EMPLOYMENT AGREEMENT

This sets forth an amendment and  restatement of the  Employment  Agreement made
effective  as of January 1, 1997  between (i)  COMMUNITY  BANK  SYSTEM,  INC., a
Delaware  corporation and registered bank holding  company,  and COMMUNITY BANK,
N.A., a national banking association, both having offices located in Dewitt, New
York (collectively,  the "Employer"),  and (ii) SANFORD A. BELDEN, an individual
currently residing at 9 Lynacres Boulevard, Fayetteville, New York ("Employee").
This  amended and restated  agreement  supersedes  the original  version of this
agreement dated January 1,  1997 and supersedes the employment agreement between
the parties,  effective as of January 1, 1995, which provided for employment for
a term ending on  December 31,  1997.  This  amended and  restated  Agreement is
effective as of October 31, 1999.

                               W I T N E S S E T H

     IN  CONSIDERATION  of the  promises  and mutual  agreements  and  covenants
contained herein, and other good and valuable  consideration,  the parties agree
as follows:

1.    Employment.
      -----------

     (a) Term.  Employer shall continue to employ  Employee,  and Employee shall
continue  to serve,  as  Director,  President  and Chief  Executive  Officer  of
Employer  for a six year  term  commencing  on  January  1,  1997 and  ending on
December 31, 2002 ("Period of  Employment"),  subject to termination as provided
in paragraph 3 hereof.

     (b) Salary. During the period of January 1, 1997 through December 31, 1997,
Employer  shall pay  Employee  base salary at an annual rate of $300,000  ("Base
Salary"). Employee's Base Salary for the period January 1, 1998 through December
31, 1998 shall be  $350,000.  Employee's  Base Salary for the period  January 1,
1999 through December 31, 1999 shall be $400,000. Employee's Base Salary for the
period  January 1, 2000 through  December 31, 2000 shall be $450,000.  Beginning
July 1, 2000,  negotiations  will reopen to determine  base salary for the final
two years of the contract.  Employee's Base Salary is payable in accordance with
Employer's regular payroll practices for executive employees.

     (c)  Salary  Increase  Adjustments.  A  fiscal  year  in  which  Employer's
reportable  Return on Average  Assets  ("ROAA") is less than 1.0%,  exclusive of
non-recurring  charges (as  determined in  accordance  with  generally  accepted
accounting  principles  by the  independent  accounting  firm then  employed  by
Employer to prepare  Employer's  audited  financial  statements),  which charges
shall be discounted from the ROAA calculation,  under this paragraph l(c), shall
be considered  an  "Adjustment  Year."  Employer may  renegotiate  the scheduled
increase in Employee's Base Salary under  Paragraph l(b) of this Agreement,  for
the one year period following an Adjustment Year.

     (d) Incentive Compensation.  Employee shall be entitled to annual incentive
compensation  opportunities  pursuant to the terms of the  Management  Incentive
Plan which has been  approved by the Board of Directors of Employer to cover key
personnel of Employer.  Upon  termination of Employee's  employment  pursuant to
subparagraph  3(a),  3(b),  3(c) or 6, Employee  shall be entitled to a pro rata
portion  (based  on  Employee's  complete  months of  active  employment  in the
applicable  year) of the annual  incentive award that is payable with respect to
the year during which the  termination  occurs or, in the case of a  termination
upon  Employee's   disability  pursuant  to  subparagraph  3(c),  the  date  the
Disability Period began.

     (e)  Renegotiations.  If Employee and Employer  cannot agree on  Employee's
Base Salary and incentive  award for employment  after  December 31, 2000,  then
Employee  shall be entitled to be paid Base Salary and incentive  award equal to
the Base  Salary and  incentive  award paid in 2000  through  the balance of the
contract at December 31, 2002.  Beginning  January 1, 2002 (12 months before the
end of the Period of  Employment),  Employee and Employer  shall  commence  good
faith negotiations,  to be completed by June 30, 2002, for Employee's  continued
employment by Employer after the end of the Period of Employment.

     2.  Duties  during  the  Period of  Employment.  Employee  shall  have full
responsibility, subject to the control of Employer's Board of Directors, for the
supervision  of all  aspects of  Employer's  business  and  operations,  and the
discharge of such other duties and responsibilities to Employer as may from time
to time be  reasonably  assigned to Employee by  Employer's  Board of Directors.
Employee  shall report to the Board of Directors  of  Employer.  Employee  shall
devote Employee's best efforts to the affairs of Employer,  serve faithfully and
to the best of Employee's  ability and devote all of Employee's working time and
attention, knowledge,  experience, energy and skill to the business of Employer,
except that Employee may affiliate with professional associations,  business and
civic organizations. Employee shall serve on the Board of Directors of, or as an
officer of Employer's affiliates,  without additional  compensation if requested
to do so by the Board of Directors of Employer.  Employee shall receive only the
compensation  and other  benefits  described in this  Agreement  for  Employee's
duties as a Director of Employer.

     3.  Termination.  Employee's  employment  by  Employer  shall be subject to
termination as follows:

     (a) Expiration of the Term. This Agreement shall terminate automatically at
the  expiration  of the Period of  Employment  unless the  parties  enter into a
written agreement  extending  Employee's  employment,  except for the continuing
obligations of the parties as specified hereunder.

     (b) Termination Upon Death.  This Agreement shall terminate upon Employee's
death.  In the event this  Agreement  is  terminated  as a result of  Employee's
death,  Employer shall continue  payments of Employee's Base Salary for a period
of 90 days following Employee's death to the beneficiary  designated by Employee
on the "Beneficiary  Designation Form" attached to this Agreement as Appendix A.
Employee's  beneficiary  shall  be  free  to  dispose  of any  restricted  stock
previously granted to Employee by Employer.  Additionally,  Employer shall treat
as immediately exercisable all unexpired stock options held by Employee that are
not exercisable or that have not been exercised, so as to permit the Beneficiary
to purchase the balance of Community  Bank System,  Inc.  ("CBSI") Stock not yet
purchased pursuant to said options until the end of the exercise period provided
in the original grant of the option right.

     (c) Termination Upon Disability. Employer may terminate this Agreement upon
Employee's disability.  For the purpose of this Agreement,  Employee's inability
to perform  Employee's  duties hereunder by reason of physical or mental illness
or injury for a period of 26 successive  weeks (the  "Disability  Period") shall
constitute  disability.  The  determination  of  disability  shall  be made by a
physician selected by Employer and a physician  selected by Employee;  provided,
however,   that  if  the  two  physicians  so  selected  shall   disagree,   the
determination of disability shall be submitted to arbitration in accordance with
the  rules of the  American  Arbitration  Association  and the  decision  of the
arbitrator shall be binding and conclusive on Employee and Employer.  During the
Disability Period,  Employee shall be entitled to 100% of Employee's Base Salary
otherwise  payable  during that period,  reduced by any other  benefits to which
Employee may be entitled for the Disability Period on account of such disability
(including, but not limited to, benefits provided under any disability insurance
policy or program,  worker's  compensation  law, or any other benefit program or
arrangement).  Upon termination pursuant to this disability provision,  Employee
shall  be  free  to  dispose  of  any  restricted  stock  granted  to  Employee.
Additionally,  Employer  shall treat as  immediately  exercisable  all unexpired
stock  options held by Employee that are not  exercisable  or that have not been
exercised,  so as to permit the  Employee to purchase  the balance of CBSI Stock
not yet purchased  pursuant to said options until the end of the exercise period
provided in the original grant of the option right.

     (d) Termination  for Cause.  Employer may terminate  Employee's  employment
immediately  for "cause" by written  notice to  Employee.  For  purposes of this
Agreement,  a termination  shall be for "cause" if the termination  results from
any of the following events:

     (i) Material breach of this Agreement;

     (ii) Documented  misconduct as an executive or director of Employer, or any
subsidiary or affiliate of Employer for which  Employee is  performing  services
hereunder including,  but not limited to, misappropriating any funds or property
of any such company,  or  attempting to obtain any personal  profit (x) from any
transaction  to which such company is a party or (y) from any  transaction  with
any third  party in which  Employee  has an  interest  which is  adverse  to the
interest of any such company,  unless, in either case, Employee shall have first
obtained the written consent of the Board of Directors of Employer;

     (iii)  Unreasonable  neglect or refusal to perform  the duties  assigned to
Employee under or pursuant to this Agreement, unless cured within 60 days;

     (iv) Conviction of a crime involving moral turpitude;

     (v) Adjudication as a bankrupt,  which  adjudication has not been contested
in good faith,  unless  bankruptcy is caused  directly by  Employer's  unexcused
failure to perform its obligations under this Agreement;

     (vi) Documented failure to follow the reasonable,  written  instructions of
the Board of  Directors  of  Employer,  provided  that the  instructions  do not
require Employee to engage in unlawful conduct; or

     (vii) Any documented violation of the rules or regulations of the Office of
the   Comptroller   of  the  Currency  or  of  any  other   regulatory   agency.
Notwithstanding  any other term or provision of this  Agreement to the contrary,
if Employee's  employment is terminated  for cause,  Employee  shall forfeit all
rights to payments and benefits  otherwise  provided pursuant to this Agreement;
provided,  however,  that  Base  Salary  shall  be  paid  through  the  date  of
termination.

     (e)  Termination  For  Reasons  Other  Than  Cause.  In the event  Employer
terminates  Employee  prior to December  31, 2002 for reasons  other than cause,
Employee  shall be entitled to severance  equal to the greater of (i) the sum of
the annual Base Salary in effect at the time of termination  and the most recent
payment to Employee under the Management Incentive Plan, or (ii) amounts payable
through the balance of the unexpired term of this Agreement.

     (f)  Employer  shall  have the  right of first  refusal  to  purchase  from
Employee or Employee's  estate,  shares of CBSI stock  acquired  pursuant to the
exercise of stock options after date of  termination,  in the event  Employee or
Employee's estate elects to dispose or transfer such acquired shares. Such right
of first refusal shall expire ten years from the date of termination.

 4.    Fringe Benefits.

     (a)  Benefit  Plans.  During the Period of  Employment,  Employee  shall be
eligible to participate in any employee  pension  benefit plans (as that term is
defined under  Section 3(2) of the Employee  Retirement  Income  Security Act of
1974, as amended),  Employer-paid  group life  insurance  plans,  medical plans,
dental plans, long-term disability plans, business travel insurance programs and
other  fringe  benefit  programs  maintained  by Employer for the benefit of its
executive  employees.  Participation  in any of  Employer's  benefit  plans  and
programs  shall be based on, and  subject to  satisfaction  of, the  eligibility
requirements  and other  conditions  of such plans and  programs.  Employer  may
require Employee to submit to an annual physical, to be performed by a physician
of his own  choosing.  Employee  shall be  reimbursed  for related  expenses not
covered by Employer's health insurance plan, or any other plan in which Employee
is  enrolled.  Employee  shall not be  eligible  to  participate  in  Employer's
Severance  Pay Plan  maintained  for other  employees  not covered by employment
agreements.

     (b) Expenses.  Upon  submission  to Employer of vouchers or other  required
documentation,  Employee shall be reimbursed for Employee's actual out-of-pocket
travel and other expenses reasonably incurred and paid by Employee in connection
with Employee's duties hereunder. Reimbursable expenses must be submitted to the
Personnel  Committee of Employer's  Board of Directors for review on a quarterly
basis.

     (c) Other Benefits. During the Period of Employment, Employee also shall be
entitled to receive the following benefits:

     (i) Paid  vacation of 4 weeks during each calendar year (with no carry over
of unused  vacation to a subsequent  year) and any holidays that may be provided
to all employees of Employer in accordance with Employer's holiday policy;

     (ii) Reasonable sick leave;

     (iii)  Employer  paid  membership  for Employee at the Century Club and the
Onondaga Country Club,  subject to nondeductible  tax treatment by Employer or a
reimbursement  to Employee  for taxes owed by Employee in  connection  with such
benefit;

     (iv) The use of an  Employer-owned  automobile  of Employee's  choice,  the
purchase  and  replacement  of which  shall be  subject to the  approval  of the
Personnel Committee of the Board of Directors of Employer; and

     (v)  Reimbursement  of  the  purchase  price  of a car  telephone  and  all
Employer-related  business  charges  incurred in connection with the use of such
telephone.

     (d)  Supplemental  Retirement  Benefits.  The terms and  conditions for the
payment of  Supplemental  Retirement  Benefits  shall be set forth in a separate
written agreement between the parties.

     5. Stock Options. Employer shall cause the Personnel Committee of the Board
of Directors of Employer to review whether Employee should be granted options to
purchase  shares of common stock of Community Bank System,  Inc. Such review may
be  conducted  pursuant to the terms of the  Community  Bank System,  Inc.  1994
Long-Term  Incentive  Compensation  Program or  independently,  as the Personnel
Committee  shall  determine.  Reviews shall be conducted no less frequently than
annually.

 6.    Change of Control.

     (a) If Employee's employment with Employer (as an employee) shall cease for
any  reason,  including  Employee's  voluntary  termination  but  not  including
Employee's  termination  for "cause" (as  described in paragraph  3(d)) within 2
years  following  a  "Change  of  Control"  that  occurs  during  the  Period of
Employment, Employer shall:

     (i) Retain the services of Employee, on an independent contractor basis, as
a  consultant  to  Employer  for a period of no less than 36 months at an annual
consulting  fee rate equal to the total of  Employee's  Base Salary in effect at
the time of  Employee's  termination  plus an  amount  equal  to the  Management
Incentive paid to the Employee in the year previous to the "Change of Control";

     (ii) Provide Employee with fringe benefits,  or the cash equivalent of such
benefits,  identical to those  described in paragraph 4(a) for the period during
which Employee is retained as a consultant  pursuant to (i) above. To the extent
the benefits provided to Employee in 6(a)(ii) above are deemed taxable benefits,
Employer shall reimburse Employee for taxes owed by Employee on the benefits and
tax reimbursement;

     (iii)  Treat  as  immediately   exercisable  all  unexpired  stock  options
described in  paragraph 5 that are not  otherwise  exercisable  or that have not
been exercised and permit Employee to dispose of any restricted stock granted to
Employee; and

     (iv) Pay to Employee the  difference  between the total purchase price paid
by Employee for the home owned by him in the  Syracuse  area and the proceeds of
the sale of such home by Employee  following the  termination  of his employment
not  later  than  December  31,  2004  if he  elects  to  move  outside  of  the
metropolitan  Syracuse area and he establishes to the  satisfaction of the Board
of Directors of Employer that he is unable  despite  reasonable  efforts to sell
the home within one year from the  termination of his employment for a sum equal
to the purchase price, or, in lieu thereof,  Employer will purchase the home for
a sum equal to the price Employee paid for it.

     (v)  Subject  to  Employer's  right to make  the  single  lump sum  payment
described in paragraph 6(a)(vi) below, if any portion of the amounts paid to, or
value  received by,  Employee  following a "Change of Control"  (whether paid or
received  pursuant to this  paragraph  6 or  otherwise)  constitutes  an "excess
parachute  payment"  within the meaning of Internal  Revenue Code Section  280G,
then the parties shall negotiate a restructuring of payment dates and/or methods
(but not payment  amounts) to minimize or eliminate the  application of Internal
Revenue Code Section 280G.  If an agreement to  restructure  payments  cannot be
reached within 60 days of the date the first payment is due under this paragraph
6, then  payments  shall be made  without  restructuring.  Subject to  paragraph
6(a)(vi),  Employee shall be responsible for all taxes and penalties  payable by
Employee as a result of Employee's receipt of an "excess parachute payment."

     (vi)  Notwithstanding  the foregoing of this  paragraph  6(a), the Board of
Directors of Employer may elect, in its sole discretion, to pay all benefits due
Employee  pursuant  to this  paragraph  6 (except  for the  benefit set forth in
paragraph  6(a)(iv) which shall continue pursuant to its terms) in a single lump
sum  payment  within  90 days  following  a Change  of  Control  and  Employee's
termination of employment with Employer.  In the event a single lump sum payment
is made pursuant to the foregoing  sentence,  the amount of the payment shall be
increased  to the  extent  necessary  to hold  Employee  harmless  from  any tax
liability attributable to such single lump sum payment.

     (b) As provided in paragraph 6(a) above, Employee may voluntarily terminate
his employment with Employer  within 2 years following a Change of Control,  and
receive all of the  payments  specified  in 6(a)  above.  In the event of such a
voluntary  termination,  the payments  specified in paragraph  6(a)(i)  shall be
reduced by any non-Employer related wages or self-employment income derived (or,
in the case of a single lump sum payment,  reasonably expected to be derived) by
Employee  during the  consulting  period.  (c) For  purposes of  paragraph  6, a
"Change of Control" shall be deemed to have occurred if:

     (i) any "person,"  including a "group" as determined in accordance with the
Section 13(d)(3) of the Securities  Exchange Act of 1934 ("Exchange Act"), is or
becomes the beneficial owner, directly or indirectly,  of securities of Employer
representing  30% or  more of the  combined  voting  power  of  Employer's  then
outstanding securities;

     (ii) as a result of, or in  connection  with,  any tender offer or exchange
offer, merger or other business  combination (a "Transaction"),  the persons who
were directors of Employer  before the  Transaction  shall cease to constitute a
majority of the Board of Directors of Employer or any successor to Employer;

     (iii) Employer is merged or consolidated with another  corporation and as a
result of the merger or  consolidation  less than 70% of the outstanding  voting
securities of the surviving or resulting  corporation shall then be owned in the
aggregate  by the former  stockholders  of Employer,  other than (A)  affiliates
within  the  meaning  of the  Exchange  Act,  or (B) any party to the  merger or
consolidation;

     (iv) a tender  offer or  exchange  offer  is made and  consummated  for the
ownership of  securities  of Employer  representing  30% or more of the combined
voting power of Employer's then outstanding voting securities; or

     (v)  Employer  transfers   substantially  all  of  its  assets  to  another
corporation which is not controlled by Employer.

     7.  Withholding.  Employer shall deduct and withhold from  compensation and
benefits provided under this Agreement all necessary income and employment taxes
and any other similar sums required by law to be withheld.

 8.    Covenants.

     (a) Confidentiality.  Employee shall not, without the prior written consent
of  Employer,  disclose  or use in any way,  either  during  his  employment  by
Employer or  thereafter,  except as required in the course of his  employment by
Employer,  any  confidential  business or technical  information or trade secret
acquired  in  the  course  of  Employee's   employment  by  Employer.   Employee
acknowledges and agrees that it would be difficult to fully compensate  Employer
for damages  resulting  from the breach or  threatened  breach of the  foregoing
provision  and,  accordingly,  that  Employer  shall be  entitled  to  temporary
preliminary  injunctions  and permanent  injunctions to enforce such  provision.
This provision with respect to injunctive  relief shall not,  however,  diminish
Employer's  right to claim and recover  damages.  Employee  covenants to use his
best efforts to prevent the publication or disclosure of any trade secret or any
confidential  information  concerning  the  business  or finances of Employer or
Employer's affiliates, or any of its or their dealings,  transactions or affairs
which  may come to  Employee's  knowledge  in the  pursuance  of his  duties  or
employment.

     (b) No Competition.  Employee's employment is subject to the condition that
during the term of his  employment  hereunder  and for the period  specified  in
Paragraph 8(c) below,  Employee shall not, directly or indirectly,  own, manage,
operate,  control or  participate  in the  ownership,  management,  operation or
control  of,  or  be  connected  as an  officer,  employee,  partner,  director,
individual  proprietor,  lender,  consultant  or  otherwise  with,  or have  any
financial  interest  in, or aid or assist  anyone  else in the  conduct  of, any
entity or business (a  "Competitive  Operation")  which  competes in the banking
industry  or with any other  business  conducted  by  Employer  or by any group,
affiliate,  division or  subsidiary  of Employer,  in the states of New York and
Pennsylvania.  Employee  shall keep  Employer  fully advised as to any activity,
interest,  or  investment  Employee  may have in any way  related to the banking
industry.  It is understood  and agreed that,  for the purposes of the foregoing
provisions of this  paragraph,  (i) no business shall be deemed to be a business
conducted  by  Employer  or any group,  division,  affiliate  or  subsidiary  of
Employer unless 5% or more of Employer's  consolidated  gross sales or operating
revenues is derived from, or 5% or more of  Employer's  consolidated  assets are
devoted to, such  business;  (ii) no business  conducted  by any entity by which
Employee is employed or in which he is  interested or with which he is connected
or  associated  shall be  deemed  competitive  with any  business  conducted  by
Employer or any group,  division or subsidiary of Employer unless it is one from
which 2% or more of its  consolidated  gross  sales  or  operating  revenues  is
derived,  or to which 2% or more of its  consolidated  assets are  devoted;  and
(iii) no business which is conducted by Employer at the Date of Termination  and
which subsequently is sold by Employer shall, after such sale, be deemed to be a
Competitive  Operation  within the meaning of this  paragraph.  Ownership of not
more than 5% of the voting  stock of any  publicly  held  corporation  shall not
constitute a violation of this paragraph.

     (c)  Non-Competition  Period. If Employee's  employment with Employer shall
cease for any reason  during the Period of  Employment  as defined in  Paragraph
1(a) of this Agreement,  the "non-competition period" shall begin on the date of
Employee's termination and end on the later of (i) the second anniversary of the
date of Employee's termination, or (ii) December 31, 2002.

     (d) Certain Affiliates of Employer. It is understood that Employee may have
access to technical knowledge, trade secrets and customer lists of affiliates of
Employer or companies which Employer's  parent may acquire in the future and may
serve as a member of the board of  directors  or as an officer or employee of an
affiliate of Employer.  Employee covenants that he shall not, during the term of
his  employment  by Employer or for the period  specified in 8(c) above,  in any
way, directly or indirectly, own, manage, operate, control or participate in the
ownership,  management,  operation or control of, or be connected as an officer,
employee,  partner,  director,  individual  proprietor,  lender,  consultant  or
otherwise aid or assist anyone else in any business or operation  which competes
with or engages in the business of such an affiliate.

     (e)  Termination  of Payments.  Upon the breach by Employee of any covenant
under this  paragraph  8,  Employer  may offset  and/or  recover  from  Employee
immediately any and all severance benefits paid to Employee under paragraph 3(e)
hereof in addition to any and all other remedies available to Employer under the
law or in equity.

     (f) The  non-competition  provisions of paragraphs  8(b) and 8(c) shall not
apply if Employee's  employment  ceases within the two-year  period  following a
Change of Control within the meaning of paragraph 6.

     9. Notices.  Any notice which may be given hereunder shall be sufficient if
in writing and mailed by certified mail, return receipt  requested,  to Employee
at his residence and to Employer at 5790 Widewaters  Parkway,  Dewitt,  New York
13214, or at such other addresses as either Employee or Employer may, by similar
notice, designate.

     10. Rules,  Regulations  and Policies.  Employee  shall abide by and comply
with all of the rules, regulations,  and policies of Employer, including without
limitation  Employer's  policy of strict  adherence to, and compliance with, any
and  all  requirements  of the  banking,  securities,  and  antitrust  laws  and
regulations.

     11. No Prior Restrictions. Employee affirms and represents that Employee is
under no obligations to any former employer or other third party which is in any
way inconsistent  with, or which imposes any restriction upon, the employment of
Employee by Employer, or Employee's undertakings under this Agreement.

     12. Return of Employer's  Property.  After Employee has received  notice of
termination or at the end of the term hereof,  whichever first occurs,  Employee
shall  forthwith  return to Employer  all  documents  and other  property in his
possession belonging to Employer.

     13.  Construction  and  Severability.  The  invalidity  of any  one or more
provisions  of this  Agreement  or any part  thereof,  all of which are inserted
conditionally  upon their being valid in law,  shall not affect the  validity of
any  other  provisions  to this  Agreement;  and in the  event  that one or more
provisions  contained  herein  shall be  invalid,  as  determined  by a court of
competent  jurisdiction,  this instrument  shall be construed as if such invalid
provisions had not been inserted.

     14.  Governing  Law. This  Agreement was executed and delivered in New York
and shall be construed and governed in accordance  with the laws of the State of
New York.

     15.  Assignability  and  Successors.  This Agreement may not be assigned by
Employee or Employer, except that this Agreement shall be binding upon and shall
inure to the benefit of the  successor of Employer  through  merger or corporate
reorganization.

     16. Miscellaneous.  This Agreement constitutes the entire understanding and
agreement  between the parties  with  respect to the subject  matter  hereof and
shall supersede all prior  understandings and agreements,  including the January
1, 1997 version of this Agreement and an employment  agreement made effective as
of January 1, 1995. This Agreement cannot be amended,  modified, or supplemented
in any respect,  except by a subsequent  written  agreement  entered into by the
parties hereto. The services to be performed by Employee are special and unique;
it is agreed  that any  breach  of this  Agreement  by  Employee  shall  entitle
Employer  (or any  successor  or assigns of Employer) , in addition to any other
legal remedies available to it, to apply to any court of competent  jurisdiction
to enjoin such breach.  The provisions of paragraphs  l(e), 6 and 8 hereof shall
survive the termination of this Agreement.

     17.  Counterparts.  This Agreement may be executed in counterparts (each of
which  need  not be  executed  by each of the  parties),  which  together  shall
constitute one and the same instrument.

     18.  Jurisdiction,  Venue  and Fees.  The  jurisdiction  of any  proceeding
between the parties  arising out of, or with respect to, this Agreement shall be
in a court of competent  jurisdiction  in New York State,  and venue shall be in
Onondaga County. Each party shall be subject to the personal jurisdiction of the
courts of New York State. If Employee is the prevailing party in a proceeding to
collect  payments due  pursuant to this  Agreement  and  prevails in  collecting
payments due in the proceeding or settlement of the  proceeding,  Employer shall
reimburse  Employee  for  reasonable  attorneys'  fees  incurred  by Employee in
connection with such proceeding.

     The foregoing is established by the following signatures of the parties.

                                    COMMUNITY BANK SYSTEM, INC.


                                    By: /S/  James A. Gabriel
                                    -------------------------

                                    Its:  Chairman
                                    --------------


                                    COMMUNITY BANK, N.A.


                                    By: /s/  James A. Gabriel

                                    Its:  Chairman
                                    --------------


                                    /s/  SANFORD A. BELDEN
                                    ----------------------
                                         SANFORD A. BELDEN



                                         APPENDIX A

                          BENEFICIARY DESIGNATION FORM

     Pursuant to the  Employment  Agreement  between (i) Community  Bank System,
Inc. and Community Bank,  N.A., and (ii) Sanford A. Belden,  dated as of January
1,   1997    ("Agreement"),    I,   Sanford   A.   Belden,    hereby   designate
Elizabeth G. Belden, my wife as the beneficiary of amounts payable upon my death
in accordance  with paragraph 3(b) of the Agreement.  My  beneficiary's  current
address is 9 Lynacres Boulevard Fayetteville, NY  13066.


Dated: 3/19/97
       -------



/s/  Sanford A. Belden
- ----------------------
     Sanford A. Belden


/s/  Susan D. Abbott
- ----------------------
        Witness





                     SUPPLEMENTAL RETIREMENT PLAN AGREEMENT

     This sets forth an amendment and restatement of the Supplemental Retirement
Plan  Agreement  made  effective as of April 1, 1997 between (i) COMMUNITY  BANK
SYSTEM,  INC., a Delaware  corporation and registered bank holding company,  and
COMMUNITY  BANK,  N.A.,  a national  banking  association,  both having  offices
located in Dewitt, New York (collectively,  the "Employer"), and (ii) SANFORD A.
BELDEN, an individual currently residing at 9 Lynacres Boulevard,  Fayetteville,
New York  ("Employee").  This  amended and  restated  agreement  supersedes  the
original version of this agreement dated April 1, 1997,  supersedes  paragraph 6
of the  employment  agreement  between the  parties,  effective as of January 1,
1995, and is entered into pursuant to paragraph 4(d) of the employment agreement
between the parties, effective as of January 1, 1997 and as amended ("Employment
Agreement").  This amended and restated Agreement is effective as of October 31,
1999.

     WITNESSETH  IN  CONSIDERATION  of the  promises and mutual  agreements  and
covenants  contained  herein,  and other good and  valuable  consideration,  the
parties agree as follows:


     1.  Supplemental  Retirement  Benefit.  (a) Employer  shall pay Employee an
annual  supplemental  retirement  benefit  equal to the  product of (i) 5% times
Employee's number of years of service,  considering only the Employee's first 10
years of service,  plus 2% times Employee's number of years of service in excess
of ten years, times (ii) Employee's final average compensation, with the product
of (i) times (ii) reduced by Employee's other retirement benefits.

     (b) For purposes of this paragraph 1, and subject to paragraph 2, "years of
service"  shall be  credited  to Employee in the same manner as years of service
are credited to Employee under the Community Bank System,  Inc. Pension Plan, as
amended through December 31, 1994 ("Pension Plan"); and no more than 15 years of
service will be taken into account under paragraphs 1 and 2.

     (c)  For  purposes  of  this   paragraph  1,   Employee's   "final  average
compensation"  shall be the annual average of Employee's Base Salary (as defined
in the Employment Agreement) and cash bonus received during the five consecutive
calendar years preceding Employee's termination.

     (d)  For  purposes  of  this  paragraph  1,  Employee's  "other  retirement
benefits" shall mean the sum of

     (i) the annual benefit payable to Employee from the Pension Plan, plus

     (ii) the  estimated  annual  benefit  payable to  Employee  pursuant to the
Federal Social Security Act, plus

     (iii) the annual  benefit  payable to Employee  under the  defined  benefit
pension plan  maintained  by Farm Credit (in which  Employee  was a  participant
prior to his employment with Employer), plus

     (iv)  the  annual   benefit   that  could  be  provided  by  (A)   Employer
contributions  (other than elective  deferrals) made on Employee's  behalf under
the Community Bank System,  Inc. Employee Savings and Retirement Plan, and under
the Deferred Compensation Plan for Certain Executive Employees of Community Bank
System,   Inc.,  (B)  First  Bank  System  contributions  (other  than  elective
deferrals)  made on  Employee's  behalf  under  the  defined  contribution  plan
maintained by First Bank System (in which  Employee was a  participant  prior to
his employment with Employer),  and (C) earnings on contributions  under (A) and
(B) at an assumed rate of 8% per year,  if such  contributions  and earning were
converted  to a  benefit  payable  at the same  time and in the same form as the
benefit  paid under this  paragraph  1, using the factors  applied to  determine
actuarial  equivalents  under the Pension Plan at the time payments  begin under
this  paragraph 1. As of the date of this  Agreement,  the  aggregate  amount of
"other retirement benefits" is reflected on Appendix B to this Agreement.

     (e) For  purposes  of  paragraph  1,  Employee's  Social  Security  Benefit
("Benefit")  will be  valued  by the  actual  Benefit  Employee  receives  or is
qualified  to receive at the time  Employee  elects to receive the  supplemental
retirement  benefit,  or if Employee has not yet qualified for the Benefit,  the
Benefit  will be valued by the maximum  benefit  available to a then 62 year old
individual.

     (f) For the purposes of paragraph 1,  Employee's  Pension Plan Benefit will
be Employee's accrued benefit under the Plan, determined as of the date Employee
elects to receive the  supplemental  retirement  plan benefit,  adjusted for the
timing and form of benefit.

     (g) The supplemental  retirement  benefit described in paragraph 1 shall be
payable  commencing  on the first day of the  month  following  the later of (i)
Employee's  receipt  of all  payment  due  under  the  terms  of his  Employment
Agreement, or (ii) termination of employment with Employer.

     (h) The supplemental retirement benefit described in this paragraph 1 shall
be paid in the form of an  actuarially  reduced  Joint and 50% Survivor  benefit
with Employee's spouse as survivor annuitant; provided however, that if Employee
simultaneously  commences receipt of Employer's  Pension Plan benefit,  then the
benefit  under  this  paragraph  1 shall be paid in the same form as  Employee's
Pension Plan Benefit.  If Employee or his beneficiaries shall receive payment of
Employee's  benefit  under the Pension  Plan in  a form other than a single life
annuity for Employee's life and/or prior to Employee's attainment of age 65, the
supplement  retirement  benefit under this paragraph 1 shall be converted to the
same form of payment  and/or  subject to the same  early  retirement  reduction,
using  the  factors  applied  to  determine  actuarial   equivalents  and  early
retirement benefits under the Pension Plan at the time payments begin.

     (i) Employer shall  establish a "grantor trust" (as that term is defined in
Internal  Revenue Code Section 671) to aid it in the accumulation and payment of
the supplemental retirement benefit described in this paragraph 1; provided that
the trust shall be established  with the intention that the creation and funding
of the trust shall not result in the  recognition of gross income by Employee of
any amount credited under the trust prior to the date the amount is paid or made
available.  Assets of the trust,  and any other  assets set aside by Employer to
satisfy its obligations under this Agreement,  shall remain at all times subject
to the claims of Employer's  general  creditors.  Employee and his beneficiaries
shall not have any rights  under this  paragraph 1 that are senior to the claims
of general unsecured  creditors of Employer.  Notwithstanding  any other term or
provision of this  agreement or the trust,  immediately  prior to the  effective
date of a Change of Control (as defined in the Employment  Agreement),  Employer
shall  fully  fund the  trust  (using  the same  actuarial  assumptions  used to
establish  funding in the Pension Plan) for all benefits earned pursuant to this
Agreement through the effective date of the Change of Control.

     (j) The right to receive the supplemental  retirement  benefit described in
this paragraph 1 shall not be subject in any manner to anticipation, alienation,
sale, transfer,  assignment,  pledge or encumbrance,  nor subject to attachment,
garnishment,  levy, execution or other legal or equitable process for the debts,
contracts or liabilities of Employee or his beneficiaries.

     2. Change of Control

     (a) If  Employee's  employment  with  Employer  shall cease for any reason,
including  Employee's   voluntary   termination  but  not  including  Employee's
termination  for "cause",  within 2 years  following a "Change of Control",  (as
those quoted terms are defined in the Employment Agreement), Employer shall:

     (i) Credit  Employee  under this  agreement  with the greater of 3 years of
service or the years of service  Employee is retained as a consultant  under the
terms of paragraph 6 of the  Employment  Agreement  for purposes of  determining
Employee's supplemental retirement benefit described in paragraph 1; and

     (ii) Credit  Employee under this  agreement  with two  additional  years of
service for purposes of determining Employee's  supplemental  retirement benefit
described in paragraph 1.

     (b) Subject to paragraph 2(c) below, if any portion of the amounts paid to,
or value received by,  Employee  following a "Change of Control"  constitutes an
"excess  parachute  payment" within the meaning of Internal Revenue Code Section
280G, then the parties shall  negotiate a restructuring  of payment dates and/or
methods (but not payment  amounts) to minimize or eliminate the  application  of
Internal  Revenue Code Section  280G.  If an agreement to  restructure  payments
cannot be reached within 60 days of the date the first payment is due under this
Agreement, then payments shall be made without restructuring.  Employee shall be
responsible  for all taxes and  penalties  payable  by  Employee  as a result of
Employee's receipt of an "excess parachute payment."

     (c)  Notwithstanding  the  foregoing  of this  paragraph 2, if the Board of
Directors  of  Employer  elects to make a single  lump sum  payment to  Employee
pursuant to paragraph 6(a)(vi) of the Employment  Agreement,  Employer shall pay
all benefits due Employee pursuant to this Agreement in an actuarial  equivalent
single  lump sum  payment  within  90 days  following  a Change of  Control  and
Employee's  termination of employment with Employer.  In the event a single lump
sum  payment  is made  pursuant  to the  foregoing  sentence,  the amount of the
payment  shall be increased to the extent  necessary to hold  Employee  harmless
from any tax liability attributable to such single lump sum payment.

     3.  Construction  and  Severability.  The  invalidity  of any  one or  more
provisions  of this  Agreement  or any part  thereof,  all of which are inserted
conditionally  upon their being valid in law,  shall not affect the  validity of
any  other  provisions  to this  Agreement;  and in the  event  that one or more
provisions  contained  herein  shall be  invalid,  as  determined  by a court of
competent  jurisdiction,  this instrument  shall be construed as if such invalid
provisions had not been inserted.

     4. Governing Law. This Agreement was executed and delivered in New York and
shall be construed and governed in accordance  with the laws of the State of New
York.

     5.  Assignability  and  Successors.  This  Agreement may not be assigned by
Employee or Employer, except that this Agreement shall be binding upon and shall
inure to the benefit of the  successor of Employer  through  merger or corporate
reorganization.

     6. Miscellaneous.  This Agreement  constitutes the entire understanding and
agreement  between the parties  with  respect to the subject  matter  hereof and
shall supersede all prior understandings and agreements,  including the April 1,
1997 version of this Agreement and the employment agreement between Employer and
Employee dated January 1, 1995. This Agreement cannot be amended,  modified,  or
supplemented in any respect,  except by a subsequent  written  agreement entered
into by the parties hereto.

     7.  Counterparts.  This Agreement may be executed in counterparts  (each of
which  need  not be  executed  by each of the  parties),  which  together  shall
constitute one and the same instrument.

     8. Jurisdiction, Venue and Fees. The jurisdiction of any proceeding between
the parties  arising out of, or with  respect to, this  Agreement  shall be in a
court  of  competent  jurisdiction  in New York  State,  and  venue  shall be in
Onondaga County. Each party shall be subject to the personal jurisdiction of the
courts of New York  State.  If Employee  is a party in a  proceeding  to collect
payments due pursuant to this Agreement and prevails in collecting  payments due
in the  proceeding or settlement of the  proceeding,  Employer  shall  reimburse
Employee for reasonable  attorneys' fees incurred by Employee in connection with
such proceeding.

     The foregoing is established by the following signatures of the parties.

                                    COMMUNITY BANK SYSTEM, INC.
                                    By: /S/  James A. Gabriel
                                    -------------------------

                                    Its:  Chairman
                                    --------------



                                    COMMUNITY BANK, N.A.
                                    By: /S/  James A. Gabriel
                                    -------------------------

                                    Its:  Chairman
                                    --------------


                                    /s/   SANFORD A. BELDEN
                                    -----------------------
                                          SANFORD A. BELDEN



                                  APPENDIX A


                          BENEFICIARY DESIGNATION FORM


     Pursuant to the  Supplemental  Retirement  Agreement  between (i) Community
Bank System, Inc. and Community Bank, N.A., and (ii) Sanford A. Belden, dated as
of April 1, 1997 and amended and  restated as of October 1, 1999  ("Agreement"),
I, Sanford A. Belden,  hereby  designate  Elizabeth G. Belden,  my wife,  as the
beneficiary of amounts  payable upon my death in accordance  with paragraph 1 of
the  Agreement.  My  beneficiary's  current  address  is 9  Lynacres  Boulevard,
Fayetteville, New York.



Dated: 11/19/99                     /s/   Sanford A. Belden
                                    -----------------------
                                          Sanford A. Belden


                                    /s/ Donna P. VanAuken
                                       ---------------------
                                               Witness