Document:

<PAGE>

                                                                     EXHIBIT 4.5

DISCLAIMER:
NON-BINDING ENGLISH TRANSLATION FROM THE GERMAN:
FOR DISCUSSION ONLY. THE GERMAN TEXT IS LEGALLY BINDING.

     Pursuant to Rule 306 of Regulation S-T, we hereby confirm that this
document is a fair and accurate English translation of the Supplement to the
Principles of Cooperation between Allianz AG and Munich Re, dated December 2001.

                                          By: /s/ Bernd Honsel
                                            ------------------------------------
                                              Bernd Honsel
                                              Prokurist and Chief Counsel

                                          By: /s/ Uta Gutknecht
                                            ------------------------------------
                                              Dr. Uta Gutknecht
                                              Prokuristin

                                  TRANSLATION

Agreement

Between

Allianz Aktiengesellschaft, Munich,

referred to in the following as ALLIANZ,

and

Munchener Ruckversicherungs-Gesellschaft
Aktiengesellschaft in Munchen, Munich,

referred to in the following as MUNICH RE,

the following is agreed:

Whereas Allianz and Munich Re (the "Parties") wish to amend the Principles of
Cooperation of May 2000, in particular its paragraph 1.3.1 (Quota Share
Reinsurance), in order to mutually optimize their portfolios and to balance
risk;

1.  QUOTA SHARE REINSURANCE CEDED BY ALLIANZ TO MUNICH RE AS OF JANUARY 1, 2008:

     Effective January 1, 2008, the quota share reinsurance that Allianz cedes
     to Munich Re will be in the form of a variable quota share in an amount of
     DM 1,000 million (or the equivalent amount in euros) out of the gross
     self-retention of the companies specified in paragraph 1.3.1 of the
     Principles of Cooperation. This quota share reinsurance shall be ceded to
     Munich Re through Allianz.
<PAGE>
DISCLAIMER:
NON-BINDING ENGLISH TRANSLATION FROM THE GERMAN:
FOR DISCUSSION ONLY. THE GERMAN TEXT IS LEGALLY BINDING.

2.  QUOTA SHARE REINSURANCE CEDED BY MUNICH RE TO ALLIANZ AS OF JANUARY 1, 2001:

     Effective January 1 of each of the years set forth below, the quota share
     reinsurance that Munich Re cedes to Allianz shall reach a premium volume in
     the following order of magnitude:

     2001: DM   500 million
     2002: DM   600 million
     2003: DM   750 million
     2004: DM   875 million
     2005: DM 1,000 million
     (or the equivalent amounts in euros)

     For subsequent years, beginning in 2006, the premium volume shall remain at
     DM 1,000 million (or the equivalent amount in euros) per year.

3.  DURATION:

     Notwithstanding the right of either Party to terminate the Principles of
     Cooperation pursuant to paragraph 5.1 thereof, the Parties agree that this
     Agreement shall remain in effect until December 31, 2010, even if the
     Principles of Cooperation should be terminated as of December 31, 2005. In
     the event that the Principles of Cooperation are terminated, paragraphs
     1.3.1, 7 and 8 thereof shall remain applicable to the performance of this
     Agreement. The arbitration agreement of May 2000 shall remain applicable to
     all disputes arising from this Agreement.

Munich, December 2001

<Table>
<S>                                            <C>
Allianz Aktiengesellschaft                     Munchener Ruckversicherungs-
                                               Gesellschaft Aktiengesellschaft in Munchen

/s/                                            /s/
</Table><PAGE>

                                                                    EXHIBIT 10.1

[KPMG LOGO]

The Management Board and Supervisory Board
Allianz Aktiengesellschaft

     We consent to the incorporation by reference in the Registration Statement
on Form S-8 relating to the Allianz of America, Inc. Employee Stock Purchase
Plan of Allianz Aktiengesellschaft ("Allianz") of our report dated June 25, 2002
relating to the consolidated balance sheets of Allianz and its subsidiaries
(collectively, the "Allianz Group") as of December 31, 2001, and 2000, and the
related consolidated income statements and cash flow statements for each of the
years in the three-year period ended December 31, 2001, and the financial
statement Schedules I, II, III and IV, which report is included in the annual
report on Form 20-F for the year ended December 31, 2001 of Allianz. Our report
refers to a restatement of the US GAAP reconciliation for 2000.

/s/ KPMG Deutsche Treuhand-Gesellschaft Aktiengesellschaft
    Wirtschaftsprufungsgesellschaft
     -------------------------------------------------------------------------

KPMG Deutsche Treuhand-Gesellschaft Aktiengesellschaft
Wirtschaftsprufungsgesellschaft

Munich, Germany
June 25, 2002<PAGE>

                                                                    EXHIBIT 10.4

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

                                AMENDMENT NO. 1

                                       TO

                        ADMINISTRATIVE AGENCY AGREEMENT

                                     AMONG

             DEBIS AIRFINANCE FINANCIAL SERVICES (IRELAND) LIMITED,
                          DEBIS AIRFINANCE IRELAND PLC
                               AIRPLANES LIMITED,
                          AIRPLANES HOLDINGS LIMITED,
                              AIRPLANES U.S. TRUST
                                      AND
                                 AEROUSA, INC.

                          DATED AS OF FEBRUARY 5, 2002

            -------------------------------------------------------
<PAGE>

               AMENDMENT NO. 1 TO ADMINISTRATIVE AGENCY AGREEMENT

     AMENDMENT dated as of February 5, 2002 (this "AMENDMENT") to the
Administrative Agency Agreement, dated as of March 28, 1996 (the "ORIGINAL
AGREEMENT"), among debis AirFinance Financial Services (Ireland) Limited
(formerly GPA Financial Services (Ireland) Limited), a company incorporated
under the laws of Ireland (the "ADMINISTRATIVE AGENT"), debis AirFinance Ireland
Plc (formerly GPA Group Plc), a company incorporated under the laws of Ireland,
Airplanes Limited, a company incorporated under the laws of Jersey, Channel
Islands, Airplanes Holdings Limited (formerly GPA II Limited), a company
incorporated under the laws of Ireland, Airplanes U.S. Trust, a Delaware
business trust and AeroUSA, Inc., a company incorporated under the laws of the
State of Connecticut.

                                  WITNESSETH:

     WHEREAS, the parties hereto wish to amend the Original Agreement to reduce
the administrative fees payable in consideration of the Administrative Agent's
performance of the Administrative Services;

     NOW, THEREFORE, the parties hereto agree as follows:

     SECTION 1.  Defined Terms; References.  Unless otherwise specifically
defined herein, each term used herein which is defined in the Original Agreement
has the meaning assigned to such term in the Original Agreement. Each reference
to "hereof", "hereunder", "herein" and "hereby" and each other similar reference
and each reference to "this Agreement" and each other similar reference
contained in the Original Agreement shall, after this Amendment becomes
effective, refer to the Original Agreement as amended hereby.

     SECTION 2.  Reduction of Administrative Fee.  The definition of
"Administrative Fee" in Section 8.01(a)(i) of the Original Agreement is amended
by replacing the amount $6,000,000 with the amount $4,000,000. The second
paragraph of Section 8.01(a) is amended by replacing the amount $6,000,000 with
the amount $4,000,000.

     SECTION 3.  Reduction of Reducing Fee.  The definition of "Reducing Fee" in
Section 8.01(a)(ii) of the Original Agreement is amended by replacing the amount
$2,000,000 with the amount $1,250,000 and the second sentence of Section 8.01(a)
of the Original Agreement is amended by replacing the amount $2,000,000 with the
amount $1,250,000. The second paragraph of Section 8.01(a) is amended by
replacing the amount $2,000,000 with the amount $1,250,000.

     SECTION 4.  Inflation Adjustment.  Section 8.01(c) of the Original
Agreement is amended by replacing the reference to March 31, 1997 with the date
"March 31, 2003".

     SECTION 5.  Governing Law.  This Amendment shall in all respects be
governed by, and construed in accordance with, the laws (excluding principles of
conflicts of laws) of the State of New York applicable to agreements made and to
be performed entirely within such State, including all matters of construction,
validity and performance.

     SECTION 6.  Counterparts.  This Amendment 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.

     SECTION 7.  Effectiveness.  The effective date of this Amendment shall be
April 1, 2002.

                                        1
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be
duly executed as of the date first above written.

                                          DEBIS AIRFINANCE FINANCIAL SERVICES
                                          (IRELAND) LIMITED

                                          By /s/ PATRICK DALTON
                                            ------------------------------------
                                            Name:  Patrick Dalton
                                            Title:   Director

                                          DEBIS AIRFINANCE IRELAND PLC

                                          By /s/ PATRICK DALTON
                                            ------------------------------------
                                            Name:  Patrick Dalton
                                            Title:   Director

                                          AIRPLANES LIMITED

                                          By /s/ ROY DANTZIC
                                            ------------------------------------
                                            Name:  Roy Dantzic
                                            Title:   Director

                                          AIRPLANES HOLDINGS LIMITED

                                          By /s/ ROY DANTZIC
                                            ------------------------------------
                                            Name:  Roy Dantzic
                                            Title:   Director

                                          AIRPLANES U.S. TRUST

                                          By /s/ ROY DANTZIC
                                            ------------------------------------
                                            Name:  Roy Dantzic
                                            Title:   Director

                                          AEROUSA, INC.

                                          By /s/ ROY DANTZIC
                                            ------------------------------------
                                            Name:  Roy Dantzic
                                            Title:   Director

                                        2

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00040-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00040-of-00352.parquet"}], [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00040-of-00352.parquet"}]]