8-K/A

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                       __________________________________

                                   FORM 8-K/A


                                 CURRENT REPORT
                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

 Date of Report (Date of Earliest Event Reported): July 13, 2006 (June 28, 2006)

         Engineered Support Systems, Inc. Employee Stock Ownership Plan
             (Exact name of registrant as specified in its charter)


          Delaware                     001-08533              13-2632319
(State or other jurisdiction of       (Commission            (IRS Employer
incorporation or organization)        File Number)       Identification Number)

                   201 Evans Lane, St. Louis, Missouri, 63121
                    (Address of principal executive offices)

                                 (314) 553-4000
              (Registrant's telephone number, including area code)

                                 Not Applicable
          (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions:

[ ] Written communications pursuant to Rule 425 under the Securities Act
    (17 CFR 230.425)

[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
    (17 CFR 240.14a-12)

[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
    Exchange Act (17 CFR 240.14d-2(b))

[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
    Exchange Act (17 CFR 240.13e-4(c))

                       __________________________________



Item 4.01 Changes in Registrant's Certifying Accountant

         On June 28, 2006, Engineered Support Systems, Inc. Employee Stock
Ownership Plan (the "Plan") filed a Current Report on Form 8-K (the "June 8-K")
announcing, among other items, the dismissal of the Plan's independent
registered public accounting firm, PricewaterhouseCoopers LLP ("PwC"). The June
8-K is hereby incorporated by reference. In accordance with Item 4.01 of Form
8-K and Item 304 of Regulation S-K, the Plan provided PwC with a copy of its
disclosures contained in the June 8-K and requested that PwC furnish the Plan
with a letter addressed to the Securities and Exchange Commission ("SEC")
stating whether or not it agrees with the statements made by the Plan in the
June 8-K. On July 11, 2006, the Plan received PwC's response letter; a copy of
that letter is attached hereto as Exhibit 16.1. By filing the letter as an
exhibit as required by SEC regulations, the Plan is not necessarily indicating
its agreement with the statements contained therein.


Item 9.01 Financial Statements and Exhibits

(d)

Exhibit
Number                Description
- -------               -----------
16.1                  Letter from PricewaterhouseCoopers LLP



                                    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 thereunto duly authorized.

                                  ENGINEERED SUPPORT SYSTEMS, INC. EMPLOYEE
                                  STOCK OWNERSHIP PLAN

                                  By: DRS Technologies, Inc.
                                      Plan Administrator

Date: July 13, 2006               By: /s/ Richard A. Schneider
                                      Name:  Richard A. Schneider
                                      Title: Executive Vice President,
                                             Chief Financial Officer



                                  EXHIBIT INDEX


Exhibit Number          Description
- --------------          -----------
16.1                    Letter from PricewaterhouseCoopers LLP to the Securities
                        and Exchange Commission dated July 11, 2006

EX-16

                                                                   Exhibit 16.1


                     Letter from PricewaterhouseCoopers LLP


_____________________________________________________________________

                                          PricewaterhouseCoopers LLP
                                          800 Market Street
                                          St. Louis MO 63101-2605
                                          Telephone (314) 206 8500
                                          Facsimile (314) 206 8514


July 11, 2006

Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549


Commissioners:


We have read the statements made by the Engineered Support Systems, Inc.
Employee Stock Ownership Plan (copy attached), which we understand was filed
with the Securities and Exchange Commission on June 28, 2006, pursuant to Item
4.01 of Form 8-K, as part of the Form 8-K/A of the Engineered Support Systems,
Inc. Employee Stock Ownership Plan dated June 28, 2006. We do not agree with the
statements concerning our Firm contained in such Form 8-K, as described below.

Regarding the June 28, 2006 date of dismissal, we first received notice from the
Plan on April 4, 2006 that we would no longer serve as the independent
accountant for, the Plan. Additionally, the Plan notified us in writing on May
22, 2006 that the successor firm needed to review our working papers.


Very truly yours,



/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP