SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549
                                 ---------------

                                    FORM 8-K

                                 CURRENT REPORT
                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported)  November 4, 2002

                          Trenwick America Corporation
             (Exact Name of Registrant as Specified in its Charter)

Delaware                               0-31967                   06-1087672
State or Other Jurisdiction            (Commission             (IRS Employer
of Incorporation)                      File Number)          Identification No.)

One Canterbury Green
Stamford, Connecticut                                              06901
(Address of Principal Executive Offices)                         (Zip Code)

Registrant's telephone number, including area code  (203) 353-5500


          (Former Name or Former Address, if Changed Since Last Report)
- --------------------------------------------------------------------------------



Item 5. - Other Events

      On November 4, 2002, Trenwick Managing Agents Limited, a subsidiary of
Trenwick Group Ltd. ("Trenwick"), executed a letter agreement with National
Indemnity Company, a member of the Berkshire Hathaway group of insurance
companies. In the letter agreement, National Indemnity Company agreed to provide
to Trenwick's Lloyd's Syndicate 839 (pound)100 million in capital and a
(pound)30 million qualifying quota share reinsurance facility for the 2003 year
of account. The capital is to be applied to the aviation insurance segment of
Syndicate 839's business. In consideration of National Indemnity Company's
commitment to provide capital to Syndicate 839 for the 2003 year of account,
Trenwick Managing Agents will pay National Indemnity Company a commitment fee of
(pound)3 million through adjustment to the terms of the qualifying quota share
reinsurance facility between Trenwick Managing Agents and National Indemnity
Company for the 2002 year of account.

      On November 4, 2002, Trenwick issued a press release announcing the
transaction with National Indemnity Company. A copy of the press release is
filed herewith as Exhibit 99.2 and is incorporated by reference herein.

Item 7. Financial Statements and Exhibits

(c) Exhibits

99.1  Letter Agreement, dated as of November 1, 2002, between Trenwick Managing
      Agents Limited and National Indemnity Company.

99.2  Press release of Trenwick Group Ltd. issued November 4, 2002.


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                                    SIGNATURE

      Pursuant to the Requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                            TRENWICK AMERICA CORPORATION

                                            By: /s/ Stephen H. Binet
                                               ---------------------------------
                                                Stephen H. Binet
                                                President and
                                                Chief Executive Officer

Dated: November 5, 2002


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                                  EXHIBIT INDEX

Exhibit         Description of Exhibit
- ------          ----------------------

99.1  Letter Agreement, dated as of November 1, 2002, between Trenwick Managing
      Agents Limited and National Indemnity Company.

99.2  Press release of Trenwick Group Ltd. issued November 4, 2002.