ANN ARBOR, Mich., April 23 (UPI) -- Northrop Grumman has placed its first order for radio-frequency identification technologies with Evigia Systems as part of a U.S. Defense Department contract.

WASHINGTON, April 16 (UPI) -- National Defense University researchers are encouraging the U.S. Defense Department to develop a strategy to use social media to strengthen national security.

WINDSOR LOCKS, Conn., April 15 (UPI) -- The U.S. Defense Department has contracted Hamilton Sundstrand to provide its chemical warfare-detection spectrometers.

DENVER, April 10 (UPI) -- Savi Technology has extended its asset-management software technologies to address the evolving logistics requirements of the U.S. Defense Department.

SAN JOSE, Calif., March 30 (UPI) -- The U.S. Defense Department has certified that a network time-server technology from Symmetricom Inc. has met global positioning system security requirements.

CHICAGO, March 23 (UPI) -- The U.S. Defense Department has exercised a contract option with Advanced Life Sciences Holdings Inc. to continue development of a biological defense therapy.

TEWKSBURY, Mass., March 13 (UPI) -- The U.S. Defense Department has awarded a Phase II contract to Raytheon Co. to continue development of a non-lethal weapons technology.

SUNNYVALE, Calif., Feb. 25 (UPI) -- Silicon Graphics Inc. has been contracted by the U.S. Defense Department to support a computing modernization program.

ARLINGTON, Va., Feb. 18 (UPI) -- BAE Systems has been contracted by the U.S. Defense Department for the delivery of Mine Roller Systems and Hercules recovery vehicles.