LOS ANGELES, Dec. 29 (UPI) — The U.S. Air Force has contracted Aecom Technology Corp. to provide the Air Test and Evaluation Squadron 31 with aircraft maintenance services.

BETHESDA, Md., Dec. 29 (UPI) — U.S. company Lockheed Martin has agreed to purchase defense and homeland security training solutions developer Universal Systems & Technology Inc.

ANN ARBOR, Mich., Dec. 29 (UPI) — The U.S. Air Force has awarded Advanced Photonix Inc. a phase I contract to support testing and development of the company’s T-Ray 4000 technology.

FORT WORTH, Texas, Dec. 29 (UPI) — U.S. company Lockheed Martin announced the first of a new F-35 Lightning II aircraft redesigned under a weight-saving program will begin testing.

SAN DIEGO, Dec. 29 (UPI) — Security authorities in Greece have accepted a public safety and security system from Science Applications International Corp.