CENTCOM change of command
Marine Corps Gen. James N. Mattis, outgoing commander of U.S. Central Command, receives a standing ovation from the audience. Defense Secretary Chuck Hagel, Army Gen. Martin E. Dempsey, Chairman of the Joint Chiefs of Staff, and Army Gen. Lloyd J. Austin, III, incoming commander, during the change of command ceremony, MacDill Air Force Base Fla., March 22, 2013. Mattis will retire later this year after more than 40 years of service. (U.S. Air Force photo by Senior Airman Melanie Bulow-Kelly)