1/9/06 DRS Engineering Dev Labs Inc. S-3ASR 1/9/06 9:1.4M Toppan Merrill-FA DRS Codem Systems, Inc. DRS Communications Co. LLC DRS Data & Imaging Systems Inc. DRS Electric Power Technologies Inc. DRS Electronic Systems Inc. DRS Ew & Network Systems Inc. DRS Fpa Inc. DRS Infrared Technologies LP DRS International Inc. DRS Optronics Inc. DRS Power & Control Technologies Inc. DRS Power Technology Inc. DRS Sensors & Targeting Systems Inc. DRS Signal Recording Technologies Inc. DRS Signal Solutions Inc. DRS Signal Technologies Inc. DRS Surveillance Support Systems Inc. DRS Systems Inc. DRS Systems Management Corp. DRS Tactical Systems Global Services, Inc. DRS Tactical Systems Inc. DRS Technical Services Inc. DRS Technologies Canada Inc. DRS Technologies Inc. DRS Test & Energy Management Inc. DRS Training & Control Systems Inc. DRS Unmanned Technologies Inc. Integrated Defense Technologies Inc. Maxco, Inc. Nai Technologies Inc. Night Vision Equipment Co., Inc. Tech Sym Corp.