DOD announces that US Cyber Command, headquartered at Fort Meade, Md., has reached full operational capability. Defense Secretary Robert Gates directed US Strategic Command on June 23, 2009, to immediately establish the new command, which celebrated initial operational capability on May 21, 2010.
The U.S. began extensive air and artillery strikes against Islamic State group targets in Syria on Dec. 19 in retaliation for the killing of three Americans on Dec. 13 by a gunman affiliated with ISIS, U.S. officials said.

