Defense Secretary Ash Carter, Marine Corps Gen. Joe Dunford, chairman of the Joint Chiefs of Staff; Army Gen. Joseph Votel, commander of U.S. Central Command; and Army Gen. Raymond A. "Tony" Thomas, commander of U.S. Special Operations Command, conduct a news conference in Tampa, Fla., March 30, 2016, following the change-of-command ceremonies for the two commands. DoD photo by Tiffany Miller