GLENBROOK LIFE & ANNUITY CO SEPARATE ACCOUNT A
N-4, 2000-04-07
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     As filed with the Securities and Exchange Commission on April 7, 2000.
                                                      File No. 333-________
                                                               811-07351
- ------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                    FORM N-4

           REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 [x]
                        Post Effective Amendment No. [ ]
                        Pre Effective Amendment No. [ ]

                                     and/or

       REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 [x]
                                Amendment No. 12

                        (Check appropriate box or boxes)

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

                       GLENBROOK LIFE AND ANNUITY COMPANY
                               (Name of Depositor)

                         ALLSTATE LIFE INSURANCE COMPANY
                                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 of all communications to:

Richard T. Choi, Esquire                    Anthony Poole, Esquire
Freedman, Levy, Kroll & Simonds             Glenbrook Life and Annuity Company
1050 Connecticut Avenue, N.W.               3100 Sanders Road, Suite J5B
Suite 825                                   Northbrook, IL 60062
Washington, D.C. 20036-5366

Date of proposed  public  offering:  As soon as practicable  after the effective
date of the Registration Statement.

The Registrant hereby amends this  registration  statement on such date or dates
as may be necessary to delay its effective date until the Registrant  shall file
a further amendment which specifically  states that this registration  statement
shall  thereafter  become  effective  in  accordance  with  Section  8(a) of the
Securities  Act of  1933  or  until  the  registration  statement  shall  become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.

Title of Securities  Being  Registered:  Units of interest in the Glenbrook Life
and Annuity Company Separate Account A.

<PAGE>



            AIM LIFETIME PLUS(SM) ENHANCED CHOICE(SM) VARIABLE ANNUITY

Glenbrook Life and Annuity Company               Prospectus dated _____________
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 Enhanced  Choice(SM)  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  19  investment   alternatives   ("investment
alternatives").  The  investment  alternatives  include 2 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 Demographics 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  January  3,  2000,  the  Portfolio  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 Portfolio.

Each  time you make a  purchase  payment,  we will  add to your  Contract  value
("Contract Value") a credit enhancement  ("Credit  Enhancement").  There are two
Credit   Enhancement   options  available  under  the  Contract.   Under  Credit
Enhancement  option 1, we will add to your Contract  Value a Credit  Enhancement
equal to 4% of your purchase  payments  ("Credit  Enhancement  Option 1"). Under
Credit  Enhancement  option  2, we  will  add to your  Contract  Value a  Credit
Enhancement equal to 2% of your purchase payments  ("Credit  Enhancement  Option
2"). In  addition,  under  Credit  Enhancement  Option 2, on every 5th  Contract
anniversary ("Contract  Anniversary") during the Accumulation Phase, we will add
to your Contract Value a Credit  Enhancement  equal to 2% of your Contract Value
as of such Contract Anniversary. Over time, the amount of the Credit Enhancement
may be more than offset by the fees associated with the Credit Enhancement.

We  ("Glenbrook")  have filed a Statement of Additional  Information,  dated __,
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 ____ 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.

IMPORTANT  NOTICES

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.

The Contracts may be distributed through  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

                               Important Terms.......................................................
Overview                       The Contract At A Glance..............................................
                               How the Contract Works................................................
                               Expense Table.........................................................
                               Financial Information.................................................

                               The Contract..........................................................
                               Purchases.............................................................
                               Contract Value........................................................
Contract Features              Investment Alternatives...............................................

                                          The Variable Sub-Accounts..................................
                                          The Fixed Account Options..................................
                                          Transfers..................................................

                               Expenses..............................................................
                               Access To Your Money..................................................
                               Income Payments.......................................................
                               Death Benefits........................................................


                               More Information:
                                          Glenbrook..................................................
                                          The Variable Account.......................................
                                          The Funds..................................................
Other Information                         The Contract...............................................
                                          Qualified Plans............................................
                                          Legal Matters..............................................
                                          Year 2000..................................................
                               Taxes.................................................................
                               Annual Reports and Other Documents....................................
                               Performance Information...............................................
                               Experts...............................................................
                               Statement of Additional Information Table of Contents.................
                               Appendix A............................................................A-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.............................................................
           Accumulation Unit..............................................................
           Accumulation Unit Value........................................................
           Annuitant......................................................................
           Automatic Additions Program....................................................
           Automatic Fund Rebalancing Program.............................................
           Beneficiary....................................................................
           Cancellation Period............................................................
           *Contract......................................................................
           Contract Anniversary...........................................................
           Contract Owner ("You").........................................................
           Contract Value.................................................................
           Contract Year..................................................................
           Credit Enhancement.............................................................
           Death Benefit Anniversary......................................................
           Dollar Cost Averaging Program..................................................
           Due Proof of Death.............................................................
           Enhanced Death Benefit Rider...................................................
           Fixed Account Options..........................................................
           Free Withdrawal Amount.........................................................
           Funds..........................................................................
           Glenbrook ("We")...............................................................
           Guarantee Period...............................................................
           Income Plan....................................................................
           Investment Alternatives........................................................
           Issue Date.....................................................................
           Market Value Adjustment........................................................
           Payout Phase...................................................................
           Payout Start Date..............................................................
           Qualified Contract.............................................................
           Right to Cancel................................................................
           SEC............................................................................
           Settlement Value...............................................................
           Systematic Withdrawal Program..................................................
           Treasury Rate..................................................................
           Valuation Date.................................................................
           Variable Account...............................................................
           Variable Sub-Account...........................................................
</TABLE>

           * If you purchase a group  Contract,  we will issue you a certificate
           that  represents your ownership and that summarizes the provisions of
           the group  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.


<PAGE>



THE CONTRACT AT A GLANCE

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

Flexible Payments

                    You can purchase a Contract  with as little as $10,000.  You
                    can add to your  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.

                    Each time you make a purchase payment,  if you choose Credit
                    Enhancement  Option  1, we will add to your  Contract  Value
                    ("Contract  Value") a Credit Enhancement equal to 4% of such
                    purchase payment (2% if you choose Credit Enhancement Option
                    2).

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  state law  permits,  to
                    reflect the investment  experience of any amounts  allocated
                    to the  Variable  Account.  If you  exercise  your  Right to
                    Cancel  the  Contract,  the amount we refund to you will not
                    include  any Credit  Enhancement.  See "Right to Cancel" for
                    details.

Expenses            You will bear the following expenses:

                    o    Total  Variable  Account  annual fees equal to 1.50% of
                         average  daily  net  assets  (1.70% if you  select  the
                         Enhanced Death Benefit Rider)

                    o    Annual contract maintenance charge of $35 (with certain
                         exceptions)

                    o    Withdrawal  charges  ranging  from 0% to 8% of purchase
                         payments 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 19 investment alternatives including:

                    o    2 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.

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.

Withdrawals       You may  withdraw  some or all of your  Contract  Value at any
                  time prior to the date income  payments begin 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.


<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 19 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 ____.  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

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.
</TABLE>


<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 fund prospectus.

    CONTRACT OWNER TRANSACTION EXPENSES

    Withdrawal Charge (as a percentage of purchase payments)*

Number of Complete Years Since We Received the Purchase
<TABLE>
<CAPTION>
<S>                                 <C>    <C>   <C>     <C>    <C>   <C>      <C>     <C>      <C>
Payment Being Withdrawn:            0      1     2       3      4      5       6       7         8

Applicable Charge:                  8%      8%    7%     7%     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 (15% of the initial  purchase  payment
    during the first  Contract  Year) without  incurring a withdrawal  charge or
    Market Value Adjustment. See "Free Withdrawal Amount" for details.

    ** 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.

    VARIABLE ACCOUNT ANNUAL EXPENSES (as a percentage of average daily net asset
value deducted from each Variable Sub-Account)

Mortality and Expense Risk Charge.........................................................1.40%*
Administrative Expense Charge.............................................................0.10%
                               Total Variable Account Annual Expenses.....................1.50%


</TABLE>
* If you select the Enhanced Death Benefit Rider, the mortality and expense risk
charge will be equal to 1.60% of your Contract's average daily net assets in the
Variable Account.


<PAGE>




FUND ANNUAL  EXPENSES  (After  Voluntary  Reductions and  Reimbursements)  (as a
percentage of Fund average daily net assets) (1)
<TABLE>
<CAPTION>
<S>                                                       <C>               <C>                    <C>

                                                          Management                              Total Annual
Fund                                                        Fees            Other Expenses        Fund Expenses

AIM V.I. Aggressive Growth Fund (2)
AIM V.I. Balanced Fund (2)
AIM V.I. Blue Chip Fund)
AIM V.I. Capital Appreciation Fund
AIM V.I. Capital Development Fund (2)
AIM V.I. Dent Demographics Fund
AIM V.I. Diversified Income Fund
AIM V.I. Global Growth and Income Fund
AIM V.I. Global Utilities Fund
AIM V.I. Government Securities Fund
AIM V.I. Growth Fund
AIM V.I. Growth and Income Fund
AIM V.I. High Yield Fund (2)
AIM V.I. International Equity Fund
AIM V.I. Money Market Fund
AIM V.I. Telecommunications and Technology Fund
AIM V.I. Value Fund
</TABLE>

(1) Figures shown in the table are for the year ended December 31, 1999,  except
for the AIM V.I. Blue Chip,  Dent  Demographics,  Global Growth and Income,  and
Telecommunications  and Technology Funds which commenced  operations on December
30, 1999, December 30, 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' current 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:

          AIM V.I. Aggressive Growth Fund
          AIM V.I. Balanced Fund
          AIM V.I. Capital Development Fund
          AIM V.I. High Yield Fund



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.


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
AIM V.I. Balanced
AIM V.I. Blue Chip
AIM V.I. Capital Appreciation
AIM V.I. Capital Development
AIM V.I. Dent Demographics
AIM V.I. Diversified Income
AIM V.I. Global Growth and Income
AIM V.I. Global Utilities
AIM V.I. Government Securities
AIM V.I. Growth
AIM V.I. Growth and Income
AIM V.I. High Yield
AIM V.I. International Equity
AIM V.I. Money Market
AIM V.I. Telecommunications and Technology
AIM V.I. Value

</TABLE>


<PAGE>



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
AIM V.I. Balanced
AIM V.I. Blue Chip
AIM V.I. Capital Appreciation
AIM V.I. Capital Development
AIM V.I. Dent Demographics
AIM V.I. Diversified Income
AIM V.I. Global Growth and Income
AIM V.I. Global Utilities
AIM V.I. Government Securities
AIM V.I. Growth
AIM V.I. Growth and Income
AIM V.I. High Yield
AIM V.I. International Equity
AIM V.I. Money Market
AIM V.I. Telecommunications and Technology
AIM V.I. Value
</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  Benefit  Rider with a mortality  and expense risk charge of 1.60% 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 $
50,000.


<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.

There are no Accumulation Unit Values to report because the Contracts were first
offered as of the date of this prospectus.

The  financial  statements of the Variable  Account and Glenbrook  appear in the
Statement of Additional Information.


<PAGE>



THE CONTRACT

CONTRACT OWNER

The AIM Lifetime Plus Enhanced  Choice  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 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.  The  maximum  age of  either  owner,  or  annuitant  if the  owner is a
non-natural person, cannot exceed age 80 at the time the contract is purchased.

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 __.

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 under an Income Plan. 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.


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 has 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 $10,000.  All subsequent purchase
payments must be $500 or more. You may make purchase  payments at any time prior
to the Payout Start Date. We may limit the amount of each purchase  payment that
we will  accept to a  minimum  of $500 and a maximum  of  $1,000,000.  . We also
reserve the right to reject any application.

AUTOMATIC ADDITIONS PROGRAM

You  may  make  subsequent  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.

CREDIT ENHANCEMENT

There are two Credit  Enhancement  options  available  under the  Contract.  You
select one of these options in your application.

If you  select  Credit  Enhancement  Option  1,  each  time you make a  purchase
payment,  we will add to your Contract Value a Credit Enhancement equal to 4% of
the purchase payment.

If you  select  Credit  Enhancement  Option  2, we will  apply  credits  to your
Contract Value as follows:

o    Each time you make a purchase payment, we will add to your Contract Value
     a Credit Enhancement equal to 2% of the purchase payment; and

o    On every 5th Contract  Anniversary  during the Accumulation  Phase, we will
     add to  your  Contract  Value  a  Credit  Enhancement  equal  to 2% of your
     Contract Value as of such Contract Anniversary.

We  will  allocate  any  Credit  Enhancements  to  the  investment  alternatives
according to the allocation instructions you have on file with us at the time we
receive your purchase  payment.  We will allocate each Credit  Enhancement among
the  investment  alternatives  in the  same  proportions  as  the  corresponding
purchase   payment   (except   that  any  portion  of  the  Credit   Enhancement
corresponding to the value in any Fixed Account Option will instead be allocated
to the Money  Market  Variable  Sub-account.  Thereafter  you may instruct us to
allocate  these  funds  to any  investment  alternative  you  choose.  We do not
consider  Credit  Enhancements  to be investments in the Contract for income tax
purposes.

We use a portion of the withdrawal  charge and mortality and expense risk charge
to help recover the cost of providing the Credit Enhancement under the Contract.
See  "Expenses."  Under certain  circumstances  (such as a period of poor market
performance) the cost associated with the Credit  Enhancement may exceed the sum
of the Credit  Enhancement  and any related  earnings.  You should consider this
possibility before purchasing the Contract.


<PAGE>



RIGHT TO CANCEL

You may cancel  the  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 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.

We are applying for regulatory  relief to enable us to recover the amount of any
Credit   Enhancement   applied  to  Contracts  that  are  cancelled  during  the
Cancellation  Period.  Until  we  receive  such  relief,  we will  return,  upon
cancellation,  the  amount  you would  have  received  had there  been no Credit
Enhancement.  That mens that  except in states  where we are  required by law to
return the amount of your purchase  payments,  the amount we return will reflect
any  investment  gain or loss  associated  with your Variable  Account  purchase
payments, will include any charges deducted that reduced contract value prior to
cancellation, and will reflect any investment gain on the Credit Enhancement but
will not include any investment  loss  associated  with the Credit  Enhancement.
After we receive the requested  regulatory  relief,  the amount we return to you
upon exercise of this Right to Cancel will not include any Credit Enhancement or
the amount of charges deducted prior to cancellation but will reflect, except in
states where we are required to return the amount of your purchase payments, any
investment gain or loss associated with your Variable Account purchase  payments
and with the Credit Enhancement.

CONTRACT VALUE

On the Issue Date, the Contract Value is equal to the initial  purchase  payment
plus the Credit Enhancement.  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
allocate 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. If you select Credit Enhancement Option 1, we also
would credit an additional 40 Accumulation Units of that Variable Sub-Account to
your Contract to reflect the 4% Credit  Enhancement on your purchase payment (20
additional  Units  under  Option 2, and  additional  Units  every  5th  Contract
Anniversary if applicable).  See "Credit Enhancement." Withdrawals and transfers
from a Variable Sub-Account would, of course,  reduce the number of Accumulation
Units of that Sub-Account allocated 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  described on
pages _____ 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 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 Demographics Fund                   Long-term growth of capital

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 level of current income and a secondary objective of growth of capital

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


</TABLE>

*A Fund's  investment  objective  may be changed by the Fund's Board of Trustees
without shareholders 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
may 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 2 Fixed Account  Options  including a dollar
cost averaging option 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 OPTION

You may establish a Dollar Cost Averaging Program, as described on page ____, by
allocating  purchase payments to the Fixed Account for 9 months ("9 Month Dollar
Cost Averaging  Option").  Your purchase payments and related Credit Enhancement
will earn interest at the current rates in effect for this Option 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 9 Month  Dollar Cost  Averaging
Option to other investment  alternatives in equal monthly installments beginning
within 30 days of allocation. At the end of the 9 month period, we will transfer
any remaining  amounts in the 9 Month Dollar Cost Averaging Account to the other
investment alternatives you designated. Transfers out of the 9 Month Dollar Cost
Averaging  Option do not count  towards the 12  transfers  you can make  without
paying a transfer fee.

You may not transfer  funds from other  investment  alternatives  to the 9 Month
Dollar Cost Averaging Option.

The 9 Month Dollar Cost Averaging Option may not be available in your state.

GUARANTEE PERIODS

Each purchase payment and related Credit  Enhancement 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 our Customer Support
Unit 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 plus Credit Enhancement..........$10,000
Guarantee Period..................................5 years
Annual Interest Rate............................... 4.50%
<PAGE>

<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

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
                                                                                                           $12,461.82

Total Interest Credited During Guarantee Period = $2,461.82 ($12,461.82 -$10,000)
</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  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    to satisfy IRS minimum distribution rules for the Contract,

o    as part of the Dollar Cost Averaging Program, or

o    when exercising the confinement, unemployment or terminal illness waivers.

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 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 A
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 9 Month Dollar
Cost Averaging  Option.  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, if you first send
us a  completed  authorization  form.  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

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.

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 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 billing and
collecting  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 1.40%
of the average daily net assets you have  invested in the Variable  Sub-Accounts
(1.60% if you select the  Enhanced  Death  Benefit  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  and the  cost of the  Credit  Enhancement.  If the
charges  under the Contract are not  sufficient,  then  Glenbrook  will bear the
loss.  We charge  additional  amounts for the enhanced  death  benefit  rider to
compensate us for the additional risk that we accept by providing the 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 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 8% of the purchase  payment(s)  you
withdraw.  The charge  declines  to 0% after 8  complete  years from the date we
received the purchase payment being withdrawn. A schedule showing how the charge
declines  appears on page 7, above.  During each Contract Year, you can withdraw
up to 15% of the Contract  Value as of the  beginning of that Contract Year (15%
of the initial  purchase  payment during the first Contract Year) without paying
the charge. Unused portions of this 15% "Free Withdrawal Amount" are not carried
forward  to  future  Contract  Years.  Credit  Enhancements  are not  considered
purchase  payments when determining the Free Withdrawal Amount in the first year
of the Contract. See "Contract" for details.

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.

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 and to help defray the cost of the Credit  Enhancement.  To the extent
that the  withdrawal  charge  does not  cover all  sales  commissions  and other
promotional or distribution expenses, or the cost of the Credit Enhancement,  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 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 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
do not need 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 8-9 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 ___.

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,  you must 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
          the variable  income  payments  supporting this plan 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 assess
applicable premium taxes at the Payout Start Date from the Contract Value.

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

You may apply all or part of your  Contract  Value to an Income  Plan.  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
investment rates available under this 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

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 an
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 eighth Contract  Anniversary  during the
Accumulation Phase. For example, the 8th, 16th, and 24th 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.

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 p.m.  Central  Time on a Valuation  Date,  we will
process the request as of the end of the following Valuation Date. A request for
payment of the death benefit 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,

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

     o    other documentation as we may accept in our sole discretion.



ENHANCED DEATH BENEFIT RIDER

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.  For  Contracts  with the Enhanced  Death  Benefit  Rider,  the death
benefit will be the greatest of (1) through (4) above, or (5) the enhanced death
benefit.  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." 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 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.

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  oldest  Annuitant's  85th
     birthday.

DEATH BENEFIT PAYMENTS

Death of Contract Owner.  Within 180 days of the date of your death, the new
Contract Owner may elect to:

1)   receive the death benefit in a lump sum, or

2)   apply an amount equal to the death benefit to one of the  available  Income
     Plans described above. The Payout Start Date must be within one year of the
     date of your death. Income payments must be:

     (a)  over the life of the new Contract Owner,

     (b)  for a  guaranteed  number  of  payments  from 5 to 30 years but not to
          exceed the life expectancy of the new Contract Owner, or

     (c)  over  the life of new  Contract  Owner  with a  guaranteed  number  of
          payments  from 5 to 30 years but not to exceed the life  expectancy of
          the new Contract Owner.


Otherwise,  the new  Contract  Owner will  receive  the  Settlement  Value.  The
"Settlement Value" is the Contract Value, less any applicable withdrawal charge,
market value adjustment,  taxes, and contract  maintenance charge. The new Owner
may make a single  withdrawal of any amount within the year of the date of death
without incurring a withdrawal charge. We will calculate the Settlement Value as
of the end of the Valuation Date coinciding with the requested distribution date
for payment or on the mandatory  distribution  date of 5 years after the date of
your death,  whichever is earlier.  If we receive a request after 3 p.m. Central
Time on a  Valuation  Date,  we will  process  the  request as of the end of the
following  Valuation  Date. 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.

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 next  Valuation  Date if we  receive  due proof of death
after 3 p.m. Central Time). Prior to the Payout Start Date, the death benefit of
the continued Contract will be the greater of:

     (a)  the sum of all purchase  payments less any withdrawals,  as defined in
          the death benefit provision,

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

     (c)  the Contract Value on the Death Benefit  anniversary prior to the date
          we determine  the Death  Benefit,  increased by any purchase  payments
          made since that Death Benefit  Anniversary and reduced by a withdrawal
          adjustment, as defined under Death Benefit Amount.

If the new Contract Owner is a corporation,  trust, or other non-natural person,
then the new Contract Owner may elect, within 180 days of your death, to receive
the death benefit in a lump sum or may elect to receive the Settlement  Value in
a lump sum within 5 years of death. We are currently  waiving the 180 day limit,
but we reserve the right to enforce  the  limitation  in the future.  If any new
Contract owner is a non-natural person, we will consider all new Contract owners
to be non-natural persons for purposes of the above.

Death of Annuitant.  If the  Annuitant  who is not also the Contract  Owner dies
prior to the  Payout  Start  Date,  the  Contract  Owner  must  elect one of the
applicable options described below.

If the  Contract  Owner is a natural  person,  the  Contract  Owner may elect to
continue  the Contract as if the death had not  occurred,  or, if we receive Due
Proof  of  Death  within  180 days of the  date of the  Annuitant's  death,  the
Contract Owner may choose to:

     1)   receive the death benefit in a lump sum; or

     2)   apply the death  benefit to an Income  Plan that must  begin  within 1
          year of the date of death.

If the  Contract  Owner  elects to continue  the  Contract or to apply the death
benefit to an Income  Plan,  the new  Annuitant  will be the  youngest  Contract
Owner, unless the Contract Owner names a different Annuitant.

If the Contract Owner is a non-natural  person,  the non-natural  Contract Owner
may elect,  within 180 days of the  Annuitant's  date of death,  to receive  the
death benefit in a lump sum or may elect to receive the Settlement Value payable
in a lump  sum  within  5  years  of  the  Annuitant's  date  of  death.  If the
non-natural  Contract Owner does not make one of the above described  elections,
the Settlement  Value must be withdrawn by the non-natural  Contract Owner on or
before the mandatory  distribution date 5 years after the Annuitant's  death. We
are currently waiving the 180 day limit, but we reserve the right to enforce the
limitation in the future.


<PAGE>



MORE INFORMATION

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.

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"),  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.

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  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.

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


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.

TAXES

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 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).

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.

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, 1998, 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,

     o    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 the 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 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 Credit  Enhancement  and 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>




                                  [back cover]


<PAGE>

                                   APPENDIX A

                             MARKET VALUE ADJUSTMENT

The Market Value Adjustment is based on the following:

        I = the Treasury Rate for a maturity equal to the  applicable  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; and

        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.  If a note for a maturity of length
        N is not available, a weighted average will be used.

        "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
<TABLE>
<CAPTION>
<S>                                         <C>                            <C>
Purchase Payment Plus Credit Enhancement:   $10,000 allocated to a Guarantee Period
Guarantee Period:              5 years
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.

                   EXAMPLE 1: (Assumes declining interest rates)

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:                        .15X $ 11,411.66= $ 1,711.75

Step 3.    Calculate the Withdrawal Charge:                             .07 X ($10,000.00 - $1,711.75) = $580.18

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 - $ 1,711.75) = $52.38

Step 5.    Calculate the amount received by Contract owner as
result of full withdrawal at the end of Contract Year 3:                     $11,411.66 - $580.18 + $52.38= $10,883.86

<PAGE>

                   EXAMPLE 2: (Assumes rising interest rates)

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

Step 2.   Calculate the Free Withdrawal Amount:                       .15 X ($11,411.66) = $1,711.75

Step 3.   Calculate the Withdrawal Charge:                            .07 X ($10,000.00 - $1,711.75) = $580.18

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 - $1,711.75) = - $52.38

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 - $580.18 - $52.38 = $10,779.10


</TABLE>

                       STATEMENT OF ADDITIONAL INFORMATION

                                TABLE OF CONTENTS

  Description

Additions, Deletions or Substitutions of Investments.
The Contract.
             Purchases.
             Tax-free Exchanges (1035 Exchanges, Rollovers and Transfers)
Performance Information
Calculation of Accumulation Unit Values
Calculation of Variable Income Payments
General Matters

             Incontestability
             Settlements

             Safekeeping of the Variable Account's Assets
             Premium Taxes
             Tax Reserves

Federal Tax Matters
Qualified Plans
Experts
Financial Statements

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.
<PAGE>

               THE AIM LIFETIME PLUS(SM) ENHANCED CHOICE VARIABLE ANNUITY

Glenbrook Life and Annuity Company          Statement of Additional Information
Glenbrook Life and Annuity Company               dated    _____, 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) Enhanced Choice Variable Annuity.  This
Statement of Additional Information is not a prospectus. You should read it with
the prospectus, dated _____, 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.

                                TABLE OF CONTENTS

               Description

               Additions, Deletions or Substitutions of Investments
               The Contract
                   Purchases
                  Tax-free Exchanges (1035 Exchanges, Rollovers and Transfers)
               Performance Information
               Calculation of Accumulation Unit Values
               Calculation of Variable Income Payments
               General Matters
                  Incontestability
                  Settlements
                  Safekeeping of the Variable Account's Assets
                  Premium Taxes
                  Tax Reserves
               Federal Tax Matters
               Qualified 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,  ALFS,  Inc.,  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  (plus
          applicable Credit Enhancement  thereon) 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) an assumed average Contract
size of $50,000.  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 Contract was first  offered for
sale as of the date of this  Statement of Additional  Information.  Accordingly,
the  performance  shown  reflects  the  historical  performance  of the Variable
Sub-Accounts,  adjusted to reflect the current  charges  under the Contract that
would  have  applied  had  it  been  available  during  the  periods  shown.  No
standardized total returns are shown for the Money Market Variable  Sub-Account.
In addition, no standardized total returns are shown for the AIM V.I. Blue Chip,
AIM V.I. Dent  Demographics,  AIM V.I.  Global  Growth and Income,  and AIM V.I.
Telecommunications  and  Technology  Variable   Sub-Accounts,   which  commenced
operations on January 3, 2000.




<PAGE>




<TABLE>
<CAPTION>

(Without the Enhanced  Death Benefit Option or the Enhanced Death)

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

<S>                                        <C>             <C>            <C>
AIM V.I. Aggressive Growth                    N/A            N/A                -11.12%
AIM V.I. Balanced                             N/A            N/A                  8.29%
AIM V.I. Blue Chip                            N/A            N/A                      %
AIM V.I. Capital Appreciation                 10.92%         N/A                 12.47%
AIM V.I. Capital Development                  N/A            N/A                -19.80%
AIM V.I. Dent Demographics                    N/A            N/A                      %
AIM V.I. Diversified Income                    2.39%         N/A                  4.72%
AIM V.I. Global Growth and Income             N/A            N/A                      %
AIM V.I. Global Utilities                      8.31%         N/A                 13.78%
AIM V.I. Government Securities                 9.50%         N/A                  4.13%
AIM V.I. Growth                               24.71%         N/A                 21.44%
AIM V.I. Growth and Income                    18.72%         N/A                 19.94%
AIM V.I. High Yield                           N/A            N/A                -20.04%
AIM V.I. International Equity                  7.38%         N/A                 10.89%
AIM V.I. Telecommunications and Technology    N/A            N/A                      %
AIM V.I. Value                                23.11%         N/A                 18.64%
</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   Demographics,   Global   Growth  and   Income,   and
Telecommunications  and Technology Variable Sub-Accounts commenced operations on
January 3, 2000.




<PAGE>


<TABLE>
<CAPTION>

(With the Enhanced Death Benefit Option)

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

<S>                                        <C>          <C>               <C>
AIM V.I. Aggressive Growth                    N/A            N/A               -11.30%
AIM V.I. Balanced                             N/A            N/A                 8.08%
AIM V.I. Blue Chip                            N/A            N/A                     %
AIM V.I. Capital Appreciation                 10.70%         N/A                12.25%
AIM V.I. Capital Development                  N/A            N/A               -19.96%
AIM V.I. Dent Demographics                    N/A            N/A                     %
AIM V.I. Diversified Income                    2.19%         N/A                 4.51%
AIM V.I. Global Growth and Income             N/A            N/A                     %
AIM V.I. Global Utilities                      8.09%         N/A                13.56%
AIM V.I. Government Securities                 9.29%         N/A                 3.93%
AIM V.I. Growth                               24.46%         N/A                21.20%
AIM V.I. Growth and Income                    18.49%         N/A                19.70%
AIM V.I. High Yield                           N/A            N/A               -20.20%
AIM V.I. International Equity                  7.16%         N/A                10.66%
AIM V.I. Telecommunications and Technology    N/A            N/A                     %
AIM V.I. Value                                22.87%         N/A                18.40%
</TABLE>

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






<PAGE>



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. Non-standardized total returns do not take into account the amount of any
Credit Enhancement.

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 = (1 + r)1/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 that rather than
using a hypothetical  $1,000 investment and the ending redeemable 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 returns 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 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 the date of this  Statement  of  Additional  Information.
Accordingly,  the performance  shown reflects the historical  performance of the
Variable Sub-Accounts,  adjusted to reflect the current asset-based charges (but
not the withdrawal  charge,  contract  maintenance  charge,  or taxes) under the
Contract that would have applied had it been available  during the period shown.
No  standardized   total  returns  are  shown  for  the  Money  Market  Variable
Sub-Account.  In addition,  no standardized  total returns are shown for the AIM
V.I. Blue Chip, AIM V.I. Dent  Demographics,  AIM V.I. Global Growth and Income,
and AIM V.I.  Telecommunications  and Technology  Variable  Sub-Accounts,  which
commenced operations on January 3, 2000.

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

<TABLE>
<CAPTION>

(Without the Enhanced  Death Benefit Option)

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

<S>                                      <C>           <C>              <C>
AIM V.I. Aggressive Growth                 N/A            N/A                 -2.49%
AIM V.I. Balanced                          N/A            N/A                 18.80%
AIM V.I. Blue Chip                         N/A            N/A                      %
AIM V.I. Capital Appreciation              18.00%         N/A                 14.47%
AIM V.I. Capital Development               N/A            N/A                -12.00%
AIM V.I. Dent Demographics                 N/A            N/A                      %
AIM V.I. Diversified Income                2.45%          N/A                  6.59%
AIM V.I. Global Growth and Income          N/A            N/A                      %
AIM V.I. Global Utilities                  15.22%         N/A                 15.80%
AIM V.I. Government Securities             9.56%          N/A                  6.00%
AIM V.I. Growth                            32.65%         N/A                 23.59%
AIM V.I. Growth and Income                 26.29%         N/A                 22.07%
AIM V.I. High Yield                        N/A            N/A                -12.27%
AIM V.I. International Equity              14.23%         N/A                 12.86%
AIM V.I. Telecommunications and Technology N/A            N/A                      %
AIM V.I. Value                             30.96%         N/A                 20.74%
</TABLE>

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

<TABLE>
<CAPTION>

(With the Enhanced Death Benefit Option)

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

<S>                                      <C>             <C>             <C>
AIM V.I. Aggressive Growth                  N/A             N/A                -2.68%
AIM V.I. Balanced                           N/A             N/A                18.56%
AIM V.I. Blue Chip                          N/A             N/A                     %
AIM V.I. Capital Appreciation               17.76%          N/A                14.24%
AIM V.I. Capital Development                N/A             N/A               -12.18%
AIM V.I. Dent Demographics                  N/A             N/A                     %
AIM V.I. Diversified Income                 2.25%           N/A                 6.38%
AIM V.I. Global Growth and Income           N/A             N/A                     %
AIM V.I. Global Utilities                   14.99%          N/A                15.57%
AIM V.I. Government Securities               9.34%          N/A                 5.78%
AIM V.I. Growth                             32.39%          N/A                23.35%
AIM V.I. Growth and Income                  26.04%          N/A                21.82%
AIM V.I. High Yield                         N/A             N/A               -12.45%
AIM V.I. International Equity               14.00%          N/A                12.63%
AIM V.I. Telecommunications and Technology  N/A             N/A                     %
AIM V.I. Value                              30.70%          N/A                20.50%
</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.

<TABLE>
<CAPTION>

(Without the Enhanced  Death Benefit Option)

                                                                           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                  N/A             N/A                -11.12%
AIM V.I. Balanced                           N/A             N/A                  8.29%
AIM V.I. Blue Chip**                        N/A             N/A                      %***
AIM V.I. Capital Appreciation               11.32%          14.93%              16.71%
AIM V.I. Capital Development                N/A             N/A                -19.80%
AIM V.I. Dent Demographics**                N/A             N/A                      %***
AIM V.I. Diversified Income                  2.39%           5.01%               5.51%
AIM V.I. Global Growth and Income**         N/A             N/A                      %
AIM V.I. Global Utilities                    8.31%          N/A                 13.07%
AIM V.I. Government Securities               9.50%           4.29%               4.43%
AIM V.I. Growth                             24.71%          19.05%              18.78%
AIM V.I. Growth and Income                  18.72%          N/A                 19.99%
AIM V.I. High Yield                         N/A             N/A                -20.04%
AIM V.I. International Equity                7.38%           9.13%              11.40%
AIM V.I. Telecommunications and Technology**N/A             N/A                      %
AIM V.I. Value                              23.11%          19.31%              19.79%
</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 30, 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 30, 1999
          AIM V.I. Diversified Income Fund                   May 5, 1993
          AIM V.I. Global Growth and Income                  October 15, 1999
          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 and 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         October 15, 1999
          AIM V.I. Value Fund                                May 5, 1993

**The  adjusted  historical  total returns for these Variable  Sub-Accounts  are
shown for the periods ended _________, 2000.

***Adjusted  historical  total  returns  for the AIM  V.I.  Blue  Chip  and Dent
Demographics Variable Sub-Accounts are not annualized.

<TABLE>
<CAPTION>

(With the Enhanced Death Benefit Option)

                                                                            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                    N/A                 N/A              -11.30%
AIM V.I. Balanced                             N/A                 N/A                8.08%
AIM V.I. Blue Chip**                          N/A                 N/A                    %***
AIM V.I. Capital Appreciation              11.10%              14.70%               16.48%
AIM V.I. Capital Development                  N/A                 N/A              -19.96%
AIM V.I. Dent Demographics**                  N/A                 N/A                    %***
AIM V.I. Diversified Income                 2.19%               4.80%                5.30%
AIM V.I. Global Growth and Income**           N/A                 N/A                    %
AIM V.I. Global Utilities                   8.09%                 N/A               12.84%
AIM V.I. Government Securities              9.29%               4.08%                4.22%
AIM V.I. Growth                            24.46%              18.81%               18.54%
AIM V.I. Growth and Income                 18.49%                 N/A               19.75%
AIM V.I. High Yield                           N/A                 N/A              -20.20%
AIM V.I. International Equity               7.16%               8.91%               11.18%
AIM V.I. Telecommunications and Technology    N/A                 N/A                    %
AIM V.I. Value                             22.87%              19.07%               19.55%
</TABLE>

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

**The  adjusted  historical  total returns for these Variable  Sub-Accounts  are
shown for the periods ended _________, 2000.

***Adjusted  historical  total  returns  for the AIM  V.I.  Blue  Chip  and Dent
Demographics Variable Sub-Accounts are not annualized.


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 the number of days in the current calendar year 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

The Contract must 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  non-elective   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.



<PAGE>



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 the related financial  statement schedule included
in this statement of additional information have been audited by ______________,
independent  auditors,  as stated in their  reports  appearing  herein,  and are
included in reliance upon the reports of such firm given upon their authority as
experts in accounting and auditing.




<PAGE>



FINANCIAL STATEMENTS

The  financial  statements  of  the  Variable  Account  and  Glenbrook  and  the
accompanying  Independent  Auditors' Report appear on 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
Contracts.

The financial  statements for the Variable Account included in this Statement of
Additional  Information  reflect assets  attributable to other variable  annuity
contracts offered by Glenbrook through the Variable Account.

[To be filed by amendment.]




<PAGE>
                                         PART C
                                    OTHER INFORMATION


24.  FINANCIAL STATEMENTS AND EXHIBITS

 (a)  FINANCIAL STATEMENTS

 To be filed by amendment.

(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 (Previously filed in  Post-Effective  Amendment No. 1 to
     this Registration Statement (File No. 033-62203) dated April 22, 1996.)

(2)  Not Applicable

(3)  Form of Underwriting Agreement (Previously filed in Pre-Effective Amendment
     No. 1, to this  Registration  Statement (File No. 033-62203) dated November
     22, 1996.)

(4)  Form of the AIM Lifetime Plus Enhanced  Choice  Variable  Annuity  Contract
     filed   herewith.

(5)  Form of the AIM Lifetime Plus Enhanced  Choice  Variable  Annuity  Contract
     Application filed herewith.

(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   (Previously  filed  in  Pre-Effective
     Amendment No. 1 to this  Registration  Statement (File No. 033-62203) dated
     November 22, 1995.)

(8)  Participation Agreement with AIM Variable Insurance Funds (Previously filed
     in Post- Effective  Amendment No. 1 this  Registration  Statement (File No.
     033-62203) dated April 22, 1996.)

(9)  Opinion and Consent of Michael J. Velotta,  Vice  President,  Secretary and
     General Counsel of Glenbrook Life and Annuity Company*

(10)(a) Independent Auditors' Consent*

(10)(b) Consent of Freedman, Levy, Kroll & Simonds*

(11) Not applicable

(12) Not applicable

(13) Performance Data Calculations*

(14) Not applicable

(99) Powers of Attorney for Thomas J. Wilson,  II,  Michael J. Velotta,  John R.
     Hunter,  Kevin R. Slawin,  Samuel H. Pilch,  Sarah R.  Donahue,  Timothy N.
     Vander Pas, Brent H. Hamann, G. Craig Whitehead filed herewith.

*To be filed by Pre-effective Amendment

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
Marla G. Friedman                   Vice President
Karen C. Gardner                    Vice President
Samuel H. Pilch                     Controller
Casey J. Sylla                      Chief Investment Officer
James P. Zils                       Treasurer
A. Sales Miller                     Assistant Vice President, Operations
Barry S. Paul                       Assistant Vice President and Assistant Treasurer
C. Nelson Strom                     Assistant Vice President and Corporate Actuary
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
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

Information in response to this item is incorporated  herein by reference to the
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  the  date  hereof,  the  offering  of the  contracts  described  in  this
registration statement had not commenced.

28.  INDEMNIFICATION

The by-laws of both Glenbrook Life and Annuity Company  (Depositor) and Allstate
Life Financial Services, 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 Insurance Company Separate Account A
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

(b) The directors and principal officers of the principal underwriter are:

<TABLE>
<CAPTION>

Name and Principal Business                 Positions and Offices of Each
Address of Each such Person                 Such Person with Underwriter

<S>                                 <C>
John R. Hunter                      Director, President and Chief Executive Officer
Kevin R. Slawin                     Director
Michael J. Velotta                  Director and Secretary
Thomas J. Wilson, II                Director
Janet M. Albers                     Vice President and Controller
Brent H. Hamann                     Vice President
Andrea J. Schur                     Vice President
Michael J. Velotta                  Secretary
Terry Young                         General Counsel and Assistant Secretary
James P. Zils                       Treasurer
Lisa A. Burnell                     Assistant Vice President and Compliance Officer
Joanne M. Derrig                    Assistant Secretary and Assistant General Counsel
Emma M. Kalaidjian                    Assistant Secretary
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  Distributor,  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.




<PAGE>



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  Individual  and Group  Flexible  Premium  Deferred  Variable  Annuity
Contracts hereby  registered by 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.






<PAGE>

                                   SIGNATURES


As  required by the  Securities  Act of 1933 and the  Investment  Company Act of
1940, the Registrant,  Glenbook Life and Annuity Company Separate Account A, has
caused this Amendment to the  Registration  Statement to be signed on its behalf
by the undersigned,  and its seal to be hereunto affixed, all in the Township of
Northfield, State of Illinois on the 7th day of April, 2000.


                       GLENBROOK LIFE AND ANNUITY COMPANY
                               SEPARATE ACCOUNT A
                                  (REGISTRANT)

                     BY: GLENBROOK LIFE AND ANNUITY COMPANY
                                   (DEPOSITOR)


(SEAL)


                          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 Glenbrook
Life and Annuity Company on the 7th day of April 2000.


*/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. VanderPas


*/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




<PAGE>


EXHIBIT INDEX

EX-4       Form of Application

EX-5       Form of Contract

EX-99      Powers of Attorney for Thomas J. Wilson, II, Michael J. Velotta,
           John R. Hunter, Kevin R. Slawin, Samuel H. Pilch, Sarah R. Donahue,
           Timothy N. Vander Pas, Brent H. Hamann, G. Craig Whitehead











AIM LIFETIME PLUS ENHANCED CHOICE(SM) VARIABLE  ANNUITY Issued by:
Glenbrook Life and Annuity  Company - PO Box 94039 -  Palatine,  IL  60094-4039
Telephone #800-776-6978  FAX  847-402-9543 Mail  Check  (payable  to) and
application  to:
Glenbrook  Life and  Annuity  Company PO  Box 94039 - Palatine, IL 60094-4039
Send overnight  mail to:  Glenbrook  Life and Annuity  Company - 3100 Sanders
Road, Suite J4B - Northbrook, IL 60062-7154
- -------------------------------------------------------------------------------
1.  Owner(s)   Name______________________   __  M  __  F  Birthdate  ___/____/__
Address________________________________________________________________     Soc.
Sec.
No._____________________ Phone No._______________________
Name_____________________________ __M __ F Birthdate____/_____/___
Address__________________________________________________________Soc. Sec. No.
_____________________Phone No. ______________________-
- -------------------------------------------------------------------------------
2. Annuitant Name_______________________ __M __ F Birthdate ___/____/__(Leave
Blank if Address_____________________________________________________Same as
Owner) Soc. Sec. No.________________ Relationship to Owner__________-
- -------------------------------------------------------------------------------
3. Beneficiary(ies) Name___________________ Relationship to Owner________
Percentage_________ Name___________________ Relationship to Owner________
Percentage_________-
- -------------------------------------------------------------------------------
4.Purchase Payment/Plan Options Choose One of the Following: Initial Purchase
Payment $___________
Choose one credit option:  __ 4% initial credit; or __ 2% initial credit option
with 2% every fifth year
Choose one of the following:
__ Base Contract, No Rider; or __ Enhanced Death Benefit
Rider
- -------------------------------------------------------------------------------
Please allocate the above amount in $ or % (circle one)
to the Investment Alternatives specified below: (if available)
AIM V.I. Funds*                                   Fixed Account (if available)
Aggressive Growth        Governmnet Securities    1-Year Guarantee Period
Balanced                 Growth                   3-Year Guarantee Period
Blue Chip                Growth & Income          5-Year Guarantee Period
Capital Appreciation     High Yield               7-Year Guarantee Period
Capital Development      International Equity     10-Year Guarantee Period
Dent Demographic Trends  Monty Market             DCA Options
Diversified Income       Telecommunications       (Please allocate DEC below.)
Global Growth & Income   Value
Global Utilities                                  Total                   100%
- -------------------------------------------------------------------------------
Dollar-Cost Averaging (DCA) Option
9-month DCA Option. Money will be transferred in equal monthly installments for
____ (1-9) months.

Please allocate the DCA Option amount to the Investment Alternatives specified
below:

AIM V.I. Funds*
Aggressive Growth   %       Diversified Income  %         High Yield  %
Balanced  %                 Global Growth & Income  %     International Equity %
Blue Chip  %                Global Utilities   %          Money Market  %
Capital Appreciation  %     Government Securities  %      Telecommunications  %
Capital Development  %      Growth  %                     Value  %
Dent Demographic Trends  %  Growth & Income  %            Total            100%

*Certain AIM V.I. Funds may not be available at time of purchase.
- ------------------------------------------------------------------------------
5. Replacement Information Will this annuity replace or change any existing
annuity or life insurance? ____Yes _____No(If Yes, complete the following):
Company_______________ Policy No. ______________Cost Basis Amount_____________
Policy Date _____________
- --------------------------------------------------------------------------------
6. Tax Qualified Plan ______Yes _______No (If yes, complete the following).
____Custodial IRA _____Roth IRA ________IRA Rollover____IRA/Year of
Contribution _____IRA Transfer ________Other
- --------------------------------------------------------------------------------
GLMR147

<PAGE>

7.  Signature(s)  I  understand  that if  Glenbrook  Life  and  Annuity  Company
("Glenbrook") declines this application, Glenbrook will have no liability except
to return the purchase  payments.  I understand that any  distribution  from the
Fixed Account prior to the end of a Guarantee  Period may be subject to a Market
Value  Adjustment  which may be negative or positive.  I understand that annuity
values and income payments based on the investment  experience of the Investment
Alternatives  underlying theseparate account are variable and are not guaranteed
as to dollar  amount.  I have received the current  prospectus for this variable
annuity.

Signed  at____________(city)_______________(state) Date ______/__________/______
Owner(s)_____________________________________________________________________
Fax   Number   ______________________   E-mail   Address   _____________________
- -------------------------------------------------------------------------------
8. AGENT USE ONLY Will the annuity  applied  for replace or change any  existing
annuity or life  insurance?  _________Yes  ______________No  Agent Name  (please
print)____________________Phone     No.    _______________    Agent    Signature
___________________________   Soc.   Sec.   No.   ________________   Fax  Number
____________________________  E-mail  Address_______________Agent  GA No. (Joint
Business)________________  FL License No. _______________ Client's B/D Acct. No.
_______________________  B/D  Name  __________________   Designation:   _______A
__________B  Note:  Please be advised  that a firm  designation  may override an
individual  agentdesignation.  If no  designation  is  given,  "A"  will  be the
designation.
- -------------------------------------------------------------------------------
The following states require insurance applicants to acknowledge a fraud warning
statement.  Please  refer to the  fraud  warning  statement  for  your  state as
indicated                                                                 below.
- -------------------------------------------------------------------------------
1. For AR, KY, ME, NM, OH and PA: Any person who  knowingly  and with  intent to
defraud any insurance company or other person files an application for insurance
or statement of claim containing any materially  false  information or conceals,
for the purpose of misleading,  information concerning any fact material thereto
commits a fraudulent insurance act, which is a crime and subjects such person to
criminal and civil penaltie.
Applicant's Signature ________________________ Date ______________

- -------------------------------------------------------------------------------
2. For FL: Any person  who  knowingly  and with  intent to injure,  defraud,  or
deceive any insurer files a statement of claim or an application  containing any
false, incomplete,  or misleading information is guilty of a felony of the third
degree.
Applicant's Signature ________________________ Date ______________

- -------------------------------------------------------------------------------
3. For NJ: Any person who includes  any false or  misleading  information  on an
applicationfor  an insurance  policy is guilty of a felony of the third  degree.
Applicant's Signature ________________________ Date ______________

- -------------------------------------------------------------------------------
4. For CO: It is unlawful to knowingly provide false, incomplete,  or misleading
facts or  information  to an insurance  company for the purpose of defrauding or
attempting to defraud the company.  Penalties may include  imprisonment,  fines,
denial of insurance  and civil  damages.  Any  insurance  company or agent of an
insurance company who knowingly provides false, incomplete,  or misleading facts
or  information  to a policy holder or claimant for the purpose of defrauding or
attempting  to defraud the policy holder or claimant with regard to a settlement
or award  payable  from  insurance  proceeds  shall be reported to the  Colorado
Division  of  Insurance   within  the   Department   of   Regulatory   Agencies.
Applicant's Signature ________________________ Date ______________

- --------------------------------------------------------------------------------
5. For LA: Any person who  knowingly  presents a false or  fraudulent  claim for
payment of a loss or benefit  or  knowingly  presents  false  information  in an
application  for  insurance is guilty of a crime and may be subject to fines and
confinement  in  prison.  Applicant's  Signature  ________________________  Date
______________

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

6. For AZ: Upon your  written  request we will  provide you within a  reasonable
period of time,  reasonable,  factual  information  regarding  the  benefits and
provisions of the annuity contract for which you are applying. If for any reason
you are not satisfied with the contract,  you may return the contract within ten
days after you receive it. If the  contract  you are  applying for is a variable
annuity,  you will  receive  an  amount  equal to the sum of (i) the  difference
between the premiums  paid and the amounts  allocated  to any account  under the
contract  and (ii) the  Contract  Value on the  date the  returned  contract  is
received    by   our    company    or   our   agent.    Applicant's    Signature
________________________ Date ______________

- -------------------------------------------------------------------------------
7. For D.C.: Warning: It is a crime to provide false or misleading information
to an insurer for the purpose of defrauding the insurer or any other person.
Penalties include imprisonment and/or fines.  In addition, an insurer may deny
insurance benefits if false information materially related to a claim was
provided by the applicant.
Applicant's Signature ________________________ Date ______________


GLMR147
<PAGE>
AIM LIFETIME PLUS ENHANCED CHOICE(SM) VARIABLE  ANNUITY Issued by:
Glenbrook Life and Annuity  Company - PO Box 94039 -  Palatine,  IL  60094-4039
Telephone #800-776-6978  FAX  847-402-9543 Mail  Check  (payable  to) and
application  to:
Glenbrook  Life and  Annuity  Company PO  Box 94039 - Palatine, IL 60094-4039
Send overnight  mail to:  Glenbrook  Life and Annuity  Company - 3100 Sanders
Road, Suite J4B - Northbrook, IL 60062-7154
- -------------------------------------------------------------------------------
1.  Owner(s)   Name______________________   __  M  __  F  Birthdate  ___/____/__
Address________________________________________________________________     Soc.
Sec.
No._____________________ Phone No._______________________
Name_____________________________ __M __ F Birthdate____/_____/___
Address__________________________________________________________Soc. Sec. No.
_____________________Phone No. ______________________-
- -------------------------------------------------------------------------------
2. Annuitant Name_______________________ __M __ F Birthdate ___/____/__(Leave
Blank if Address_____________________________________________________Same as
Owner) Soc. Sec. No.________________ Relationship to Owner__________-
- -------------------------------------------------------------------------------
3. Beneficiary(ies) Name___________________ Relationship to Owner________
Percentage_________ Name___________________ Relationship to Owner________
Percentage_________-
- -------------------------------------------------------------------------------
4.Purchase Payment/Plan Options Choose One of the Following: Initial Purchase
Payment $___________
Choose one credit option:  __ 4% initial credit; or __ 2% initial credit option
with 2% every fifth year
Choose one of the following:
__ Base Contract, No Rider; or __ Enhanced Death Benefit
Rider
- -------------------------------------------------------------------------------
Please allocate the above amount in $ or % (circle one)
to the Investment Alternatives specified below: (if available)
AIM V.I. Funds*                                   Fixed Account (if available)
Aggressive Growth        Governmnet Securities    1-Year Guarantee Period
Balanced                 Growth                   3-Year Guarantee Period
Blue Chip                Growth & Income          5-Year Guarantee Period
Capital Appreciation     High Yield               7-Year Guarantee Period
Capital Development      International Equity     10-Year Guarantee Period
Dent Demographic Trends  Monty Market             DCA Options
Diversified Income       Telecommunications       (Please allocate DEC below.)
Global Growth & Income   Value
Global Utilities                                  Total                   100%
- -------------------------------------------------------------------------------

5. Replacement Information Will this annuity replace or change any existing
annuity or life insurance? ____Yes _____No(If Yes, complete the following):
Company_______________ Policy No. ______________Cost Basis Amount_____________
Policy Date _____________
- --------------------------------------------------------------------------------
6. Tax Qualified Plan ______Yes _______No (If yes, complete the following).
____Custodial IRA _____Roth IRA ________IRA Rollover____IRA/Year of
Contribution _____IRA Transfer ________Other
- --------------------------------------------------------------------------------
GLMR148

<PAGE>

7.  Signature(s)  I  understand  that if  Glenbrook  Life  and  Annuity  Company
("Glenbrook") declines this application, Glenbrook will have no liability except
to return the purchase  payments.  I understand that any  distribution  from the
Fixed Account prior to the end of a Guarantee  Period may be subject to a Market
Value  Adjustment  which may be negative or positive.  I understand that annuity
values and income payments based on the investment  experience of the Investment
Alternatives  underlying theseparate account are variable and are not guaranteed
as to dollar  amount.  I have received the current  prospectus for this variable
annuity.

Signed  at____________(city)_______________(state) Date ______/__________/______
Owner(s)_____________________________________________________________________
Fax   Number   ______________________   E-mail   Address   _____________________
- -------------------------------------------------------------------------------
8. AGENT USE ONLY Will the annuity  applied  for replace or change any  existing
annuity or life  insurance?  _________Yes  ______________No  Agent Name  (please
print)____________________Phone     No.    _______________    Agent    Signature
___________________________   Soc.   Sec.   No.   ________________   Fax  Number
____________________________  E-mail  Address_______________Agent  GA No. (Joint
Business)________________  FL License No. _______________ Client's B/D Acct. No.
_______________________  B/D  Name  __________________   Designation:   _______A
__________B  Note:  Please be advised  that a firm  designation  may override an
individual  agentdesignation.  If no  designation  is  given,  "A"  will  be the
designation.
- -------------------------------------------------------------------------------
The following states require insurance applicants to acknowledge a fraud warning
statement.  Please  refer to the  fraud  warning  statement  for  your  state as
indicated                                                                 below.
- -------------------------------------------------------------------------------
1. For AR, KY, ME, NM, OH and PA: Any person who  knowingly  and with  intent to
defraud any insurance company or other person files an application for insurance
or statement of claim containing any materially  false  information or conceals,
for the purpose of misleading,  information concerning any fact material thereto
commits a fraudulent insurance act, which is a crime and subjects such person to
criminal and civil penaltie.
Applicant's Signature ________________________ Date ______________

- -------------------------------------------------------------------------------
2. For FL: Any person  who  knowingly  and with  intent to injure,  defraud,  or
deceive any insurer files a statement of claim or an application  containing any
false, incomplete,  or misleading information is guilty of a felony of the third
degree.
Applicant's Signature ________________________ Date ______________

- -------------------------------------------------------------------------------
3. For NJ: Any person who includes  any false or  misleading  information  on an
applicationfor  an insurance  policy is guilty of a felony of the third  degree.
Applicant's Signature ________________________ Date ______________

- -------------------------------------------------------------------------------
4. For CO: It is unlawful to knowingly provide false, incomplete,  or misleading
facts or  information  to an insurance  company for the purpose of defrauding or
attempting to defraud the company.  Penalties may include  imprisonment,  fines,
denial of insurance  and civil  damages.  Any  insurance  company or agent of an
insurance company who knowingly provides false, incomplete,  or misleading facts
or  information  to a policy holder or claimant for the purpose of defrauding or
attempting  to defraud the policy holder or claimant with regard to a settlement
or award  payable  from  insurance  proceeds  shall be reported to the  Colorado
Division  of  Insurance   within  the   Department   of   Regulatory   Agencies.
Applicant's Signature ________________________ Date ______________

- --------------------------------------------------------------------------------
5. For LA: Any person who  knowingly  presents a false or  fraudulent  claim for
payment of a loss or benefit  or  knowingly  presents  false  information  in an
application  for  insurance is guilty of a crime and may be subject to fines and
confinement  in  prison.  Applicant's  Signature  ________________________  Date
______________

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

6. For AZ: Upon your  written  request we will  provide you within a  reasonable
period of time,  reasonable,  factual  information  regarding  the  benefits and
provisions of the annuity contract for which you are applying. If for any reason
you are not satisfied with the contract,  you may return the contract within ten
days after you receive it. If the  contract  you are  applying for is a variable
annuity,  you will  receive  an  amount  equal to the sum of (i) the  difference
between the premiums  paid and the amounts  allocated  to any account  under the
contract  and (ii) the  Contract  Value on the  date the  returned  contract  is
received    by   our    company    or   our   agent.    Applicant's    Signature
________________________ Date ______________

- -------------------------------------------------------------------------------
7. For D.C.: Warning: It is a crime to provide false or misleading information
to an insurer for the purpose of defrauding the insurer or any other person.
Penalties include imprisonment and/or fines.  In addition, an insurer may deny
insurance benefits if false information materially related to a claim was
provided by the applicant.
Applicant's Signature ________________________ Date ______________


GLMR148





Glenbrook Life
and Annuity Company
A Stock Company

Headquarters: 3100 Sanders Road, Northbrook, Illinois  60062-7154


Flexible Premium Deferred Variable Annuity Contract


Throughout this Contract, "you" and "your" refer to the Contract owner(s). "We",
"us" and "our" refer to Glenbrook Life and Annuity Company.

Contract Summary
This flexible  premium  deferred  variable  annuity  provides a cash  withdrawal
benefit and a death benefit during the  Accumulation  Phase and periodic  income
payments beginning on the Payout Start Date during the Payout Phase.

The dollar amount of income  payments or other values provided by this Contract,
when based on the investment  experience of the Variable  Account,  will vary to
reflect the performance of the Variable  Account.  For amounts in the Guaranteed
Maturity Fixed Account, the withdrawal benefit, the death benefit,  transfers to
other  sub-accounts  and any periodic income payments may be subject to a Market
Value  Adjustment  which may result in an upward or downward  adjustment  of the
amount distributed.

This Contract does not pay dividends.

The tax status of this  Contract  as it applies to the owner  should be reviewed
each year.

PLEASE READ YOUR CONTRACT CAREFULLY.

This is a legal  contract  between the  Contract  owner and  Glenbrook  Life and
Annuity Company.

Return Privilege
Upon written request we will provide you with factual information  regarding the
benefits and  provisions  contained in this  Contract.  If you are not satisfied
with this  Contract for any reason,  you may return it to us or our agent within
20 days after you receive it. We will refund any purchase payments  allocated to
the Variable Account,  adjusted to reflect investment gain or loss from the date
of allocation to the date of cancellation,  plus any purchase payments allocated
to the Fixed Account.  (Where required by state law, we will refund any purchase
payments.)  If this  Contract is  qualified  under  Section 408 of the  Internal
Revenue  Code,  we will  refund the  greater  of any  purchase  payments  or the
Contract Value. A refund under this return privilege  excludes the actual amount
of any Credit Enhancement.

If you have any questions  about your  Glenbrook Life variable  annuity,  please
contact Glenbrook Life at (800) 776-6978.






    Secretary                         Chairman and Chief Executive Officer


<PAGE>



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TABLE OF CONTENTS
- ------------------------------------------------------------------------------

THE PERSONS INVOLVED.........................................................3

ACCUMULATION PHASE...........................................................4

PAYOUT PHASE................................................................11

INCOME PAYMENT TABLES.......................................................13

GENERAL PROVISIONS..........................................................15


<PAGE>


GLMU130

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

THE PERSONS INVOLVED
- ------------------------------------------------------------------------------


Owner The person named at the time of  application is the Owner of this Contract
unless  subsequently  changed.  As Owner,  you will receive any periodic  income
payments, unless you have directed us to pay them to someone else.

You may exercise all rights  stated in this  Contract,  subject to the rights of
any irrevocable Beneficiary.

You may change the Owner or  Beneficiary  at any time. If the Owner is a natural
person,  you may change the  Annuitant  prior to the Payout Start Date.  Once we
have  received a  satisfactory  written  request  for an Owner,  Beneficiary  or
Annuitant  change,  the change will take effect as of the date you signed it. We
are not liable for any payment we make or other action we take before  receiving
any written request for a change from you.

You may not assign an interest in this  Contract as collateral or security for a
loan. However, you may assign periodic income payments under this Contract prior
to the Payout Start Date. We are bound by an assignment  only if it is signed by
the  assignor and filed with us. We are not  responsible  for the validity of an
assignment.

If the sole surviving Owner dies prior to the Payout Start Date, the Beneficiary
becomes the new Owner.  If the sole surviving  Owner dies after the Payout Start
Date,  the  Beneficiary  becomes the new Owner and will  receive any  subsequent
guaranteed income payments.

If more than one person is designated as Owner:

o    Owner as used in this Contract refers to all people named as Owners, unless
     otherwise indicated;

o    any request to exercise ownership rights must be signed by all Owners; and

o    on the death of any person who is an Owner,  the surviving  person(s) named
     as Owner will continue as Owner.


Annuitant The Annuitant is the person named on the Annuity Data Page, but may be
changed  by the  Owner,  as  described  above.  The  Annuitant  must be a living
individual.  If the  Annuitant  dies prior to the  Payout  Start  Date,  the new
Annuitant will be:

o        the youngest Owner; otherwise,

o        the youngest Beneficiary.


Beneficiary The Beneficiary is the person(s) named on the Annuity Data Page, but
may be  changed  by the  Owner,  as  described  above.  We  will  determine  the
Beneficiary  from the most recent written  request we have received from you. If
you do not name a Beneficiary or if the  Beneficiary  named is no longer living,
the Beneficiary will be:

o        your spouse if living; otherwise,

o        your children equally if living; otherwise,

o        your estate.

The  Beneficiary may become the Owner under the  circumstances  described in the
Owner provision above.



<PAGE>



The Beneficiary may assign benefits under the Contract, as described above, once
they are payable to the Beneficiary. We are bound by an assignment only if it is
signed  by the  assignor  and  filed  with us.  We are not  responsible  for the
validity of an assignment.


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ACCUMULATION PHASE
- ------------------------------------------------------------------------------


Accumulation  Phase Defined The "Accumulation  Phase" is the first of two phases
during your  Contract.  The  Accumulation  Phase begins on the issue date of the
Contract  stated on the Annuity Data Page.  This phase will  continue  until the
Payout Start Date unless the Contract is terminated before that date.


Contract Year "Contract Year" is the one year period beginning on the issue date
of the Contract and on each anniversary of the issue date.


Investment  Alternatives The "Investment  Alternatives"  are the Sub-accounts of
the  Variable  Account and any Fixed  Account  Options.  We reserve the right to
limit the availability of the Investment Alternatives.


Credit  Enhancement A "Credit  Enhancement"  will be allocated to the Investment
Alternatives  you  selected  at the  time of the  purchase  payment.  It will be
allocated  among the  Investment  Alternatives  in the same  proportions  as the
purchase payment.  The amount of your Credit  Enhancement will be the percentage
of your purchase payment  indicated on the Annuity Data Page. We do not consider
Credits to be an investment in the Contract for income tax purposes.


Purchase Payments Purchase payments are initial and subsequent  payments made by
you, and do not include any Credit Enhancement.  The initial purchase payment is
shown on the Annuity Data Page. You may make subsequent purchase payments during
the  Accumulation  Phase. The number of purchase  payments is unlimited.  We may
limit the amount of each  subsequent  purchase  payment that we will accept to a
minimum of $500 and a maximum of $1,000,000.

We will invest the purchase payments in the Investment  Alternatives you select.
You may allocate any portion of your purchase  payment in whole percents from 0%
to 100% or in exact dollar  amounts to any of the Investment  Alternatives.  The
total allocation must equal 100%.

The  allocation  of the initial  purchase  payment is shown on the Annuity  Data
Page.  Allocation of each  subsequent  purchase  payment will be the same as the
allocation  for  the  most  recent  purchase   payment  unless  you  change  the
allocation. You may change the allocation of subsequent purchase payments at any
time,  without charge,  simply by giving us written  notice.  Any change will be
effective at the time we receive the notice.


Variable Account The "Variable  Account" for this Contract is the Glenbrook Life
and Annuity Company  Separate  Account A. This account is a separate  investment
account to which we allocate  assets  contributed  under this and certain  other
contracts.  These assets will not be charged with  liabilities  arising from any
other business we may have.


Variable  Sub-accounts The Variable Account is divided into  Sub-accounts.  Each
Sub-account  invests  solely in the shares of the mutual  fund  underlying  that
Sub-account.


Fixed Account Options The Fixed Account options are the Guarantee Periods of the
Guaranteed Maturity Fixed Account.


<PAGE>




Guaranteed  Maturity  Fixed  Account The  Guaranteed  Maturity  Fixed Account is
divided into Guarantee Periods. A Guarantee Period is identified by the date the
Guarantee Period begins and the duration of the Guarantee  Period.  You create a
Guarantee Period when:

o    you make a purchase payment; or

o    you select a new Guarantee Period after the prior Guarantee Period expires;
     or

o    you  transfer  an  amount  from an  existing  Sub-account  of the  Variable
     Account,  from another  Guarantee  Period of the Guaranteed  Maturity Fixed
     Account, or from any Fixed Account Options.

You must select the  Guarantee  Period for all purchase  payments and  transfers
allocated  to the  Guaranteed  Maturity  Fixed  Account.  If you do not select a
Guarantee  Period for a purchase  payment or  transfer,  we will assign the same
period(s) as used for the most recent purchase  payment.  Guarantee  Periods are
offered at our discretion and may range from one to ten years. We may change the
Guarantee Periods available for future purchase payments or transfers  allocated
to the Guaranteed Maturity Fixed Account.

We will  mail you a notice  prior to the  expiration  of each  Guarantee  Period
outlining the options available at the end of the Guarantee  Period.  During the
30 day period after a Guarantee Period expires you may:

o    take no action and we will  automatically  apply the Guarantee Period value
     to a Guarantee  Period of the same  duration as the  Guarantee  Period that
     just expired to be  established  on the day the previous  Guarantee  Period
     expired; or

o    notify us to apply the Guarantee Period value to a new Guarantee  Period(s)
     to be established on the day the previous Guarantee Period expired; or

o    notify us to apply the  Guarantee  Period value to any  Sub-account  of the
     Variable Account on the day we receive the notification; or

o    receive a portion of the  Guarantee  Period  value or the entire  Guarantee
     Period value through a partial or full  withdrawal that is not subject to a
     Market Value Adjustment;  however, a Withdrawal Charge and taxes may apply.
     In this case, the amount withdrawn will be deemed to have been withdrawn on
     the day the Guarantee Period expired.


Crediting  Interest We credit  interest  daily to money  allocated  to the Fixed
Account  options at a rate which compounds over one year to the interest rate we
guaranteed when the money was allocated.  We will credit interest to the initial
purchase  payment  including Credit  Enhancement  allocated to any Fixed Account
Option from the issue  date.  We will credit  interest  to  subsequent  purchase
payments  including Credit  Enhancements  allocated to any Fixed Account Options
from the date we receive them at a rate declared by us. We will credit  interest
to transfers to the Guaranteed Maturity Fixed Account from the date the transfer
is made.  The minimum  guaranteed  interest  rate, if any, for any Fixed Account
Options is shown on the Annuity Data Page.


Transfers  Prior to the Payout  Start Date,  you may  transfer  amounts  between
Investment  Alternatives.  You may make 12 transfers  per Contract  Year without
charge.  Each  transfer  after the 12th  transfer  in any  Contract  Year may be
assessed  a  $10  transfer   fee.   Transfers   are  subject  to  the  following
restrictions:

o    Any  transfer  from a Guarantee  Period of the  Guaranteed  Maturity  Fixed
     Account  will be subject to a Market Value  Adjustment  unless the transfer
     occurs during the 30 day period after the Guarantee Period expires.

o    We reserve the right to limit the number of transfers in any Contract  Year
     or to refuse any transfer request for an Owner or certain Owners if, in our
     sole discretion, we believe that:



<PAGE>



o    excessive trading by such Owner or Owners or a specific transfer request or
     group of transfer requests may have a detrimental  effect on Unit Values or
     the  share  prices  of the  underlying  mutual  funds  or  would  be to the
     disadvantage of other Contract Owners; or

o    We are  informed  by one or more of the  underlying  mutual  funds that the
     purchase or redemption  of shares is to be restricted  because of excessive
     trading or a specific  transfer or group of  transfers  is deemed to have a
     detrimental effect on share prices of affected underlying mutual funds.

Such  restrictions may be applied in any manner which is reasonably  designed to
prevent any use of the  transfer  right which is  considered  by us to be to the
disadvantage of the other Contract Owners.

We reserve the right to waive the transfer  fees and  restrictions  contained in
this Contract.


Contract Value On the issue date of the Contract,  the "Contract Value" is equal
to the initial  purchase  payment plus the Credit  Enhancement.  After the issue
date, the "Contract Value" is equal to the sum of:

o    the  number  of  Accumulation  Units  you hold in each  Sub-account  of the
     Variable  Account  multiplied  by the  Accumulation  Unit  Value  for  that
     Sub-account on the most recent Valuation Date; plus

o    the total value you have in any Fixed Account Options

If you withdraw the entire Contract Value,  you may receive an amount greater or
less than the Contract  Value  because a Market Value  Adjustment,  a Withdrawal
Charge, and a premium tax charge may apply.


Valuation  Period and Valuation  Date A "Valuation  Period" is the time interval
between the  closing of the New York Stock  Exchange  on  consecutive  Valuation
Dates.  A "Valuation  Date" is any date the New York Stock  Exchange is open for
trading.


Accumulation  Units and Accumulation  Unit Value Amounts which you allocate to a
Sub-account of the Variable Account are used to purchase  Accumulation  Units in
that Sub-account. The Accumulation Unit Value for each Sub-account at the end of
any Valuation Period is calculated by multiplying the Accumulation Unit Value at
the end of the immediately  preceding  Valuation Period by the Sub-account's Net
Investment Factor for the Valuation Period.  The Accumulation Unit Values may go
up or down. Additions or transfers to a Sub-account of the Variable Account will
increase the number of Accumulation  Units for that Sub-account.  Withdrawals or
transfers from a Sub-account of the Variable Account will decrease the number of
Accumulation Units for that Sub-account.


Net Investment  Factor For each  Sub-account of the Variable  Account,  the "Net
Investment  Factor"  for a  Valuation  Period is (A)  divided by (B),  minus (C)
where:

(A)  is the sum of:

     (1)  the net asset  value  per  share of the  mutual  fund  underlying  the
          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 mutual fund underlying the Sub-account  during the current
          Valuation Period.

(B)  is the net  asset  value  per  share  of the  mutual  fund  underlying  the
     Sub-account determined as of the end of the immediately preceding Valuation
     Period.

(C)  is  the  sum  of the  annualized  Administrative  Expense  Charge  and  the
     annualized  Mortality and Expense Risk Charge divided by the number of days
     in the current  calendar year and then multiplied by the number of calendar
     days in the current Valuation Period.



<PAGE>



Charges The charges for this Contract  include  Administrative  Expense Charges,
Mortality  and Expense Risk  Charges,  Contract  Maintenance  Charges,  transfer
charges,  and any  applicable  taxes.  If a withdrawal is made, the Contract may
also be subject to a Withdrawal Charge and a Market Value Adjustment.


Administrative Expense Charge The annualized  Administrative Expense Charge will
never be greater than 0.10%. (See Net Investment Factor for a description of how
this charge is applied.)


Mortality  and Expense  Risk Charge The  annualized  Mortality  and Expense Risk
Charge  will never be  greater  than  1.40%.  (See Net  Investment  Factor for a
description of how this charge is applied.)

Our actual mortality and expense experience will not adversely affect the dollar
amount of variable benefits or other  contractual  payments or values under this
Contract.


Contract  Maintenance  Charge  Prior  to  the  Payout  Start  Date,  a  Contract
Maintenance  Charge will be deducted from your  Contract  Value on each Contract
anniversary.  The charge is only deducted from the  Sub-accounts of the Variable
Account.  The charge will be deducted on a pro-rata basis from each  Sub-account
of the Variable Account. A full Contract  Maintenance Charge will be deducted if
the Contract is  terminated on any date other than a Contract  anniversary.  The
annualized charge will never be greater than $35 per Contract Year. The Contract
Maintenance Charge will be waived if total purchase payments are $50,000 or more
or if all  money is  allocated  to the Fixed  Account  options  on the  Contract
anniversary.

After the Payout Start Date the Contract  Maintenance Charge will be deducted in
equal parts from each income payment.  The Contract  Maintenance  Charge will be
waived if the  Contract  Value on the Payout Start Date is $50,000 or more or if
all payments are Fixed Amount Income Payments.


Taxes Any premium tax relating to this  Contract may be deducted  from  purchase
payments or the Contract Value when the tax is incurred or at a later time.


Withdrawal  You have the right to withdraw part or all of your Contract Value at
any time during the  Accumulation  Phase. A withdrawal  must be at least $50. If
any withdrawal reduces the Contract Value to less than $1,000, we will treat the
request as a withdrawal of the entire Contract Value. If you withdraw the entire
Contract Value, the Contract will terminate.

You must  specify the  Investment  Alternative(s)  from which you wish to make a
withdrawal.  When you make a withdrawal,  your Contract Value will be reduced by
the  amount  paid to you and any  applicable  Withdrawal  Charge,  Market  Value
Adjustment,  and taxes. A Contract  Maintenance  Charge will also be deducted if
the Contract is terminated.  Any Withdrawal Charge will be waived on withdrawals
taken to satisfy IRS minimum  distribution  rules. This waiver is permitted only
for withdrawals which satisfy distributions resulting from this Contract.


Free  Withdrawal  Amount During the first  Contract  Year,  the Free  Withdrawal
Amount equals 15% of your initial  purchase  payment.  Each subsequent  Contract
Year the Free Withdrawal  Amount is equal to 15% of the Contract Value as of the
beginning of that  Contract  Year.  Each Contract Year you may withdraw the Free
Withdrawal Amount without any Withdrawal Charge or Market Value Adjustment.  Any
Free Withdrawal  Amount which is not withdrawn in a year may not be carried over
to increase the Free Withdrawal Amount available in a subsequent year.


Withdrawal  Charge  Withdrawals in excess of the Free Withdrawal  Amount will be
subject to a Withdrawal Charge as follows:



<PAGE>





         Payment Year:     1     2    3    4   5    6    7    8   9 and Later

         Percentage:       8%    8%   7%   7%  6%   5%   4%   3%    0%


To  determine  the  Withdrawal  Charge,  we assume that  purchase  payments  are
withdrawn first,  beginning with the oldest payment.  When all purchase payments
have been withdrawn,  additional  withdrawals  will not be assessed a Withdrawal
Charge.

For each  purchase  payment  withdrawal,  the  "Payment  Year"  in the  table is
measured from the date we received the purchase  payment.  The Withdrawal Charge
is determined by multiplying  the percentage  corresponding  to the Payment Year
times that part of each  purchase  payment  withdrawal  that is in excess of the
Free Withdrawal Amount.


Market  Value  Adjustment  Activities  in a Guarantee  Period of the  Guaranteed
Maturity  Fixed  Account  that may be subject to a Market Value  Adjustment  are
withdrawals in excess of the Free Withdrawal Amount, transfers,  death benefits,
and amounts  applied to an income plan.  An activity will be subject to a Market
Value Adjustment unless:

o    it occurs during the 30 day period after a Guarantee Period expires; or

o    it is a transfer that is part of a Dollar Cost Averaging program.

A Market Value  Adjustment  is an increase or decrease in the amount  reflecting
changes  in  the  level  of  interest  rates  since  the  Guarantee  Period  was
established. As used in this provision, "Treasury Rate" means the U. S. Treasury
Note Constant  Maturity yield as reported in Federal  Reserve  Bulletin  Release
H.15. 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;

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

         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;

An adjustment factor is determined from the following formula:

                                .9 x (I - J) x N

The  amount  subject  to a  Market  Value  Adjustment  that is  deducted  from a
Guarantee  Period of the Guaranteed  Maturity Fixed Account is multiplied by the
adjustment factor to determine the amount of the Market Value Adjustment.

Any Market Value  Adjustment will be waived on withdrawals  taken to satisfy IRS
minimum  distribution rules. This waiver is permitted only for withdrawals which
satisfy distributions resulting from this Contract.


Death of Owner If you die prior to the Payout Start Date,  the new Owner will be
the surviving  Owner. If there is no surviving  Owner, the new Owner will be the
Beneficiary(ies). The new Owner will have the options described below.

1.   If the sole new Owner is your spouse:




<PAGE>



     a.   Your spouse may elect,  within 180 days of the date of your death,  to
          receive the Death Benefit described below in a lump sum.

     b.   Your spouse may elect,  within 180 days of the date of your death,  to
          receive an amount equal to the Death Benefit paid out under one of the
          Income Plans  described in the Payout Phase section.  The Payout Start
          Date must be within  one year of your date of death.  Income  Payments
          must be:

          i.   over the life of your spouse; or

          ii.  for a guaranteed number of payments from 5 to 30 years but not to
               exceed the life expectancy of your spouse; or

          iii. Over the life of your spouse with a guaranteed number of payments
               from 5 to 30 years but not to exceed the life  expectancy of your
               spouse.

     c.   If your  spouse  does not elect one of the  options  above,  then your
          spouse may continue the Contract in the  Accumulation  Phase as if the
          death  had  not  occurred.   If  the  Contract  is  continued  in  the
          Accumulation Phase, the following conditions apply:

          o    On the day the Contract is continued,  the Contract Value will be
               the  Death  Benefit  as  determined  at the end of the  Valuation
               Period during which we received due proof of death.

          o    The surviving  spouse may make a single  withdrawal of any amount
               within  one  year  of the  date  of  death  without  incurring  a
               Withdrawal Charge.

          o    Prior  to  the  Payout  Start  Date,  the  Death  Benefit  of the
               continued Contract will be the greater of:

               o    the sum of all  purchase  payments  reduced by a  withdrawal
                    adjustment, as defined in the Death Benefit provision; or

               o    the  Contract  Value  on the  date we  determine  the  Death
                    Benefit; or

               o    the Contract Value on each Death Benefit  Anniversary  prior
                    to the date we determine the Death Benefit, increased by any
                    purchase payments made since that Death Benefit  Anniversary
                    and reduced by a  withdrawal  adjustment,  as defined in the
                    Death Benefit provision.

2.   If the new Owner is not your spouse but is a Natural Person,  then this new
     Owner has the following options:


     a.   The new Owner may elect, within 180 days of the date of your death, to
          receive the death benefit described below in a lump sum.

     b.   The new Owner may elect, within 180 days of the date of your death, to
          receive an amount equal to the Death Benefit paid out under one of the
          Income Plans  described in the Payout Phase section.  The Payout Start
          Date must be within  one year of your date of death.  Income  Payments
          must be:

          i.   over the life of the new Owner; or

          ii.  for a guaranteed number of payments from 5 to 30 years but not to
               exceed the life expectancy of the new Owner; or

          iii. Over  the  life of the new  Owner  with a  guaranteed  number  of
               payments from 5 to 30 years but not to exceed the life expectancy
               of the new Owner.



<PAGE>



          c.   The new Owner may elect to receive the  Settlement  Value payable
               in a lump sum within 5 years of your date of death.

3.   If the new Owner is a corporation or other non-Natural Person:


     a.   The  non-natural  Owner may elect,  within 180 days of your death,  to
          receive the Death Benefit in a lump sum.

     b.   The  non-natural  Owner  may elect to  receive  the  Settlement  Value
          payable in a lump sum within 5 years of your date of death.

If any new Owner is a non-Natural  Person,  all new Owners will be considered to
be non-Natural Persons for the above purposes.

If the new Owner who is not your spouse does not make one of the above described
elections,  the Settlement Value must be withdrawn by the new Owner on or before
the mandatory  distribution date 5 years after your date of death.  Under any of
these options, all ownership rights are available to the new Owner from the date
of your  death to the date on which the Death  Benefit  or  Settlement  Value is
paid. We reserve the right to extend beyond 180 days the period when we will pay
the Death Benefit.


Death of Annuitant If the  Annuitant who is not also the Owner dies prior to the
Payout Start Date,  the Owner must elect an applicable  option listed below.  If
the option  selected is 1(a) or 1(b)(ii)  below,  the new Annuitant  will be the
youngest Owner, unless the Owner names a different Annuitant.

1.   If the Owner is a Natural Person:


     a.   The Owner may choose to continue this Contract as if the death had not
          occurred; or

     b.   If we  receive  due proof of death  within 180 days of the date of the
          Annuitant's death, then the Owner may alternatively choose to:

          i.   Receive the Death Benefit in a lump sum; or

          ii.  Apply the Death Benefit to an Income Plan which must begin within
               one year of the date of death.

2.   If the Owner is a non-Natural Person:


     a.   The  non-natural  Owner may elect,  within 180 days of the Annuitant's
          date of death, to receive the Death Benefit in a lump sum; or

     b.   The  non-natural  Owner  may elect to  receive  the  Settlement  Value
          payable in a lump sum within 5 years of the Annuitant's date of death.

If the non-natural Owner does not make one of the above described elections, the
Settlement  Value must be  withdrawn by the  non-natural  Owner on or before the
mandatory distribution date 5 years after the Annuitant's death.

Under any of these options, all ownership rights are available to the Owner from
the date of the  Annuitant's  death to the date on which  the Death  Benefit  or
Settlement  Value is paid.  We reserve  the right to extend  beyond 180 days the
period when we will pay the Death Benefit.


Death Benefit  Except as defined above when the surviving  spouse  continues the
Contract,  prior to the Payout  Start  Date,  the Death  Benefit is equal to the
greatest of the following Death Benefit alternatives:



<PAGE>



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

o    the Contract Value on the date we determine the Death Benefit; or

o    the amount that would have been  payable in the event of a full  withdrawal
     of the Contract Value on the date we determine the Death Benefit; or

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

The first Death Benefit Anniversary is the 8th Contract anniversary.  Subsequent
Death Benefit Anniversaries are those Contract  anniversaries that are multiples
of 8 Contract Years, beginning with the 16th Contract anniversary.  For example,
the 8th, 16th, and 24th 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)  = the withdrawal amount.

     (b)  = the Contract Value immediately prior to the withdrawal.

     (c)  = the value of the applicable  Death Benefit  alternative  immediately
          prior to the withdrawal.

We will  determine the value of the Death Benefit as of the end of the Valuation
Period  during  which we receive a  complete  request  for  payment of the Death
Benefit. A complete request includes due proof of death.


Settlement  Value The Settlement  Value is the same amount that would be paid in
the event of a full  withdrawal  of the Contract  Value.  We will  calculate the
Settlement  Value  at the  end of  the  Valuation  Period  coinciding  with  the
requested distribution date for payment or on the mandatory distribution date of
5 years after the date of death, whichever is earlier.


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

PAYOUT PHASE
- ------------------------------------------------------------------------------


Payout Phase  Defined The "Payout  Phase" is the second of the two phases during
your Contract. During this phase the Contract Value adjusted by any Market Value
Adjustment  and less any  applicable  taxes is applied  to the  Income  Plan you
choose and is paid out as provided in that plan.

The Payout Phase begins on the Payout Start Date. It continues until we make the
last payment as provided by the Income Plan chosen.


Payout  Start  Date The  "Payout  Start  Date" is the  date the  Contract  Value
adjusted by any Market Value Adjustment and less any applicable taxes is applied
to an Income  Plan.  The  anticipated  Payout Start Date is shown on the Annuity
Data Page.  You may  change  the Payout  Start Date by writing to us at least 30
days prior to this date.

The Payout Start Date must be on or before the later of:

o        the Annuitant's 90th birthday; or

o        the 10th anniversary of the Contract's issue date.




<PAGE>



Income  Plans An "Income  Plan" is a series of payments on a scheduled  basis to
you or to another  person  designated  by you. The Contract  Value on the Payout
Start Date  adjusted  by any Market  Value  Adjustment  and less any  applicable
taxes, will be applied to your Income Plan choice from the following list:

1.   Life Income with Guaranteed Payments.  We will make payments for as long as
     the Annuitant  lives.  If the Annuitant dies before the selected  number of
     guaranteed  payments  have been made, we will continue to pay the remainder
     of the guaranteed payments.

2.   Joint and  Survivor  Life Income  with  Guaranteed  Payments.  We will make
     payments for as long as either the Annuitant or joint  Annuitant,  named at
     the time of Income Plan  selection,  lives.  If both the  Annuitant and the
     joint Annuitant die before the selected number of guaranteed  payments have
     been  made,  we  will  continue  to pay  the  remainder  of the  guaranteed
     payments.

3.   Guaranteed Number of Payments. We will make payments for a specified number
     of months  beginning on the Payout Start Date. These payments do not depend
     on the Annuitant's  life. The number of months guaranteed may be from 60 to
     360.  Income  payments  for  less  than  120  months  may be  subject  to a
     Withdrawal Charge.

We reserve the right to make available other Income Plans.


Income Payments  Income payment amounts may be Variable Amount Income  Payments,
Fixed Amount Income  Payments,  or both. The method of  calculating  the initial
payment is  different  for the two types of payments.  The Contract  Maintenance
Charge will be deducted in equal payments from each income payment. The Contract
Maintenance Charge will be waived if the Contract Value on the Payout Start Date
is $50,000 or more or if all payments are Fixed Amount Income Payments.


Variable  Amount Income  Payments  Variable  Amount Income Payments will vary to
reflect the  performance  of the  Variable  Account.  The portion of the initial
income  payment based upon a particular  Variable  Sub-account  is determined by
applying  the amount of the  Contract  Value in that  Sub-account  on the Payout
Start Date, less any applicable  premium tax, to the appropriate  value from the
Income Payment  Table.  This portion of the initial income payment is divided by
the Annuity Unit Value on the Payout Start Date for that Variable Sub-account to
determine the number of Annuity Units from that  Sub-account  which will be used
to determine  subsequent  income  payments.  Unless  transfers  are made between
Sub-accounts,  each subsequent income payment from that Sub-account will be that
number of Annuity Units times the Annuity Unit Value for the Sub-account for the
Valuation Date on which the income payment is made.


Annuity Unit Value The Annuity Unit Value for each  Sub-account  of the Variable
Account at the end of any Valuation Period is calculated by:

o    multiplying the Annuity Unit Value at the end of the immediately  preceding
     Valuation  Period by the  Sub-account's  Net  Investment  Factor during the
     period; and then

o    dividing  the  result by 1.000  plus the  assumed  investment  rate for the
     period.  The assumed  investment rate is an effective annual rate of 3%. We
     reserve the right to offer an assumed investment rate greater than 3%.


Fixed Amount Income  Payments The income  payment amount derived from any monies
allocated to the Fixed Account options during the  Accumulation  Phase are fixed
for the  duration  of the  Income  Plan.  The Fixed  Amount  Income  Payment  is
calculated  by applying the portion of the Contract  Value in the Fixed  Account
options on the Payout Start Date,  adjusted by any Market Value  Adjustment  and
less any applicable  premium tax, to the greater of the  appropriate  value from
the Income Payment Table selected or such other value as we are offering at that
time.




<PAGE>



Annuity Transfers After the Payout Start Date, no transfers may be made from the
Fixed Amount Income  Payment.  Transfers  between  Sub-accounts  of the Variable
Account,  or from the Variable  Amount Income Payment to the Fixed Amount Income
Payment may not be made for six months  after the Payout  Start Date.  Transfers
may be made once every six months thereafter.


Payout Terms and  Conditions  The income  payments are subject to the  following
terms and conditions:

o    If the  Contract  Value is less than  $2,000,  or not  enough to provide an
     initial payment of at least $20, we reserve the right to:

     o    change the payment frequency to make the payment at least $20; or

     o    terminate the Contract and pay you the Contract  Value adjusted by any
          Market Value Adjustment and less any applicable taxes in a lump sum.

     o    If we do not  receive a written  choice of an Income  Plan from you at
          least 30 days before the Payout  Start  Date,  the Income Plan will be
          Life Income with Guaranteed Payments for 120 months.

o    If you choose an Income Plan which  depends on any  person's  life,  we may
     require:

     o    proof of age and sex before income payments begin; and

     o    proof that the  Annuitant or joint  Annuitant is still alive before we
          make each payment.

o    After the  Payout  Start  Date,  the  Income  Plan  cannot be  changed  and
     withdrawals  cannot be made unless income  payments are being made from the
     Variable Account under Income Plan 3. You may terminate the income payments
     being made from the  Variable  Account  under Income Plan 3 at any time and
     withdraw their value, subject to Withdrawal Charges.

o    If any Owner dies during the Payout Phase,  the remaining  income  payments
     will be paid to the successor Owner as scheduled.


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

INCOME PAYMENT TABLES
- ------------------------------------------------------------------------------


The initial income payment will be at least the amount based on the adjusted age
of the  Annuitant(s)  and the tables below,  less any federal income taxes which
are  withheld.  The  adjusted  age is the actual  age on the  Payout  Start Date
reduced  by one year for each six full  years  between  January  1, 1983 and the
Payout Start Date.  Income payments for ages and guaranteed  payment periods not
shown below will be determined on a basis consistent with that used to determine
those that are shown.  The Income  Payment Tables are based on 3.0% interest and
the 1983a Annuity Mortality Tables.




<PAGE>


<TABLE>
<CAPTION>

Income Plan 1 - Life Income with Guaranteed Payments for 120 Months
============================================================================================================================

                           Monthly Income Payment for each $1,000 Applied to this Income Plan
- ----------------------------------------------------------------------------------------------------------------------------
- ------------------- ---------------------- ---------------- ---------------------- ---------------- ------------------------

    Annuitant's                              Annuitant's                             Annuitant's
     Adjusted         Male     Female         Adjusted        Male     Female         Adjusted        Male    Female
       Age                                       Age                                     Age
- ------------------- ---------------------- ---------------- ---------------------- ---------------- ------------------------
- ------------------- ---------------------- ---------------- ---------------------- ---------------- ------------------------

<S>    <C>             <C>       <C>              <C>          <C>      <C>               <C>          <C>      <C>
       35              $3.43     $3.25            49           $4.15    $3.82             63           $5.52    $4.97
       36               3.47      3.28            50            4.22     3.88             64            5.66     5.09
       37               3.51      3.31            51            4.29     3.94             65            5.80     5.22
       38               3.55      3.34            52            4.37     4.01             66            5.95     5.35
       39               3.60      3.38            53            4.45     4.07             67            6.11     5.49
       40               3.64      3.41            54            4.53     4.14             68            6.27     5.64
       41               3.69      3.45            55            4.62     4.22             69            6.44     5.80
       42               3.74      3.49            56            4.71     4.29             70            6.61     5.96
       43               3.79      3.53            57            4.81     4.38             71            6.78     6.13
       44               3.84      3.58            58            4.92     4.46             72            6.96     6.31
       45               3.90      3.62            59            5.02     4.55             73            7.13     6.50
       46               3.96      3.67            60            5.14     4.65             74            7.31     6.69
       47               4.02      3.72            61            5.26     4.75             75            7.49     6.88
       48               4.08      3.77            62            5.39     4.86
=================== ====================== ================ ====================== ================ ========================

Income Plan 2 - Joint and Survivor Life Income with Guaranteed Payments for 120 Months
==============================================================================================================================

                            Monthly Income Payment for each $1,000 Applied to this Income Plan
- ------------------------------------------------------------------------------------------------------------------------------
- -------------------- ---------------------------------------------------------------------------------------------------------

                     Female Annuitant's Adjusted Age
- -------------------- ---------------------------------------------------------------------------------------------------------
- -------------------- ---------- ------------ ----------- ---------- ---------- ---------- ---------- --------- ---------------

      Male
   Annuitant's          35         40        45          50         55           60         65           70         75
     Adjusted
       Age
- -------------------- ---------- ------------ ----------- ---------- ---------- ---------- ---------- --------- ---------------
- -------------------- ---------- ---------- ---------- ---------- ----------- ---------- ------------ ----------- -------------

       35             $3.09      $3.16      $3.23      $3.28      $3.32       $3.36      $3.39        $3.40       $3.42
       40              3.13       3.22       3.31       3.39       3.46        3.51       3.56         3.59        3.61
       45              3.17       3.28       3.39       3.50       3.60        3.69       3.76         3.81        3.85
       50              3.19       3.32       3.45       3.60       3.74        3.87       3.98         4.07        4.14
       55              3.21       3.35       3.51       3.68       3.87        4.06       4.23         4.37        4.48
       60              3.23       3.37       3.55       3.75       3.98        4.23       4.47         4.70        4.88
       65              3.24       3.39       3.57       3.80       4.07        4.37       4.71         5.04        5.34
       70              3.24       3.40       3.59       3.83       4.13        4.48       4.90         5.36        5.81
       75              3.25       3.41       3.61       3.86       4.17        4.56       5.04         5.61        6.22
==================== ========== ========== ========== ========== =========== ========== ============ =========== =============
</TABLE>

Income Plan 3 - Guaranteed Number of Payments
================================= ==============================================

                                  Monthly Income Payment for each
    Specified Period              $1,000 Applied to this Income Plan
- --------------------------------- ----------------------------------------------
- --------------------------------- ----------------------------------------------

        10 Years                                    $9.61
        11 Years                                     8.86
        12 Years                                     8.24
        13 Years                                     7.71
        14 Years                                     7.26
        15 Years                                     6.87
        16 Years                                     6.53
        17 Years                                     6.23
        18 Years                                     5.96
        19 Years                                     5.73
        20 Years                                     5.51
================================= ==============================================



<PAGE>



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

GENERAL PROVISIONS
- ------------------------------------------------------------------------------


The Entire Contract The entire contract  consists of this Contract,  any written
application, and any endorsements and riders.

All  statements  made  in a  written  application  are  representations  and not
warranties. No statement will be used by us in defense of a claim or to void the
Contract unless it is included in a written application.

We may not modify this Contract  without your consent,  except to make it comply
with any  changes  in the  Internal  Revenue  Code or as  required  by any other
applicable law. Only our officers may change this Contract.  No other individual
may do this.


Incontestability  We will not contest the  validity of this  Contract  after the
issue date.


Misstatement of Age or Sex If any age or sex has been misstated, we will pay the
amounts which would have been paid at the correct age and sex.

If we find the  misstatement  of age or sex after the income  payments begin, we
will:

o    pay all amounts  underpaid  including  interest  calculated at an effective
     annual rate of 6%; or

o    stop payments until the total payments are equal to the corrected amount.


Annual  Statement At least once a year,  prior to the Payout Start Date, we will
send you a statement containing Contract Value information.  We will provide you
with  Contract  Value  information  at any time upon  request.  The  information
presented will comply with any applicable law.


Settlements  We may  require  that this  Contract be returned to us prior to any
settlement.  We must receive due proof of death of the Owner or Annuitant  prior
to settlement of a death claim.

Any full  withdrawal  or Death Benefit under this Contract will not be less than
the minimum benefits  required by any statute of the state in which the Contract
is delivered.


Deferment  of Payments We will pay any  amounts  due from the  Variable  Account
under this Contract within seven days, unless:

o    the New York Stock  Exchange  is closed for other  than usual  weekends  or
     holidays, or trading on such Exchange is restricted;

o    an emergency  exists as defined by the Securities and Exchange  Commission;
     or

o    the Securities and Exchange  Commission permits delay for the protection of
     Contract holders.

We reserve the right to postpone  payments or transfers  from the Fixed  Account
options for up to six months.  If we elect to postpone  payments  from the Fixed
Account for 30 days or more, we will pay interest as required by applicable law.
Any interest would be payable from the date the  withdrawal  request is received
by us to the date the payment is made.




<PAGE>



Variable Account  Modifications We reserve the right, subject to applicable law,
to make  additions  to,  deletions  from, or  substitutions  for the mutual fund
shares  underlying  the  Sub-accounts  of the  Variable  Account.  We  will  not
substitute  any shares  attributable  to your interest in a  Sub-account  of the
Variable  Account without notice to you and prior approval of the Securities and
Exchange  Commission,  to the extent  required by the Investment  Company Act of
1940, as amended.

We  reserve  the right to  establish  additional  Sub-accounts  of the  Variable
Account,  each of which would invest in shares of another  mutual fund.  You may
then   instruct  us  to  allocate   purchase   payments  or  transfers  to  such
Sub-accounts, subject to any terms set by us or the mutual fund.

In the event of any such  substitution or change,  we may by  endorsement,  make
such changes as may be necessary or appropriate to reflect such  substitution or
change.

If we deem it to be in the best  interests of persons having voting rights under
the  contracts,  the Variable  Account may be operated as a  management  company
under the Investment  Company Act of 1940, as amended or it may be  deregistered
under such Act in the event such registration is no longer required.

GLMU130
<PAGE>


GLMU133
Glenbrook Life
and Annuity Company
A Stock Company

Headquarters: 3100 Sanders Road, Northbrook, Illinois  60062-7154


Flexible Premium Deferred Variable Annuity Contract


Throughout this Contract, "you" and "your" refer to the Contract owner(s). "We",
"us" and "our" refer to Glenbrook Life and Annuity Company.

Contract Summary
This flexible  premium  deferred  variable  annuity  provides a cash  withdrawal
benefit and a death benefit during the  Accumulation  Phase and periodic  income
payments beginning on the Payout Start Date during the Payout Phase.

The dollar amount of income  payments or other values provided by this Contract,
when based on the investment  experience of the Variable  Account,  will vary to
reflect the performance of the Variable  Account.  For amounts in the Guaranteed
Maturity Fixed Account, the withdrawal benefit, the death benefit,  transfers to
other  sub-accounts  and any periodic income payments may be subject to a Market
Value  Adjustment  which may result in an upward or downward  adjustment  of the
amount distributed.

This Contract does not pay dividends.

The tax status of this  Contract  as it applies to the owner  should be reviewed
each year.

PLEASE READ YOUR CONTRACT CAREFULLY.

This is a legal  contract  between the  Contract  owner and  Glenbrook  Life and
Annuity Company.

Return Privilege
Upon written request we will provide you with factual information  regarding the
benefits and  provisions  contained in this  Contract.  If you are not satisfied
with this  Contract for any reason,  you may return it to us or our agent within
20 days after you receive it. We will refund any purchase payments  allocated to
the Variable Account,  adjusted to reflect investment gain or loss from the date
of allocation to the date of cancellation,  plus any purchase payments allocated
to the Fixed Account.  (Where required by state law, we will refund any purchase
payments.)  If this  Contract is  qualified  under  Section 408 of the  Internal
Revenue  Code,  we will  refund the  greater  of any  purchase  payments  or the
Contract Value. A refund under this return privilege  excludes the actual amount
of any Credit Enhancement.

If you have any questions  about your  Glenbrook Life variable  annuity,  please
contact Glenbrook Life at (800) 776-6978.






        Secretary              Chairman and Chief Executive Officer


<PAGE>



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

TABLE OF CONTENTS
- ------------------------------------------------------------------------------

THE PERSONS INVOLVED.........................................................3

ACCUMULATION PHASE...........................................................4

PAYOUT PHASE................................................................11

INCOME PAYMENT TABLES.......................................................13

GENERAL PROVISIONS..........................................................15


<PAGE>

                                     Page 3
GLMU133

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

THE PERSONS INVOLVED
- ------------------------------------------------------------------------------


Owner The person named at the time of  application is the Owner of this Contract
unless  subsequently  changed.  As Owner,  you will receive any periodic  income
payments, unless you have directed us to pay them to someone else.

You may exercise all rights  stated in this  Contract,  subject to the rights of
any irrevocable Beneficiary.

You may change the Owner or  Beneficiary  at any time. If the Owner is a natural
person,  you may change the  Annuitant  prior to the Payout Start Date.  Once we
have  received a  satisfactory  written  request  for an Owner,  Beneficiary  or
Annuitant  change,  the change will take effect as of the date you signed it. We
are not liable for any payment we make or other action we take before  receiving
any written request for a change from you.

You may not assign an interest in this  Contract as collateral or security for a
loan. However, you may assign periodic income payments under this Contract prior
to the Payout Start Date. We are bound by an assignment  only if it is signed by
the  assignor and filed with us. We are not  responsible  for the validity of an
assignment.

If the sole surviving Owner dies prior to the Payout Start Date, the Beneficiary
becomes the new Owner.  If the sole surviving  Owner dies after the Payout Start
Date,  the  Beneficiary  becomes the new Owner and will  receive any  subsequent
guaranteed income payments.

If more than one person is designated as Owner:

o    Owner as used in this Contract refers to all people named as Owners, unless
     otherwise indicated;

o    any request to exercise ownership rights must be signed by all Owners; and

o    on the death of any person who is an Owner,  the surviving  person(s) named
     as Owner will continue as Owner.


Annuitant The Annuitant is the person named on the Annuity Data Page, but may be
changed  by the  Owner,  as  described  above.  The  Annuitant  must be a living
individual.  If the  Annuitant  dies prior to the  Payout  Start  Date,  the new
Annuitant will be:

o        the youngest Owner; otherwise,

o        the youngest Beneficiary.


Beneficiary The Beneficiary is the person(s) named on the Annuity Data Page, but
may be  changed  by the  Owner,  as  described  above.  We  will  determine  the
Beneficiary  from the most recent written  request we have received from you. If
you do not name a Beneficiary or if the  Beneficiary  named is no longer living,
the Beneficiary will be:

o        your spouse if living; otherwise,

o        your children equally if living; otherwise,

o        your estate.

The  Beneficiary may become the Owner under the  circumstances  described in the
Owner provision above.



<PAGE>



The Beneficiary may assign benefits under the Contract, as described above, once
they are payable to the Beneficiary. We are bound by an assignment only if it is
signed  by the  assignor  and  filed  with us.  We are not  responsible  for the
validity of an assignment.


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

ACCUMULATION PHASE
- ------------------------------------------------------------------------------


Accumulation  Phase Defined The "Accumulation  Phase" is the first of two phases
during your  Contract.  The  Accumulation  Phase begins on the issue date of the
Contract  stated on the Annuity Data Page.  This phase will  continue  until the
Payout Start Date unless the Contract is terminated before that date.


Contract Year "Contract Year" is the one year period beginning on the issue date
of the Contract and on each anniversary of the issue date.


Investment  Alternatives The "Investment  Alternatives"  are the Sub-accounts of
the  Variable  Account and any Fixed  Account  Options.  We reserve the right to
limit the availability of the Investment Alternatives.


Credit  Enhancement A "Credit  Enhancement"  will be allocated to the Investment
Alternatives  you  selected  at the  time of the  purchase  payment.  It will be
allocated  among the  Investment  Alternatives  in the same  proportions  as the
purchase payment.  The amount of your Credit  Enhancement will be the percentage
of your  purchase  payment  indicated on the Annuity  Data Page.  On every fifth
Anniversary Date (e.g., 5th, 10th, 15th, etc.) you will receive an additional 2%
Credit  Enhancement  on your Contract  Value.  Each Credit  Enhancement  will be
allocated  among the Investment  Alternatives  in the same  proportion  that the
value in each  Investment  Alternative  currently  bears to your Contract Value,
except that any portion of the Credit Enhancement  corresponding to the value in
any  Fixed  Account  Option  will  instead  be  allocated  to the  money  market
sub-account.  We do not consider Credits to be an investment in the Contract for
income tax purposes.


Purchase Payments Purchase payments are initial and subsequent  payments made by
you, and do not include any Credit Enhancement.  The initial purchase payment is
shown on the Annuity Data Page. You may make subsequent purchase payments during
the  Accumulation  Phase. The number of purchase  payments is unlimited.  We may
limit the amount of each  subsequent  purchase  payment that we will accept to a
minimum of $500 and a maximum of $1,000,000.

We will invest the purchase payments in the Investment  Alternatives you select.
You may allocate any portion of your purchase  payment in whole percents from 0%
to 100% or in exact dollar  amounts to any of the Investment  Alternatives.  The
total allocation must equal 100%.

The  allocation  of the initial  purchase  payment is shown on the Annuity  Data
Page.  Allocation of each  subsequent  purchase  payment will be the same as the
allocation  for  the  most  recent  purchase   payment  unless  you  change  the
allocation. You may change the allocation of subsequent purchase payments at any
time,  without charge,  simply by giving us written  notice.  Any change will be
effective at the time we receive the notice.


Variable Account The "Variable  Account" for this Contract is the Glenbrook Life
and Annuity Company  Separate  Account A. This account is a separate  investment
account to which we allocate  assets  contributed  under this and certain  other
contracts.  These assets will not be charged with  liabilities  arising from any
other business we may have.


Variable  Sub-accounts The Variable Account is divided into  Sub-accounts.  Each
Sub-account  invests  solely in the shares of the mutual  fund  underlying  that
Sub-account.


<PAGE>




Fixed Account Options The Fixed Account options are the Guarantee Periods of the
Guaranteed Maturity Fixed Account.


Guaranteed  Maturity  Fixed  Account The  Guaranteed  Maturity  Fixed Account is
divided into Guarantee Periods. A Guarantee Period is identified by the date the
Guarantee Period begins and the duration of the Guarantee  Period.  You create a
Guarantee Period when:

o    you make a purchase payment; or

o    you select a new Guarantee Period after the prior Guarantee Period expires;
     or

o    you  transfer  an  amount  from an  existing  Sub-account  of the  Variable
     Account,  from another  Guarantee  Period of the Guaranteed  Maturity Fixed
     Account, or from any Fixed Account Options.

You must select the  Guarantee  Period for all purchase  payments and  transfers
allocated  to the  Guaranteed  Maturity  Fixed  Account.  If you do not select a
Guarantee  Period for a purchase  payment or  transfer,  we will assign the same
period(s) as used for the most recent purchase  payment.  Guarantee  Periods are
offered at our discretion and may range from one to ten years. We may change the
Guarantee Periods available for future purchase payments or transfers  allocated
to the Guaranteed Maturity Fixed Account.

We will  mail you a notice  prior to the  expiration  of each  Guarantee  Period
outlining the options available at the end of the Guarantee  Period.  During the
30 day period after a Guarantee Period expires you may:

o    take no action and we will  automatically  apply the Guarantee Period value
     to a Guarantee  Period of the same  duration as the  Guarantee  Period that
     just expired to be  established  on the day the previous  Guarantee  Period
     expired; or

o    notify us to apply the Guarantee Period value to a new Guarantee  Period(s)
     to be established on the day the previous Guarantee Period expired; or

o    notify us to apply the  Guarantee  Period value to any  Sub-account  of the
     Variable Account on the day we receive the notification; or

o    receive a portion of the  Guarantee  Period  value or the entire  Guarantee
     Period value through a partial or full  withdrawal that is not subject to a
     Market Value Adjustment;  however, a Withdrawal Charge and taxes may apply.
     In this case, the amount withdrawn will be deemed to have been withdrawn on
     the day the Guarantee Period expired.


Crediting  Interest We credit  interest  daily to money  allocated  to the Fixed
Account  options at a rate which compounds over one year to the interest rate we
guaranteed when the money was allocated.  We will credit interest to the initial
purchase  payment  including Credit  Enhancement  allocated to any Fixed Account
Option from the issue  date.  We will credit  interest  to  subsequent  purchase
payments  including Credit  Enhancements  allocated to any Fixed Account Options
from the date we receive them at a rate declared by us. We will credit  interest
to transfers to the Guaranteed Maturity Fixed Account from the date the transfer
is made.  The minimum  guaranteed  interest  rate, if any, for any Fixed Account
Options is shown on the Annuity Data Page.


Transfers  Prior to the Payout  Start Date,  you may  transfer  amounts  between
Investment  Alternatives.  You may make 12 transfers  per Contract  Year without
charge.  Each  transfer  after the 12th  transfer  in any  Contract  Year may be
assessed  a  $10  transfer   fee.   Transfers   are  subject  to  the  following
restrictions:

o    Any  transfer  from a Guarantee  Period of the  Guaranteed  Maturity  Fixed
     Account  will be subject to a Market Value  Adjustment  unless the transfer
     occurs during the 30 day period after the Guarantee Period expires.



<PAGE>



o    We reserve the right to limit the number of transfers in any Contract  Year
     or to refuse any transfer request for an Owner or certain Owners if, in our
     sole discretion, we believe that:

     o    excessive  trading  by such  Owner or  Owners or a  specific  transfer
          request or group of transfer requests may have a detrimental effect on
          Unit  Values or the share  prices of the  underlying  mutual  funds or
          would be to the disadvantage of other Contract Owners; or

     o    We are informed by one or more of the underlying mutual funds that the
          purchase  or  redemption  of shares  is to be  restricted  because  of
          excessive  trading or a specific  transfer  or group of  transfers  is
          deemed  to have a  detrimental  effect  on share  prices  of  affected
          underlying mutual funds.

     Such restrictions may be applied in any manner which is reasonably designed
     to prevent any use of the transfer right which is considered by us to be to
     the disadvantage of the other Contract Owners.

We reserve the right to waive the transfer  fees and  restrictions  contained in
this Contract.


Contract Value On the issue date of the Contract,  the "Contract Value" is equal
to the initial  purchase  payment plus the Credit  Enhancement.  After the issue
date, the "Contract Value" is equal to the sum of:

o        the number of  Accumulation  Units you hold in each  Sub-account of the
         Variable  Account  multiplied by the  Accumulation  Unit Value for that
         Sub-account on the most recent Valuation Date; plus

o        the total value you have in any Fixed Account Options

If you withdraw the entire Contract Value,  you may receive an amount greater or
less than the Contract  Value  because a Market Value  Adjustment,  a Withdrawal
Charge, and a premium tax charge may apply.


Valuation  Period and Valuation  Date A "Valuation  Period" is the time interval
between the  closing of the New York Stock  Exchange  on  consecutive  Valuation
Dates.  A "Valuation  Date" is any date the New York Stock  Exchange is open for
trading.


Accumulation  Units and Accumulation  Unit Value Amounts which you allocate to a
Sub-account of the Variable Account are used to purchase  Accumulation  Units in
that Sub-account. The Accumulation Unit Value for each Sub-account at the end of
any Valuation Period is calculated by multiplying the Accumulation Unit Value at
the end of the immediately  preceding  Valuation Period by the Sub-account's Net
Investment Factor for the Valuation Period.  The Accumulation Unit Values may go
up or down. Additions or transfers to a Sub-account of the Variable Account will
increase the number of Accumulation  Units for that Sub-account.  Withdrawals or
transfers from a Sub-account of the Variable Account will decrease the number of
Accumulation Units for that Sub-account.


Net Investment  Factor For each  Sub-account of the Variable  Account,  the "Net
Investment  Factor"  for a  Valuation  Period is (A)  divided by (B),  minus (C)
where:

(A)  is the sum of:

     (1)  the net asset  value  per  share of the  mutual  fund  underlying  the
          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 mutual fund underlying the Sub-account  during the current
          Valuation Period.

(B)  is the net  asset  value  per  share  of the  mutual  fund  underlying  the
     Sub-account determined as of the end of the immediately preceding Valuation
     Period.



<PAGE>



(C)  is  the  sum  of the  annualized  Administrative  Expense  Charge  and  the
     annualized  Mortality and Expense Risk Charge divided by the number of days
     in the current  calendar year and then multiplied by the number of calendar
     days in the current Valuation Period.

Charges The charges for this Contract  include  Administrative  Expense Charges,
Mortality  and Expense Risk  Charges,  Contract  Maintenance  Charges,  transfer
charges,  and any  applicable  taxes.  If a withdrawal is made, the Contract may
also be subject to a Withdrawal Charge and a Market Value Adjustment.


Administrative Expense Charge The annualized  Administrative Expense Charge will
never be greater than 0.10%. (See Net Investment Factor for a description of how
this charge is applied.)


Mortality  and Expense  Risk Charge The  annualized  Mortality  and Expense Risk
Charge  will never be  greater  than  1.40%.  (See Net  Investment  Factor for a
description of how this charge is applied.)

Our actual mortality and expense experience will not adversely affect the dollar
amount of variable benefits or other  contractual  payments or values under this
Contract.


Contract  Maintenance  Charge  Prior  to  the  Payout  Start  Date,  a  Contract
Maintenance  Charge will be deducted from your  Contract  Value on each Contract
anniversary.  The charge is only deducted from the  Sub-accounts of the Variable
Account.  The charge will be deducted on a pro-rata basis from each  Sub-account
of the Variable Account. A full Contract  Maintenance Charge will be deducted if
the Contract is  terminated on any date other than a Contract  anniversary.  The
annualized charge will never be greater than $35 per Contract Year. The Contract
Maintenance Charge will be waived if total purchase payments are $50,000 or more
or if all  money is  allocated  to the Fixed  Account  options  on the  Contract
anniversary.

After the Payout Start Date the Contract  Maintenance Charge will be deducted in
equal parts from each income payment.  The Contract  Maintenance  Charge will be
waived if the  Contract  Value on the Payout Start Date is $50,000 or more or if
all payments are Fixed Amount Income Payments.


Taxes Any premium tax relating to this  Contract may be deducted  from  purchase
payments or the Contract Value when the tax is incurred or at a later time.


Withdrawal  You have the right to withdraw part or all of your Contract Value at
any time during the  Accumulation  Phase. A withdrawal  must be at least $50. If
any withdrawal reduces the Contract Value to less than $1,000, we will treat the
request as a withdrawal of the entire Contract Value. If you withdraw the entire
Contract Value, the Contract will terminate.

You must  specify the  Investment  Alternative(s)  from which you wish to make a
withdrawal.  When you make a withdrawal,  your Contract Value will be reduced by
the  amount  paid to you and any  applicable  Withdrawal  Charge,  Market  Value
Adjustment,  and taxes. A Contract  Maintenance  Charge will also be deducted if
the Contract is terminated.  Any Withdrawal Charge will be waived on withdrawals
taken to satisfy IRS minimum  distribution  rules. This waiver is permitted only
for withdrawals which satisfy distributions resulting from this Contract.


Free  Withdrawal  Amount During the first  Contract  Year,  the Free  Withdrawal
Amount equals 15% of your initial  purchase  payment.  Each subsequent  Contract
Year the Free Withdrawal  Amount is equal to 15% of the Contract Value as of the
beginning of that  Contract  Year.  Each Contract Year you may withdraw the Free
Withdrawal Amount without any Withdrawal Charge or Market Value Adjustment.  Any
Free Withdrawal  Amount which is not withdrawn in a year may not be carried over
to increase the Free Withdrawal Amount available in a subsequent year.




<PAGE>



Withdrawal  Charge  Withdrawals in excess of the Free Withdrawal  Amount will be
subject to a Withdrawal Charge as follows:

         Payment Year:     1    2    3    4    5    6    7    8   9 and  Later

         Percentage:       8%   8%   7%   7%   6%   5%   4%   3%  0%


To  determine  the  Withdrawal  Charge,  we assume that  purchase  payments  are
withdrawn first,  beginning with the oldest payment.  When all purchase payments
have been withdrawn,  additional  withdrawals  will not be assessed a Withdrawal
Charge.

For each  purchase  payment  withdrawal,  the  "Payment  Year"  in the  table is
measured from the date we received the purchase  payment.  The Withdrawal Charge
is determined by multiplying  the percentage  corresponding  to the Payment Year
times that part of each  purchase  payment  withdrawal  that is in excess of the
Free Withdrawal Amount.


Market  Value  Adjustment  Activities  in a Guarantee  Period of the  Guaranteed
Maturity  Fixed  Account  that may be subject to a Market Value  Adjustment  are
withdrawals in excess of the Free Withdrawal Amount, transfers,  death benefits,
and amounts  applied to an income plan.  An activity will be subject to a Market
Value Adjustment unless:

o        it occurs during the 30 day period after a Guarantee Period expires; or

o        it is a transfer that is part of a Dollar Cost Averaging program.

A Market Value  Adjustment  is an increase or decrease in the amount  reflecting
changes  in  the  level  of  interest  rates  since  the  Guarantee  Period  was
established. As used in this provision, "Treasury Rate" means the U. S. Treasury
Note Constant  Maturity yield as reported in Federal  Reserve  Bulletin  Release
H.15. 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;

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

         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;

An adjustment factor is determined from the following formula:

                                .9 x (I - J) x N

The  amount  subject  to a  Market  Value  Adjustment  that is  deducted  from a
Guarantee  Period of the Guaranteed  Maturity Fixed Account is multiplied by the
adjustment factor to determine the amount of the Market Value Adjustment.

Any Market Value  Adjustment will be waived on withdrawals  taken to satisfy IRS
minimum  distribution rules. This waiver is permitted only for withdrawals which
satisfy distributions resulting from this Contract.


Death of Owner If you die prior to the Payout Start Date,  the new Owner will be
the surviving  Owner. If there is no surviving  Owner, the new Owner will be the
Beneficiary(ies). The new Owner will have the options described below.

1.   If the sole new Owner is your spouse:


<PAGE>




     a.   Your spouse may elect,  within 180 days of the date of your death,  to
          receive the Death Benefit described below in a lump sum.

     b.   Your spouse may elect,  within 180 days of the date of your death,  to
          receive an amount equal to the Death Benefit paid out under one of the
          Income Plans  described in the Payout Phase section.  The Payout Start
          Date must be within  one year of your date of death.  Income  Payments
          must be:

          i.   over the life of your spouse; or

          ii.  for a guaranteed number of payments from 5 to 30 years but not to
               exceed the life expectancy of your spouse; or

          iii. Over the life of your spouse with a guaranteed number of payments
               from 5 to 30 years but not to exceed the life  expectancy of your
               spouse.

     c.   If your  spouse  does not elect one of the  options  above,  then your
          spouse may continue the Contract in the  Accumulation  Phase as if the
          death  had  not  occurred.   If  the  Contract  is  continued  in  the
          Accumulation Phase, the following conditions apply:

          o    On the day the Contract is continued,  the Contract Value will be
               the  Death  Benefit  as  determined  at the end of the  Valuation
               Period during which we received due proof of death.

          o    The surviving  spouse may make a single  withdrawal of any amount
               within  one  year  of the  date  of  death  without  incurring  a
               Withdrawal Charge.

          o    Prior  to  the  Payout  Start  Date,  the  Death  Benefit  of the
               continued Contract will be the greater of:

          o    the  sum  of  all  purchase  payments  reduced  by  a  withdrawal
               adjustment, as defined in the Death Benefit provision; or

               o    the  Contract  Value  on the  date we  determine  the  Death
                    Benefit; or

               o    the Contract Value on each Death Benefit  Anniversary  prior
                    to the date we determine the Death Benefit, increased by any
                    purchase payments made since that Death Benefit  Anniversary
                    and reduced by a  withdrawal  adjustment,  as defined in the
                    Death Benefit provision.

2.   If the new Owner is not your spouse but is a Natural Person,  then this new
     Owner has the following options:


     a.   The new Owner may elect, within 180 days of the date of your death, to
          receive the death benefit described below in a lump sum.

     b.   The new Owner may elect, within 180 days of the date of your death, to
          receive an amount equal to the Death Benefit paid out under one of the
          Income Plans  described in the Payout Phase section.  The Payout Start
          Date must be within  one year of your date of death.  Income  Payments
          must be:

          i.   over the life of the new Owner; or

          ii.  for a guaranteed number of payments from 5 to 30 years but not to
               exceed the life expectancy of the new Owner; or

          iii. Over  the  life of the new  Owner  with a  guaranteed  number  of
               payments from 5 to 30 years but not to exceed the life expectancy
               of the new Owner.


<PAGE>



     c.   The new Owner may elect to receive the  Settlement  Value payable in a
          lump sum within 5 years of your date of death.

3.   If the new Owner is a corporation or other non-Natural Person:


     a.   The  non-natural  Owner may elect,  within 180 days of your death,  to
          receive the Death Benefit in a lump sum.

     b.   The  non-natural  Owner  may elect to  receive  the  Settlement  Value
          payable in a lump sum within 5 years of your date of death.

If any new Owner is a non-Natural  Person,  all new Owners will be considered to
be non-Natural Persons for the above purposes.

If the new Owner who is not your spouse does not make one of the above described
elections,  the Settlement Value must be withdrawn by the new Owner on or before
the mandatory  distribution date 5 years after your date of death.  Under any of
these options, all ownership rights are available to the new Owner from the date
of your  death to the date on which the Death  Benefit  or  Settlement  Value is
paid. We reserve the right to extend beyond 180 days the period when we will pay
the Death Benefit.


Death of Annuitant If the  Annuitant who is not also the Owner dies prior to the
Payout Start Date,  the Owner must elect an applicable  option listed below.  If
the option  selected is 1(a) or 1(b)(ii)  below,  the new Annuitant  will be the
youngest Owner, unless the Owner names a different Annuitant.

1.   If the Owner is a Natural Person:


     a.   The Owner may choose to continue this Contract as if the death had not
          occurred; or

     b.   If we  receive  due proof of death  within 180 days of the date of the
          Annuitant's death, then the Owner may alternatively choose to:

          i.   Receive the Death Benefit in a lump sum; or

          ii.  Apply the Death Benefit to an Income Plan which must begin within
               one year of the date of death.

2.   If the Owner is a non-Natural Person:

     a.   The  non-natural  Owner may elect,  within 180 days of the Annuitant's
          date of death, to receive the Death Benefit in a lump sum; or

     b.   The  non-natural  Owner  may elect to  receive  the  Settlement  Value
          payable in a lump sum within 5 years of the Annuitant's date of death.

If the non-natural Owner does not make one of the above described elections, the
Settlement  Value must be  withdrawn by the  non-natural  Owner on or before the
mandatory distribution date 5 years after the Annuitant's death.

Under any of these options, all ownership rights are available to the Owner from
the date of the  Annuitant's  death to the date on which  the Death  Benefit  or
Settlement  Value is paid.  We reserve  the right to extend  beyond 180 days the
period when we will pay the Death Benefit.


Death Benefit  Except as defined above when the surviving  spouse  continues the
Contract,  prior to the Payout  Start  Date,  the Death  Benefit is equal to the
greatest of the following Death Benefit alternatives:



<PAGE>



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

o    the Contract Value on the date we determine the Death Benefit; or

o    the amount that would have been  payable in the event of a full  withdrawal
     of the Contract Value on the date we determine the Death Benefit; or

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

The first Death Benefit Anniversary is the 8th Contract anniversary.  Subsequent
Death Benefit Anniversaries are those Contract  anniversaries that are multiples
of 8 Contract Years, beginning with the 16th Contract anniversary.  For example,
the 8th, 16th, and 24th 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)  = the withdrawal amount.

     (b)  = the Contract Value immediately prior to the withdrawal.

     (c)  = the value of the applicable  Death Benefit  alternative  immediately
          prior to the withdrawal.

We will  determine the value of the Death Benefit as of the end of the Valuation
Period  during  which we receive a  complete  request  for  payment of the Death
Benefit. A complete request includes due proof of death.


Settlement  Value The Settlement  Value is the same amount that would be paid in
the event of a full  withdrawal  of the Contract  Value.  We will  calculate the
Settlement  Value  at the  end of  the  Valuation  Period  coinciding  with  the
requested distribution date for payment or on the mandatory distribution date of
5 years after the date of death, whichever is earlier.


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

PAYOUT PHASE
- ------------------------------------------------------------------------------


Payout Phase  Defined The "Payout  Phase" is the second of the two phases during
your Contract. During this phase the Contract Value adjusted by any Market Value
Adjustment  and less any  applicable  taxes is applied  to the  Income  Plan you
choose and is paid out as provided in that plan.

The Payout Phase begins on the Payout Start Date. It continues until we make the
last payment as provided by the Income Plan chosen.


Payout  Start  Date The  "Payout  Start  Date" is the  date the  Contract  Value
adjusted by any Market Value Adjustment and less any applicable taxes is applied
to an Income  Plan.  The  anticipated  Payout Start Date is shown on the Annuity
Data Page.  You may  change  the Payout  Start Date by writing to us at least 30
days prior to this date.

The Payout Start Date must be on or before the later of:

o        the Annuitant's 90th birthday; or

o        the 10th anniversary of the Contract's issue date.




<PAGE>



Income  Plans An "Income  Plan" is a series of payments on a scheduled  basis to
you or to another  person  designated  by you. The Contract  Value on the Payout
Start Date  adjusted  by any Market  Value  Adjustment  and less any  applicable
taxes, will be applied to your Income Plan choice from the following list:

1.   Life Income with Guaranteed Payments.  We will make payments for as long as
     the Annuitant  lives.  If the Annuitant dies before the selected  number of
     guaranteed  payments  have been made, we will continue to pay the remainder
     of the guaranteed payments.

2.   Joint and  Survivor  Life Income  with  Guaranteed  Payments.  We will make
     payments for as long as either the Annuitant or joint  Annuitant,  named at
     the time of Income Plan  selection,  lives.  If both the  Annuitant and the
     joint Annuitant die before the selected number of guaranteed  payments have
     been  made,  we  will  continue  to pay  the  remainder  of the  guaranteed
     payments.

3.   Guaranteed Number of Payments. We will make payments for a specified number
     of months  beginning on the Payout Start Date. These payments do not depend
     on the Annuitant's  life. The number of months guaranteed may be from 60 to
     360.  Income  payments  for  less  than  120  months  may be  subject  to a
     Withdrawal Charge.

We reserve the right to make available other Income Plans.


Income Payments  Income payment amounts may be Variable Amount Income  Payments,
Fixed Amount Income  Payments,  or both. The method of  calculating  the initial
payment is  different  for the two types of payments.  The Contract  Maintenance
Charge will be deducted in equal payments from each income payment. The Contract
Maintenance Charge will be waived if the Contract Value on the Payout Start Date
is $50,000 or more or if all payments are Fixed Amount Income Payments.


Variable  Amount Income  Payments  Variable  Amount Income Payments will vary to
reflect the  performance  of the  Variable  Account.  The portion of the initial
income  payment based upon a particular  Variable  Sub-account  is determined by
applying  the amount of the  Contract  Value in that  Sub-account  on the Payout
Start Date, less any applicable  premium tax, to the appropriate  value from the
Income Payment  Table.  This portion of the initial income payment is divided by
the Annuity Unit Value on the Payout Start Date for that Variable Sub-account to
determine the number of Annuity Units from that  Sub-account  which will be used
to determine  subsequent  income  payments.  Unless  transfers  are made between
Sub-accounts,  each subsequent income payment from that Sub-account will be that
number of Annuity Units times the Annuity Unit Value for the Sub-account for the
Valuation Date on which the income payment is made.


Annuity Unit Value The Annuity Unit Value for each  Sub-account  of the Variable
Account at the end of any Valuation Period is calculated by:

o    multiplying the Annuity Unit Value at the end of the immediately  preceding
     Valuation  Period by the  Sub-account's  Net  Investment  Factor during the
     period; and then

o    dividing  the  result by 1.000  plus the  assumed  investment  rate for the
     period.  The assumed  investment rate is an effective annual rate of 3%. We
     reserve the right to offer an assumed investment rate greater than 3%.


Fixed Amount Income  Payments The income  payment amount derived from any monies
allocated to the Fixed Account options during the  Accumulation  Phase are fixed
for the  duration  of the  Income  Plan.  The Fixed  Amount  Income  Payment  is
calculated  by applying the portion of the Contract  Value in the Fixed  Account
options on the Payout Start Date,  adjusted by any Market Value  Adjustment  and
less any applicable  premium tax, to the greater of the  appropriate  value from
the Income Payment Table selected or such other value as we are offering at that
time.




<PAGE>



Annuity Transfers After the Payout Start Date, no transfers may be made from the
Fixed Amount Income  Payment.  Transfers  between  Sub-accounts  of the Variable
Account,  or from the Variable  Amount Income Payment to the Fixed Amount Income
Payment may not be made for six months  after the Payout  Start Date.  Transfers
may be made once every six months thereafter.


Payout Terms and  Conditions  The income  payments are subject to the  following
terms and conditions:

o    If the  Contract  Value is less than  $2,000,  or not  enough to provide an
     initial payment of at least $20, we reserve the right to:

     o    change the payment frequency to make the payment at least $20; or

     o    terminate the Contract and pay you the Contract  Value adjusted by any
          Market Value Adjustment and less any applicable taxes in a lump sum.

     o    If we do not  receive a written  choice of an Income  Plan from you at
          least 30 days before the Payout  Start  Date,  the Income Plan will be
          Life Income with Guaranteed Payments for 120 months.

o    If you choose an Income Plan which  depends on any  person's  life,  we may
     require:

     o    proof of age and sex before income payments begin; and

     o    proof that the  Annuitant or joint  Annuitant is still alive before we
          make each payment.

o    After the  Payout  Start  Date,  the  Income  Plan  cannot be  changed  and
     withdrawals  cannot be made unless income  payments are being made from the
     Variable Account under Income Plan 3. You may terminate the income payments
     being made from the  Variable  Account  under Income Plan 3 at any time and
     withdraw their value, subject to Withdrawal Charges.

o    If any Owner dies during the Payout Phase,  the remaining  income  payments
     will be paid to the successor Owner as scheduled.


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

INCOME PAYMENT TABLES
- ------------------------------------------------------------------------------


The initial income payment will be at least the amount based on the adjusted age
of the  Annuitant(s)  and the tables below,  less any federal income taxes which
are  withheld.  The  adjusted  age is the actual  age on the  Payout  Start Date
reduced  by one year for each six full  years  between  January  1, 1983 and the
Payout Start Date.  Income payments for ages and guaranteed  payment periods not
shown below will be determined on a basis consistent with that used to determine
those that are shown.  The Income  Payment Tables are based on 3.0% interest and
the 1983a Annuity Mortality Tables.




<PAGE>


<TABLE>
<CAPTION>

Income Plan 1 - Life Income with Guaranteed Payments for 120 Months
============================================================================================================================

                           Monthly Income Payment for each $1,000 Applied to this Income Plan
- ----------------------------------------------------------------------------------------------------------------------------
- ------------------- ---------------------- ---------------- ---------------------- ---------------- ------------------------

  Annuitant's                                Annuitant's                             Annuitant's
     Adjusted         Male     Female         Adjusted        Male     Female         Adjusted        Male    Female
       Age                                       Age                                     Age
- ------------------- ---------------------- ---------------- ---------------------- ---------------- ------------------------
- ------------------- ---------------------- ---------------- ---------------------- ---------------- ------------------------

<S>    <C>             <C>       <C>               <C>         <C>      <C>              <C>          <C>      <C>
       35              $3.43     $3.25            49           $4.15    $3.82             63           $5.52    $4.97
       36               3.47      3.28            50            4.22     3.88             64            5.66     5.09
       37               3.51      3.31            51            4.29     3.94             65            5.80     5.22
       38               3.55      3.34            52            4.37     4.01             66            5.95     5.35
       39               3.60      3.38            53            4.45     4.07             67            6.11     5.49
       40               3.64      3.41            54            4.53     4.14             68            6.27     5.64
       41               3.69      3.45            55            4.62     4.22             69            6.44     5.80
       42               3.74      3.49            56            4.71     4.29             70            6.61     5.96
       43               3.79      3.53            57            4.81     4.38             71            6.78     6.13
       44               3.84      3.58            58            4.92     4.46             72            6.96     6.31
       45               3.90      3.62            59            5.02     4.55             73            7.13     6.50
       46               3.96      3.67            60            5.14     4.65             74            7.31     6.69
       47               4.02      3.72            61            5.26     4.75             75            7.49     6.88
       48               4.08      3.77            62            5.39     4.86
=================== ====================== ================ ====================== ================ ========================

Income Plan 2 - Joint and Survivor Life Income with Guaranteed Payments for 120 Months
==============================================================================================================================

                            Monthly Income Payment for each $1,000 Applied to this Income Plan
- ------------------------------------------------------------------------------------------------------------------------------
- -------------------- ---------------------------------------------------------------------------------------------------------

                     Female Annuitant's Adjusted Age
- -------------------- ---------------------------------------------------------------------------------------------------------
- -------------------- ---------- ------------ ----------- ---------- ---------- ---------- ---------- --------- ---------------

      Male
   Annuitant's          35         40        45          50         55           60         65           70         75
     Adjusted
       Age
- -------------------- ---------- ------------ ----------- ---------- ---------- ---------- ---------- --------- ---------------
- -------------------- ---------- ---------- ---------- ---------- ----------- ---------- ------------ ----------- -------------

       35             $3.09      $3.16      $3.23      $3.28      $3.32       $3.36      $3.39        $3.40       $3.42
       40              3.13       3.22       3.31       3.39       3.46        3.51       3.56         3.59        3.61
       45              3.17       3.28       3.39       3.50       3.60        3.69       3.76         3.81        3.85
       50              3.19       3.32       3.45       3.60       3.74        3.87       3.98         4.07        4.14
       55              3.21       3.35       3.51       3.68       3.87        4.06       4.23         4.37        4.48
       60              3.23       3.37       3.55       3.75       3.98        4.23       4.47         4.70        4.88
       65              3.24       3.39       3.57       3.80       4.07        4.37       4.71         5.04        5.34
       70              3.24       3.40       3.59       3.83       4.13        4.48       4.90         5.36        5.81
       75              3.25       3.41       3.61       3.86       4.17        4.56       5.04         5.61        6.22
==================== ========== ========== ========== ========== =========== ========== ============ =========== =============
</TABLE>

Income Plan 3 - Guaranteed Number of Payments
================================= =============================================

                                  Monthly Income Payment for each
    Specified Period              $1,000 Applied to this Income Plan
- --------------------------------- ---------------------------------------------
- --------------------------------- ---------------------------------------------

        10 Years                                    $9.61
        11 Years                                     8.86
        12 Years                                     8.24
        13 Years                                     7.71
        14 Years                                     7.26
        15 Years                                     6.87
        16 Years                                     6.53
        17 Years                                     6.23
        18 Years                                     5.96
        19 Years                                     5.73
        20 Years                                     5.51
================================= ==============================================



<PAGE>



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

GENERAL PROVISIONS
- ------------------------------------------------------------------------------


The Entire Contract The entire contract  consists of this Contract,  any written
application, and any endorsements and riders.

All  statements  made  in a  written  application  are  representations  and not
warranties. No statement will be used by us in defense of a claim or to void the
Contract unless it is included in a written application.

We may not modify this Contract  without your consent,  except to make it comply
with any  changes  in the  Internal  Revenue  Code or as  required  by any other
applicable law. Only our officers may change this Contract.  No other individual
may do this.


Incontestability  We will not contest the  validity of this  Contract  after the
issue date.


Misstatement of Age or Sex If any age or sex has been misstated, we will pay the
amounts which would have been paid at the correct age and sex.

If we find the  misstatement  of age or sex after the income  payments begin, we
will:

o    pay all amounts  underpaid  including  interest  calculated at an effective
     annual rate of 6%; or

o    stop payments until the total payments are equal to the corrected amount.


Annual  Statement At least once a year,  prior to the Payout Start Date, we will
send you a statement containing Contract Value information.  We will provide you
with  Contract  Value  information  at any time upon  request.  The  information
presented will comply with any applicable law.


Settlements  We may  require  that this  Contract be returned to us prior to any
settlement.  We must receive due proof of death of the Owner or Annuitant  prior
to settlement of a death claim.

Any full  withdrawal  or Death Benefit under this Contract will not be less than
the minimum benefits  required by any statute of the state in which the Contract
is delivered.


Deferment  of Payments We will pay any  amounts  due from the  Variable  Account
under this Contract within seven days, unless:

o    the New York Stock  Exchange  is closed for other  than usual  weekends  or
     holidays, or trading on such Exchange is restricted;

o    an emergency  exists as defined by the Securities and Exchange  Commission;
     or

o    the Securities and Exchange  Commission permits delay for the protection of
     Contract holders.

We reserve the right to postpone  payments or transfers  from the Fixed  Account
options for up to six months.  If we elect to postpone  payments  from the Fixed
Account for 30 days or more, we will pay interest as required by applicable law.
Any interest would be payable from the date the  withdrawal  request is received
by us to the date the payment is made.




<PAGE>



Variable Account  Modifications We reserve the right, subject to applicable law,
to make  additions  to,  deletions  from, or  substitutions  for the mutual fund
shares  underlying  the  Sub-accounts  of the  Variable  Account.  We  will  not
substitute  any shares  attributable  to your interest in a  Sub-account  of the
Variable  Account without notice to you and prior approval of the Securities and
Exchange  Commission,  to the extent  required by the Investment  Company Act of
1940, as amended.

We  reserve  the right to  establish  additional  Sub-accounts  of the  Variable
Account,  each of which would invest in shares of another  mutual fund.  You may
then   instruct  us  to  allocate   purchase   payments  or  transfers  to  such
Sub-accounts, subject to any terms set by us or the mutual fund.

In the event of any such  substitution or change,  we may by  endorsement,  make
such changes as may be necessary or appropriate to reflect such  substitution or
change.

If we deem it to be in the best  interests of persons having voting rights under
the  contracts,  the Variable  Account may be operated as a  management  company
under the Investment  Company Act of 1940, as amended or it may be  deregistered
under such Act in the event such registration is no longer required.



                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY
                               SEPARATE ACCOUNT A
                                  (REGISTRANT)

                            GLENBROOK ENHANCED CHOICE


         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, and him 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 Contract and to file the
same, with exhibit 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 7, 2000
                                Date



                                /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)

                            GLENBROOK ENHANCED CHOICE



         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, and him 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 Contract and to file the
same, with exhibit 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 7, 2000
                                      Date



                                      /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)

                            GLENBROOK ENHANCED CHOICE


         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, and
him 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
Contract  and to file the same,  with  exhibit  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 7, 2000
                                      Date



                                      /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)

                            GLENBROOK ENHANCED CHOICE


         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, and
him 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
Contract  and to file the same,  with  exhibit  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 7, 2000
                                      Date



                                      /s/ SAMUEL H. PILCH
                                      ---------------------
                                      Samuel H. Pilch
                                      Controller (Principal Accounting Officer)



<PAGE>






                                POWER OF ATTORNEY

             WITH RESPECT TO THE GLENBROOK LIFE AND ANNUITY COMPANY\
                               SEPARATE ACCOUNT A
                                  (REGISTRANT)

                            GLENBROOK ENHANCED CHOICE


         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, and
him 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
Contract  and to file the same,  with  exhibit  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 7, 2000
                                      Date



                                      /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)

                            GLENBROOK ENHANCED CHOICE


         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, his attorney-in-fact, with power of substitution, and
him 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
Contract  and to file the same,  with  exhibit  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 7, 2000
                                      Date



                                      /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)

                            GLENBROOK ENHANCED CHOICE


         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, and
him 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
Contract  and to file the same,  with  exhibit  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 7, 2000
                                      Date



                                      /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)

                            GLENBROOK ENHANCED CHOICE


         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,  and  him  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 Contract and to file the same, with exhibit
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 7, 2000
                                      Date



                                      /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)

                            GLENBROOK ENHANCED CHOICE



         Know all men by these presents that C. 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, and
him 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
Contract  and to file the same,  with  exhibit  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 7, 2000
                                      Date



                                       /s/ G. CRAIG WHITEHEAD
                                       -----------------------
                                       G. Craig Whitehead
                                       Assistant Vice President
                                       and Director





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