Army Gen. John F. Campbell, left, outgoing commander of U.S. Forces Afghanistan and NATO’s Resolute Support Mission, and Army Gen. John W. Nicholson Jr., incoming commander, shake hands other after a change-of-command ceremony in Kabul, Afghanistan, March 2, 2016. Marine Corps Gen. Joseph F. Dunford Jr., right, chairman of the Joint Chiefs of Staff, and Army Gen. Lloyd J. Austin III, left, commander of U.S. Central Command, attended the ceremony. Air Force photo by Staff Sgt. Tony Coronado