Document:

EXHIBIT 10.2

                             TAX SHARING AGREEMENT

                                     among

                                  Aetna Inc.,

                                     Spinco

                                      and

                      ING America Insurance Holdings, Inc.

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

                       Dated as of [            ], 2000

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                               TABLE OF CONTENTS

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                                                                           PAGE
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                                   ARTICLE 1
                                  DEFINITIONS

SECTION 1.01.  Definitions....................................................2

                                   ARTICLE 2
                     ADMINISTRATIVE AND COMPLIANCE MATTERS

SECTION 2.01.  Sole Tax Sharing Agreement....................................12
SECTION 2.02.  Designation of Agent..........................................13
SECTION 2.03.  Pre-Distribution Tax Period Returns...........................14

                                   ARTICLE 3
                       TAX RETURN MATTERS AND TAX SHARING

SECTION 3.01.  General.......................................................15
SECTION 3.02.  Estimated Payments............................................16
SECTION 3.03.  Certain Payments Upon Due Date................................16
SECTION 3.04.  Payment of Taxes at Year-End..................................17
SECTION 3.05.  Treatment of Adjustments......................................18
SECTION 3.06.  Carry-Backs from Post-Distribution Tax Periods and Certain
               Other Matters.................................................18
SECTION 3.07.  Additional Matters............................................19

                                   ARTICLE 4
                CERTAIN COVENANTS AND EMPLOYEE BENEFITS MATTERS

SECTION 4.01.  Spinco Covenants to Aetna.....................................19
SECTION 4.02.  Covenant Regarding Amendment of Returns.......................20
SECTION 4.03.  Certain Deductions Relating to Employee Benefits Matters......20

                                   ARTICLE 5
                                  INDEMNITIES

SECTION 5.01.  Indemnification of Parent Affiliates by Spinco Affiliates.....21
SECTION 5.02.  Indemnification of Spinco Affiliates by Parent Affiliates.....23
SECTION 5.03.  Treatment of Interim Payments and Refunds With Respect to,
               and Certain Other Matters Regarding, Covered Tax Items........24

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                                                                           PAGE
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SECTION 5.04.  Discharge of Indemnity........................................25
SECTION 5.05.  Treatment of Indemnification Payments.........................26
SECTION 5.06.  Certain Entities as Indemnitees...............................26
SECTION 5.07.  Non-Exclusivity of Remedies...................................26
SECTION 5.08.  Entitlements Under Certain Agreements.........................26

                                   ARTICLE 6
                                  SUBSIDIARIES

SECTION 6.01.  Performance...................................................27

                                   ARTICLE 7
                     ACCESS TO INFORMATION AND COOPERATION

SECTION 7.01.  Consultation and Cooperation..................................27
SECTION 7.02.  Corporate Records.............................................28
SECTION 7.03.  Provision of Information......................................28
SECTION 7.04.  Confidentiality...............................................29
SECTION 7.05.  Preservation of Privilege.....................................29
SECTION 7.06.  Certain Payroll- and Employee-Related Taxes...................30

                                   ARTICLE 8
                          TAX PROCEEDINGS AND CONSENT

SECTION 8.01.  Control Over Tax Proceedings..................................30
SECTION 8.02.  Notification of Claims........................................32
SECTION 8.03.  Settlement of Tax Proceedings.................................32

                                   ARTICLE 9
                                    PAYMENTS

SECTION 9.01.  Procedure for Making Payments.................................33

                                   ARTICLE 10
                                 MISCELLANEOUS

SECTION 10.01.  Authorization................................................33
SECTION 10.02.  Notices......................................................33
SECTION 10.03.  Amendments; No Waivers.......................................36
SECTION 10.04.  Expenses.....................................................37
SECTION 10.05.  Successors and Assigns; No Third Party Beneficiaries.........37
SECTION 10.06.  Governing Law................................................37

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                                                                           PAGE
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SECTION 10.07.  Counterparts; Effectiveness..................................37
SECTION 10.08.  Entire Agreement.............................................38
SECTION 10.09.  Dispute Resolution...........................................38
SECTION 10.10.  Jurisdiction.................................................38
SECTION 10.11.  Further Assurances...........................................39
SECTION 10.12.  Severability.................................................39
SECTION 10.13.  Survival.....................................................39
SECTION 10.14.  Captions.....................................................39
SECTION 10.15.  Specific Performance.........................................39

Schedule 1.01A   -  Certain Agreements Relating to Dispositions Effected by
                    AFS and Aetna International, Inc.
Schedule 1.01B   -  Assets Disposed of In Transactions Reportable Under Code
                    Section 1060
Schedule 5.01    -  Covered Tax Items

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                         FORM OF TAX SHARING AGREEMENT

     TAX SHARING AGREEMENT dated as of [___________], 2000 (this "Agreement")
among Aetna Inc., a Connecticut corporation ("Aetna"), Aetna U.S. Healthcare,
Inc., a Pennsylvania corporation ("Spinco"), and ING America Insurance
Holdings, Inc., a Delaware corporation ("Parent").

                             W I T N E S S E T H :
                             - - - - - - - - - -

     WHEREAS, Aetna and Parent have agreed that all outstanding shares of the
common stock of Spinco shall be distributed pro rata to Aetna's shareholders
(provided that all conditions precedent to the Distribution (as defined below)
have been satisfied), and, pursuant to an Agreement and Plan of Restructuring
and Merger dated as of July 19, 2000 (the "Merger Agreement") among Aetna,
Parent and ANB Acquisition Corp., a Connecticut corporation and a wholly owned
subsidiary of Parent ("Merger Sub"), Merger Sub shall be merged with and into
Aetna, as a result of which Aetna shall become a wholly owned subsidiary of
Parent (the "Merger");

     WHEREAS, for United States federal income tax purposes, it is intended
that the holders of the Aetna Common Stock be treated as having received the
cash consideration from Parent and the common stock of Spinco in redemption and
disposition of the Aetna Common Stock (as defined below);

     WHEREAS, Aetna and Spinco have entered into a Distribution Agreement dated
as of [_________], 2000 (the "Distribution Agreement"), to which this Agreement
is Exhibit C and in which Aetna and Spinco have set forth the principal
corporate transactions to be effected in connection with Aetna's distribution
to its stockholders of the common stock of Spinco and certain other matters
relating to the relationship and the respective rights and obligations of Aetna
and Spinco following the Merger;

     WHEREAS, pursuant to the Tax (as defined below) laws of various
jurisdictions, certain members of the Health Group (as defined below) presently
file certain Tax returns on an affiliated, consolidated, combined, unitary,
fiscal unit or other group (each such group, a "Consolidated Group") basis
(including as permitted by Section 1501 of the Internal Revenue Code of 1986,
as amended (the "Code")) with certain members of the Acquired Group (as defined
below); and

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     WHEREAS, Aetna, Parent and Spinco desire to set forth their agreement on,
among other things, the rights and obligations of Aetna, Spinco and their
respective Subsidiaries with respect to the handling and allocation of United
States federal, state and local and foreign Taxes, and various other Tax
matters.

     NOW, THEREFORE, the parties hereto agree as follows:

                                   ARTICLE 1
                                  DEFINITIONS

     SECTION 1.01. Definitions. (a) The following terms, as used herein, have
the following meanings:

     "Acquired Group" means, at any time, such Parent Affiliates as are
eligible to join with Aetna (or, in the case of a Combined New York-Illinois
Tax, with Combined New York-Illinois Parent) in the filing of (i) for Federal
Tax purposes, a consolidated Federal Tax Return, and (ii) for Combined State
Tax purposes, a Combined State Tax Return.

     "Aetna" has the meaning set forth in the recitals.

     "Aetna Common Stock" means the common stock, par value US$0.01 per share,
of Aetna.

     "Aetna Consolidated Group" means, at any time, (i) Aetna and each direct
and indirect Subsidiary (including predecessors and successors thereto) that is
eligible to join with Aetna in the filing of (A) for Federal Tax purposes, a
consolidated Federal Tax return, and (B) for the purposes of a Combined State
Tax that is not a Combined New York-Illinois Tax, a Combined State Tax return,
or (ii) for the purposes of a Combined New York-Illinois Tax, the Combined New
York-Illinois Parent and each Affiliate of Aetna that is eligible to join with
the Combined New York-Illinois Parent in the filing of a Combined New York-
Illinois Tax return.

     "Aetna International Disposition Agreements" means (i) the agreement(s)
pursuant to which Aetna International, Inc. sold or caused to be sold the stock
of Aetna Canada Holdings Limited to John Hancock Canadian Holdings Limited in
August, 1999, (ii) the agreement(s) pursuant to which Aetna International,
Inc., AE Five Inc. and Aetna Internacional y Compania S. de RL de CV sold or
caused to be sold the stock of Seguros Monterrey Aetna and Fianzas Monterrey
Aetna to New York Life International, Inc. in January, 2000, (iii) the

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agreement(s) pursuant to which Sul America Aetna Participacoes S.A. sold or
caused to be sold the stock of Brasilprev Prevedencia Privada S.A. to Principal
Financial Services Inc. in October 1999, and (iv) other agreements which are
set forth on Schedule 1.01A and pursuant to which AFS, Aetna International,
Inc. or any of their respective Subsidiaries sold or caused to be sold stock or
other equity interests in their subsidiaries.

     "Affiliate" means, with respect to any person, any other Person directly
or indirectly controlling, controlled by, or under common control with such
Person.

     "AFS" means Aetna Retirement Services, Inc., a Connecticut corporation.

     "After-Tax Amount" means, with respect to a payment, any additional amount
necessary to reflect the Tax gross-up required to make the recipient of such
payment whole at the appropriate applicable rate(s), taking into account the
present value of Tax benefits and detriments reasonably applied. Any present
value calculations made for purposes of this definition shall be based on
discounting at the Intercompany Interest Rate.

     "Agreement" has the meaning set forth in the recitals.

     "AmRe Agreements" means the agreement(s) pursuant to which Aetna Life &
Casualty Corp. sold or caused to be sold the stock of American Reinsurance
Company to Kohlberg, Kravis, Roberts & Co. in 1992.

     "AUSHC Agreements" means the agreements pursuant to which Aetna acquired
Aetna U.S. Healthcare, Inc. in July, 1996.

     "Code" has the meaning set forth in the recitals.

     "Combined New York-Illinois Parent" means (i) Aetna Life Insurance
Company, in the case of any tax payable to the State of Illinois with respect
to which one or more Spinco Affiliates are included in the filing of tax
Returns with one or more Parent Affiliates on a unitary basis, or (ii) Aetna
Life Insurance and Annuity Company, in the case of any New York insurance tax
payable to the State of New York with respect to which one or more Spinco
Affiliates are included in the filing of tax Returns with one or more Parent
Affiliates on a combined basis.

     "Combined New York-Illinois Tax" means (i) any tax payable to the State of
Illinois with respect to which one or more Spinco Affiliates are included in
the filing of tax Returns with one or more Parent Affiliates on a unitary
basis, or (ii) any New York insurance tax payable to the State of New York with
respect

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to which one or more Spinco Affiliates are included in the filing of tax
Returns with one or more Parent Affiliates on a combined basis.

     "Combined State Tax" means (i) with respect to each state or local taxing
jurisdiction within the United States, any income, franchise, premium or
similar tax payable to such state or local taxing jurisdiction in which one or
more Spinco Affiliates file tax returns with Aetna on a Consolidated Group
basis for purposes of such income, franchise, premium or similar tax, or (ii)
any Combined New York-Illinois Tax.

     "Combined State Tax Package Delivery Date" has the meaning set forth in
Section 3.04(a).

     "Confidentiality Agreement" means Confidentiality Agreement as such term
is defined in the Distribution Agreement.

     "Consolidated Group" has the meaning set forth in the recitals.

     "Contract-Based Tax Proceeding" means any Tax Proceeding brought or
arising under any of the Prior Deal Agreements, the AUSHC Agreements or the
Aetna International Disposition Agreements. For the avoidance of doubt, neither
a Spinco-Aetna Tax Proceeding nor a Taxing Authority Proceeding shall be
treated as a Contract-Based Tax Proceeding.

     "Covered Items Determination Date" has the meaning set forth in Section
5.01(c).

     "Covered Items Payment Date" has the meaning set forth in Section 5.01(c).

     "Covered Tax Item" has the meaning set forth in Section 5.01(c).

     "Distribution" means Distribution as such term is defined in the
Distribution Agreement.

     "Distribution Agreement" has the meaning set forth in the recitals.

     "Distribution Date" means Distribution Date as such term is defined in the
Distribution Agreement.

     "Distribution Documents" means Distribution Documents as such term is
defined in the Distribution Agreement.

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     "Effective Realization" (and the correlative term, "Effectively Realized")
means, with respect to a tax saving or tax benefit, the earliest to occur of
(i) the receipt by any Parent Affiliate or any Spinco Affiliate of cash from a
Taxing Authority reflecting such tax saving or tax benefit, or (ii) the
application of such tax saving or tax benefit to reduce (A) the tax liability
on a Return of any of such entities or of any Consolidated Group of which any
of such entities is a member, or (B) any other outstanding tax liability of any
of such entities or of any such Consolidated Group, which application shall,
for the avoidance of doubt, be treated as occurring on the due date (taking
into account all applicable and valid extensions of such date) for such Return
or the date on which the relevant amount is credited.

     "Employee Benefits Agreement" means the Employee Benefits Agreement dated
as of [___________], 2000 between Aetna and Spinco.

     "Event" has the meaning set forth in Section 3.06(b).

     "Federal Tax" means any tax imposed under Subtitle A of the Code.

     "Federal Tax Package Delivery Date" has the meaning set forth in Section
3.04(a).

     "Final Determination" means (i) with respect to Federal Taxes, a
"determination" as defined in Section 1313(a) of the Code or execution of an
Internal Revenue Service Form 870-AD and, with respect to taxes other than
Federal Taxes, any final determination of liability in respect of a Tax that,
under applicable law, is not subject to further appeal, review or modification
(through Tax Proceedings or otherwise), (ii) any final disposition of a Tax
issue by reason of the expiration of a statute of limitations (giving effect to
any extension or waiver thereof), or (iii) the payment of Tax with respect to
any item disallowed or adjusted by any Taxing Authority where Aetna and Spinco
Jointly Decide that no action should be taken to recoup such payment.

     "Health Combined State Tax Liability" means, with respect to any tax
period and any jurisdiction, an amount of Combined State Taxes determined in
accordance with the principles set forth in the definition of Health Federal
Tax Liability and comparable provisions under applicable law.

     "Health Federal Tax Liability" is intended by the parties to measure the
Health Group's standalone Federal Tax liability after applying limitations on
the use of the Health Group's Tax Assets in a manner that equitably reflects
such Assets' actual utilization in the consolidated Return of the Aetna
Consolidated

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Group. Specifically, Health Federal Tax Liability means, with respect to any
tax period, an amount equal to:

     (i) the sum of the Health Group's Federal Tax liability and any interest,
penalties and other additions to such taxes for such tax period computed (A) as
if the Health Group were not and never were part of the Aetna Consolidated
Group, but rather were a separate affiliated group of corporations filing a
consolidated Federal Tax return pursuant to Section 1501 of the Code, and (B)
without taking into account the limitations imposed by Federal Tax law through
the Treasury Regulations promulgated under Section 1502 of the Code (such
Regulations, "Consolidated Return Regulations") (such limitations,
"Consolidated Return Limitations") (the sum described in this clause (i)
constituting the "Health Standalone Liability"); as modified by

     (ii) such adjustments, without duplication, for such tax period as are
required to reflect any limitations imposed by the Federal Tax law on the
Health Group by reason of the inclusion of the members of the Health Group in
the Aetna Consolidated Group (the adjustments described in this clause (ii)
together constituting the "Health Limitations Adjustment").

     The following rules shall apply to the computation of the Health Federal
Tax Liability and shall be deemed to be an integral part of the definition of
the Health Federal Tax Liability:

     (1) For purposes of the calculation of the Health Standalone Liability, (x)
the highest rate of tax specified in Section 11(b) of the Code (or any other
similar rates applicable to specific types of income) shall be assumed to be the
only rates set forth in that subsection, (y) the tax positions taken, and the
elections and accounting methods used by, the Aetna Consolidated Group for the
tax period at issue and/or tax periods prior thereto shall be taken into
account, and (z) transactions between any member of the Health Group, on one
hand, and any member of the Acquired Group, on the other hand, shall not be
taken into account.

     (2) Without limiting the generality of paragraph (i) above, the
Consolidated Return Limitations shall include limitations relating to (x) the
utilization of net operating losses, foreign tax credits and separate return
limitation year tax items, (y) the treatment of life and non-life subgroups,
and (z) any separate treatment of insurance companies that are described in
Section 1504(b) of the Code.

     (3) Without limiting the generality of the definition of the Consolidated
Return Limitations, the calculation of the Health Standalone Liability shall
take into account, and the Health Group shall be entitled to utilize for
purposes of such

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calculation, among other things, any Tax Asset of the Health Group as though
the Health Group were a separate affiliated group that has existed and included
all relevant members for all relevant periods.

     (4) The Health Limitations Adjustment for a tax period shall be calculated
as an amount that reflects (x) the adjustment to the Health Standalone
Liability that shall be required in order for the Health Group to receive the
economic benefit of only such amounts of the Tax Assets or tax items as are
necessary to reflect the actual utilization in the consolidated return of the
Aetna Consolidated Group for such tax period, and (y) the excess loss accounts
or deferred intercompany gains or intercompany items of members of the Health
Group that are actually triggered during such tax period under the Consolidated
Return Regulations and are taken into account in the consolidated return of the
Aetna Consolidated Group.

     (5) In calculating the Health Limitations Adjustments, except to the
extent mutually agreed upon by Aetna and Spinco, the tax positions taken, and
the elections and accounting methods used shall be consistent with those (x)
used by the Aetna Consolidated Group for the tax period at issue and/or tax
periods prior thereto, and (y) used in the computation of the Health Standalone
Liability.

     (6) The parties hereto shall be permitted to invoke the dispute resolution
procedures under Section 10.09 with respect to any disagreement in the
methodology used in calculating Health Federal Tax Liability hereunder. For the
avoidance of doubt, this rule (6) is not intended to affect the application of
the third and fourth sentences of Section 2.03(b).

     "Health Group" means, at any time, such Spinco Affiliates as are eligible
to join with Aetna (or, in the case of a Combined New York-Illinois Tax, with
the Combined New York-Illinois Parent) in the filing of (i) for Federal Tax
purposes, a consolidated Federal Tax Return, and (ii) for Combined State Tax
purposes, a Combined State Tax Return.

     "Health Group Tax Liability" means, with respect to any tax period, the
sum of (i) the Health Federal Tax Liability, and (ii) the Health Combined State
Tax Liability.

     "Indemnitee" has the meaning set forth in Section 5.04.

     "Indemnitor" has the meaning set forth in Section 5.04.

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     "Intercompany Interest Rate" means 8% (compounded annually), or an
economically equivalent interest rate with respect to a compounding period that
is shorter than one year.

     "Jointly Decide" means, with respect to specified parties, arriving at a
prompt and timely decision to which each such party agrees after such party has
(i) received relevant information available to the other parties and (ii)
discussed with the other parties any relevant financial or other aspects of
such decision and any alternatives thereto raised by the parties. In the event
that the specified parties are unable to reach agreement on a matter on which
they Jointly Decide, (A) any party may invoke the dispute resolution procedures
set forth in Section 10.09 of this Agreement, or (B) the part(ies) that
disagree with a decision shall be deemed to have agreed with such decision if
one or more of the other parties furnish an indemnity, reasonably satisfactory
to the recipient(s) thereof, in respect of any Tax liability and the related
After-Tax Amount that may result from such decision (provided that the
determination as to whether an indemnity is reasonably satisfactory to the
recipient(s) thereof (x) may be subject to the dispute resolution procedures
set forth in Section 10.09 of this Agreement and (y) shall be based upon, among
other things, the scope of the indemnity and the financial credit of the
part(ies) furnishing the indemnity).

     "Lincoln Agreements" means the agreements pursuant to which Aetna Life
Insurance Company and Aetna Life Insurance and Annuity Company ceded domestic
life insurance businesses to, and effected related transactions with, Lincoln
National Life Insurance Company and Lincoln Life & Annuity Company of New York
in October, 1998.

     "Merger" has the meaning set forth in the recitals.

     "Merger Agreement" has the meaning set forth in the recitals.

     "Merger Sub" has the meaning set forth in the recitals.

     "Miscellaneous Agreements" means (i) the agreement(s) pursuant to which
certain Texas healthcare assets owned by Aetna U.S. Healthcare, Inc. as a
result of the acquisition described in the NYLCare Agreements were sold to Blue
Cross and Blue Shield of Texas, a division of Health Care Service Corporation,
in March, 2000, and (ii) other agreements as set forth on Schedule 1.01B or any
agreements (other than the Lincoln Agreements, the NYLCare Agreements and the
Prudential Agreements) pursuant to which Aetna Life Insurance Company, Aetna
Health and Life Insurance Company, Aetna U.S. Healthcare, Inc. or their
respective direct or indirect Subsidiaries sold or acquired stock (or equity
interests) in, or assets of, other corporations or unincorporated entities.

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     "NYLCare Agreements" means the agreements pursuant to which Aetna acquired
the healthcare assets of New York Life Insurance Company in July, 1998.

     "Parent" has the meaning set forth in the recitals.

     "Parent Affiliates" means, without duplication, (i) Aetna, AFS, Aetna
Retirement Holdings, Inc., Aetna Life Insurance and Annuity Company, Aetna
International, Inc., Aetna Life Insurance Company of America and any other
direct and indirect Subsidiaries of Parent immediately after the Distribution
(including predecessors and successors thereto), (ii) any entities that are or
have been "controlled foreign corporations" (within the meaning of Section
957(a) of the Code or successor provisions) of which AFS, Aetna International,
Inc. or any of their respective Subsidiaries is or has been a "United States
shareholder" (within the meaning of Section 951(b) of the Code or successor
provisions), (iii) China Pacific Insurance Company, and (iv) any entities
(except for entities described in clause (i) or clause (ii) of this definition)
that have been direct or indirect Subsidiaries of AFS or Aetna International,
Inc. at any time prior to the Distribution (including predecessors or
successors thereto). Aetna Services, Inc. shall be treated as a Parent
Affiliate for tax periods ending prior to January 1, 2000.

     "Person" means Person as such term is defined in the Distribution
Agreement.

     "Post-Distribution Tax Period" means (i) any tax period beginning and
ending after the Distribution Date, and (ii) with respect to a tax period that
begins before and ends after the Distribution Date, such portion of the tax
period that commences on the day immediately after the Distribution Date.

     "Post-1994 Tax Period" means any tax period (or portion thereof) that
begins on or after January 1, 1995.

     "Pre-Distribution Stub Tax Period" means any tax period described in
clause (ii) of the definition of Pre-Distribution Tax Period.

     "Pre-Distribution Tax Period" means (i) any tax period ending before or on
the Distribution Date, and (ii) with respect to a period that begins before and
ends after the Distribution Date, such portion of the tax period ending on and
including the Distribution Date.

     "Pre-1995 Tax Period" means any tax period (or portion thereof) that ends
on or before December 31, 1994.

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     "Prior Deal Agreements" means (i) the AmRe Agreements, (ii) the Lincoln
Agreements, (iii) the NYLCare Agreements, (iv) the Prudential Agreements, (v)
the Travelers Agreements, and/or (vi) the Miscellaneous Agreements.

     "Prudential Agreements" means the agreements pursuant to which Aetna and
certain of its Subsidiaries acquired the healthcare assets of The Prudential
Insurance Company of America in August, 1999.

     "Referee" has the meaning set forth in Section 10.09.

     "Representatives" has the meaning set forth in Section 7.04.

     "Return" means any Tax return, statement, report or form (including
without limitation estimated Tax returns and reports, extension requests and
forms, and information returns and reports) required to be filed with any
Taxing Authority.

     "Return Due Date" means, with respect to a return of the Aetna
Consolidated Group, the due date under applicable Tax law of such Return
(taking into account, without limitation, all applicable and valid extensions
of such date).

     "Spinco" has the meaning set forth in the recitals.

     "Spinco Affiliates" means (i) Spinco, Aetna Life Insurance Company, Aetna
Health and Life Insurance Company and any other direct or indirect Subsidiaries
of Spinco immediately after the Distribution (including predecessors and
successors thereto), (ii) the Travelers Companies (including predecessors or
successors thereto), and (iii) any entities (except for entities described in
clause (i) or clause (ii) of this definition) that have been direct or indirect
Subsidiaries of Aetna at any time prior to the Distribution (including
predecessors or successors thereto) but that are not Parent Affiliates. Aetna
Services, Inc. shall be treated as a Spinco Affiliate for tax periods beginning
after December 31, 1999.

     "Spinco-Aetna Tax Proceeding" means any Tax Proceeding solely between (i)
one or more of the Parent Affiliates, ING Groep N.V. and/or any entity that,
following the Distribution Date, is a Subsidiary of ING Groep N.V., on one
hand, and (ii) one or more of the Spinco Affiliates, and/or any entity that,
following the Distribution Date, is a Subsidiary of Spinco, on the other hand.

     "Spin-Off" means Spin-Off as such term is defined in the Merger Agreement.

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<PAGE>

     "Subsidiary" means Subsidiary as such term is defined in the Distribution
Agreement.

     "Tax" means (i) any United States federal, state or local or foreign
income, profits, franchise, premium, gross receipts, environmental, customs
duty, capital stock, severances, stamp, payroll, sales, transfer, employment,
unemployment, occupation, disability, use, property, real property gains,
withholding, escheat, excise, production, value added, ad valorem, windfall,
license, occupancy and any other taxes, duties or assessments of any nature
whatsoever, together with any interest, penalties and additions imposed with
respect to such amounts and any interest in respect of such penalties and
additions; (ii) any liability of an entity for the payment of any amount of the
type described in clause (i) as a result of being or having been before the
Distribution Date a member of a Consolidated Group, or a party to any agreement
or arrangement, as a result of which liability of such entity and its
subsidiaries to a Tax Authority is determined or taken into account with
reference to the liability of any other Person (including, for example,
liability under Treasury Regulations Section 1.1502-6 or similar liability
under any other law), and (iii) any liability for the payment of any amount as
a result of being party to any agreements or arrangements (whether or not
written) binding an entity or any of its subsidiaries (A) that provide for the
allocation, apportionment, sharing or assignment of any tax liability or tax
benefit, or the transfer or assignment of income, revenues, receipts, or gain,
in each case for the principal purpose of determining any Person's tax
liability or (B) with respect to the payment of any amount of the type
described in clause (i) or clause (ii) as a result of any existing express or
implied obligation (including without limitation an indemnification
obligation).

     "Tax Asset" means any net operating loss, net capital loss, investment tax
credit, foreign tax credit, enterprise zone credit or incentive, charitable
deduction or any other loss, credit, deduction or tax attribute that could be
carried forward or back to reduce taxes (including without limitation
deductions and credits relating to alternative minimum taxes).

     "Tax Packages" of the Health Group with respect to a tax period means (i)
in the context of the preparation of a Tax return, one or more packages
(sufficiently complete to be filed in a Return) which shall include (A)
completed Federal Tax Forms 1120s, 1120-PCs and 1120-Ls or comparable state Tax
forms, as the case may be (or materials reflecting the information set forth on
such forms), prepared on a pro forma basis, and (B) such other schedules and
other materials, containing information with respect to the Health Group
relevant to the preparation and signing of the Returns of the Aetna
Consolidated Group with respect to such tax period, as are reasonably necessary
to calculate consolidated Taxable items and as are mutually agreed to, and (ii)
in the context of the

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<PAGE>

determination of the amount of any payment of estimated taxes, one or more
packages of Tax information, to be mutually agreed to, which enable the
calculation of such estimated taxes.

     "Tax Proceeding" means any Tax audit, contest, dispute or proceeding
(whether administrative, judicial or otherwise).

     "Taxing Authority" means any governmental authority (whether United States
or foreign, and including without limitation any state, municipality, political
subdivision or governmental agency) responsible for the imposition of any Tax.

     "Taxing Authority Proceeding" means any Tax Proceeding in which a Taxing
Authority participates.

     "Travelers Agreements" means the agreements pursuant to which Aetna sold
or caused to be sold the stock of the Travelers Companies to The Travelers
Insurance Group, Inc. in April, 1996.

     "Travelers Companies" means The Aetna Casualty and Surety Company, The
Standard Fire Insurance Company and their respective Subsidiaries.

     (b) Any term used in this Agreement that is not defined in this Agreement
shall, to the extent the context requires, have the meaning assigned to it in
the Code (and applicable Treasury regulations thereunder) or comparable
provisions of applicable state or local or foreign tax law.

                                   ARTICLE 2
                     ADMINISTRATIVE AND COMPLIANCE MATTERS

     SECTION 2.01. Sole Tax Sharing Agreement. (a) Any and all existing Tax
sharing agreements or arrangements, written or unwritten, between one or more
Parent Affiliates and one or more Spinco Affiliates shall be terminated as of
the effective date of this Agreement; provided that there shall not be
terminated (i) any Tax sharing agreements or arrangements that are included or
set forth in the Prior Deal Agreements or in the Aetna International
Disposition Agreements, or (ii) to the extent consistent with the provisions
and principles of this Agreement, any provision relating to Taxes in the
Distribution Agreement, the other Distribution Documents or the Merger
Agreement. As of the effective date of this Agreement, neither the Parent
Affiliates nor the Spinco Affiliates shall have any further rights or
liabilities under agreements or arrangements that are terminated

                                       12
<PAGE>

pursuant to the preceding sentence, and this Agreement shall be the sole Tax
sharing agreement between one or more Parent Affiliates, on one hand, and one
or more Spinco Affiliates, on the other hand.

     (b) This Agreement shall not address the obligations or arrangements, if
any, (i) among Parent Affiliates, or (ii) among Spinco Affiliates.

     SECTION 2.02. Designation of Agent. (a) Each member of the Health Group
hereby authorizes and designates Aetna as its agent, coordinator and
administrator, for the purposes of (i) taking any and all actions necessary or
incidental to the filing of any Return, any amended Return or any claim for
refund, credit or offset of Tax, or any other proceedings, and (ii) making
payments to, or collecting refunds from, any Taxing Authority, in the case of
each of clauses (i) and (ii) relating only to any Pre-Distribution Tax Period
and in conformity with the provisions and principles of this Agreement;
provided that, for the avoidance of doubt, Aetna shall not be designated as
agent, coordinator or administrator with respect to Taxes reflected on any
Federal Tax Return, United States state or local Tax Return or Return relating
to foreign Taxes, in each case that are (A) filed on a separate-company basis
by a member of the Health Group, or (B) filed on behalf of a Consolidated Group
of which a member of the Health Group is the parent. Aetna covenants to the
Spinco Affiliates that it shall be responsible to see that all administrative
matters relating to the actions described in clauses (i) and (ii) of the
preceding sentence shall be handled promptly and appropriately and in
conformity with the provisions and principles of this Agreement. Any disputes
between Aetna and the Health Group as to the scope of Aetna's role under this
Section 2.02 shall be the subject of the dispute resolution procedures under
Section 10.09.

     (b) Combined New York-Illinois Parent shall be designated as agent,
coordinator and administrator of each member of the Health Group, in the case
of a Combined New York-Illinois Tax that is the New York insurance tax, or each
member of the Acquired Group, in the case of a Combined New York-Illinois Tax
that is the tax payable to the State of Illinois, for the purposes of (i)
taking any and all actions necessary or incidental to the filing of any Return,
any amended Return or any claim for refund, credit or offset of a Combined New
York-Illinois Tax, or any other proceedings, and (ii) making payments to, or
collecting refunds from, any Taxing Authority, in the case of each of clauses
(i) and (ii) relating only to any Pre-Distribution Tax Period and in conformity
with the provisions and principles of this Agreement. In applying Section 2.03
and/or Article 3 (and/or any other provision of this Agreement for which the
parent of the Consolidated Group with respect to a Combined New York-Illinois
Tax is relevant) to a Combined New York-Illinois Tax, (i) a reference in any
such provision to Aetna shall be treated, as appropriate, as a reference to the
Combined New York-Illinois Parent, and (ii)

                                       13
<PAGE>

any such provision shall be applied mutatis mutandis with respect to such
Combined New York-Illinois Tax.

     (c) Aetna and Spinco shall Jointly Decide the extent, if any, to which
Aetna shall be designated as agent, coordinator and administrator of members of
the Health Group for the purpose of taking actions relating to any Post-
Distribution Tax Period.

     SECTION 2.03. Pre-Distribution Tax Period Returns. (a) Aetna shall
prepare, consistently with relevant past practice and applicable law and in
conformity with the provisions and principles of this Agreement, and file the
consolidated Federal Tax Returns and Combined State Tax Returns of the Aetna
Consolidated Group for all Pre-Distribution Tax Periods.

     (b) In preparing such Returns, Aetna shall not discriminate among the
members of the Aetna Consolidated Group. Aetna shall have the right with
respect to such Returns to determine (i) the manner in which such Returns shall
be prepared and filed on Tax matters that predominantly affect the Acquired
Group, including without limitation the manner in which any item of income,
gain, loss, deduction or credit shall be reported by the Acquired Group, and
(ii) the elections that shall be made by any member of the Acquired Group.
Spinco shall have the right, with respect to all Federal Tax Returns and
Combined State Tax Returns of the Aetna Consolidated Group for Pre-Distribution
Tax Periods, to determine (i) the manner in which such Returns shall be
prepared and filed on Tax matters that predominantly affect the Health Group,
including without limitation the manner in which any item of income, gain,
loss, deduction or credit shall be reported by the Health Group (provided,
however, that Spinco shall not have such right with respect to, and Spinco and
Aetna shall Jointly Decide the treatment of, a Tax matter (or the relevant
portion thereof) on a Return to the extent that (A) (x) there is not
substantial authority in support of Spinco's position on such Tax matter (or
portion thereof), and (y) Spinco has not included appropriate disclosure of
such position in the relevant Tax Package, or (B) there is not reasonable basis
for Spinco's position), and (ii) the elections that shall be made by any member
of the Health Group. The parties agree that the Spin-Off shall be treated as
predominantly relating to the Health Group for the purposes of this Agreement.

     (c) To the extent that (i) two or more provisions of Section 2.03(b) would
otherwise apply to a Tax item in a conflicting manner, or the treatment of a
Tax item that is material to the tax liability of the Aetna Consolidated Group
for the relevant Pre-Distribution Tax Period is not addressed by Section
2.03(b), and (ii) the treatment of such Tax item in the appropriate Return of
the Aetna Consolidated Group is not addressed by any other provision of this
Agreement, Aetna and Spinco shall Jointly Decide the treatment of such Tax
item.

                                       14
<PAGE>

     (d) No later than 45 calendar days prior to the Return Due Date for a
Return of the Aetna Consolidated Group, Spinco shall prepare and deliver Tax
Packages to Aetna that contain information of the Health Group for (i) any Pre-
Distribution Stub Tax Period, and (ii) any other tax period for which (A) a
Return that includes such tax period has not been filed prior to the
Distribution Date and (B) any Spinco Affiliate is part of the Aetna
Consolidated Group. Subject to Section 2.03(c), the Tax information contained
in such Tax Packages shall be presumed for purposes of Section 2.03(b) to
constitute Tax matters that predominantly affect the Health Group; provided
that Aetna may rebut such presumption, as appropriate, using the dispute
resolution procedures under Section 10.09 of this Agreement.

     (e) No later than 25 calendar days prior to the Return Due Date for a
Return of the Aetna Consolidated Group with respect to a taxable year that
includes a Pre-Distribution Tax Period, Aetna shall provide Spinco with a draft
of such Return, together with material supporting calculations and any other
information reasonably requested by Spinco. Spinco shall have the opportunity
to review and comment on such draft Return, including without limitation to
determine whether such draft Return reflects, in conformity with the provisions
and principles of this Agreement, (i) the information set forth, or otherwise
reflected in, the corresponding Tax Package furnished by Spinco, and (ii) the
treatment of Tax items that have been Jointly Decided by Aetna and Spinco.
Aetna shall take into account, and as necessary shall modify the Return to
reflect, such comments made by Spinco as are required by this Agreement. Any
disagreements or disputes regarding the scope of Spinco's review and comment
rights under this Section 2.03(e) shall be subject to the dispute resolution
procedures under Section 10.09.

                                   ARTICLE 3
                       TAX RETURN MATTERS AND TAX SHARING

     SECTION 3.01. General. For each taxable year of the Aetna Consolidated
Group during which income, loss or credit against tax of any member of the
Health Group is includible in the consolidated Federal Tax Return of the Aetna
Consolidated Group, Spinco shall pay to Aetna an amount equal to the Health
Federal Tax Liability, as shown on the calculations described in Section
3.04(a) that result from the Tax Packages of the Health Group for (i) such
taxable year, if such taxable year ends prior to the Distribution Date, or (ii)
the Pre-Distribution Stub Tax Period, if such taxable year includes the
Distribution Date. For each taxable year of the Aetna Consolidated Group during
which income, loss or credit

                                       15
<PAGE>

against tax of any member of the Health Group is includible in a Return
relating to a Combined State Tax, Spinco shall pay Aetna an amount equal to the
Health Combined State Tax Liability, as shown on the calculations described in
Section 3.04(a) that result from the Tax Packages of the Health Group for (i)
such taxable year, if such taxable year ends prior to the Distribution Date, or
(ii) the Pre- Distribution Stub Tax Period, if such taxable year includes the
Distribution Date. The principles, and as relevant the provisions, of Section
2.03 shall be applied in interpreting this Article 3. For the avoidance of
doubt, any reference to the principles of this Section 3.01 shall include a
reference to the applicable principles of Section 2.03.

     SECTION 3.02. Estimated Payments. Aetna shall determine the amount of the
estimated tax installment of the Health Federal Tax Liability (corresponding to
the Aetna Consolidated Group's estimated Federal Tax installment) with respect
to a taxable year in which the Health Group is part of the Aetna Consolidated
Group (whether or not such payment is made prior to the Distribution Date), as
determined under the principles of Section 3.01 of this Agreement and using a
Tax Package for the Health Group with respect to the appropriate tax period
timely furnished by Spinco to Aetna. Aetna shall provide Spinco with notice of
such estimated determination for Federal Tax no later than 30 calendar days
before the date such corresponding installment payment is due (including all
applicable and valid extensions). Spinco shall, on or prior to the due date of
the Aetna Consolidated Group's corresponding installment payment, pay to Aetna
the amount so determined in accordance with Article 9 hereof. Aetna shall
determine the amount of the estimated tax installment of the Health Combined
State Tax Liability (corresponding to the Aetna Consolidated Group's relevant
estimated Combined State Tax installment) with respect to a taxable year in
which the Health Group is part of the Aetna Consolidated Group (whether or not
such payment is made prior to the Distribution Date), as determined under the
principles of Section 3.01 of this Agreement and using a Tax Package for the
Health Group with respect to the appropriate tax period timely furnished by
Spinco to Aetna. Aetna shall provide Spinco with notice of such estimated
determination for Combined State Tax no later than 15 calendar days before the
date such corresponding installment payment is due (including all applicable
and valid extensions). Spinco shall, on or prior to the due date of the Aetna
Consolidated Group's corresponding installment payment, pay to Aetna the amount
so determined in accordance with Article 9 hereof.

     SECTION 3.03. Certain Payments Upon Due Date. On or prior to the due date
under Tax law (without taking into account any applicable or valid extensions
of such date) of any Return of the Aetna Consolidated Group with respect to a
Pre-Distribution Tax Period, Spinco shall pay to Aetna, or Aetna shall pay to
Spinco, as appropriate, an amount equal to the difference, if any, between

                                      16
<PAGE>

(i) the Health Federal Tax Liability or the Health Combined State Tax
Liability, as the case may be, for such Pre-Distribution Tax Period, and (ii)
the aggregate amount of the estimated installments paid with respect thereto
pursuant to (or in accordance with the principles of) Section 3.02.

     SECTION 3.04. Payment of Taxes at Year-End. (a) No later than 45 calendar
days before the Return Due Date for the Aetna Consolidated Group's consolidated
Federal Tax return, Spinco shall deliver to Aetna a Tax Package of the Health
Group relating to Federal Taxes for (i) such taxable year, if such taxable year
ends prior to the Distribution Date, or (ii) the Pre-Distribution Stub Tax
Period, if such taxable year includes the Distribution Date (the delivery date
constituting the "Federal Tax Package Delivery Date"). No later than 30
calendar days after the Federal Tax Package Delivery Date, Aetna shall deliver
to Spinco a statement showing a calculation of the amount to be paid pursuant
to Section 3.04(b) below. No later than 45 calendar days before the Return Due
Date for each Combined State Tax return, Spinco shall deliver to Aetna a Tax
Package of the Health Group relating to a Combined State Tax for (i) such
taxable year, if such taxable year ends prior to the Distribution Date, or (ii)
the Pre-Distribution Stub Tax Period, if such taxable year includes the
Distribution Date (the delivery date constituting a "Combined State Tax Package
Delivery Date"). No later than 20 calendar days after such Combined State Tax
Package Delivery Date, Aetna shall deliver to Spinco a statement showing a
calculation of the amount to be paid pursuant to Section 3.04(b) below. In the
event that Aetna and Spinco Jointly Agree that any timeframe set forth in this
Section 3.04(a) shall be modified, this Section 3.04(a) shall be treated as
having been satisfied to the extent such modified timeframe is complied with.

     (b) On or prior to the Return Due Date for the Return of the Aetna
Consolidated Group to which a calculation described in Section 3.04(a),
resulting from a Tax Package of the Health Group, relates, Spinco shall pay to
Aetna, or Aetna shall pay to Spinco, as appropriate, an amount equal to the
difference, if any, between (i) the Health Federal Tax Liability or the Health
Combined State Tax Liability, as the case may be, reflected by such calculation
for such tax period, and (ii) the aggregate amount of (A) the estimated
installments paid with respect thereto pursuant to (or in accordance with the
principles of) Section 3.02, and (B) payments made pursuant to (or in
accordance with the principles of) Section 3.03.

     (c) Spinco shall be permitted to invoke the dispute resolution procedures
under Section 10.09 with respect to the manner in which Aetna has discharged
its obligations under Section 3.04(a).

                                       17
<PAGE>

     SECTION 3.05. Treatment of Adjustments. If any adjustment is made in a
Federal Tax Return or a Combined State Tax Return of the Aetna Consolidated
Group, after the filing thereof, in which income or loss of any member of the
Health Group is included, then within five calendar days of the time of a Final
Determination of such adjustment, Spinco shall pay to Aetna or Aetna shall pay
to Spinco, as the case may be, the difference between all payments actually
made pursuant to (or in accordance with the principles of) Article 3 (and any
other applicable provisions of this Agreement) with respect to the taxable year
covered by such Return and all payments that would have been made pursuant to
(or in accordance with the principles of) Article 3 (and any other applicable
provisions of this Agreement) taking such adjustment into account with respect
to such taxable year, together with any penalties actually paid and interest
for each day until the date of Final Determination calculated at the
Intercompany Interest Rate.

     SECTION 3.06. Carry-Backs from Post-Distribution Tax Periods and Certain
Other Matters. (a) Aetna agrees to pay to Spinco, within three calendar days of
Effective Realization, the actual tax benefit received or otherwise Effectively
Realized by the Aetna Consolidated Group from the use in any Pre- Distribution
Tax Period of a carryback of any Tax Asset of the Health Group from a
Post-Distribution Tax Period. Such benefit shall be equal to the excess of (i)
the amount of Federal Taxes or Combined State Taxes, as the case may be, that
would have been payable (or of the Federal Tax or Combined State Tax refund
actually receivable) by the Aetna Consolidated Group in the absence of such
carryback, over (ii) the amount of Federal Taxes or Combined State Taxes, as
the case may be, actually payable (or of the Federal Tax or Combined State Tax
refund that would have been receivable) by the Aetna Consolidated Group.

     (b) If, subsequent to the payment by Aetna to Spinco of any amount
pursuant to (or in accordance with the principles of) Section 3.06(a), there
shall be (i) a Final Determination that results in a disallowance or a
reduction of the Tax Asset so carried back or (ii) a reduction in the amount of
the tax benefit Effectively Realized by the Aetna Consolidated Group from such
Tax Asset as a result of the use by the Aetna Consolidated Group of a Tax Asset
of the Acquired Group (provided that, for purposes of clause (ii), to the
extent that the sum of the Tax Assets of the Acquired Group available to be
used in the Pre-Distribution Tax Period to which carryback is made and the Tax
Assets of the Health Group available to be used in such Pre-Distribution Tax
Period exceeds the Tax Assets permitted to be used by the Aetna Consolidated
Group with respect to such Pre- Distribution Tax Period, the same proportion of
the Tax Assets of the Acquired Group and of the Health Group shall be used,
unless Aetna and Spinco Jointly Decide otherwise), Spinco shall repay to Aetna,
within three calendar days of such event described in clause (i) or (ii) (an
"Event" or, collectively the "Events"), any amount that would not have been
payable to Spinco pursuant to (or in accordance

                                       18
<PAGE>

with the principles of) Section 3.06(a) had the amount of the tax benefit been
determined in light of the Events. In addition, Spinco shall hold each member
of the Acquired Group harmless from any penalty or interest payable by any
member of the Acquired Group as a result of any such Events. Any such amount
shall be paid by Spinco within three calendar days of the payment by the
Acquired Group of any such penalty or interest.

     (c) Any refunds or credits of Tax received or otherwise Effectively
Realized by a member of the Acquired Group or the Health Group, as the case may
be, relating to a Pre-Distribution Tax Period, to the extent reflecting a Tax
saving attributable to any item of income, loss, credit, deduction or other Tax
attribute of any member of the Health Group or the Acquired Group,
respectively, shall be paid by such member of the Acquired Group or the Health
Group, respectively, to Spinco or Aetna, respectively, within three calendar
days of the receipt or other Effective Realization of such tax saving; provided
that (i) no such payment shall be required to the extent such refunds or
credits are attributable to (A) a Tax Asset of the Health Group or the Acquired
Group, respectively, for which payment has previously been made by the Acquired
Group or the Health Group, respectively, pursuant to (or in accordance with the
principles of) Section 3.06(a), this Section 3.06(c) or any other applicable
provision of this Agreement, or (B) an adjustment for which payment in respect
thereof has previously been made pursuant to (or in accordance with the
principles of) Section 3.05 or any other applicable provision of this
Agreement, and (ii) any refunds shall be paid net of any Tax liability to an
entity resulting from such entity's receipt of such refund from the Taxing
Authority.

     SECTION 3.07. Additional Matters. To the extent that any Parent Affiliate
or any Spinco Affiliate receives interest from a Taxing Authority relating to
an adjustment made in a Federal Tax Return or a Combined State Tax return of
the Aetna Consolidated Group, any obligations of Parent or Spinco,
respectively, under Section 3.05 or Section 3.06 arising from such adjustment
shall be reduced by any Tax incurred by the Parent Affiliate or the Spinco
Affiliate, respectively, on the receipt of such interest.

                                   ARTICLE 4
                CERTAIN COVENANTS AND EMPLOYEE BENEFITS MATTERS

     SECTION 4.01. Spinco Covenants to Aetna. (a) Spinco covenants to Aetna
that, during the period from the date on which the Merger Agreement was signed
through the Distribution Date, Aetna will not have caused the Acquired Group to
take a position on a material Federal Tax matter with respect to such

                                       19
<PAGE>

period, which position Aetna does not believe, at the time such position is
taken, should be treated as being supported by substantial authority (within
the meaning of the Code).

     (b) Spinco covenants to Aetna that at no time prior to the Distribution
Date will Spinco or any Spinco Affiliate have filed a Return of a Consolidated
Group of which it is the parent and which includes any Parent Affiliate.

     (c) Spinco covenants to Aetna that, during the period from the date on
which the Merger Agreement was signed through the Distribution Date, it shall
not adjust the Tax accounts of Aetna, Aetna Life Insurance and Annuity Company,
Aetna International, Inc. or certain Malaysian subsidiaries of Aetna
International, Inc., except in each case to the extent necessary to reflect the
accrual of current Tax liabilities and the making of payments of estimated Tax
installments.

     SECTION 4.02. Covenant Regarding Amendment of Returns. Each member of the
Acquired Group covenants to the members of the Health Group that Aetna shall
not amend any Return of the Aetna Consolidated Group filed prior to the
Distribution Date, or change any tax election or any tax accounting method
reflected on any such Return, which amendment or change would result in a
material increase in the tax liability (or a material reduction of any Tax
Asset) of the Health Group with respect to any Pre-Distribution Tax Period,
except in each case to the extent (i) permitted by Article 8 of this Agreement,
(ii) required by any applicable Final Determination, or (iii) agreed to by
Spinco.

     SECTION 4.03. Certain Deductions Relating to Employee Benefits Matters.
(a) Spinco shall claim, and for purposes of this Agreement Spinco shall be
entitled to the economic benefit of, any Federal Tax or other Tax deductions
that are (i) attributable to the cancellation under Section 2.04(b)(i) of the
Employee Benefits Agreement of options with respect to the Aetna Common Stock,
(ii) attributable to the exercise following the Distribution Date of any option
with respect to the common stock of Spinco, which option shall have been
converted from an option with respect to the Aetna Common Stock pursuant to
Section 2.04(b)(ii) of the Employee Benefits Agreement, (iii) attributable to
any payments of cash under Section 2.04(b)(ii) of the Employee Benefits
Agreement, (iv) in connection with AUSHC Bonus Liabilities (as defined in
Section 2.04(c) of the Employee Benefits Agreement), (v) in connection with
Retained Supplemental Liabilities (as defined in Section 3.02(a)(ii) of the
Employee Benefits Agreement), (vi) in connection with AUSHC Deferred
Compensation Liabilities (as defined in Section 3.02(b)(ii) of the Employee
Benefits Agreement), (vii) in connection with Retained Retiree Health and Life
Liabilities (as defined in Section 4.02(a) of the Employee Benefits Agreement),
(viii) in connection with the AUSHC WCP Liabilities (as defined in

                                      20
<PAGE>

Section 4.06(a) of the Employee Benefits Agreement), (ix) in connection with
AUSHC Phantom Liabilities (as defined in Section 4.11(b) of the Employee
Benefits Agreement), (x) in connection with Director Liabilities (within the
meaning of Article 5 of the Employee Benefits Agreement), or (xi) in connection
with AUSHC International Liabilities (within the meaning of Section 5.02 of the
Employee Benefits Agreement).

     (b) To the extent that any deduction that is allocated to Spinco under
Section 4.03(a) is disallowed because a Taxing Authority makes a Final
Determination that Aetna or any other Parent Affiliate should have claimed such
deduction, Aetna shall pay to Spinco an amount equal to the resulting actual
Tax benefit Effectively Realized by any Parent Affiliate (or any member, except
for any Spinco Affiliate, of a Consolidated Group of which any Parent Affiliate
is a member), together with the related After-Tax Amount, within three calendar
days of the Effective Realization thereof.

                                   ARTICLE 5
                                  INDEMNITIES

     SECTION 5.01. Indemnification of Parent Affiliates by Spinco Affiliates.
Spinco and each Spinco Affiliate (except for the Travelers Companies) shall
jointly and severally indemnify Aetna and each Parent Affiliate against and
hold them harmless from the following, without duplication:

     (a) any Health Group Tax Liability, except for any liability (or portion
thereof) that is described in Section 5.02(d);

     (b) any liability for Taxes attributable to any Spinco Affiliate (provided
that, for the purposes of the foregoing portion of this Section 5.01(b), Taxes
shall refer only to such taxes as are described in clause (i) or clause (iii)
of the definition of such term in Section 1.01(a)) (including without
limitation (i) any Tax liability of Aetna U.S. Healthcare, Inc. or of any
Spinco Affiliate that was a direct or indirect Subsidiary of Aetna U.S.
Healthcare, Inc. immediately after Aetna's acquisition in 1996 of Aetna U.S.
Healthcare, Inc., which Tax liability relates to tax periods ending on the date
of, or prior to, such acquisition, and (ii) any liability with respect to a
Pre-Distribution Tax Period of a member of the Health Group for which a Taxing
Authority holds any member of the Acquired Group liable solely by reason
(taking into account for this purpose the principles of this Agreement) of
Treasury Regulations Section 1.1502-6 or comparable provisions of United States
state or local or foreign law), but excluding any liability (or portion
thereof) that is described in Section 5.02(d);

                                       21
<PAGE>

     (c) the net amount (if a liability) of (i) the Federal Tax liabilities
paid and/or interest paid (which interest shall be adjusted downwards for the
Federal Tax deductions to a Parent Affiliate resulting from its payment using
the highest rate of tax specified in Section 11(b) of the Code) to the Internal
Revenue Service by, and (ii) the refunds of Federal Tax and/or interest (which
interest shall be adjusted downwards for the Federal Tax incurred by a Parent
Affiliate on the receipt of such interest using the highest rate of tax
specified in Section 11(b) of the Code) received from the Internal Revenue
Service by, in the case of each of clauses (i) and (ii) the Parent Affiliates
with respect to the specific Federal Tax items that are set forth on Schedule
5.01 and that relate solely to Pre-1995 Tax Periods (each such Federal Tax item
constituting a "Covered Tax Item"); provided that, except for the funding
arrangements under Section 5.03(b), no indemnification obligation shall arise
under this Section 5.01(c) until the date (the "Covered Items Payment Date")
that is 10 calendar days after the date (the "Covered Items Determination
Date") on which, for Federal Tax purposes, a Final Determination shall be in
place for each of the Covered Tax Items;

     (d) any Tax liability of any member of the Health Group resulting from the
existence of any excess loss account or deferred intercompany gain immediately
before the Distribution (which excess loss account or deferred intercompany
gain is triggered by the Distribution under the Treasury regulations
promulgated under Section 1502 of the Code), except for any liability (or
portion thereof) that is described in Section 5.02(d); provided that, for the
purposes of this Section 5.01(d), Tax shall refer only to such taxes as are
described in clause (i) or clause (iii) of the definition of such term in
Section 1.01(a);

     (e) any Tax liability of any member of the Acquired Group resulting from
the existence of any excess loss account or deferred intercompany gain
immediately before the Distribution (which excess loss account or deferred
intercompany gain (i) is triggered by the Distribution or the Merger under the
Treasury regulations promulgated under Section 1502 of the Code and (ii) did
not arise, and was not increased, solely by reason of such portions of the
Spin-Off as precede the Distribution), except (A) to the extent that the
aggregate amount of the Tax liabilities described in this Section 5.01(e),
without taking into account the following clause (B), does not exceed US$10
million, and (B) for any liability (or portion thereof) that is described in
Section 5.02(d); provided that, for the purposes of this Section 5.01(e), Tax
shall refer only to such taxes as are described in clause (i) or clause (iii)
of the definition of such term in Section 1.01(a);

                                       22
<PAGE>

     (f) any Tax indemnity payment required to be made by any Parent Affiliate
or any Spinco Affiliate under the Prior Deal Agreements or the AUSHC
Agreements;

     (g) any Tax liability relating to (or resulting from the treatment of) the
transactions described in the Travelers Agreements, the Lincoln Agreements, the
AmRe Agreements or the Miscellaneous Agreements;

     (h) any Tax liability relating to (or resulting from the treatment of) the
assets acquired pursuant to, or the transactions described in, the AUSHC
Agreements, the NYLCare Agreements or the Prudential Agreements;

     (i) any Tax liability relating to (or resulting from the treatment of) the
Spin-Off, except for any liability (or portion thereof) that is described in
Section 5.02(d); provided that this Section 5.01(i) shall not describe (A) any
Tax liability resulting from the existence of any excess loss account or
deferred intercompany gain immediately before the Distribution (except for Tax
liability of any member of the Acquired Group resulting from the existence of
any excess loss account or deferred intercompany gain immediately before the
Distribution, to the extent that such excess loss account or deferred
intercompany gain (x) is triggered by the Distribution or the Merger under the
Treasury Regulations promulgated under Section 1502 of the Code and (y) arose,
or was increased, solely by reason of such portions of the Spin-Off as precede
the Distribution; provided that for purposes of such exception Tax shall refer
only to such taxes as are described in clause (i) or clause (iii) of the
definition of such term in Section 1.01(a)), or (B) such transfer, documentary,
sales, use, stamp and registration Taxes as shall be borne by Aetna under
Section 8.08(d) of the Distribution Agreement;

     (j) any liability or damage resulting from a breach by Spinco or any other
Spinco Affiliate of any representation or covenant made by such entity in, or
of any other provision of, this Agreement; and

     (k) all liabilities, costs, expenses (including without limitation
reasonable expenses of investigation and attorneys' fees and expenses), losses,
damages, assessments, settlements or judgments arising out of or incident to
the imposition, assessment or assertion of any liability or damage described in
(a), (b), (c), (d), (e), (f), (g), (h), (i) or (j), including without
limitation those incurred in the contest in good faith in appropriate
proceedings relating to the imposition, assessment or assertion of any such
liability or damage.

     SECTION 5.02. Indemnification of Spinco Affiliates by Parent Affiliates.
Aetna and each Parent Affiliate shall jointly and severally indemnify Spinco
and

                                       23
<PAGE>

each Spinco Affiliate against and hold them harmless from the following,
without duplication:

     (a) any Federal Tax or Combined State Tax liability of the Aetna
Consolidated Group with respect to a Pre-Distribution Tax Period, to the extent
that such liability (or a portion thereof) is neither a Health Group Tax
Liability nor any other item that is described in Section 5.01;

     (b) any liability for Taxes attributable to any Parent Affiliate (provided
that, for the purposes of the foregoing portion of this Section 5.02(b), Taxes
shall refer only to such taxes as are described in clause (i) or clause (iii)
of the definition of such term in Section 1.01(a)), including without
limitation any liability with respect to a Pre-Distribution Tax Period of a
member of the Acquired Group for which a Taxing Authority holds any member of
the Health Group liable solely by reason (taking into account for this purpose
the principles of this Agreement) of Treasury Regulations Section 1.1502-6 or
comparable provisions of United States state or local or foreign law, but
excluding any liability (or portion thereof) that is described in Section
5.01(c), Section 5.01(e), Section 5.01(f), Section 5.01(g), Section 5.01(h),
Section 5.01(i) or Section 5.01(j);

     (c) any Tax indemnity payment required to be made by any Parent Affiliate
or any Spinco Affiliate under the Aetna International Disposition Agreements,
or any Tax liability relating to (or resulting from the treatment of) the
transactions described in the Aetna International Disposition Agreements;

     (d) any liability or damage resulting from a breach, after the
Distribution Date, by Aetna or any other Parent Affiliate of any covenant made
by such entity in, or of any other provision of, this Agreement; and

     (e) all liabilities, costs, expenses (including without limitation
reasonable expenses of investigation and attorneys' fees and expenses), losses,
damages, assessments, settlements or judgments arising out of or incident to
the imposition, assessment or assertion of any liability or damage described in
(a), (b), (c) or (d), including without limitation those incurred in the
contest in good faith in appropriate proceedings relating to the imposition,
assessment or assertion of any such liability or damage.

     SECTION 5.03. Treatment of Interim Payments and Refunds With Respect to,
and Certain Other Matters Regarding, Covered Tax Items. (a) For purposes of
performing the calculation following the Covered Items Determination Date of
the net amount described in Section 5.01(c), any refund of Federal Tax and/or
interest (with the adjustment to the interest for Federal Tax effects set forth
in

                                       24
<PAGE>

clause (ii) of Section 5.01(c)) with respect to a Covered Tax Item, which
refund is described in clause (ii) of Section 5.01(c), shall offset on a
dollar-for-dollar basis any Federal Tax liability and/or interest (with the
adjustment to the interest for Federal Tax effects set forth in clause (i) of
Section 5.01(c)) with respect to any of the Covered Tax Items, which liability
or interest is described in clause (i) of Section 5.01(c), regardless of
whether such refund is received before, at the same time as, or after, the
payment of such liability or interest.

     (b) Notwithstanding that no indemnification obligation shall arise under
Section 5.01(c) until the Covered Items Payment Date, Spinco or another Spinco
Affiliate shall (i) within the time limit specified by the Internal Revenue
Service for payment, fund any cash payments to the Internal Revenue Service of
tax with respect to any Covered Tax Item and/or of interest with respect to any
Covered Tax item (with the adjustment to the interest for Federal Tax effects
set forth in clause (i) of Section 5.01(c)), and (ii) be entitled to any
refunds received from the Internal Revenue Service of tax with respect to any
Covered Tax Item and/or of interest with respect to any Covered Tax Item (with
the adjustment to the interest for Federal Tax effects set forth in clause (ii)
of Section 5.01(c)). Any Parent Affiliate that receives a refund from the
Internal Revenue Service of tax and/or interest shall, within three calendar
days of such receipt, transfer to Spinco immediately available funds in an
amount equal to such tax and/or interest (with the adjustment to the interest
for Federal Tax effects set forth in clause (ii) of Section 5.01(c)).

     (c) To the extent that Aetna and Spinco Jointly Decide that it is
appropriate for a Spinco Affiliate to claim the interest deductions reflected
in adjustments to the interest for Federal Tax effects set forth in clause (i)
of Section 5.01(c), such adjustments shall be reduced by such interest
deductions (absent a Final Determination to the contrary) for purposes of
Section 5.01(c), Section 5.03(a) and Section 5.03(b). If Aetna and Spinco each
agrees, the principles of this Section 5.03(c) shall be applied to any interest
obligations, where applicable.

     SECTION 5.04. Discharge of Indemnity. Each party with indemnification
obligations under Section 5.01 or 5.02 (an "Indemnitor"), as the case may be,
shall discharge its obligations thereunder by paying the sum of the relevant
amount and the related After-Tax Amount, within three calendar days of demand
therefor, to the party that is indemnified under such provision (the
"Indemnitee"). After a Final Determination of an obligation for which an
Indemnitee is to be indemnified, the Indemnitee shall send a statement to the
Indemnitor showing the amount due under Section 5.01 or 5.02 and the related
After-Tax Amount. Calculation mechanics relating to appropriate items described
in Section 5.01 and 5.02 shall be in accordance with the principles of this
Agreement. Notwithstanding the foregoing, if an Indemnitor disputes in good

                                       25
<PAGE>

faith the fact or the amount of its obligation under Section 5.01 or 5.02, no
payment of the amount in dispute shall be required until any such good faith
dispute is resolved in accordance with Section 10.09 hereof; provided that any
amount not paid within three calendar days of demand therefor shall bear
interest as provided in Article 9.

     SECTION 5.05. Treatment of Indemnification Payments. Any payments made by
any Spinco Affiliate to any Parent Affiliate under Section 5.01 shall be
treated as involving a deemed dividend by such Spinco Affiliate, which deemed
dividend shall be eliminated under the Treasury regulations promulgated under
Section 1502 of the Code. Any payments made by any Parent Affiliate to any
Spinco Affiliate under Section 5.02 shall be treated as a capital contribution.

     SECTION 5.06. Certain Entities as Indemnitees. (a) Amounts paid in
discharge of any indemnification obligation under Section 5.02 for which the
Indemnitee is (i) Aetna Services, Inc. or (ii) any entity that has no successor
and that is no longer in existence at the time of its entitlement to
indemnification, in the case of each of clauses (i) and (ii) shall be paid to
Spinco.

     (b) Amounts paid in discharge of any indemnification obligation under
Section 5.01 for which the Indemnitee is an entity that has no successor and
that is no longer in existence at the time of its entitlement to
indemnification shall be paid to Aetna.

     SECTION 5.07. Non-Exclusivity of Remedies. The remedies provided for in
this Article 5 are not exclusive and shall not limit any rights or remedies
which may otherwise be available to any Indemnified Party at law or in equity.

     SECTION 5.08. Entitlements Under Certain Agreements. (a) Spinco shall be
entitled to the excess of (i) any Tax indemnity payment received by any Spinco
Affiliate or any Parent Affiliate under the Prior Deal Agreements or the AUSHC
Agreements, over (ii) in the case of receipt by a Parent Affiliate, any Tax
liability incurred by such Parent Affiliate as a result of the receipt of such
Tax indemnity payment.

     (b) Aetna shall be entitled to the excess of (i) any Tax indemnity payment
received by any Parent Affiliate or any Spinco Affiliate under the Aetna
International Disposition Agreements, over (ii) in the case of receipt by a
Spinco Affiliate, any Tax liability incurred by such Spinco Affiliate as a
result of the receipt of such Tax indemnity payment.

                                       26
<PAGE>

                                   ARTICLE 6
                                  SUBSIDIARIES

     SECTION 6.01. Performance. Parent and Aetna agree and acknowledge that
each of Parent and Aetna shall be responsible for the performance, and
guarantee the obligations, of each Parent Affiliate under this Agreement
(including without limitation any indemnification obligations under Article 5).
Spinco agrees and acknowledges that it shall be responsible for the
performance, and guarantee the obligations, of each other Spinco Affiliate
(except for the Travelers Companies and for any Person sold by any Spinco
Affiliate or any Parent Affiliate under the Prior Deal Agreements) under this
Agreement (including without limitation any indemnification obligations under
Article 5).

                                   ARTICLE 7
                     ACCESS TO INFORMATION AND COOPERATION

     SECTION 7.01. Consultation and Cooperation. (a) Aetna and Spinco shall
consult and cooperate (and shall cause the Parent Affiliates or the Spinco
Affiliates, respectively, to cooperate) fully (or, in the case of Spinco
Affiliates that are Travelers Companies, to the extent contemplated in the
Travelers Agreements) at such time and to the extent reasonably requested by
Spinco or Aetna, respectively, in connection with all matters subject to this
Agreement. Such cooperation shall include without limitation:

     (i) (A) except as set forth in Section 7.02, the retention and provision
on reasonable request of any and all information (including without limitation
all books, records, documentation or other information) pertaining to Tax
matters relating to any of the Parent Affiliates or any of the Spinco
Affiliates, (B) any necessary explanations of information and (C) access to
personnel, in the case of each of clauses (A) through (C) until the expiration
of the applicable statute of limitation (giving effect to any extension or
waiver thereof);

     (ii) the execution, acknowledgment or delivery of any document that may be
necessary or helpful in connection with (A) any Return, (B) any Tax Proceeding
or investigation, or (C) the carrying out of a party's obligations under this
Agreement; and

     (iii) the use of the parties' reasonable best efforts to obtain any
documentation from a governmental authority or a third party that may be
necessary or helpful in connection with the foregoing, including without
limitation

                                       27
<PAGE>

pursuant to the Prior Deal Agreements, the AUSHC Agreement or the Aetna
International Disposition Agreements.

     (b) The party that requests cooperation under Section 7.01(a) shall
reimburse the party that furnishes such cooperation and its Affiliates for
reasonable out-of-pocket expenses incurred by the latter party or its
Affiliates and paid to a third party in fulfilling such request, which expenses
would not have been incurred absent such request.

     SECTION 7.02. Corporate Records. Until the expiration of the applicable
statutes of limitation (giving effect to any extension or waiver thereof),
except as otherwise required by law or agreed to by Aetna and Spinco in
writing, each of the Parent Affiliates and the Spinco Affiliates shall continue
to hold the material documents, books, records, files or papers, or other
material information, pertaining to Tax matters (whether in hard copy or
computer format) that it possesses immediately prior to the Distribution Date.
Notwithstanding the foregoing, any Parent Affiliate or Spinco Affiliate may,
consistent with its documentation retention practices, destroy or otherwise
dispose of any such information at any time so long as, prior to such disposal,
(i) such Parent Affiliate or Spinco Affiliate shall provide not less than 90
calendar days' prior written notice to Spinco or Aetna, respectively,
specifying the information proposed to be disposed of and the scheduled date
for such disposal, and (ii) if the recipient of such notice shall request in
writing prior to the scheduled date for such disposal that any of the
information proposed to be disposed of be delivered to the requesting party,
the entity proposing such disposal shall promptly arrange for the delivery of
such portion of the information as was requested (at the expense of the
requesting party).

     SECTION 7.03. Provision of Information. (a) Aetna and Spinco shall keep
each other fully informed with respect to any material development relating to
the matters subject to this Agreement.

     (b) Without limiting the generality of Section 7.03(a), Aetna shall
promptly provide Spinco with (i) any information document requests, any notices
of proposed adjustments, any other material notices or any other information,
in each case received by Aetna from the Internal Revenue Service, any other
Taxing Authority or other third parties in connection with, or otherwise
affecting, the Tax liability of the Aetna Consolidated Group for a
Pre-Distribution Tax Period, and (ii) any other Tax information relating to the
Aetna Consolidated Group that is in the possession of, or otherwise available
to, Aetna (or any other Parent Affiliate) and that is reasonably requested by
Spinco for a Pre-Distribution Tax Period.

                                       28
<PAGE>

     (c) Without limiting the generality of Section 7.03(a), Aetna and Spinco
shall advise each other with respect to any proposed Tax adjustments relating
to a Pre-Distribution Tax Period, which adjustments are the subject of a Tax
Proceeding or investigation and which may affect any Tax liability, any Tax
Asset or any Tax attribute of any Parent Affiliate or any Spinco Affiliate
(including without limitation basis in an asset or the amount of earnings and
profits).

     SECTION 7.04. Confidentiality. Each party shall hold and shall cause its
directors, officers, employees, counsel, accountants, agents, consultants,
advisors and other authorized representatives ("Representatives") to hold in
strict confidence any Tax information concerning one or more of the other
parties hereto, unless (i) such information is reflected on a Tax Return filed
by (or on behalf of) one or more of the parties or is relevant to a Tax
Proceeding involving one or more of the parties, (ii) such information is
required to be disclosed in order to comply with applicable Tax laws, (iii) the
party with the confidentiality commitment is compelled to disclose such
information by judicial or administrative process or, in the opinion of its
counsel, by other requirements of law, and/or (iv) such information can be
shown to have been (A) in the public domain through no fault of the party with
the confidentiality commitment, or (B) lawfully acquired after the Distribution
Date on a non-confidential basis from other sources. Notwithstanding the
foregoing, each party may disclose to its Representatives Tax information so
long as such Representatives are informed of the confidential nature of such
information and are directed to treat such information in a manner consistent
with this Section 7.04.

     SECTION 7.05. Preservation of Privilege. (a) The parties hereto recognize
that some of the information, documents and records disclosed or exchanged
pursuant to or in furtherance of this Agreement may be confidential, work
product, or otherwise privileged under relevant laws and procedures, and each
party agrees to take all reasonable and necessary efforts to protect and
maintain, or to cause its Affiliates and its Representatives to protect and
maintain, any applicable claim to privilege, immunity, protection or
confidentiality in order to protect such information, documents and records
from improper disclosure or use. Without limiting the generality of the
foregoing, and to the maximum extent permitted by law, none of the parties may
waive, undermine or fail to defend any privilege or protection or take or fail
to take any action that (i) could result in the disclosure of any
common-interest or joint-defense materials to a Person that is neither a party
to this Agreement nor an Affiliate of any such party, or (ii) would have the
effect of waiving or undermining such privilege or protection, in the case of
each of clauses (i) and (ii) without the prior written consent of the affected
part(ies).

                                       29
<PAGE>

     (b) Aetna and Spinco agree to cooperate to enter into such joint defense
agreements relating to Taxes as Aetna or Spinco may deem necessary or helpful
to achievement of the outcome described in Section 7.05(a).

     SECTION 7.06. Certain Payroll- and Employee-Related Taxes. (a) Aetna and
Spinco shall cooperate to Jointly Decide (i) the manner in which various
payroll-related Tax Returns (including without limitation withholding Tax
Returns) with respect to Pre-Distribution Tax Periods shall be filed, and (ii)
which of the Parent Affiliates and the Spinco Affiliates shall send such forms
(including without limitation Internal Revenue Service Form W-2 or any
successor form), or cause such forms to be sent, to employees as are required
under applicable Tax Laws.

     (b) Aetna and Spinco shall cooperate to Jointly Decide (i) the manner in
which various information reporting Tax Returns, with respect to any Tax period
ending on or before December 31, 2001 shall be prepared, mailed to recipients,
and filed with the Internal Revenue Service (or other applicable Taxing
Authority), (ii) which of the Parent Affiliates and the Spinco Affiliates shall
send such forms, or cause such forms to be sent, to recipients and to the
Internal Revenue Service (or other applicable Taxing Authority), and (iii) an
approach for sharing the costs of preparing and mailing such Tax Returns
(unless the sharing of such costs is addressed by another Distribution
Document). Aetna and Spinco shall pay such portion of the costs attributable to
the activities described in the preceding sentence as relates to the Parent
Affiliates or the Spinco Affiliates, respectively.

                                   ARTICLE 8
                          TAX PROCEEDINGS AND CONSENT

     SECTION 8.01. Control Over Tax Proceedings. (a) Except to the extent
otherwise provided in Section 8.03, Aetna shall have control over Tax matters
relating to any Taxing Authority Proceeding or Contract-Based Tax Proceeding of
the Aetna Consolidated Group (i) with respect to a Post-1994 Tax Period in the
case of a Federal Tax or (ii) with respect to a Pre-Distribution Tax Period in
the case of a Combined State Tax, in each case which Tax matters predominantly
affect the Acquired Group. Except to the extent otherwise provided in Section
8.03, Aetna shall have discretion regarding decisions to be made, or the nature
of any action to be taken, with respect to any matter described in the
preceding sentence. Except to the extent otherwise provided in Section 8.03,
Spinco shall have control over (i) Tax matters relating to any Taxing Authority
Proceeding or Contract-Based Tax Proceeding of the Aetna Consolidated Group
with respect to

                                       30
<PAGE>

a Pre-1995 Tax Period in the case of a Federal Tax, and (ii) Tax matters
relating to any Taxing Authority Proceeding or Contract-Based Tax Proceeding of
the Aetna Consolidated Group with respect to a Post-1994 Tax Period, which Tax
matters in this clause (ii) predominantly affect the Health Group. Except to
the extent otherwise provided in Section 8.03, Spinco shall have discretion
regarding decisions to be made, or the nature of any action to be taken, with
respect to any matter described in the preceding sentence. In the case of a
Federal Tax, the Covered Tax Items shall be treated as predominantly relating
to the Health Group for purposes of this Agreement.

     (b) To the extent that (i) two or more provisions of Section 8.01(a) would
otherwise apply to a Tax matter in a conflicting manner, or the control of a
Tax matter that is material to the tax liability of the Aetna Consolidated
Group for a Pre-Distribution Tax Period is not addressed by Section 8.01(a),
and (ii) the control of such Tax matter is not addressed by any other provision
of this Agreement, Aetna and Spinco shall Jointly Decide the handling of the
Tax matter in connection with any Taxing Authority Proceeding or Contract-Based
Tax Proceeding. Notwithstanding anything in Section 8.01(a) to the contrary,
Aetna and Spinco shall Jointly Decide, among other things, whether any
extensions or waivers of material statutes of limitation with respect to a
Pre-Distribution Tax Period shall be executed by the Aetna Consolidated Group.

     (c) Without limiting the generality of the third and fourth sentences of
Section 8.01(a), control by Spinco of a Tax matter shall confer upon Spinco (i)
the right and obligation to respond to any information document requests from a
Taxing Authority relating to such Tax matter, (ii) the right to arrange for
Aetna to execute a power of attorney, or other similar document, entitling
Spinco to have direct discussions with a Taxing Authority on such Tax matter to
the extent required for Spinco to fully enforce its rights under this
Agreement, (iii) the right, but not the obligation, to participate (including
without limitation through the retention, at its own expense, of counsel of its
own choosing) in any Taxing Authority Proceeding or Contract-Based Tax
Proceeding regarding such Tax matter (including without limitation in any
discussions with a Taxing Authority regarding compromise or settlement of such
Tax matter), (iv) the right, but not the obligation, upon notice to Aetna, to
assume the defense of the portion of the Taxing Authority Proceeding or
Contract-Based Tax Proceeding that relates to such Tax matter, and (v) except
to the extent otherwise provided in Section 8.03, the right to agree to or
decline the settlement of such Tax matter. If Spinco assumes the defense of any
Taxing Authority Proceeding or Contract-Based Tax Proceeding, Aetna shall have
the right, but not the obligation, to participate (including without limitation
through the retention, at its own expense, of counsel of its own choosing) in
such Tax Proceeding.

                                       31
<PAGE>

     (d) Except as otherwise provided in this Article 8, Aetna shall bear all
fees, costs and expenses in connection with the portions of a Taxing Authority
Proceeding or Contract-Based Tax Proceeding that are attributable to Tax
matters controlled by Aetna. Except as otherwise provided in this Article 8,
Spinco shall bear all fees, costs and expenses in connection with the portions
of a Taxing Authority Proceeding or Contract-Based Tax Proceeding that are
attributable to Tax matters controlled by Spinco. Aetna and Spinco shall each
bear 50% of all fees, costs and expenses in connection with the portions of a
Taxing Authority Proceeding or Contract-Based Tax Proceeding that are
attributable to Tax matters Jointly Decided by Aetna and Spinco.
Notwithstanding any other provision in this Section 8.01(d), in the event that
Aetna or Spinco, whichever party (if either) under this Section 8.01 has
control over a Federal Tax matter, notifies the other party that it is
interested in litigating a Taxing Authority Proceeding with respect to such Tax
matter in the Court of Federal Claims or a district court, such controlling
party shall satisfy the requirement that Tax be paid to the Internal Revenue
Service before such controlling party pursues such Taxing Authority Proceeding
in the Court of Federal Claims or such district court.

     SECTION 8.02. Notification of Claims. (a) The Indemnitee agrees to give
prompt notice to the Indemnitor of the assertion of any claim, or the
commencement of any suit, action or proceeding in respect of which indemnity
may be sought under Section 5.01 or 5.02.

     SECTION 8.03. Settlement of Tax Proceedings. (a) Notwithstanding anything
in this Agreement to the contrary, no settlement of any Taxing Authority
Proceeding or any Contract-Based Tax Proceeding, in each case relating to any
matter that would cause a payment obligation under Section 5.01 or Section
5.02, whichever is applicable, shall be accepted or entered into by or on
behalf of an Indemnitee entitled to indemnification under Section 5.01 or
Section 5.02, unless the applicable Indemnitor consents thereto in writing
(which consent shall not be unreasonably withheld). For purposes of the
preceding sentence, any withholding by an Indemnitor of consent shall be
conclusively treated as being reasonable if the payment obligation under
Section 5.01 or Section 5.02, as the case may be, that would result from the
settlement for the acceptance of which consent is being sought exceeds US$2.5
million.

     (b) The Indemnitor shall consult with the Indemnitee regarding the
settlement of any material Taxing Authority Proceeding or Contract-Based Taxing
Proceeding and shall consider the Indemnitee's views in good faith; provided
that such consultation and consideration shall not affect the determination of
whether the Indemnitor has acted reasonably. If consent is unreasonably
withheld by an Indemnitor with respect to a payment obligation of US$2.5
million or less, all

                                       32
<PAGE>

expenses that relate to the contest of such matter and that are incurred
following such withholding of consent shall be borne by the Indemnitor.

     (c) Subject to Section 8.03(a), if the Indemnitor does not respond to the
Indemnitee's written request for consent within 10 calendar days of receipt of
such request, the Indemnitor shall be deemed to have consented to the
settlement.

                                   ARTICLE 9
                                    PAYMENTS

     SECTION 9.01. Procedure for Making Payments. All payments to be made
pursuant to this Agreement shall be made in immediately available funds. Except
as otherwise provided in this Agreement, all payments required to be made
pursuant to this Agreement shall be due three calendar days after the receipt
of notice of such payment or, where no notice is required, five calendar days
after (i) the fixing of liability, (ii) the Effective Realization of a tax
saving or tax benefit, (iii) the receipt of a refund, or (iv) the resolution of
a dispute, as the case may be. Payments shall be deemed made when received.
Except as otherwise provided in this Agreement, any payment that is not made
when due shall bear interest at the Intercompany Interest Rate for each day
until paid.

                                   ARTICLE 10
                                 MISCELLANEOUS

     SECTION 10.01. Authorization. Each of the parties to this Agreement hereby
represents and warrants that (i) it has the power and authority to execute,
deliver and perform this Agreement, (ii) this Agreement has been duly
authorized by all necessary corporate action on the part of such party, (iii)
this Agreement constitutes a legal, valid and binding obligation of such party,
and (iv) the execution, delivery and performance of this Agreement by such
party does not contravene or conflict with any provision or law or of its
charter or bylaws or any agreement, instrument or order binding on such party.

     SECTION 10.02. Notices. All notices, requests, demands, claims and other
communications to any party hereunder shall be in writing (including facsimile
or similar writing) and shall be deemed given when received addressed as
follows:

                                       33
<PAGE>

     If to Aetna, to:

          Aetna Inc.
          [                             ]
          [                             ]
          Attention: [                         ]
                     Fax: [                    ]

     With copies to:

          Parent
          in c/o ING North America Insurance Corp.
          5780 Powers Ferry Road, NW
          Atlanta, Georgia 30327-4390
          Attention: Michael W. Cunningham
                     Executive Vice President &
                     Chief Financial Officer
                     Fax: 770-980-3303

                     B. Scott Burton
                     Senior Vice President &
                     Chief Counsel
                     Fax: 770-850-7660

                     Boyd G. Combs
                     Senior Vice President
                     Fax: 770-980-3303

          and

          Sullivan & Cromwell
          125 Broad Street
          New York, New York 10004
          Attention: Joseph B. Frumkin, Esq.
                     William D. Torchiana, Esq.
                     Fax: 212-558-3588

                                       34
<PAGE>

     If to Spinco, to:

          Spinco
          151 Farmington Avenue
          Hartford, Connecticut  06156-7505
          Attention: L. Edward Shaw, Jr., Esq.
                     General Counsel
                     Fax: [___________]

                     William J. Casazza, Esq.
                     Corporate Secretary
                     Fax: [___________]

                     Blake W. Martin
                     Vice President, Tax
                     Fax: [___________]

     With a copy to:

          Davis Polk & Wardwell
          450 Lexington Avenue
          New York, New York  10017
          Attention: Lewis B. Kaden, Esq.
                     David L. Caplan, Esq.
                     Fax: 212-450-4800

     If to Parent, to:

          Parent
          in c/o ING North America Insurance Corp.
          5780 Powers Ferry Road, NW
          Atlanta, Georgia 30327-4390
          Attention: Michael W. Cunningham
                     Executive Vice President &
                     Chief Financial Officer
                     Fax: 770-980-3303

                     B. Scott Burton
                     Senior Vice President &
                     Chief Counsel
                     Fax: 770-850-7660

                                       35
<PAGE>

                     Boyd G. Combs
                     Senior Vice President
                     Fax: 770-980-3303

     With copies to:

          Strawinskylaan 2631, 1077 ZZ Amsterdam
          P.O. Box 810
          1000 Av. Amsterdam, the Netherlands
          Attention: Fred Hubbell
                     Executive Board Member
                     Fax: +31-20-541-5402

                     Diederik van Wassenaer
                     General Counsel
                     Fax: +31-20-541-8723

          and

          Sullivan & Cromwell
          125 Broad Street
          New York, New York 10004
          Attention: Joseph B. Frumkin, Esq.
                     William D. Torchiana, Esq.
                     Fax: 212-558-3588

     Any party may, by written notice so delivered to the other parties, change
the address to which delivery of any notice shall thereafter be made.

     SECTION 10.03. Amendments; No Waivers. (a) Any provision of this Agreement
may be amended or waived if, but only if, such amendment or waiver is (i) in
writing, and (ii) signed, in the case of an amendment, by each party to this
Agreement or, in the case of a waiver, by each party against whom the waiver is
to be effective. Parent, Aetna and the other Parent Affiliates shall have the
right, in connection with any of the matters covered by this Agreement or other
Tax matters, to make additional arrangements among themselves without the
approval of Spinco, so long as the rights of the Spinco Affiliates under this
Agreement are not adversely affected by such additional arrangements. Spinco
and the other Spinco Affiliates shall have the right, in connection with any of
the matters covered by this Agreement or other Tax matters, to make additional
arrangements among themselves without the approval of Parent or Aetna, so long
as the rights of Parent and the Parent Affiliates under this Agreement are not
adversely affected by such additional arrangements.

                                       36
<PAGE>

     (b) No failure or delay by any party in exercising any right, power or
privilege hereunder shall operate as a waiver thereof, nor shall any single or
partial exercise thereof preclude any other or further exercise thereof or the
exercise of any other right, power or privilege. The rights and remedies herein
provided shall be cumulative and not exclusive of any rights or remedies
provided by law.

     SECTION 10.04. Expenses. Except as specifically otherwise provided in this
Agreement or any other Distribution Document, all fees, costs and expenses
incurred in connection with this Agreement shall be paid by the party incurring
such fees, costs or expenses. Without limiting the generality of the preceding
sentence, no Spinco Affiliate shall be obligated to make any payment to Aetna
for preparing Returns of the Aetna Consolidated Group or for acting, in
accordance with Section 2.02 of this Agreement, as agent, coordinator and
administrator of the members of the Health Group.

     SECTION 10.05. Successors and Assigns; No Third Party Beneficiaries. The
provisions of this Agreement shall be binding upon and inure only to the
benefit of the parties hereto, the Parent Affiliates and the Spinco Affiliates
(and their respective successors and assigns, whether by merger, acquisition of
assets or otherwise, and including without limitation any successor succeeding
to the tax attributes of such corporation under applicable law); provided that,
except as set forth in this Agreement, no party may assign, delegate or
otherwise transfer any of its rights or obligations under this Agreement
without the prior written consent of each of the other parties hereto. This
Agreement is not intended to benefit any person other than (i) the parties
hereto and their respective successors and assigns and (ii) the other Parent
Affiliates and the other Spinco Affiliates and their respective successors and
assigns; and no such other person shall be a third party beneficiary of this
Agreement.

     SECTION 10.06. Governing Law. This Agreement shall be construed in
accordance with and governed by the law of the State of Delaware, without
regard to the conflicts of law rules thereof.

     SECTION 10.07. Counterparts; Effectiveness. This Agreement may be signed
in any number of counterparts, each of which shall be an original, with the
same effect as if the signatures thereto and hereto were upon the same
instrument. This Agreement shall become effective upon the consummation of the
Distribution; provided that each party hereto shall have received, prior to
such consummation, from each of the other parties hereto a counterpart hereof
signed by such other party.

                                       37
<PAGE>

     SECTION 10.08. Entire Agreement. This Agreement, the Merger Agreement, the
Confidentiality Agreement and the other Distribution Documents constitute the
entire understanding of the parties with respect to the subject matter hereof
and thereof and supersede all prior agreements, understandings and
negotiations, both written and oral, between the parties with respect to the
subject matter hereof and thereof. No representation, inducement, promise,
understanding, condition or warranty not set forth herein or in the other
Distribution Documents has been made or relied upon by any party hereto. To the
extent that the provisions of this Agreement are inconsistent with the
provisions relating to Taxes of any other Distribution Document, the provisions
of this Agreement shall prevail.

     SECTION 10.09. Dispute Resolution. If the parties hereto are unable to
resolve any disagreement or dispute relating to this Agreement within 10
calendar days after senior Tax officials of the parties have conferred,
consulted and in good faith attempted to resolve such disagreement or dispute
(which conference, consultation or attempt shall not be withheld), such
disagreement or dispute shall be resolved by an accounting firm or law firm, in
each case which firm is nationally recognized as expert in tax matters and is
mutually acceptable to the parties hereto (a "Referee"). A Referee so chosen
shall resolve any such disagreement pursuant to such procedures as it may deem
advisable. Any such resolution shall be binding on the parties to this
Agreement without further recourse. In resolving a disagreement or dispute, the
Referee shall take into account the provisions (including without limitation
Section 8.01 and Section 8.03) and principles of this Agreement. The costs of
any Referee shall be allocated between Aetna and Spinco as determined by such
Referee in a manner that such Referee deems reasonable (taking into account,
among other things, the circumstances of the dispute, the conduct of the
parties and the results of the dispute).

     SECTION 10.10. Jurisdiction. Any Spinco-Aetna Tax Proceeding may be
brought in the United States District Court for the District of Delaware, and
each of the parties hereby consents to the jurisdiction of such courts (and of
the appropriate appellate courts therefrom) in any Spinco-Aetna Tax Proceeding
and irrevocably waives, to the fullest extent permitted by law, any objection
it may now or hereafter have (i) to the laying of the venue of any Spinco-Aetna
Tax Proceeding in any such court, or (ii) that any Spinco-Aetna Tax Proceeding
which is brought in any such court has been brought in an inconvenient forum.
Process in any Spinco-Aetna Tax Proceeding may be served on any party anywhere
in the world, whether within or without the jurisdiction of any such court.
Without limiting the foregoing, each party agrees that service of process on
such party as provided in Section 10.01 shall be deemed effective service of
process on such party in connection with any Spinco-Aetna Tax Proceeding.

                                       38
<PAGE>

     SECTION 10.11. Further Assurances. Aetna, Parent and Spinco shall execute,
acknowledge and deliver (or cause to be executed, acknowledged and delivered)
such documents, and take such other action, as may be necessary or advisable to
carry out their obligations under this Agreement and under any document
delivered pursuant hereto.

     SECTION 10.12. Severability. If any one or more provisions of this
Agreement (or the application of any such provisions to any party or any
circumstances) should be held to be invalid, illegal or unenforceable in any
respect, the validity, legality and enforceability of the remaining provisions
contained in this Agreement (and/or the application of the invalid, illegal or
unenforceable provisions other than to such party or such circumstances) shall
not in any way be affected or impaired thereby. The parties shall endeavor in
good faith negotiations to replace the invalid, illegal or unenforceable
provisions so that the replacement provisions shall be valid, legal and
enforceable and shall have an economic effect which comes as close as possible
to that of the invalid, illegal or unenforceable provisions.

     SECTION 10.13. Survival. All rights and obligations arising hereunder
(including without limitation the representations and covenants set forth in
Article 4) shall survive until they are fully effectuated or performed.
Notwithstanding anything in this Agreement to the contrary, this Agreement
shall remain in effect and its provisions shall survive for the full period of
all applicable statutes of limitation (giving effect to any extension or waiver
thereof).

     SECTION 10.14. Captions. The captions herein are included for convenience
of reference only and shall be ignored in the construction or interpretation
hereof.

     SECTION 10.15. Specific Performance. Each party to this Agreement
acknowledges and agrees that damages for a breach or threatened breach of any
of the provisions of this Agreement would be inadequate and irreparable harm
would occur. In recognition of this fact, each party agrees that, if there is a
breach or threatened breach, in addition to any damages, any of the
nonbreaching parties to this Agreement, without posting any bond, shall be
entitled to seek and obtain equitable relief in the form of specific
performance, temporary restraining order, temporary or permanent injunction,
attachment, or any other equitable remedy which may then be available to
obligate the breaching party (i) to perform its obligations under this
Agreement, or (ii) if the breaching party is unable, for whatever reason, to
perform its obligations, to take any other actions as are necessary, advisable
or appropriate to give the other parties to this Agreement the economic effect
which comes as close as possible to the performance of such obligations.

                                       39
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Tax Sharing
Agreement to be duly executed by their respective authorized officers as of the
date first above written.

                                    AETNA INC.

                                    By:
                                       ---------------------------------------
                                       Name:
                                       Title:

                                    AETNA U.S. HEALTHCARE, INC.

                                    By:
                                       ---------------------------------------
                                       Name:
                                       Title:

                                    ING AMERICA INSURANCE HOLDINGS, INC.

                                    By:
                                       ---------------------------------------
                                       Name:
                                       Title:

                                       40EXHIBIT 10.3

                           EMPLOYEE BENEFITS AGREEMENT

                                     between

                                   Aetna Inc.

                                       and

                           Aetna U.S. Healthcare, Inc.

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

                           Dated as of [      ], 2000

<PAGE>

                           EMPLOYEE BENEFITS AGREEMENT

           EMPLOYEE BENEFITS AGREEMENT (the "Agreement") dated as of __________,
2000, among Aetna Inc., a Connecticut corporation (together with its successors,
"AI") and Aetna U.S. Healthcare, Inc., a Pennsylvania corporation (together with
its successors, "AUSHC") (AI and AUSHC, the "Aetna Companies").

                              W I T N E S S E T H :
                              - - - - - - - - - -

           WHEREAS, AI has decided to consolidate the assets and operations of
its health care businesses and certain other businesses worldwide into AUSHC and
its subsidiaries and affiliates and to distribute the Common Stock of AUSHC to
the holders of AI capital stock (the "Distribution"); and

           WHEREAS, in furtherance of the foregoing, AI and AUSHC have entered
into a distribution agreement, dated as of the date of this agreement (the
"Distribution Agreement"), and certain other agreements that will govern certain
matters relating to the Distribution and the relationship of AI and AUSHC and
their respective Subsidiaries following the Distribution; and

           WHEREAS, pursuant to the Distribution Agreement, AI and AUSHC have
agreed to enter into this Agreement for the purpose of allocating assets,
liabilities, and responsibilities with respect to certain employee compensation
and benefit plans and programs between them;

           NOW, THEREFORE, in consideration of the mutual promises contained
herein and in the Distribution Agreement, the Parties (as that term is defined
in the Distribution Agreement) agree as follows:

                                    ARTICLE 1
                                   DEFINITIONS

           SECTION 1.01. Definitions (a) The following terms, as used herein,
shall have the following meanings:

           "Action" means any claim, suit, action, arbitration, inquiry,
investigation or other proceeding of any nature (whether criminal, civil,
legislative, administrative, regulatory, prosecutorial or otherwise) by or
before any arbitrator or Governmental Entity or similar Person or body.

                                        2

<PAGE>

           "Affiliate" means Affiliate as such term is defined in the
Distribution Agreement.

           "AI Business" means the Aetna Business as such term is defined in the
Distribution Agreement.

           "AI Companies" means AI and the AI Subsidiaries.

           "AI Employee Group" means all AI Employees and AI Non-U.S.
Employees.

           "AI Employees" means each Person who (x), except with respect to up
to 4 Persons orally identified by AUSHC to AI and ING America Insurance
Holdings, Inc. to whom AUSHC may offer employment, which offer is accepted,
prior to the Distribution Date, is actively employed in the AI Business in the
United States who is listed on the payroll records of any of the AI Companies on
the Distribution Date, (y) is on short-term disability leave, authorized leave
of absence, military service or lay-off with recall rights, in each case in the
United States, as of the Distribution Date and who was last actively employed in
the AI Business by an AI Company (such inactive employees shall be offered
employment by an AI Company as of the date they return to active employment), or
(z) is listed on Schedule 1 hereto as an AI Employee and, in each case, their
respective beneficiaries. AI, AUSHC and ING America Insurance Holdings, Inc.
shall cooperate and mutually agree on the Persons to be listed on Schedule 1 and
those individuals who shall be considered AI Employees pursuant to clause (y)
above, the following sentence and Article 9 hereof. The foregoing
notwithstanding, AI Employees shall include any Person who was last actively
employed in the AI Business and who, on the Distribution Date, is receiving
salary continuation or severance benefits from any AI Company, the liability for
which such benefits is accrued on the books and records of any AI Company.

           "AI Equity-Based Plans" means the Aetna Inc. 1998 Stock Incentive
Plan and the Aetna Inc., 1996 Stock Incentive Plan.

           "AI ERISA Affiliate" means any entity that, together with AI and
after giving effect to the Restructuring, would be treated as a single employer
under Section 414 of the Code.

           "AI Non-U.S. Employees" means each Person who, on the Distribution
Date, (x) is actively employed in the AI Business outside the United States by
any AI Company, (y) is on short-term disability leave, authorized leave of
absence, military service or lay-off with recall rights, in each case outside
the United States, as of the Distribution Date and who was last actively
employed in the AI

                                        3

<PAGE>

Business by an AI Company (such inactive employees shall be offered employment
by an AI Company as of the date they return to active employment), or (z) is an
inactive or former employee and who was last actively employed in the AI
Business by an AI Company outside the United States including any Person who has
been on long-term disability leave or unauthorized leave of absence or who has
terminated his or her employment, retired or died on or before the Distribution
Date.

           "AI Stock" means the Common Stock, without par value, of AI.

           "AI Stock Value" means the closing per-share price of AI Stock as
listed on the NYSE on the last trading day before the Distribution Date.

            "AI Subsidiaries" means the Subsidiaries of AI (determined after
giving effect to the Restructuring).

           "AUSHC Business" means the Spinco Business as such term is defined in
the Distribution Agreement.

           "AUSHC Companies" means AUSHC and the AUSHC Subsidiaries.

           "AUSHC Employee Group" means all AUSHC Employees and AUSHC Retirees.

           "AUSHC Employees" means any Person employed or formerly employed with
any of the Aetna Companies or any of their Subsidiaries, other than AUSHC
Retirees and Persons that are part of the AI Employee Group.

           "AUSHC ERISA Affiliate" means any entity that, together with AUSHC
and after giving effect to the Restructuring, would be treated as a single
employer under Section 414 of the Code.

           "AUSHC Retirees" means each Person who was employed by any of the
Aetna Companies or their Subsidiaries immediately prior to such Person's
retirement or other termination of employment from the Aetna Companies and their
Subsidiaries and who is not otherwise a member of the AI Employee Group, and
their respective beneficiaries.

           "AUSHC Stock" means the common stock, par value $.005 per share, of
AUSHC.

           "AUSHC Subsidiaries" means the Subsidiaries of AUSHC (determined
after giving effect to the Restructuring).

                                        4

<PAGE>

           "Close of the Distribution Date" means 11:59:59 P.M., Eastern
Standard Time or Eastern Daylight Time (whichever shall then be in effect), on
the Distribution Date.

           "Closing Date" means the Closing Date as such term is defined in the
Merger Agreement.

           "COBRA" means the continuation coverage requirements for "group
health plans" under Title X of the Consolidated Omnibus Budget Reconciliation
Act of 1985, as amended, and as codified in Code ss. 4980B and ERISA ss.ss. 601
through 608.

           "Code" means the Internal Revenue Code of 1986, as amended, or any
successor federal income tax law. Reference to a specific Code provision also
includes any proposed, temporary, or final regulation in force under that
provision.

           "Distribution" means Distribution as such term is defined in the
Distribution Agreement.

           "Distribution Agreement" means the Distribution Agreement between AI
and AUSHC, to which this Agreement is Exhibit A.

           "Distribution Date" means Distribution Date as such term is defined
in the Distribution Agreement.

           "Distribution Documents" mean Distribution Documents as such term is
defined in the Distribution Agreement.

           "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, or any successor federal labor or employment law. Reference to a
specific ERISA provision also includes any proposed, temporary, or final
regulation in force under that provision.

           "FMLA" means the Family Leave and Medical Act of 1993, as amended.

           "Governmental Entity" means Governmental Entity as such term is
defined in the Distribution Agreement.

           "HMO" means a health maintenance organization that provides benefits
under the New AI Health and Welfare Plans or the AUSHC Health and Welfare Plans,
as the case may be.

                                        5

<PAGE>

           "Immediately after the Distribution Date" means 12:00 A.M., Eastern
Standard Time or Eastern Daylight Time (whichever shall then be in effect), on
the day after the Distribution Date.

           "Liabilities" means any and all claims, debts, liabilities,
assessments, fines, penalties, damages, losses, disgorgements and obligations,
of any kind, character or description (whether absolute, fixed, contingent,
matured, not matured, liquidated, unliquidated, accrued, known, unknown, direct,
indirect, derivative or otherwise) whenever arising, all costs and expenses
relating thereto (including, but not limited to, all reasonable expenses of
investigation, all reasonable attorneys' fees and all reasonable out-of-pocket
expenses in connection with any Action or threatened Action).

           "Merger Agreement" means the Agreement and Plan of Restructuring and
Merger dated as of        , 2000, among AI, ING America Insurance Holdings, Inc.
and ANB Acquisition Corp.

           "Pension Plan" means the Retirement Plan for Employees of Aetna
Services, Inc.

           "Person" means Person as defined in the Distribution Agreement.

           "Restructuring" means Restructuring as such term is defined in the
Distribution Agreement.

           "Savings Plan" means the Aetna Services, Inc. Incentive Savings Plan

           "Specified Participant" means any AI Employee who was a "Transition
Participant" in the Pension Plan and who on December 31, 2000 (x) will have at
least 9 years of service (calculated as 8 years and 22 weeks of service) and is
less than 50 years of age or (y) will have at least 5 years of service
(calculated as 4 years and 22 weeks of service) and is at least 50 years old and
less than 62 years old.

           "Subsidiary" means, with respect to any Person, any entity of which
securities or other ownership interests having ordinary voting power to elect a
majority of the board of directors or other persons performing similar functions
are directly or indirectly owned by such Person.

           "Supplemental Plans" means the Aetna Services, Inc. Supplemental
Incentive Savings Plan and the Aetna Services, Inc. Supplemental Pension Benefit
Plan (amended and restated as of January 1, 1999).

                                        6

<PAGE>

           "Transition Period" means, the period during which AUSHC provides to
AI transition services pursuant to the Distribution Agreement or any Exhibits
thereto.

           (b) Each of the following terms is defined in the Section set forth
opposite such term:

TERMS                                                                SECTION

Adjusted Transfer Amount                                               3.03
Aeltus Arrangements                                                    4.11
Agent                                                                  6.01
AI Aeltus Liabilities                                                  4.11
AI Assumed Liabilities                                                 6.01
AI Bonus Liabilities                                                   2.04
AI DC Plan Liabilities                                                 3.01
AI Deferred Compensation Liabilities                                   3.02
AI Gross-Up Liabilities                                                4.10
AI Health and Welfare Liabilities                                      4.01
AI International Liabilities                                           5.02
AI Phantom Liabilities                                                 4.11
AI Retiree Health and Life Liabilities                                 4.02
AI Supplemental Liabilities                                            3.02
AI WCP Liabilities                                                     4.06
AUSHC Aeltus Liabilities                                               4.11
AUSHC Assumed Plans                                                    2.02
AUSHC Bonus Liabilities                                                2.04
AUSHC DCSAP                                                            4.13
AUSHC Deferred Compensation Liabilities                                3.02
AUSHC Foreign Phantom Liabilities                                      4.11
AUSHC Gross-Up Liabilities                                             4.10
AUSHC HCSAP                                                            4.13
AUSHC Health and Welfare Liabilities                                   4.01
AUSHC Health and Welfare Plans                                         4.01
AUSHC International Liabilities                                        5.02
AUSHC Phantom Liabilities                                              4.11
AUSHC Retained Liabilities                                             6.01
AUSHC WCP Liabilities                                                  4.06
AUSHC's Actuary                                                        3.03
DB Plan                                                                3.03
DC Plan                                                                3.01
Direct Rollover                                                        3.01
Director Liabilities                                                 Art. 5
Gross-Up Payments                                                      4.10
Initial Transfer Amount                                                3.03
New AI Plans                                                           2.03
New AI Health and Welfare Plans                                        4.01
PBGC                                                                   3.03
Plan Rate                                                              3.03
Phantom Arrangements                                                   4.11
PTO                                                                    4.16

                                        7

<PAGE>

Retained Retiree Health and Life Liabilities                           4.02
Retained Pension Liabilities                                           3.03
Retained Savings Plan Liabilities                                      3.01
Retained Supplemental Liabilities                                      3.02
Scheduled Bonus Plans                                                  2.04
Supplemental Retirement Plan                                           3.02
Supplemental Savings Plan                                              3.02
Transfer Amount                                                        3.03
Transferred Benefits                                                   3.03
True-Up Amount                                                         3.03
True-Up Date                                                           3.03

                                    ARTICLE 2
       EMPLOYEES; ASSUMPTION AND/OR ADOPTION OF PLANS; OPTION ADJUSTMENTS

           SECTION 2.01. Employees Except as provided in Section 6.22 of the
Merger Agreement, no provision of this Agreement shall require AI or AUSHC or
any of their respective Subsidiaries to continue the employment of any of their
respective employees following the Distribution Date.

           SECTION 2.02.  Assumption by AUSHC of Certain Plans

            (a) Effective as of the Close of the Distribution Date, AI and AUSHC
shall take such actions as may be required to cause AUSHC, or an AUSHC
Subsidiary, to assume responsibility for and become the sponsor of, and AI or
the relevant AI Subsidiary to cease, except as otherwise provided herein, to be
responsible for, or be the sponsor of, and to cease to be a "participating
employer" in or otherwise have any Liability in respect of, all of the Aetna
Companies and their Subsidiaries employee benefit plans and arrangements set
forth on Schedule 3 hereto (it is anticipated that the plans listed on Schedule
3 shall include all plans listed on Section 5.01(h)(i) of the Company Disclosure
Letter to the Merger Agreement, except to the extent such plans only cover
members of the AI Employee Group) ("AUSHC Assumed Plans").

            (b) Effective as of the Close of the Distribution Date, AI and AUSHC
shall take such actions as may be required to cause AUSHC, or an AUSHC
Subsidiary, to be substituted for Aetna Services, Inc. as a party to the trust
agreement established under, and forming a part of, the Savings Plan.

            (c) Effective as of the Close of the Distribution Date, AI and AUSHC
shall take such actions as may be required to cause AUSHC, or an AUSHC
Subsidiary, to be substituted for Aetna Services, Inc. (or other relevant party)
as a party to the trust agreement established under, and forming a part of, the
Pension Plan or any other AUSHC Assumed Plan.

                                       8

<PAGE>

           SECTION 2.03.  Adoption of Comparable Plans

            (a) Effective Immediately after the Distribution Date, AI shall
adopt, or cause to be adopted, employee benefit plans, arrangements and policies
for AI Employees, that provide benefits with respect to periods after the
Distribution Date that in the aggregate are comparable to the employee benefit
plans, arrangements and policies (listed in the March 12, 2000 amendments to the
Severance and Salary Continuation, Benefits Plan, and also including PTO) made
available to such Employees immediately prior to the Distribution Date, provided
that nothing shall prevent AI from terminating or amending such plans except as
otherwise provided in Sections 3.03 and 7.01 hereof.

            (b) Effective Immediately after the Distribution Date, subject to
ss. 2.03(a) AI may adopt, or cause to be adopted, any other employee benefit
plans and arrangements for AI Employees, or may elect to participate in the
plans and programs of any purchaser of the AI Stock.

            (c) The employee benefit plans and arrangements adopted in
accordance with the immediately preceding two paragraphs shall be collectively
known as the "New AI Plans". AI shall identify to AUSHC the names of the New AI
Plans as soon as practicable after the Distribution Date. The New AI Plans shall
be, with respect to AI Employees, in all respects the successors in interest to,
and shall not provide benefits that are duplicative of benefits provided by, any
corresponding AUSHC Assumed Plans. AI and AUSHC shall agree on methods and
procedures, including amending the respective plan documents, to prevent AI
Employees from receiving duplicate benefits from the New AI Plans and the AUSHC
Assumed Plans. With respect to AI Employees, each New AI Plan specified in (a)
above and any other benefit plan, arrangement or policy applicable after the
Distribution Date to AI Employees shall provide that all service, compensation,
and other benefit-affecting determinations, as of the Close of the Distribution
Date, that were otherwise recognized under the corresponding AUSHC Assumed Plan
(for periods immediately before the Close on the Distribution Date) shall, as of
Immediately after the Distribution Date, receive full recognition and credit to
the extent the recognition or credit can validly be taken into account under the
New AI Plan to the same extent as if those items occurred under the New AI Plans
specified in (a) above and any other benefit plan, arrangement or policy
applicable after the Distribution Date to AI Employees, except to the extent
that duplication of benefits would result. AUSHC shall provide appropriate data
to AI about such past service.

           SECTION 2.04.  AI Equity-Based Plan Assumption; Option Adjustments;
Bonus Payments

                                       9

<PAGE>

            (a) In connection with the Restructuring and Distribution and
effective as of the Distribution Date, AI and AUSHC shall cause the AI
Equity-Based Plans to be assumed by AUSHC and amended to reflect the
Distribution and Restructuring; provided, however, that AI shall be responsible
for any Liabilities to AI Employees for (x) "Incentive Units" under the AI
Equity-Based Plans and (y) the Aetna Performance Excellence Unit Plan, in each
case to the extent accrued on the books and records of AI and any assets
allocated to such Liabilities shall be transferred to AI.

           (b) (i) In connection with the Restructuring and Distribution and
           effective as of the Distribution Date, AI and AUSHC shall cause each
           employee stock option to purchase AI Stock outstanding under the AI
           Equity-Based Plans and held by each member of the AI Employee Group,
           whether or not vested or exercisable, to be equitably adjusted to
           reflect the Distribution and to be converted into the right to
           receive cash from AUSHC. At or as soon as practicable following the
           Distribution Date, AI and AUSHC shall cause each such option to be
           cancelled. It is understood that each such holder shall receive,
           subject to applicable withholding, a benefit at least equal to the
           amount, if any, by which the AI Stock Value exceeds the option
           exercise price.

               (ii) In connection with the Restructuring and Distribution and
           effective as of the Distribution Date, AI and AUSHC shall cause each
           option to acquire AI Stock held by members of the AUSHC Employee
           Group under the AI Equity-Based Plans and all other options to
           acquire AI Stock not subject to ss. 2.04(b)(i) to (x) be equitably
           adjusted to reflect thE Distribution, (y) converted into an option to
           purchase AUSHC Stock or receive cash and (z) cease to relate to AI
           Stock. Each such AUSHC Option may continue to have and be subject to
           the same terms and conditions set forth in the AI Equity-Based Plans
           and as provided in the respective option agreements governing such AI
           options as of the Distribution Date. Neither AI nor any Affiliate
           shall have any Liability with respect to such options or, except as
           provided in Section 2.04(a), under the AI Equity-Based Plans or the
           Aetna Performance Excellence Unit Plan.

            (c) AI shall assume Liability for all annual bonus payments to AI
Employees under the "Scheduled Bonus Plans" (designated as such on Schedule 3)
to the extent accrued on the books and records of any AI Company (such
Liabilities, the "AI Bonus Liabilities") and any assets allocated to such
Liabilities shall be transferred to AI. AUSHC shall assume Liability for all
bonus payments in excess of the AI Bonus Liabilities (including amounts in
excess of amounts so accrued on the books and records of any AI Company relating
to transaction bonus program payments referred to in ss. 5.1(f) of the Company
Disclosure Letter

                                       10

<PAGE>

provided in connection with the Merger Agreement), notwithstanding the
foregoing, AUSHC shall have no Liabilities for any bonus payments to AI
Employees in excess of the target bonus amount so accrued for such AI Employees
(such Liabilities, the "AUSHC Bonus Liabilities").

                                    ARTICLE 3
                     SAVINGS, SUPPLEMENTAL AND PENSION PLANS

           SECTION 3.01.  The Savings Plan

            (a) (i) AUSHC shall retain all Liabilities and obligations in
respect of benefits accrued by each member of the AI Employee Group under the
Savings Plan until, in the case of AI Employees, such Liabilities are
transferred to and assumed by the DC Plan as described below. Prior to such
transfer, AUSHC and AI shall work together to develop a process whereby AI
Employees who have loans outstanding under the Savings Plan will be permitted to
continue to make periodic repayments on such outstanding loans through a
reduction of salary paid by AI and AI remitting such payments to the Savings
Plan on a timely basis (including AI charging such AI employees a reasonable
administrative fee, if any, for such services).

                (ii) Prior to the Distribution Date, AI or an AI ERISA Affiliate
           shall adopt (in consultation with ING America Insurance Holdings,
           Inc.) a savings plan for the benefit of AI Employees that is
           substantially similar to the Savings Plan and is intended to qualify
           under Section 401(a) of the Code (the "DC Plan"). For at least twelve
           months after the Distribution Date the DC Plan shall permit deferrals
           and require matching contributions at least equal to those provided
           under the Savings Plan immediately prior to the Distribution Date to
           the extent permissible under applicable law and without altering any
           benefit under any other plan maintained by AI or any AI ERISA
           Affiliate. As soon as practicable after the Distribution Date
           (provided that (A) AI has received a favorable determination letter
           from the Internal Revenue Service to the effect that the DC Plan
           meets the requirements for qualification under Section 401(a) of the
           Code (or a certification by AI, reasonably satisfactory to AUSHC, to
           such effect), (B) AUSHC has received a favorable determination letter
           from the Internal Revenue Service to the effect that the Savings Plan
           meets the requirements for qualification under Section 401(a) of the
           Code (or a certification by AUSHC, reasonably satisfactory to AI, to
           such effect), and (C) the applicable regulatory filing requirements
           have been met) (1) AUSHC shall cause the Savings Plan accounts of AI
           Employees then employed by AI or

                                       11

<PAGE>

           any AI ERISA Affiliate which are held by the Saving Plan's related
           trust to be transferred to the DC Plan and its related trust, and AI
           shall cause those transferred accounts to be accepted by the DC Plan
           and its related trust and (2) the DC Plan shall assume and be solely
           responsible for Liabilities only with respect to transferred accounts
           of such AI Employees (all such assumed liabilities "AI DC Plan
           Liabilities");. Such transfer shall be in-kind to the maximum extent
           practicable and shall not favor participants who are AUSHC Employees
           over participants who are AI Employees; provided, however, that AUSHC
           shall use its reasonable efforts to effect an equitable partition of
           the Stable Value Fund. Any DC Plan fund relating to AUSHC Stock shall
           be administered so as to permit transfers out of, but not additions
           to, such fund.

            (b) After the Distribution Date, AUSHC shall retain all assets and
Liabilities under the Savings Plan except as otherwise provided in Section
3.01(a) ("Retained Savings Plan Liabilities").

           SECTION 3.02.  Supplemental Plans and Deferred Compensation Plans

            (a) (i) Effective Immediately after the Distribution Date, all
Liabilities accrued on the books and records of any AI Company with respect to
the Supplemental Plans to the extent applicable to any AI Employee and any
assets allocable to such Liabilities shall be transferred to and assumed by AI
effective as of Immediately after the Distribution Date ("AI Supplemental
Liabilities") under the New AI Plans that correspond to the Supplemental Plans.

          (ii) All other Liabilities under the Supplemental Plans shall be
transferred to and assumed or otherwise retained by AUSHC ("Retained
Supplemental Liabilities").

            (b) (i) AI shall assume and be responsible for all deferred
compensation plan Liabilities accrued on the books and records of any AI Company
with respect to any member of the AI Employee Group ("AI Deferred Compensation
Liabilities") and any assets allocated to such Liabilities shall be transferred
to AI.

           (ii) AUSHC shall assume and be responsible, for all other deferred
compensation plan Liabilities whenever incurred, accrued in respect of any
member of the AI Employee Group (except as provided in (i)) and in respect of
each AUSHC Employee Group member ("AUSHC Deferred Compensation Liabilities").

          (iii) AUSHC and AI shall cooperate to ensure that no deferred
compensation amount is distributed prematurely in respect of any AI Employee.

                                       12

<PAGE>

           SECTION 3.03.  Pension Plan

            (a) Subject to completion of the asset transfer specified in ss.
3.03(b), effective as of Immediately after the Distribution Date, AI shall adopt
or become a participating employer in a defined benefit plan intended to qualify
under Section 401(a) of the Code (the "DB Plan"), and AI shall designate
effective as of the Distribution Date such plan as a plan for the benefit of AI
Employees who immediately prior to the Distribution Date participated in the
Pension Plan and shall cause the DB Plan to provide benefits and entitlements as
of the Distribution Date and, except as provided below, for the twelve month
period beginning on the Distribution Date, to such AI Employees which are at
least substantially equivalent to the benefits and entitlements provided to such
AI Employee under the Pension Plan immediately prior to the Distribution Date
and under which (x) each such AI Employee is given credit under the DB Plan for
service to the extent recognized immediately prior to the Distribution Date by
the Pension Plan, for all purposes, including eligibility, vesting, benefit
accrual, eligibility for early retirement, subsidized early retirement and death
benefits, (y) each such AI Employee is given credit under the DB Plan for
service with AI after the Distribution Date for purposes of vesting and early
retirement eligibility in respect of the Transferred Benefits, and (z) each AI
Employee who was a "Transition Participant" (as defined in the Pension Plan) in
the Pension Plan on the Distribution Date will have his or her pay with AI (or
an AI ERISA Affiliate) after the Distribution Date recognized through December
31, 2006 using the Pension Plan's "transition final average pay" formula in
calculating his or her minimum DB Plan benefit. In calculating a Transition
Participant's otherwise applicable DB Plan benefit, the transition final average
pay benefit shall apply as a minimum benefit. If AI does not recognize service
through December 31, 2006 in the DB Plan in calculating the "transition final
average pay" formula minimum benefit for Specified Participants, then AI will
use reasonable efforts to provide, in the aggregate, the economic equivalent
impact of such benefits under the DC Plan (only taking into account the
incremental employer contributions), the DB Plan and/or such other retirement
benefit plans or arrangements as AI may establish.

            (b) As soon as practicable after the Distribution Date, AUSHC shall
cause to be transferred from the Pension Plan an amount to the DB Plan an amount
in cash or other assets acceptable to AI and the trustee of the DB Plan at least
equal to all accrued benefits and other liabilities of the Pension Plan relating
to AI Employees (the "Transferred Benefits"), calculated as of the Distribution
Date, in the form and manner described below. Following the completion of the
transfer of assets and liabilities from the Pension Plan to the DB Plan as
provided herein, AUSHC and its Affiliates shall have no further liability
whatsoever (either under this Agreement or otherwise) with respect to such
benefits of the AI

                                       13

<PAGE>

Employees under the Pension Plan. As of the Distribution Date, AUSHC shall cause
AI Employees to cease further accrual of benefits under the Pension Plan.

               (i) AUSHC shall cause Hewitt Associates LLC ("AUSHC's Actuary")
          to determine the value of the Transferred Benefits under ss. 414(l) of
          the Code as if the Pension Plan were terminated on the Distribution
          Date using the safe harbor assumptions that would be used by the PBGC
          upon plan termination (assuming no ancillary benefits have been
          amended out of the Pension Plan prior to such calculation) except that
          the Pension Plan's actuarial valuation turnover assumptions (as used
          in the Hewitt Associates report dated June 7, 2000) shall be used (the
          "Transfer Amount"), but in no event shall such Transfer Amount be less
          than (i) the minimum amount needed to satisfy the requirements of ss.
          414(l) of the Code or (ii) if greater, the projected benefit
          obligation for the AI Employees (as determined under SFAS 87 using the
          same actuarial assumptions and methods used in AI's 2000 financial
          statements), to the extent permitted by Section 414(l) of the Code.

               (ii) The actuarial calculation of the liabilities as well as
          assumptions and methodologies used to calculate such liability
          underlying the Transfer Amount determined by AUSHC's Actuary shall be
          subject to review and challenge by an actuarial firm designated by AI.
          In the event those two actuaries cannot agree, the matter will be sent
          to a third independent actuary for the final determination. Promptly
          after the Closing Date, (provided that (A) AUSHC has received a
          certification by AI, reasonably satisfactory to AUSHC, to the effect
          that the DB Plan meets the requirements for qualification under
          Section 401(a) of the Code, (B) AI has received a certification by
          AUSHC, reasonably satisfactory to AI, to the effect that the Pension
          Plan meets the requirements for qualification under Section 401(a) of
          the Code, and (C) the applicable regulatory filing requirements have
          been met), AUSHC shall cause to be transferred from the trust for the
          Pension Plan to the trust established for the DB Plan, an amount equal
          to 85% of the amount reasonably estimated by AUSHC's Actuary in good
          faith to be equal to the Transfer Amount (the "Initial Transfer
          Amount"). As soon as practicable after the final determination of the
          Transfer Amount (the "True-Up Date"), AUSHC shall cause a second
          transfer to be made to the DB Plan, in cash, of the "True-Up Amount".
          The True-Up Amount shall be a positive amount equal to the Transfer
          Amount minus the sum of (i) the Initial Transfer Amount and (ii)
          distributions, if any, from, and reasonable expenses of administration
          (consistent with past practice) under, the Pension Plan for benefits
          or other purposes made with respect to AI Employees from the Closing
          Date through the True-Up Date plus interest on the True-Up

                                       14

<PAGE>

           Amount at the rate of the 5%, compounded annually (the "Plan Rate")
           from and including the Closing Date through but excluding the True-Up
           Date or, in the case of distributions and reasonable administrative
           expenses, from and including the Closing Date through the date such
           distribution is made or such expense is paid.

               (iii) If for any reason the Initial Transfer Amount exceeds the
           Transfer Amount, then on the True-Up Date or as soon thereafter as
           practicable, AI shall cause the DB Plan to transfer to the Pension
           Plan an amount, in cash, equal to the amount by which the Initial
           Transfer Amount exceeds the Transfer Amount, plus interest thereon
           from and including the Closing Date through but excluding the True-Up
           Date (or, if later, the date on which such amount is transferred to
           the Pension Plan) at the Plan Rate, plus an amount equal to
           distributions, if any, from, and reasonable expenses of
           administration (consistent with past practice) under, the Pension
           Plan for benefits or other purposes made with respect to AI Employees
           from the Distribution Date through the date of such transfer adjusted
           for interest at the Plan Rate, consistent with the approach set forth
           in (ii) above.

            (c) AUSHC and AI shall cooperate after the Distribution Date so as
to ensure the proper administration of the Pension Plan and the DB Plan.

            (d) Notwithstanding any provision of this Agreement to the contrary,
if at any time before the Distribution Date, the PBGC asserts any issue with
respect to the Pension Plan, AUSHC may, in its sole discretion (i) enter into
negotiations with the PBGC to resolve any such issues and, upon satisfactorily
resolving such issues, AUSHC shall fully comply with the terms of this Article;
(ii) reach such other agreement as may be satisfactory to AI and AUSHC or (iii)
take such actions in lieu of the transfer of assets and liabilities contemplated
above as AUSHC may deem appropriate; provided, however, that any such actions
under this sub-section (iii) shall not have an adverse financial impact on ING
America Insurance Holdings, Inc. or AI.

                                    ARTICLE 4
                            HEALTH AND WELFARE PLANS

           SECTION 4.01.  Assumption of Health and Welfare Plan Liabilities;
General Provisions

                                       15

<PAGE>

            (a) Effective as of Immediately after the Distribution Date and
except as provided in Section 4.02(a), all Liabilities to or relating to claims
incurred after the Distribution Date by each AI Employee under the "AUSHC Health
and Welfare Plans" (designated as such on Schedule 3 hereto) shall cease to be
Liabilities of the AUSHC Health and Welfare Plans and shall be transferred to
and assumed by AI as of Immediately after the Distribution Date ("AI Health and
Welfare Liabilities") under the New AI Plans that correspond to the AUSHC Health
and Welfare Plans (the "New AI Health and Welfare Plans" (designated as such on
Schedule 5 hereto)). AUSHC shall retain all other Liabilities, including claims
relating to AI Employees incurred but unreported prior to the Distribution Date
under the AUSHC Health and Welfare Plans ("AUSHC Health and Welfare
Liabilities").

            (b) Notwithstanding Section 4.01, all treatments which have been
precertified for or are being provided to an AI Employee as of the Distribution
Date, to the extent not provided in a New AI Health and Welfare Plan, shall be
provided without interruption under the appropriate AUSHC Health and Welfare
Plan until such treatment is concluded or discontinued pursuant to applicable
plan rules and limitations (but not beyond December 31, 2001), but AI shall
continue to be responsible for all Liabilities relating to, arising out of or
resulting from such on-going treatments as of the Distribution Date.

            (c) AI shall cause the New AI Health and Welfare Plans to recognize
and maintain all coverage and contribution elections made by AI Employees under
the AUSHC Health and Welfare Plans as of the Distribution Date and apply such
elections under the New AI Health and Welfare Plans for the remainder of the
period or periods for which such elections are by their terms applicable. The
transfer or other movement of employment from AUSHC to AI at any time before the
Close of the Distribution Date shall neither constitute nor be treated as a
"status change" under the AUSHC Health and Welfare Plans or the New AI Health
and Welfare Plans.

            (d) AI shall cause the New AI Health and Welfare Plans to recognize
and give credit for all amounts applied to deductibles, out-of-pocket maximums,
and other applicable benefit coverage limits with respect to which such expenses
have been incurred by AI Employees under the AUSHC Health and Welfare Plans for
the remainder of the year in which the Distribution Date occurs to the extent
recognized under the comparable AUSHC Health and Welfare Plans.

            (e) AI shall provide coverage to AI Employees under the New AI
Health and Welfare Plans without the need to undergo a physical examination or
otherwise provide evidence of insurability to the extent recognized under the
comparable AUSHC Health and Welfare Plans.

                                       16

<PAGE>

            (f) AI shall cause the New AI Health and Welfare Plans to recognize
and credit all service of each AI Employee recognized by the corresponding AUSHC
Health and Welfare Plan before the Close of the Distribution Date for all
purposes, including, but not limited to, severance, disability and PTO.

           SECTION 4.02.  Post-retirement Health and Life Insurance Benefits

            (a) AUSHC shall be responsible for providing to AI Employees who are
eligible to receive post-retirement medical or dental or life insurance
coverages under the AUSHC Health and Welfare Plans were they to retire
immediately before the Close of the Distribution Date and all members of the
AUSHC Employee Group such coverage under the AUSHC Health and Welfare Plans
("Retained Retiree Health and Life Liabilities"). Nothing shall prevent AUSHC
from amending or terminating such plans.

           (b) AI shall provide to AI Employees not eligible for coverage
pursuant to sub-section (a) above, post-retirement medical, dental or life
insurance coverages under the New AI Health and Welfare Plans equivalent to
coverage provided to similarly situated employees of ING America Insurance
Holdings, Inc. ("AI Retiree Health and Life Liabilities") and, except as
provided in ss. 6.01(b)(v), shall have no obligations or Liabilities in respect
of such medical, dental or life insurance coverages whether or not assumed by
AUSHC.

           SECTION 4.03. Effect of Change in Rates AUSHC and AI shall use their
reasonable efforts to cause each of the insurance companies, HMOs, point-of-
service vendors and third-party administrators providing services and benefits
under the AUSHC Health and Welfare Plans and the New AI Health and Welfare Plans
to maintain the premium and/or administrative rates based on the aggregate
number of participants in both the AUSHC Health and Welfare Plans and the New AI
Health and Welfare Plans through the expiration of the financial fee or rate
guarantees in effect as of the Close of the Distribution Date under the
respective contracts, policies, and agreements separately rated or adjusted for
the demographics, experience or other relevant factors related to the covered
participants of AUSHC and AI, respectively. To the extent they are not
successful in such efforts, AUSHC and AI shall each bear the revised premium or
administrative rates attributable to the individuals covered by their respective
health and welfare plans.

           SECTION 4.04.  COBRA and HIPPA

           (a) AUSHC shall be responsible for administering compliance with the
health care continuation coverage requirements of COBRA and the AUSHC

                                       17

<PAGE>

Health and Welfare Plans with respect to all members of the AUSHC Employee
Group.

            (b) Effective as of Immediately after the Distribution Date, AI
shall solely be responsible for administering compliance with the health care
continuation coverage requirements of COBRA and the New AI Health and Welfare
plans with respect to AI Employees who have a qualifying event within the
meaning of COBRA at any time beginning Immediately after the Distribution Date.

            (c) For periods before the Distribution Date, AUSHC shall be
responsible for administering compliance with the portability requirements under
the Health Insurance Portability and Accountability Act of 1996 with respect to
AI Employees and other employees and former employees of the AI and
beneficiaries and dependents thereof and AI shall be responsible for filing all
necessary employee change notices with respect to AI Employees in accordance
with applicable AUSHC policies and procedures. Effective immediately after the
Distribution Date, AI shall be solely responsible for administering compliance
with such health care continuation coverage and portability requirements with
respect to AI Employees, and AUSHC shall be solely responsible for administering
compliance with such requirements with respect to members of the AUSHC Employee
Group.

           SECTION 4.05.  Leave of Absence Programs and FMLA

            (a) AUSHC shall be responsible for administering compliance with the
AUSHC leave of absence programs and FMLA with respect to each member of the
AUSHC Employee Group.

            (b) Effective as of Immediately after the Distribution Date: (i) AI
shall adopt, and shall cause each AI Company to adopt, leave of absence
programs; (ii) AI shall honor, and shall cause each AI Company to honor, all
terms and conditions of leaves of absence which have been granted to any AI
Employee under an AUSHC leave of absence program or FMLA before the Distribution
Date by AI, including such leaves that are to commence after the Distribution
Date; (iii) AI and each AI Company shall be solely responsible for administering
leaves of absence and compliance with FMLA with respect to their employees; and
(iv) AI and each AI Company shall recognize all periods of service of each AI
Employee with the Aetna Companies or any of their Subsidiaries, as applicable,
to the extent such service is recognized by AUSHC for the purpose of eligibility
for leave entitlement under the AUSHC leave of absence programs and FMLA.

                                       18

<PAGE>

            (c) As soon as administratively possible and not later than the
Distribution Date, AUSHC shall provide to AI copies of all records pertaining to
the AUSHC leave of absence programs and FMLA with respect to all AI Employees to
the extent such records have not been provided previously to AI or an AI
Company.

           SECTION 4.06.  AUSHC Workers' Compensation Program

            (a) AI shall assume and be responsible for all workers' compensation
Liabilities relating to AI Employees to the extent accrued on the books and
records of any AI Company (the "AI WCP Liabilities") and any assets allocated to
such Liabilities shall be transferred to AI.

            (b) AUSHC shall assume and be responsible for all workers
compensation Liabilities in respect of members of the AUSHC Employee Group and
worker's compensation Liabilities in respect of AI Employees that are not AI WCP
Liabilities, ("AUSHC WCP Liabilities")

            (c) AI and AUSHC shall cooperate with respect to the issuance of
new, or transfer of, existing workers' compensation policies and licenses.

           SECTION 4.07.   Flexible Benefit Plans

            (a) To the extent any AI Employee contributed to an account under
the AUSHC Health Care Spending Account Plan ("AUSHC HCSAP") during the calendar
year that includes the Distribution Date, effective as of Immediately after the
Distribution Date, AUSHC shall transfer to the corresponding New AI Health and
Welfare Plan the account balances of AI Employees for such calendar year under
the AUSHC HCSAP, regardless of whether the account balance is positive or
negative.

            (b) To the extent any AI Employee contributed to the AUSHC Dependant
Care Spending Account Plan ("AUSHC DCSAP") during the calendar year that
includes the Distribution Date, effective as of Immediately after the
Distribution Date, AUSHC shall transfer to the corresponding New AI Health and
Welfare Plan the account balances of AI Employees for such calendar year in the
AUSHC DCSAP Plan.

           SECTION 4.08. PTO Policy During the calendar year in which the
Distribution Date occurs, each AI Employee shall be permitted under the relevant
New AI Plan to accrue paid time off ("PTO") days calculated under the relevant
AUSHC Health and Welfare Plan's PTO policy immediately before the Close of the
Distribution Date, and to use such PTO days during such calendar year as if

                                       19

<PAGE>

the Distribution Date had not occurred, or to carry over to the following
calendar year five such PTO days.

           SECTION 4.09. Application of Article 4 to the AI Companies Any
reference in this Article 4 to "AI" shall include a reference to the AI
Companies when and to the extent AI has caused an AI Company to (a) become a
party to a vendor contract, group insurance contract, or HMO letter agreement
associated with a New AI Health and Welfare Plan, (b) become a self-insured
entity for the purposes of one or more New AI Health and Welfare Plans, (c)
assume all or a portion of the liabilities or administrative responsibilities
for benefits which arose before the Distribution Date under an AUSHC Health and
Welfare Plan and which were expressly assumed by AI pursuant to the terms of
this Agreement, or (d) take any other action, extend any coverage, assume any
other liability or fulfill any other responsibility that AI would otherwise be
required to take under the terms of this Article 4, unless it is clear from the
context that the particular reference is not intended to include an AI Company.
In all such instances in which a reference in this Article 4 to "AI" includes a
reference to an AI Company, AI shall be responsible to AUSHC for ensuring that
the AI Company complies with the applicable terms of this Agreement.

           SECTION 4.10.  Gross-Up Liabilities

            (a) AUSHC shall assume and be responsible for Liabilities for any
gross-up or tax reimbursement payments in respect in Section 4999 of the Code
("Gross-Up Payments") that become payable (x) with respect to any member of the
AI Employee Group solely as a result of the consummation of the transactions
contemplated by the Merger Agreement or (y) at any time with respect to any
member of the AUSHC Employee Group ("AUSHC Gross-Up Liabilities").

            (b) AI shall assume and be responsible for Liabilities for Gross-up
Payments that become payable with respect to any member of the AI Employee Group
as a result of any actual or constructive termination of employment upon or
following consummation of the transactions contemplated by the Merger Agreement
("AI Gross-Up Liabilities").

            (c) AI shall cause an accounting or actuarial firm to initially
determine the amount of any Gross-Up Payments and the amount of AI Gross-Up
Liabilities, if any. AUSHC shall, designate an accounting or actuarial firm to
review such determinations. In the event these two accounting or actuarial firms
cannot agree, the matter will be referred to a third independent accounting or
actuarial firm for their final determination.

                                       20

<PAGE>

           SECTION 4.11.  Certain Phantom Equity Payments

            (a) (i) AI shall assume and be responsible for Liabilities relating
to phantom equity payments in respect of all Chile and Taiwan phantom equity
plans, agreements or arrangements (the "Phantom Arrangements") in an amount
equal to the sum of (x) and (y), where (x) equals $5,000,000 and (y) equals the
amount accrued on the books and records of any AI Company in respect of the
Phantom Arrangements (such sum, the "AI Foreign Phantom Liabilities") and any
assets allocated to such Liabilities shall be transferred to AI.

               (ii) AI shall assume and be responsible for Liabilities relating
          to Aeltus Investment Management phantom equity plans, agreements or
          arrangements (the "Aeltus Arrangements") to the extent accrued on the
          books and records of any AI Company ( the "AI Aeltus Liabilities") and
          any assets allocated to such Liabilities shall be transferred to AI.

            (b) AUSHC shall assume and be responsible for all Liabilities
relating to (x) the Phantom Arrangements in excess of the AI Phantom Liabilities
(such excess, the "AUSHC Foreign Phantom Liabilities") and (y) all Liabilities
relating to the Aeltus Arrangements that are not AI Aeltus Liabilities (the
"AUSHC Aeltus Liabilities") (the AUSHC Foreign Phantom Liabilities and AUSHC
Aeltus Liabilities, the "AUSHC Phantom Liabilities")

                                    ARTICLE 5
            NON-EMPLOYEE DIRECTOR BENEFITS AND INTERNATIONAL BENEFITS

           SECTION 5.01. Effective as of the Close of the Distribution Date, AI
and AUSHC shall take such action as may be required to cause AUSHC to assume
responsibility for and become the sponsor of, and AI to cease to be responsible
for Liabilities under or related to, or be the sponsor of, the AI Director
Deferred Stock and Deferred Compensation Plan, AI Director Charitable Award
Program, AI Director Health Insurance Arrangements, AI Director Life Insurance
Arrangements and Director Long-Term Care Arrangements ("Director Liabilities").

           SECTION 5.02. AI shall assume and be responsible for all employee
benefit Liabilities relating to Aetna International, Inc. and its Subsidiaries
to the extent funded (provided such funds are transferred to an AI Company) or
accrued on the books and records of any AI Company (the "AI International
Liabilities") and any assets allocated to such liabilities shall be transferred
to AI. AUSHC shall assume and be responsible for all employee benefit
Liabilities relating to

                                       21

<PAGE>

Aetna International, Inc. and its Subsidiaries, other than AI International
Liabilities (the "AUSHC International Liabilities").

                                    ARTICLE 6
                        GENERAL ALLOCATION OF LIABILITIES

           SECTION 6.01.  Allocation of Liabilities Generally

            (a) Subject to the terms and conditions of this Agreement, effective
as of the Close of the Distribution Date, AUSHC shall assume and agree to pay
when due, honor and discharge, the following Liabilities, whether incurred
before, on or after the Distribution Date ("AUSHC Retained Liabilities"):

               (i) all Liabilities arising under any employment, separation or
           retirement agreement or arrangement to the extent applicable to any
           member of the AUSHC Employee Group, who is not otherwise a member of
           the AI Employee Group;

               (ii) the AUSHC Assumed Plans, AI Equity-Based Plans, Retained
          Retiree Health and Life Liabilities, Retained Savings Plan
          Liabilities, Retained Supplemental Liabilities, AUSHC Phantom
          Liabilities, AUSHC Bonus Liabilities, AUSHC Gross-Up Liabilities,
          AUSHC Deferred Compensation Liabilities, AUSHC WCP Liabilities,
          Director Liabilities, AUSHC International Liabilities and AUSHC Health
          and Welfare Liabilities;

               (iii) all Liabilities arising under any other employee benefit
          plan or arrangement maintained at any time after the Distribution Date
          by any of the AUSHC Companies to the extent applicable to any member
          of the AUSHC Employee Group;

               (iv) all Liabilities arising under any federal, state, local or
          foreign law, order or regulation (including, without limitation, ERISA
          and the Code) to the extent they relate to participation by any member
          of the AUSHC Employee Group in any AUSHC Assumed Plan, whether
          relating to events occurring on, prior to or after the Close of the
          Distribution Date or arising by reason of the transactions
          contemplated by this Agreement or otherwise;

                                       22

<PAGE>

               (v) all statutory Liabilities to any member of the AUSHC Employee
           Group, which arise, directly or indirectly, by reason of the
           transactions contemplated by this Agreement;

               (vi) all Liabilities to agents in respect of non-qualified
          pension benefits except to the extent assumed by AI except pursuant to
          Section 6.01(b)(v); and

               (vii) All Liabilities attributable to actions specified to be
          taken by AUSHC under this Agreement.

            (b) Subject to the terms and conditions of this Agreement, effective
as of Immediately after the Distribution Date, AI shall assume and agree to pay
when due, honor and discharge, the following Liabilities, whether incurred
before, on or after the Distribution Date ("AI Assumed Liabilities"):

               (i) all Liabilities arising under any employment, separation or
          retirement agreement or arrangement to the extent applicable to any
          member of the AI Employee Group or to any other Person not a member of
          the AUSHC Employee Group which has been established or entered into by
          any AI Company other than the Retained Savings Plan Liabilities;

               (ii) the New AI Plans, the DB Plan, AI Supplemental Liabilities,
          AI Bonus Liabilities, AI DC Plan Liabilities, AI Retiree Health and
          Life Liabilities, Transferred Benefits, AI Deferred Compensation
          Liabilities, AI WCP Liabilities, AI Gross-Up Liabilities, AI Phantom
          Liabilities, AI International Liabilities and AI Health and Welfare
          Liabilities;

               (iii) all Liabilities arising under any other employee benefit
          plan or arrangement maintained at any time after the Distribution Date
          by any of the AI Companies to the extent applicable to any member of
          the AI Employee Group;

               (iv) all Liabilities arising under any federal, state, local or
          foreign law, order or regulation (including, without limitation, ERISA
          and the Code) to the extent they relate to participation by any member
          of the AI Employee Group in any New AI Plan, relating to events
          occurring on or after the time Immediately after the Distribution
          Date;

               (v) all Liabilities accrued on the books and records of any AI
          Company to, directly or indirectly, current or former independent
          contractors or statutory employees who at any time performed services
          as insurance agents for an AI Company in connection with the AI
          Business

                                       23

<PAGE>

          ("Agents") (it being understood that prior to the Distribution Date
          AUSHC shall cause to be transferred to AI assets previously intended
          to support Liabilities relating to certain Agents under a
          non-qualified defined benefit plan, which such amount of assets
          equaled approximately $42 million as of December 31, 1999, which
          actual amount of such assets shall be deemed accrued);

               (vi) all statutory Liabilities to any member of the AI Employee
          Group which arises, directly or indirectly, by reason of the
          transactions contemplated by this Agreement;

          (vii) all Liabilities accrued on the books and records of any AI
          Company under benefit plans maintained outside the United States to
          the extent they relate to members of the AUSHC Employee Group for
          services performed outside the United States; and

          (viii) all Liabilities attributable to actions specified to be taken
          by AI under this Agreement;

           SECTION 6.02. Method of Settlement Notwithstanding anything herein to
the contrary, to the extent possible any transfer or assumption of Liabilities
pursuant to this Article 6 shall be effected, prior to the Distribution Date,
through a corresponding adjustment in the relevant intercompany account balances
of the parties hereto.

           SECTION 6.03.  Further Assurances

            (a) On and after the date hereof, AUSHC will, at the reasonable
request of AI, execute, acknowledge and deliver all such endorsements,
assurances, consents, assignments, transfers, conveyances, powers of attorney
and other instruments and documents, and take such other actions necessary (i)
to assign, transfer, convey and deliver to AI, acting in its fiduciary capacity,
all the assets to be transferred to AI pursuant to this Agreement and (ii) to
assist AI in obtaining the consent and approval of all Governmental Entities and
other Persons required to be obtained by AI to effect the transfer thereof and
the assumption of the AI Assumed Liabilities by AI or otherwise appropriate to
carry out the transactions contemplated hereby.

            (b) On and after the date hereof, AI will, at the reasonable request
of AUSHC, execute, acknowledge and deliver all such endorsements, assurances,
consents, assignments, transfers, conveyances, powers of attorney and other
instruments and documents, and take such other actions necessary (i) to assign,
transfer, convey and deliver to AUSHC, acting in its fiduciary capacity, all the

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<PAGE>

assets to be transferred to AUSHC pursuant to this Agreement, and (ii) to assist
AUSHC in obtaining the consent and approval of all Governmental Entities and
other Persons required to be obtained by AUSHC to effect the transfer thereof
and the assumption of the AUSHC Retained Liabilities by AUSHC or otherwise
appropriate to carry out the transactions contemplated hereby.

                                    ARTICLE 7
                                    COVENANTS

           SECTION 7.01. Certain Covenants (a) AI shall (x) employ or cause the
AI Employees to be employed in the AI Business at positions and with
responsibilities substantially consistent with their respective positions and
responsibilities immediately prior to the Distribution Date after giving effect
to the Distribution (but disregarding any decrease in responsibilities as a
result of AI no longer being a publicly traded entity), and (y) from the
Distribution Date until the end of the twelve month period following the
Distribution Date, maintain or cause to be maintained employee compensation and
benefit plans and arrangements, including bonus opportunities, for the benefit
of the AI Employee Group that, except as provided below, provide benefits with
respect to periods after the Distribution Date that in the aggregate are
comparable to the compensation and benefit plans and arrangements referred to in
Section 2.03(a). Following such twelve month period, members of the AI Employee
Group shall be entitled to the same treatment as is accorded similarly situated
other employees of AI or any acquiror of AI stock and its Subsidiaries.

            (b) Without limiting the provisions of Section 7.01 above, from the
Distribution Date until the end of the twenty-four month period following the
Distribution Date, AI shall (x) not, without the consent of the affected AI
Employee, materially reduce any AI Employee's base salary or (y) provide or
cause to be provided to each member of the AI Employee Group severance and
related benefits at least equal to the severance and related benefits available
to such member immediately prior to the Distribution Date.

            (c) Without limiting the provisions of Section 7.01(a) above, from
the Distribution Date until the end of the twelve month following the
Distribution Date AI shall provide or cause to be provided each AI Employee
either (x) tax qualified and non-tax qualified defined contribution and defined
benefit plan benefits equivalent to such benefits made available to each such AI
Employee immediately prior to the Distribution Date, or (y) the cash equivalent
thereof.

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<PAGE>

            (d) Members of the AI Employee Group shall participate after the
Distribution Date in equity-based programs sponsored by AI or any acquiror of AI
Stock to the same extent as similarly situated other employees of AI or such
acquiror and its Subsidiaries, giving consideration to other benefits provided
to such employees.

                                    ARTICLE 8
                                 INDEMNIFICATION

           With respect to indemnification, the parties hereto agree as set
forth in the Distribution Agreement.

                                    ARTICLE 9
                                CERTAIN EMPLOYEES

           SECTION 9.01. Certain Dedicated IT Persons Schedule 6 sets forth the
names of up to 85 Persons in the information technology area whose activities
have primarily supported the AI Business that AI agrees to employ as soon as
practicable after the date hereof and in any event prior to the Distribution
Date. In the event that any such Person ceases to be employed by AI on or
Immediately before the Distribution Date for any reason, AUSHC shall have the
right to designate such Person's replacement on such Schedule. Persons who,
after the Distribution Date are on such Schedule, shall be considered AI
employees for all purposes hereunder.

           SECTION 9.02. Certain Supporting IT Persons Prior to the end of the
Transition Period, AUSHC shall provide to AI a list of up to 35 Persons who,
during the Transition Period, provided significant information technology
services in respect of the AI Business for AI and its Subsidiaries and who, if
not hired by AI prior to the end of such Period, shall be entitled to severance
benefits from AI at least equal to the severance benefits available to
similarly-situated AI Employees, taking into account each such Person's service
and compensation with the AUSHC Companies. If hired by AI, any such Person shall
be considered an AI employee for all purposes hereunder.

           SECTION 9.03. Certain Business Resources Prior to the end of the
Transition Period, AUSHC shall provide to AI a list of up to 80 Persons who,
during the Transition Period, performed significant headquarters-related
management services in respect of the AI Business for AI and its Subsidiaries
and

                                       26

<PAGE>

who, if not hired by AI prior to the end of such Period, shall be entitled to
severance benefits from AI at least equal to the severance benefits available to
similarly-situated AI Employees, taking into account each such Person's service
and compensation with the AUSHC Companies. If hired by AI, any such Person shall
be considered an AI employee for all purposes hereunder.

           SECTION 9.04. Certain Tax, Audit and Financial Controls Persons Prior
to the Closing Date, ING America Insurance Holdings, Inc., AI and AUSHC shall
identify at least 26 and not more than 35 Persons employed by AUSHC in the tax,
audit and financial controls areas who performed significant services for the AI
Business, if not hired by AI immediately prior to the Closing Date, shall be
entitled to severance benefits from AI at least equal to the severance benefits
available to similarly-situated AI Employees, taking into account each such
Person's service and compensation with the AUSHC Companies. If hired by AI, any
such Person shall be considered an AI employee for all purposes hereunder.

                                   ARTICLE 10
                               GENERAL PROVISIONS

           SECTION 10.01.  Notices

           All notices and other communications to any party hereunder shall be
in writing (including telecopy or similar writing) and shall be deemed given
when received addressed as follows:

           If to AI, to:

                     Aetna Inc.
                     151 Farmington Avenue
                     Hartford, Connecticut 06156
                     Telecopy:  860-273-8340
                     Attention: General Counsel
                                Head of Human Resources
                                Corporate Secretary

                                       27

<PAGE>

           With a copy to:

           If to AUSHC, to:

                     Aetna U.S. Healthcare, Inc.

                     151 Farmington Avenue
                     Hartford, Connecticut 06156
                     Telecopy:         860-273-8340
                     Attention: General Counsel
                                Head of Human Resources
                                Corporate Secretary

           With a copy to:

                     Davis Polk & Wardwell
                     450 Lexington Avenue
                     New York, New York  10017
                     Telecopy: (212) 450-4800
                     Attention: David L. Caplan

           If to ING America Insurance Corp., to:

                     ING North America Insurance Corp.
                     5780 Powers Ferry Road, NW
                     Atlanta, Georgia 30327-4390
                     Attention:  Michael W. Cunningham
                                 Executive Vice President &
                                 Chief Financial Officer
                                 Fax: 770-980-3303

                                 B. Scott Burton
                                 Senior Vice President &
                                 Chief Counsel
                                 Fax: 770-850-7660

           With copies to:

                     ING Groep N.V.
                     Strawinskylaan 2631, 1077 ZZ Amsterdam,
                     P.O. Box 810,
                     1000 Av. Amsterdam, the Netherlands
                     Attention:  Fred Hubbell

                                       28

<PAGE>

                                 Executive Board Member
                                 Fax: +31-20-541-5402

                                 Diederik van Wassenaer
                                 General Counsel
                                 Fax: +31-20-541-8723

                     and

                     Sullivan & Cromwell
                     125 Broad Street
                     New York, New York 10004
                     Attention:  Joseph B. Frumkin, Esq.
                                 William D. Torchiana, Esq.
                                 Fax: 212-558-3588

           Any party may, by written notice so delivered to the other parties,
change the address to which delivery of any notice shall thereafter be made.

           SECTION 10.02. Amendments; No Waivers (a) Any provision of this
Agreement may be amended or waived if, and only if, such amendment or waiver is
in writing and signed, in the case of an amendment, by AI and AUSHC, or in the
case of a waiver, by the party against whom the waiver is to be effective.

            (b) No failure or delay by any party in exercising any right, power
or privilege hereunder shall operate as a waiver thereof nor shall any single or
partial exercise thereof preclude any other or further exercise thereof or the
exercise of any other right, power or privilege. The rights and remedies herein
provided shall be cumulative and not exclusive of any rights or remedies
provided by law.

           SECTION 10.03. Successors and Assigns The provisions of this
Agreement shall be binding upon and inure to the benefit of the parties hereto
and their respective successors and assigns; provided that neither party may
assign, delegate or otherwise transfer any of its rights or obligations under
this Agreement without the consent of the other parties hereto.

           SECTION 10.04. Governing Law This Agreement shall be construed in
accordance with and governed by the law of the State of New York, without regard
to the conflict of laws rules thereof.

           SECTION 10.05. Counterparts; Effectiveness This Agreement may be
signed in any number of counterparts, each of which shall be an original, with
the same effect as if the signatures thereto and hereto were upon the same
instrument.

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<PAGE>

This Agreement shall become effective when each party hereto shall have received
a counterpart hereof signed by the other parties hereto.

           SECTION 10.06. Entire Agreement This Agreement and the other
Distribution Documents constitute the entire understanding of the parties with
respect to the subject matter hereof and thereof and supersedes all prior
agreements, understandings and negotiations, both written and oral, between the
parties with respect to the subject matter hereof and thereof. No
representation, inducement, promise, understanding, condition or warranty not
set forth herein or in the other Distribution Documents has been made or relied
upon by any party hereto. Neither this Agreement nor any provision hereof is
intended to confer upon any Person other than the parties hereto any rights or
remedies hereunder.

           SECTION 10.07. Jurisdiction Any suit, action or proceeding seeking to
enforce any provision of, or based on any matter arising out of or in connection
with, this Agreement or the transactions contemplated hereby may be brought in
the United States District Court for the Southern District of New York or any
other New York State court sitting in New York County, and each of the parties
hereby consents to the jurisdiction of such courts (and of the appropriate
appellate courts therefrom) in any such suit, action or proceeding and
irrevocably waives, to the fullest extent permitted by law, any objection which
it may now or hereafter have to the laying of the venue of any such suit, action
or proceeding in any such court or that any such suit, action or proceeding
which is brought in any such court has been brought in an inconvenient forum.
Process in any such suit, action or proceeding may be served on any party
anywhere in the world, whether within or without the jurisdiction of any such
court. Without limiting the foregoing, each party agrees that service of process
on such party as provided in Section 8.01 shall be deemed effective service of
process on such party.

           SECTION 10.08. No Third Party Beneficiaries Nothing contained in this
Agreement is intended to confer upon any person or entity other than the parties
hereto and their respective successors and permitted assigns, any benefit, right
or remedies under or by reason of this Agreement.

           SECTION 10.09. Headings The Section and other headings contained in
this Agreement are for reference purposes only and shall not in any way affect
the meaning or interpretation of this Agreement.

           SECTION 10.10. Severability The invalidity or unenforceability of any
provisions of this Agreement in any jurisdiction shall not affect the validity,
legality or enforceability of the remainder of this Agreement in such
jurisdiction or the validity, legality or enforceability of this Agreement,
including any such

                                       30

<PAGE>

provision, in any other jurisdiction, it being intended that all rights and
obligations of the parties hereunder shall be enforceable to the fullest extent
permitted by law.

           SECTION 10.11. Schedules AI, ING America Insurance Holdings, Inc. and
AUSHC shall cooperate and mutually agree on each of the Schedules to this
Agreement. Subject to Ivy America's consent, which consent shall not
unreasonably be withheld, AI and AUSHC shall have the right to amend or
supplement the information set forth in any Schedule hereto from time to time
until two business days prior to the Distribution Date.

           SECTION 10.12. Cooperation and Coordination The parties agree to
share, and furnish each other with, such information concerning employees and
employee benefit plans, and to take all such other action, as is necessary and
appropriate to effect the transactions contemplated hereby, and to coordinate,
in advance, the time, form and content of communications to current and former
employees of the parties relating to such transactions.

           SECTION 10.13. Withholdings The party that is responsible for making
a payment hereunder shall be responsible for making the appropriate
withholdings, if any, attributable to such payments.

           SECTION 10.14. Accruals (a) Where the extent of AI's Liabilities are
limited to the extent funded (provided such funds are transferred to AI) or the
amounts accrued, such Liabilities shall be equal to such funding or (x) the
amount accrued and allocated to the AI Business on the March 31, 2000 Balance
Sheet specified in the Merger Agreement (as set forth and separately identified
on Schedule 7) plus or minus (y) except with respect to an accrual of
approximately $13.3 million in the aggregate of AI Supplemental Liabilities and
AI Deferred Compensation Liabilities (provided that AUSHC transfers
approximately $3.9 million of cash to AI to support the international portion of
such Liabilities), the amount properly accrued or paid after March 31, 2000 to
the extent that such amount relates solely to services performed during the
period between March 31, 2000 and the Distribution Date and without regard to
any modifications to the terms of such plans, agreements or arrangements after
March 31, 2000 (except as otherwise agreed to by ING America Insurance Holdings,
Inc.) (such amounts to be set forth and separately identified on Schedule 7).

            (b) Where AUSHC's Liabilities are limited to the amounts in excess
of the accruals referenced in (a) above, such Liabilities shall relate solely to
that period of time ending on the Distribution Date.

           SECTION 10.15. Assets Allocated to Assumed Liabilities. Transfers of
assets that are allocated to Liabilities that are assumed by AI shall not be
treated

                                       31

<PAGE>

as part of the Net Capital Contribution Amount under Section 4.1 of the Merger
Agreement (such transfers to be separately identified and set forth on Schedule
7).

           IN WITNESS WHEREOF, the parties hereto have duly executed this
Agreement as of the date first above written.

                                               AETNA U.S. HEALTHCARE, INC.

                                               By:
                                                 -------------------------------
                                                 Name:
                                                 Title:
                                                 [Address/Fax]

                                               AETNA INC.

                                               By:
                                                 -------------------------------
                                                 Name:
                                                 Title:
                                                 [Address/Fax]

                                       32

<PAGE>

                          SCHEDULES TO EMPLOYEE BENEFIT
                        ASSUMPTION AND SERVICES AGREEMENT

Schedule 1           Scheduled AI Employees
Schedule 2           [RESERVED]
Schedule 3           AUSHC Assumed Plans
Schedule 4           Scheduled AUSHC Employees
Schedule 5           New AI Plans
Schedule 6           Certain Dedicated IT Persons
Schedule 7           Accrued AI Liabilities

                                       33

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