable Separate Account A
o        Allstate Financial Advisors Separate Account A
o        Charter National Variable Account
o        Charter National Variable Annuity Account
o        Intramerica Variable Annuity Account


<PAGE>

(b) The directors and principal officers of the principal underwriter are:
<TABLE>
<CAPTION>
Name and Principal Business                 Positions and Offices
Address* of Each Such Person                with Underwriter
- -------------------------------------------------------------------------------
<S>                                          <C>
Kevin R. Slawin                              Director
Michael J. Velotta                           Director and Secretary
John R. Hunter                               President and Chief Executive Officer
Janet H. Albers                              Vice President and Controller
Brent H. Hamann                              Vice President
Andrea J. Schur                              Vice President
Terry R. Young                               General Counsel and Assistant Secretary
James P. Zils                                Treasurer
Lisa A. Burnell                              Assistant Vice President and Compliance Officer
Emma M. Kalaidjian                           Assistant Secretary
Joanne M. Derrig                             Assistant Secretary and Assistant General Counsel
Carol S. Watson                              Assistant Secretary
Barry S. Paul                                Assistant Treasurer

</TABLE>

* The principal business address of the above-named  individuals is 3100 Sanders
Road, Northbrook, Illinois.

 (c)  Compensation of ALFS, Inc.

None.

30.  LOCATION OF ACCOUNTS AND RECORDS

The Depositor,  Glenbrook Life and Annuity  Company,  is located at 3100 Sanders
Road,  Northbrook,  Illinois 60062.  The principal  underwriter,  ALFS, Inc., is
located at 3100 Sanders Road, Northbrook, Illinois 60062. Each company maintains
those accounts and records  required to be maintained  pursuant to Section 31(a)
of the Investment Company Act and the rules promulgated thereunder.


31.  MANAGEMENT SERVICES

None

32.  UNDERTAKINGS

Registrant  undertakes to file a  post-effective  amendment to the  Registration
Statement as  frequently  as is  necessary to ensure that the audited  financial
statements in the  Registration  Statement are never more than 16 months old for
so long as  payments  under the  variable  annuity  contracts  may be  accepted.
Registrant  furthermore  agrees to include either, as part of any application to
purchase a contract  offered  by the  prospectus,  a  toll-free  number  that an
applicant  can call to request a Statement of Additional  Information  or a post
card or similar written  communication  affixed to or included in the Prospectus
that the applicant can remove to send for a Statement of Additional Information.
Finally,   the  Registrant   agrees  to  deliver  any  Statement  of  Additional
Information  and any financial  statements  required to be made available  under
this Form N-4 promptly upon written or oral request.


REPRESENTATIONS PURSUANT TO SECTION 403(B) OF THE INTERNAL
REVENUE CODE

Registrant represents that it is relying upon a November 28, 1988 Securities and
Exchange  Commission  no-action  letter  issued to the American  Council of Life
Insurance  ("ACLI") and that the  provisions of paragraphs  1-4 of the no-action
letter have been complied with.


REPRESENTATION REGARDING CONTRACT EXPENSES

Glenbrook Life and Annuity Company represents that the fees and charges deducted
under the Contracts described in this Registration  Statement, in the aggregate,
are reasonable in relation to the services rendered, the expenses expected to be
incurred,  and the risks assumed by Glenbrook Life and Annuity Company under the
Contracts.  Glenbrook Life and Annuity Company bases its  representation  on its
assessment  of all of the  facts  and  circumstances,  including  such  relevant
factors as: the nature and extent of such services, expenses and risks; the need
for Glenbrook Life and Annuity Company to earn a profit; the degree to which the
Contracts  include  innovative  features;   and  the  regulatory  standards  for
exemptive relief under the Investment  Company Act of 1940 used prior to October
1996, including the range of industry practice.  This representation  applies to
all Contracts sold pursuant to this Registration Statement, including those sold
on the terms specifically  described in the prospectus(es)  contained herein, or
any variations  therein,  based on supplements,  endorsements,  or riders to any
Contracts or prospectus(es), or otherwise.

<PAGE>

                                   SIGNATURES

As  required by the  Securities  Act of 1933 and the  Investment  Company Act of
1940, the  Registrant,  Glenbrook Life and Annuity  Company  Separate  Account A
certifies  that it meets the  requirements  of  Securities  Act Rule  485(b) for
effectiveness  of  this  amended  Registration  Statement  and has  caused  this
Amendment  to the  Registration  Statement  to be  signed  on its  behalf by the
undersigned,  thereunto duly authorized, and its seal to be hereunto affixed and
attested, all in the Township of Northfield,  State of Illinois, on the 18th day
of April, 2000.


                       GLENBROOK LIFE AND ANNUITY COMPANY
                               SEPARATE ACCOUNT A
                                  (REGISTRANT)

                     BY: GLENBROOK LIFE AND ANNUITY COMPANY
                                  (DEPOSITOR)




                                     By:      /s/ MICHAEL J. VELOTTA
                                             --------------------------
                                                 Michael J. Velotta
                                                 Vice President, Secretary and
                                                 General Counsel

As required by the Securities Act of 1933, this amended  Registration  Statement
has been duly signed below by the  following  Directors and Officers of Allstate
Life Insurance Company of New York on the 18th day of April, 2000.

<TABLE>
<CAPTION>


<S>                                        <C>
*/THOMAS J. WILSON, II                    President, Chief Operating Officer
Thomas J. Wilson, II                      and Director, (Principal Executive Officer)



/s/MICHAEL J. VELOTTA                     Vice President, Secretary,
Michael J. Velotta                         General Counsel and Director


*/JOHN R. HUNTER                           Vice President and Director
John R. Hunter


*/KEVIN R. SLAWIN                          Vice President and Director
Kevin R. Slawin                            (Principal Financial Officer)


*/SAMUEL H. PILCH                          Controller
Samuel H. Pilch                            (Principal Accounting Officer)


*/SARAH R. DONAHUE                         Assistant Vice President and Director
Sarah R. Donahue


*/TIMOTHY N. VANDER PAS                    Assistant Vice President and Director
Timothy N. Vander Pas


*/BRENT H. HAMANN                          Director
Brent H. Hamann

*/G. CRAIG WHITEHEAD                       Assistant Vice President and Director
G. Craig Whitehead


*/By Michael J. Velotta, pursuant to Powers of Attorney filed herewith
</TABLE>

<PAGE>

Exhibit Index

Item No.                 Description

10(a)                    Independent Auditors' Consent
10(b)                    Consent of Freedman, Levy, Kroll & Simonds
13(b)                    Performance Data Calculations
99                       Powers of Attorney

10(a)                    Independent Auditors' Consent

INDEPENDENT AUDITORS' CONSENT

We consent to the use in this  Post-Effective  Amendment  No. 3 to  Registration
Statement No. 333-50879 of Glenbrook Life and Annuity Company Seperate Account A
of Glenbrook  Life and Annuity  Company on Form N-4 of our report dated February
25,  2000  relating  to the  financial  statements  and  the  related  financial
statement  schedule of Glenbrook Life and Annuity Company,  and our report dated
March 27, 2000  relating  to the  financial  statements  of  Glenbrook  Life and
Annuity  Company  Seperate  Account A,  appearing in the Statement of Additional
Information  (which is  incorporated by reference in the Prospectus of Glenbrook
Life and  Annuity  Company  Seperate  Account A of  Glenbrook  Life and  Annuity
Company),  which is part of such Registration Statement, and to the reference to
us under the heading  "Experts" in such  Prospectus  and Statement of Additional
Information.



Chicago, Illinois
April 18, 2000



<PAGE>

10(b)                    Consent of Freedman, Levy, Kroll & Simonds


FREEDMAN, LEVY, KROLL & SIMONDS



                                   CONSENT OF
                         FREEDMAN, LEVY, KROLL & SIMONDS


     We hereby  consent to the  reference  to our firm under the caption  "Legal
Matters" in the prospectus  contained in  Post-Effective  Amendment No. 4 to the
Form N-4  Registration  Statement of Glenbrook Life and Annuity Company Separate
Account A (File No. 333-50879).


                             /s/  Freedman, Levy, Kroll & Simonds
                             FREEDMAN, LEVY, KROLL & SIMONDS

Washington, D.C.
April 19, 2000



<TABLE>
<CAPTION>
BASE CONTRACT
AIM Telecommunications
<S>           <C>          <C>           <C>     <C>                                             <C>
  31-Dec-94
    TO                     NO. YEARS     5.000
  31-Dec-99
            TRANSACTION     DATE     $ VALUE     UNIT VALUE NO. UNITSEND VALUE  SURRENDER CHARGES

          0 INIT DEPOSIT  31-Dec-94    1000.00     7.964334 125.55977
          1 FEE           31-Dec-95 0.568227941    9.741081  0.05833                            0.07
          2 FEE           31-Aug-95 0.568227941   10.107524  0.05622                            0.07
          3 FEE           31-Dec-97 0.568227941   13.028386  0.04361                            0.06
          4 FEE           31-Dec-98 0.568227941   15.731002  0.03612                            0.06
          5 FEE           31-Dec-99 0.568227941   32.138265  0.01768                            0.05

     RESULTING VALUE      31-Dec-99               32.138265 125.46235 4032.1424

                                         5.000
  FORMULA:                           1000*(1+T)=  4032.1424
                                             =   3860.776334
                                           T =       31.02%   32.16%
                                           R =      286.08%


AIM Blue Chip
  29-Dec-99
    TO                     NO. YEARS     0.005
  31-Dec-99
            TRANSACTION     DATE     $ VALUE     UNIT VALUE NO. UNITSEND VALUE  SURRENDER CHARGES

          0 INIT DEPOSIT  29-Dec-99    1000.00     9.751656 102.54669
          1 FEE           31-Dec-99 0.568227941    9.751068  0.05827                            0.07
          2 FEE          N/A                 0   N/A         0.00000                            0.07
          3 FEE          N/A                 0   N/A         0.00000                            0.06
          4 FEE          N/A                 0   N/A         0.00000                            0.06
          5 FEE          N/A                 0   N/A         0.00000                            0.05
          6 FEE          N/A                 0   N/A         0.00000                            0.04
          7 FEE          N/A                 0   N/A         0.00000                            0.03
          8 FEE          N/A                 0   N/A         0.00000                               0
          9 FEE          N/A                 0   N/A         0.00000                               0
         10 FEE          N/A                 0   N/A         0.00000                               0
         11 FEE          N/A                 0   N/A         0.00000                               0
         12 FEE          N/A                 0   N/A         0.00000                               0
         13 FEE          N/A                 0   N/A         0.00000                               0
         14 FEE          N/A                 0   N/A         0.00000                               0
         15 FEE          N/A                 0   N/A         0.00000                               0

     RESULTING VALUE      31-Dec-99                9.751068 102.48841  999.3715

                                         0.005
  FORMULA:                           1000*(1+T)=   999.3715
                                             =   939.9088948
                                           T =     -100.00%  -10.85%
                                           R =       -6.01%

<PAGE>

AIM Dent Demo
  29-Dec-99
    TO                     NO. YEARS     0.005
  31-Dec-99
            TRANSACTION     DATE     $ VALUE     UNIT VALUE NO. UNITSEND VALUE  SURRENDER CHARGES

          0 INIT DEPOSIT  29-Dec-99    1000.00     9.751655 102.54669
          1 FEE           31-Dec-99 0.568227941    9.751068  0.05827                            0.07
          2 FEE          N/A                 0   N/A         0.00000                            0.07
          3 FEE          N/A                 0   N/A         0.00000                            0.06
          4 FEE          N/A                 0   N/A         0.00000                            0.06
          5 FEE          N/A                 0   N/A         0.00000                            0.05
          6 FEE          N/A                 0   N/A         0.00000                            0.04
          7 FEE          N/A                 0   N/A         0.00000                            0.03
          8 FEE          N/A                 0   N/A         0.00000                               0
          9 FEE          N/A                 0   N/A         0.00000                               0
         10 FEE          N/A                 0   N/A         0.00000                               0
         11 FEE          N/A                 0   N/A         0.00000                               0
         12 FEE          N/A                 0   N/A         0.00000                               0
         13 FEE          N/A                 0   N/A         0.00000                               0
         14 FEE          N/A                 0   N/A         0.00000                               0
         15 FEE          N/A                 0   N/A         0.00000                               0

     RESULTING VALUE      31-Dec-99                9.751068 102.48842  999.3715

                                         0.005
  FORMULA:                           1000*(1+T)=   999.3715
                                             =   939.9088948
                                           T =     -100.00%  -10.85%
                                           R =       -6.01%


AIM Global G&I
  10-Feb-93
    TO                     NO. YEARS     6.886
  31-Dec-99
            TRANSACTION     DATE     $ VALUE     UNIT VALUE NO. UNITSEND VALUE  SURRENDER CHARGES

          0 INIT DEPOSIT  10-Feb-93    1000.00     6.670451 149.91490
          1 FEE           10-Feb-94 0.568227941    7.807983  0.07278                            0.07
          2 FEE           10-Feb-95 0.568227941    7.521746  0.07554                            0.07
          3 FEE           10-Feb-96 0.568227941    8.608126  0.06601                            0.06
          4 FEE           10-Feb-97 0.568227941    9.857387  0.05764                            0.06
          5 FEE           10-Feb-98 0.568227941   11.633861  0.04884                            0.05
          6 FEE           10-Feb-99 0.568227941   12.890156  0.04408                            0.04
          7 FEE           31-Dec-99 0.568227941   13.189536  0.04308                            0.03
          8 FEE          N/A                 0   N/A         0.00000                               0
          9 FEE          N/A                 0   N/A         0.00000                               0
         10 FEE          N/A                 0   N/A         0.00000                               0
         11 FEE          N/A                 0   N/A         0.00000                               0
         12 FEE          N/A                 0   N/A         0.00000                               0
         13 FEE          N/A                 0   N/A         0.00000                               0
         14 FEE          N/A                 0   N/A         0.00000                               0
         15 FEE          N/A                 0   N/A         0.00000                               0

     RESULTING VALUE      31-Dec-99               13.189536 149.50692 1971.9269

                                         6.886
  FORMULA:                           1000*(1+T)=  1971.9269
                                             =   1921.642751
                                           T =        9.95%   10.36%
                                           R =       92.16%

<PAGE>

AIM Telecommunications
  18-Oct-93
    TO                     NO. YEARS     6.201
  31-Dec-99
            TRANSACTION     DATE     $ VALUE     UNIT VALUE NO. UNITSEND VALUE  SURRENDER CHARGES

          0 INIT DEPOSIT  18-Oct-93    1000.00     6.915204 144.60889
          1 FEE           18-Oct-94 0.568227941    7.925019  0.07170                            0.07
          2 FEE           18-Oct-95 0.568227941   10.017621  0.05672                            0.07
          3 FEE           18-Oct-96 0.568227941   11.206261  0.05071                            0.06
          4 FEE           18-Oct-97 0.568227941   14.434247  0.03937                            0.06
          5 FEE           18-Oct-98 0.568227941   12.229141  0.04647                            0.05
          6 FEE           18-Oct-99 0.568227941   19.681991  0.02887                            0.04
          7 FEE           31-Dec-99 0.568227941   32.138265  0.01768                            0.03
          8 FEE          N/A                 0   N/A         0.00000                               0
          9 FEE          N/A                 0   N/A         0.00000                               0
         10 FEE          N/A                 0   N/A         0.00000                               0
         11 FEE          N/A                 0   N/A         0.00000                               0
         12 FEE          N/A                 0   N/A         0.00000                               0
         13 FEE          N/A                 0   N/A         0.00000                               0
         14 FEE          N/A                 0   N/A         0.00000                               0
         15 FEE          N/A                 0   N/A         0.00000                               0

     RESULTING VALUE      31-Dec-99               32.138265 144.29738 4637.4675

                                         6.201
  FORMULA:                           1000*(1+T)=  4637.4675
                                             =   4519.212099
                                           T =       27.54%   28.07%
                                           R =      351.92%
<PAGE>
DEATH BENEFIT
- --------------------------------------------------------------------------------
AIM Blue Chip
 31-Dec-98
    TO                     NO. YEARS     1.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-98    1000.00     #N/A      #N/A
         1 FEE            31-Dec-99 0.568227941   9.750154   0.05828                            0.07

     RESULTING VALUE      31-Dec-99               9.750154   #N/A       #N/A

                                         1.000
  FORMULA:                           1000*(1+T)=   #N/A
                                             =     #N/A
                                           T =     #N/A      #N/A
                                           R =     #N/A


AIM Dent Demo
 31-Dec-98
    TO                     NO. YEARS     1.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-98    1000.00     #N/A      #N/A
         1 FEE            31-Dec-99 0.568227941   9.750155   0.05828                            0.07

     RESULTING VALUE      31-Dec-99               9.750155   #N/A       #N/A

                                         1.000
  FORMULA:                           1000*(1+T)=   #N/A
                                             =     #N/A
                                           T =     #N/A      #N/A
                                           R =     #N/A
<PAGE>


AIM Global G&I
 31-Dec-98
    TO                     NO. YEARS     1.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-98    1000.00   13.380012  74.73835
         1 FEE            31-Dec-99 0.568227941  13.188359   0.04309                            0.07

     RESULTING VALUE      31-Dec-99              13.188359  74.69526   985.1079

                                         1.000
  FORMULA:                           1000*(1+T)=  985.1079
                                             =  926.494005
                                           T =      -7.35%    -1.49%
                                           R =      -7.35%


AIM Telecommunications
 31-Dec-98
    TO                     NO. YEARS     1.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-98    1000.00   15.761147  63.44716
         1 FEE            31-Dec-99 0.568227941  32.135635   0.01768                            0.07

     RESULTING VALUE      31-Dec-99              32.135635  63.42947  2038.3465

                                         1.000
  FORMULA:                           1000*(1+T)= 2038.3465
                                             =  1917.064868
                                           T =      91.71%   103.83%
                                           R =      91.71%
<PAGE>

AIM Blue Chip
 31-Dec-94
    TO                     NO. YEARS     5.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-94    1000.00     #N/A      #N/A
         1 FEE            29-Dec-95 0.568227941    #N/A      #N/A                               0.07
         2 FEE            31-Aug-95 0.568227941    #N/A      #N/A                               0.07
         3 FEE            31-Dec-97 0.568227941    #N/A      #N/A                               0.06
         4 FEE            31-Dec-98 0.568227941    #N/A      #N/A                               0.06
         5 FEE            31-Dec-99 0.568227941   9.750154   0.05828                            0.05

     RESULTING VALUE      31-Dec-99               9.750154   #N/A       #N/A

                                         5.000
  FORMULA:                           1000*(1+T)=   #N/A
                                             =     #N/A
                                           T =     #N/A      #N/A
                                           R =     #N/A


AIM Dent Demo
 31-Dec-94
    TO                     NO. YEARS     5.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-94    1000.00     #N/A      #N/A
         1 FEE            29-Dec-95 0.568227941    #N/A      #N/A                               0.07
         2 FEE            31-Aug-95 0.568227941    #N/A      #N/A                               0.07
         3 FEE            31-Dec-97 0.568227941    #N/A      #N/A                               0.06
         4 FEE            31-Dec-98 0.568227941    #N/A      #N/A                               0.06
         5 FEE            31-Dec-99 0.568227941   9.750155   0.05828                            0.05

     RESULTING VALUE      31-Dec-99               9.750155   #N/A       #N/A

                                         5.000
  FORMULA:                           1000*(1+T)=   #N/A
                                             =     #N/A
                                           T =     #N/A      #N/A
                                           R =     #N/A

<PAGE>

AIM Global G&I
 31-Dec-94
    TO                     NO. YEARS     5.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-94    1000.00    7.547924 132.48675
         1 FEE            29-Dec-95 0.568227941   8.605101   0.06603                            0.07
         2 FEE            31-Aug-95 0.568227941   7.958779   0.07140                            0.07
         3 FEE            31-Dec-97 0.568227941  11.334338   0.05013                            0.06
         4 FEE            31-Dec-98 0.568227941  13.380012   0.04247                            0.06
         5 FEE            31-Dec-99 0.568227941  13.188359   0.04309                            0.05

     RESULTING VALUE      31-Dec-99              13.188359 132.35107  1745.4933

                                         5.000
  FORMULA:                           1000*(1+T)= 1745.4933
                                             =  1671.309867
                                           T =      10.82%    11.79%
                                           R =      67.13%


AIM Telecommunications
 31-Dec-94
    TO                     NO. YEARS     5.000
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   31-Dec-94    1000.00    8.043664 124.32145
         1 FEE            29-Dec-95 0.568227941   9.819160   0.05787                            0.07
         2 FEE            31-Aug-95 0.568227941  10.194631   0.05574                            0.07
         3 FEE            31-Dec-97 0.568227941  13.079474   0.04344                            0.06
         4 FEE            31-Dec-98 0.568227941  15.761147   0.03605                            0.06
         5 FEE            31-Dec-99 0.568227941  32.135635   0.01768                            0.05

     RESULTING VALUE      31-Dec-99              32.135635 124.22427  3992.0259

                                         5.000
  FORMULA:                           1000*(1+T)= 3992.0259
                                             =  3822.364784
                                           T =      30.76%    31.90%
                                           R =     282.24%
<PAGE>


AIM Blue Chip
 29-Dec-99
    TO                     NO. YEARS     0.005
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   29-Dec-99    1000.00    9.750849 102.55517
         1 FEE            31-Dec-99 0.568227941   9.750154   0.05828                            0.07
         2 FEE           N/A                 0  N/A          0.00000                            0.07
         3 FEE           N/A                 0  N/A          0.00000                            0.06
         4 FEE           N/A                 0  N/A          0.00000                            0.06
         5 FEE           N/A                 0  N/A          0.00000                            0.05
         6 FEE           N/A                 0  N/A          0.00000                            0.04
         7 FEE           N/A                 0  N/A          0.00000                            0.03
         8 FEE           N/A                 0  N/A          0.00000                               0
         9 FEE           N/A                 0  N/A          0.00000                               0
        10 FEE           N/A                 0  N/A          0.00000                               0
        11 FEE           N/A                 0  N/A          0.00000                               0
        12 FEE           N/A                 0  N/A          0.00000                               0
        13 FEE           N/A                 0  N/A          0.00000                               0
        14 FEE           N/A                 0  N/A          0.00000                               0
        15 FEE           N/A                 0  N/A          0.00000                               0

     RESULTING VALUE      31-Dec-99               9.750154 102.49689   999.3605

                                         0.005
  FORMULA:                           1000*(1+T)=  999.3605
                                             =  939.8985883
                                           T =    -100.00%   -11.03%
                                           R =      -6.01%


AIM Dent Demo
 29-Dec-99
    TO                     NO. YEARS     0.005
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   29-Dec-99    1000.00    9.750849 102.55517
         1 FEE            31-Dec-99 0.568227941   9.750155   0.05828                            0.07
         2 FEE           N/A                 0  N/A          0.00000                            0.07
         3 FEE           N/A                 0  N/A          0.00000                            0.06
         4 FEE           N/A                 0  N/A          0.00000                            0.06
         5 FEE           N/A                 0  N/A          0.00000                            0.05
         6 FEE           N/A                 0  N/A          0.00000                            0.04
         7 FEE           N/A                 0  N/A          0.00000                            0.03
         8 FEE           N/A                 0  N/A          0.00000                               0
         9 FEE           N/A                 0  N/A          0.00000                               0
        10 FEE           N/A                 0  N/A          0.00000                               0
        11 FEE           N/A                 0  N/A          0.00000                               0
        12 FEE           N/A                 0  N/A          0.00000                               0
        13 FEE           N/A                 0  N/A          0.00000                               0
        14 FEE           N/A                 0  N/A          0.00000                               0
        15 FEE           N/A                 0  N/A          0.00000                               0

     RESULTING VALUE      31-Dec-99               9.750155 102.49689   999.3605

                                         0.005
  FORMULA:                           1000*(1+T)=  999.3605
                                             =  939.8985883
                                           T =    -100.00%   -11.03%
                                           R =      -6.01%
<PAGE>

AIM Global G&I
 10-Feb-93
    TO                     NO. YEARS     6.886
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   10-Feb-93    1000.00    6.762345 147.87769
         1 FEE            10-Feb-94 0.568227941   7.899740   0.07193                            0.07
         2 FEE            10-Feb-95 0.568227941   7.594933   0.07482                            0.07
         3 FEE            10-Feb-96 0.568227941   8.674528   0.06551                            0.06
         4 FEE            10-Feb-97 0.568227941   9.913583   0.05732                            0.06
         5 FEE            10-Feb-98 0.568227941  11.676817   0.04866                            0.05
         6 FEE            10-Feb-99 0.568227941  12.911907   0.04401                            0.04
         7 FEE            31-Dec-99 0.568227941  13.188359   0.04309                            0.03
         8 FEE           N/A                 0  N/A          0.00000                               0
         9 FEE           N/A                 0  N/A          0.00000                               0
        10 FEE           N/A                 0  N/A          0.00000                               0
        11 FEE           N/A                 0  N/A          0.00000                               0
        12 FEE           N/A                 0  N/A          0.00000                               0
        13 FEE           N/A                 0  N/A          0.00000                               0
        14 FEE           N/A                 0  N/A          0.00000                               0
        15 FEE           N/A                 0  N/A          0.00000                               0

     RESULTING VALUE      31-Dec-99              13.188359 147.47236  1944.9184

                                         6.886
  FORMULA:                           1000*(1+T)= 1944.9184
                                             =  1895.322968
                                           T =       9.73%    10.14%
                                           R =      89.53%


AIM Telecommunications
 18-Oct-93
    TO                     NO. YEARS     6.201
 31-Dec-99
            TRANSACTION     DATE     $ VALUE    UNIT VALUE NO. UNITS END VALUE  SURRENDER CHARGES

         0 INIT DEPOSIT   18-Oct-93    1000.00    7.000899 142.83879
         1 FEE            18-Oct-94 0.568227941   8.007203   0.07096                            0.07
         2 FEE            18-Oct-95 0.568227941  10.101294   0.05625                            0.07
         3 FEE            18-Oct-96 0.568227941  11.277279   0.05039                            0.06
         4 FEE            18-Oct-97 0.568227941  14.496736   0.03920                            0.06
         5 FEE            18-Oct-98 0.568227941  12.257529   0.04636                            0.05
         6 FEE            18-Oct-99 0.568227941  19.688310   0.02886                            0.04
         7 FEE            31-Dec-99 0.568227941  32.135635   0.01768                            0.03
         8 FEE           N/A                 0  N/A          0.00000                               0
         9 FEE           N/A                 0  N/A          0.00000                               0
        10 FEE           N/A                 0  N/A          0.00000                               0
        11 FEE           N/A                 0  N/A          0.00000                               0
        12 FEE           N/A                 0  N/A          0.00000                               0
        13 FEE           N/A                 0  N/A          0.00000                               0
        14 FEE           N/A                 0  N/A          0.00000                               0
        15 FEE           N/A                 0  N/A          0.00000                               0

     RESULTING VALUE      31-Dec-99              32.135635 142.52909  4580.2629

                                         6.201
  FORMULA:                           1000*(1+T)= 4580.2629
                                             =  4463.466237
                                           T =      27.28%    27.81%
                                           R =     346.35%

<PAGE>

DEATH AND INCOME BENEFIT
- --------------------------------------------------------------------------------

AIM Blue Chip
 31-Dec-98
    TO                    NO. YEARS  1.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-98 1000.00            #N/A      #N/A
         1 FEE           31-Dec-99 0.568228          9.749240  0.05828                           0.07

     RESULTING VALUE     31-Dec-99                   9.749240   #N/A     #N/A

                                     1.000
  FORMULA:                         1000*(1+T)=        #N/A
                                         =            #N/A
                                       T =            #N/A      #N/A
                                       R =            #N/A


AIM Dent Demo
 31-Dec-98
    TO                    NO. YEARS  1.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-98 1000.00            #N/A      #N/A
         1 FEE           31-Dec-99 0.568228          9.749240  0.05828                           0.07

     RESULTING VALUE     31-Dec-99                   9.749240   #N/A     #N/A

                                     1.000
  FORMULA:                         1000*(1+T)=        #N/A
                                         =            #N/A
                                       T =            #N/A      #N/A
                                       R =            #N/A
<PAGE>


AIM Global G&I
 31-Dec-98
    TO                    NO. YEARS  1.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-98 1000.00          13.405604 74.59567
         1 FEE           31-Dec-99 0.568228         13.187182  0.04309                           0.07

     RESULTING VALUE     31-Dec-99                  13.187182 74.55258  983.1384

                                     1.000
  FORMULA:                         1000*(1+T)=       983.1384
                                         =         924.6417054
                                       T =             -7.54%   -1.69%
                                       R =             -7.54%


AIM Telecommunications
 31-Dec-98
    TO                    NO. YEARS  1.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-98 1000.00          15.791349 63.32581
         1 FEE           31-Dec-99 0.568228         32.133001  0.01768                           0.07

     RESULTING VALUE     31-Dec-99                  32.133001 63.30813 2034.2802

                                     1.000
  FORMULA:                         1000*(1+T)=      2034.2802
                                         =         1913.240524
                                       T =             91.32%  103.43%
                                       R =             91.32%

<PAGE>

AIM Blue Chip
 31-Dec-94
    TO                    NO. YEARS  5.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-94 1000.00            #N/A      #N/A
         1 FEE           29-Dec-95 0.568228           #N/A      #N/A                             0.07
         2 FEE           31-Aug-95 0.568228           #N/A      #N/A                             0.07
         3 FEE           31-Dec-97 0.568228           #N/A      #N/A                             0.06
         4 FEE           31-Dec-98 0.568228           #N/A      #N/A                             0.06
         5 FEE           31-Dec-99 0.568228          9.749240  0.05828                           0.05

     RESULTING VALUE     31-Dec-99                   9.749240   #N/A     #N/A

                                     5.000
  FORMULA:                         1000*(1+T)=        #N/A
                                         =            #N/A
                                       T =            #N/A      #N/A
                                       R =            #N/A


AIM Dent Demo
 31-Dec-94
    TO                    NO. YEARS  5.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-94 1000.00            #N/A      #N/A
         1 FEE           29-Dec-95 0.568228           #N/A      #N/A                             0.07
         2 FEE           31-Aug-95 0.568228           #N/A      #N/A                             0.07
         3 FEE           31-Dec-97 0.568228           #N/A      #N/A                             0.06
         4 FEE           31-Dec-98 0.568228           #N/A      #N/A                             0.06
         5 FEE           31-Dec-99 0.568228          9.749240  0.05828                           0.05

     RESULTING VALUE     31-Dec-99                   9.749240   #N/A     #N/A

                                     5.000
  FORMULA:                         1000*(1+T)=        #N/A
                                         =            #N/A
                                       T =            #N/A      #N/A
                                       R =            #N/A

<PAGE>

AIM Global G&I
 31-Dec-94
    TO                    NO. YEARS  5.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-94 1000.00           7.623079 131.18059
         1 FEE           29-Dec-95 0.568228          8.673519  0.06551                           0.07
         2 FEE           31-Aug-95 0.568228          8.027330  0.07079                           0.07
         3 FEE           31-Dec-97 0.568228         11.378743  0.04994                           0.06
         4 FEE           31-Dec-98 0.568228         13.405604  0.04239                           0.06
         5 FEE           31-Dec-99 0.568228         13.187182  0.04309                           0.05

     RESULTING VALUE     31-Dec-99                  13.187182 131.045181728.1167

                                     5.000
  FORMULA:                         1000*(1+T)=      1728.1167
                                         =         1654.671727
                                       T =             10.60%   11.56%
                                       R =             65.47%


AIM Telecommunications
 31-Dec-94
    TO                    NO. YEARS  5.000
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  31-Dec-94 1000.00           8.123784 123.09535
         1 FEE           29-Dec-95 0.568228          9.897267  0.05741                           0.07
         2 FEE           31-Aug-95 0.568228         10.282488  0.05526                           0.07
         3 FEE           31-Dec-97 0.568228         13.130761  0.04327                           0.06
         4 FEE           31-Dec-98 0.568228         15.791349  0.03598                           0.06
         5 FEE           31-Dec-99 0.568228         32.133001  0.01768                           0.05

     RESULTING VALUE     31-Dec-99                  32.133001 122.998413952.3081

                                     5.000
  FORMULA:                         1000*(1+T)=      3952.3081
                                         =         3784.335013
                                       T =             30.50%   31.63%
                                       R =            278.43%

<PAGE>

AIM Blue Chip
 29-Dec-99
    TO                    NO. YEARS  0.005
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  29-Dec-99 1000.00           9.750041 102.56367
         1 FEE           31-Dec-99 0.568228          9.749240  0.05828                           0.07
         2 FEE          N/A              0         N/A         0.00000                           0.07
         3 FEE          N/A              0         N/A         0.00000                           0.06
         4 FEE          N/A              0         N/A         0.00000                           0.06
         5 FEE          N/A              0         N/A         0.00000                           0.05
         6 FEE          N/A              0         N/A         0.00000                           0.04
         7 FEE          N/A              0         N/A         0.00000                           0.03
         8 FEE          N/A              0         N/A         0.00000                              0
         9 FEE          N/A              0         N/A         0.00000                              0
        10 FEE          N/A              0         N/A         0.00000                              0
        11 FEE          N/A              0         N/A         0.00000                              0
        12 FEE          N/A              0         N/A         0.00000                              0
        13 FEE          N/A              0         N/A         0.00000                              0
        14 FEE          N/A              0         N/A         0.00000                              0
        15 FEE          N/A              0         N/A         0.00000                              0

     RESULTING VALUE     31-Dec-99                   9.749240 102.50538 999.3496

                                     0.005
  FORMULA:                         1000*(1+T)=       999.3496
                                         =         939.8882818
                                       T =           -100.00%  -11.20%
                                       R =             -6.01%


AIM Dent Demo
 29-Dec-99
    TO                    NO. YEARS  0.005
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  29-Dec-99 1000.00           9.750042 102.56366
         1 FEE           31-Dec-99 0.568228          9.749240  0.05828                           0.07
         2 FEE          N/A              0         N/A         0.00000                           0.07
         3 FEE          N/A              0         N/A         0.00000                           0.06
         4 FEE          N/A              0         N/A         0.00000                           0.06
         5 FEE          N/A              0         N/A         0.00000                           0.05
         6 FEE          N/A              0         N/A         0.00000                           0.04
         7 FEE          N/A              0         N/A         0.00000                           0.03
         8 FEE          N/A              0         N/A         0.00000                              0
         9 FEE          N/A              0         N/A         0.00000                              0
        10 FEE          N/A              0         N/A         0.00000                              0
        11 FEE          N/A              0         N/A         0.00000                              0
        12 FEE          N/A              0         N/A         0.00000                              0
        13 FEE          N/A              0         N/A         0.00000                              0
        14 FEE          N/A              0         N/A         0.00000                              0
        15 FEE          N/A              0         N/A         0.00000                              0

     RESULTING VALUE     31-Dec-99                   9.749240 102.50538 999.3496

                                     0.005
  FORMULA:                         1000*(1+T)=       999.3496
                                         =         939.8882818
                                       T =           -100.00%  -11.20%
                                       R =             -6.01%

<PAGE>

AIM Global G&I
 10-Feb-93
    TO                    NO. YEARS  6.886
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  10-Feb-93 1000.00           6.855507 145.86814
         1 FEE           10-Feb-94 0.568228          7.992576  0.07109                           0.07
         2 FEE           10-Feb-95 0.568228          7.668833  0.07410                           0.07
         3 FEE           10-Feb-96 0.568228          8.741444  0.06500                           0.06
         4 FEE           10-Feb-97 0.568228          9.970099  0.05699                           0.06
         5 FEE           10-Feb-98 0.568228         11.719932  0.04848                           0.05
         6 FEE           10-Feb-99 0.568228         12.933695  0.04393                           0.04
         7 FEE           31-Dec-99 0.568228         13.187182  0.04309                           0.03
         8 FEE          N/A              0         N/A         0.00000                              0
         9 FEE          N/A              0         N/A         0.00000                              0
        10 FEE          N/A              0         N/A         0.00000                              0
        11 FEE          N/A              0         N/A         0.00000                              0
        12 FEE          N/A              0         N/A         0.00000                              0
        13 FEE          N/A              0         N/A         0.00000                              0
        14 FEE          N/A              0         N/A         0.00000                              0
        15 FEE          N/A              0         N/A         0.00000                              0

     RESULTING VALUE     31-Dec-99                  13.187182 145.465441918.2793

                                     6.886
  FORMULA:                         1000*(1+T)=      1918.2793
                                         =         1869.363189
                                       T =              9.51%    9.92%
                                       R =             86.94%


AIM Telecommunications
 18-Oct-93
    TO                    NO. YEARS  6.201
 31-Dec-99
           TRANSACTION     DATE        $ VALUE     UNIT VALUE NO. UNITSEND VALUE SURRENDER CHARGES

         0 INIT DEPOSIT  18-Oct-93 1000.00           7.087656 141.09037
         1 FEE           18-Oct-94 0.568228          8.090239  0.07024                           0.07
         2 FEE           18-Oct-95 0.568228         10.185665  0.05579                           0.07
         3 FEE           18-Oct-96 0.568228         11.348747  0.05007                           0.06
         4 FEE           18-Oct-97 0.568228         14.559494  0.03903                           0.06
         5 FEE           18-Oct-98 0.568228         12.285981  0.04625                           0.05
         6 FEE           18-Oct-99 0.568228         19.694628  0.02885                           0.04
         7 FEE           31-Dec-99 0.568228         32.133001  0.01768                           0.03
         8 FEE          N/A              0         N/A         0.00000                              0
         9 FEE          N/A              0         N/A         0.00000                              0
        10 FEE          N/A              0         N/A         0.00000                              0
        11 FEE          N/A              0         N/A         0.00000                              0
        12 FEE          N/A              0         N/A         0.00000                              0
        13 FEE          N/A              0         N/A         0.00000                              0
        14 FEE          N/A              0         N/A         0.00000                              0
        15 FEE          N/A              0         N/A         0.00000                              0

     RESULTING VALUE     31-Dec-99                  32.133001 140.782474523.7631

                                     6.201
  FORMULA:                         1000*(1+T)=      4523.7631
                                         =         4408.407183
                                       T =             27.03%   27.56%
                                       R =            340.84%

</TABLE>


<PAGE>

                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by these presents that Thomas J. Wilson,  II, whose  signature
appears   below,    constitutes   and   appoints   Michael   J.   Velotta,   his
attorney-in-fact,  with power of substitution in any and all capacities, to sign
any Form N-4  registration  statements and amendments  thereto for the Glenbrook
Life and Annuity Company  Separate Account A and to file the same, with exhibits
thereto and other  documents in connection  therewith,  with the  Securities and
Exchange   Commission,   hereby   ratifying   and   confirming   all  that  said
attorney-in-fact,  or his substitute or substitutes,  may do or cause to be done
by virtue hereof.

                             April 4, 2000

                              /s/THOMAS J. WILSON, II
                              Thomas J. Wilson, II
                              President, Chief Operating Officer,
                             (Principal Executive Officer) and Director



<PAGE>




                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by these  presents  that  Michael J. Velotta  whose  signature
appears   below,   constitutes   and   appoints   Thomas  J.   Wilson,   II  his
attorney-in-fact,  with power of substitution in any and all capacities, to sign
any Form N-4  registration  statements and amendments  thereto for the Glenbrook
Life and Annuity Company  Separate Account A and to file the same, with exhibits
thereto and other  documents in connection  therewith,  with the  Securities and
Exchange   Commission,   hereby   ratifying   and   confirming   all  that  said
attorney-in-fact,  or his substitute or substitutes,  may do or cause to be done
by virtue hereof.

                             April 4, 2000

                              /s/MICHAEL J. VELOTTA
                               Michael J. Velotta
                               Vice President, Secretary,
                               General Counsel and Director


<PAGE>




                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by these  presents  that  Sarah R.  Donahue,  whose  signature
appears below,  constitutes  and appoints  Thomas J. Wilson,  II, and Michael J.
Velotta, and each of them, her  attorney-in-fact,  with power of substitution in
any and all  capacities,  to sign  any  Form  N-4  registration  statements  and
amendments thereto for the Glenbrook Life and Annuity Company Separate Account A
and to file the same,  with exhibits  thereto and other  documents in connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming  all  that  each  of  said  attorney-in-fact,  or his  substitute  or
substitutes, may do or cause to be done by virtue hereof.

                             April 4, 2000

                              /s/SARAH R. DONAHUE
                                 Sarah R. Donahue
                                 Assistant Vice President and Director


<PAGE>




                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by  these  presents  that  Brent H.  Hamann,  whose  signature
appears below,  constitutes  and appoints  Thomas J. Wilson,  II, and Michael J.
Velotta, and each of them, his  attorney-in-fact,  with power of substitution in
any and all  capacities,  to sign  any  Form  N-4  registration  statements  and
amendments thereto for the Glenbrook Life and Annuity Company Separate Account A
and to file the same,  with exhibits  thereto and other  documents in connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming  all  that  each  of  said  attorney-in-fact,  or his  substitute  or
substitutes, may do or cause to be done by virtue hereof.

                            April 4, 2000


                           /s/BRENT H. HAMANN
                              Brent H. Hamann
                              Director


<PAGE>



                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by these presents that John R. Hunter, whose signature appears
below,  constitutes and appoints  Thomas J. Wilson,  II, and Michael J. Velotta,
and each of them, his  attorney-in-fact,  with power of  substitution in any and
all  capacities,  to sign any Form N-4  registration  statements  and amendments
thereto for the Glenbrook  Life and Annuity  Company  Separate  Account A and to
file  the  same,  with  exhibits  thereto  and  other  documents  in  connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming  all  that  each  of  said  attorney-in-fact,  or his  substitute  or
substitutes, may do or cause to be done by virtue hereof.

                             April 4, 2000

                              /s/JOHN R. HUNTER
                                 John R. Hunter
                                  Vice President and Director


<PAGE>



                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by these presents that Timothy N. Vander Pas, whose  signature
appears below,  constitutes  and appoints  Thomas J. Wilson,  II, and Michael J.
Velotta, and each of them, his  attorney-in-fact,  with power of substitution in
any and all  capacities,  to sign  any  Form  N-4  registration  statements  and
amendments thereto for the Glenbrook Life and Annuity Company Separate Account A
and to file the same,  with exhibits  thereto and other  documents in connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming  all  that  each  of  said  attorney-in-fact,  or his  substitute  or
substitutes, may do or cause to be done by virtue hereof.

                             April 4, 2000

                              /s/TIMOTHY N. VANDER PAS
                                Timothy N. Vander Pas
                                Assistant Vice President and Director


<PAGE>



                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by these  presents that G. Craig  Whitehead,  whose  signature
appears below,  constitutes  and appoints  Thomas J. Wilson,  II, and Michael J.
Velotta, and each of them, his  attorney-in-fact,  with power of substitution in
any and all  capacities,  to sign  any  Form  N-4  registration  statements  and
amendments thereto for the Glenbrook Life and Annuity Company Separate Account A
and to file the same,  with exhibits  thereto and other  documents in connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming  all  that  each  of  said  attorney-in-fact,  or his  substitute  or
substitutes, may do or cause to be done by virtue hereof.

                             April 4, 2000

                              /s/G. CRAIG WHITEHEAD
                                 G. Craig Whitehead
                                 Assistant Vice President and Director


<PAGE>








                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by  these  presents  that  Kevin R.  Slawin,  whose  signature
appears below,  constitutes  and appoints  Thomas J. Wilson,  II, and Michael J.
Velotta, and each of them, his  attorney-in-fact,  with power of substitution in
any and all  capacities,  to sign  any  Form  N-4  registration  statements  and
amendments thereto for the Glenbrook Life and Annuity Company Separate Account A
and to file the same,  with exhibits  thereto and other  documents in connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming  all  that  each  of  said  attorney-in-fact,  or his  substitute  or
substitutes, may do or cause to be done by virtue hereof.

                             April 4, 2000

                              /s/KEVIN R. SLAWIN
                                Kevin R. Slawin
                                Vice President and Director


<PAGE>



                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\

                               SEPARATE ACCOUNT A

                                  (REGISTRANT)

                             AIM VARIABLE ANNUITY II

     Know all men by these  presents  that  Samuel  H.  Pilch,  whose  signature
appears below,  constitutes  and appoints  Thomas J. Wilson,  II, and Michael J.
Velotta, and each of them, his  attorney-in-fact,  with power of substitution in
any and all  capacities,  to sign  any  Form  N-4  registration  statements  and
amendments thereto for the Glenbrook Life and Annuity Company Separate Account A
and to file the same,  with exhibits  thereto and other  documents in connection
therewith,  with the Securities and Exchange  Commission,  hereby  ratifying and
confirming  all  that  each  of  said  attorney-in-fact,  or his  substitute  or
substitutes, may do or cause to be done by virtue hereof.

                             April 4, 2000

                              /s/SAMUEL H. PILCH
                                 Samuel H. Pilch
                                Controller (Principal Accounting Officer)



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