U.S. Army Gen. Martin E. Dempsey, right, chairman of the Joint Chiefs of Staff, talks with U.S. Army Gen. Lloyd J. Austin III; U.S. Air Force Gen. Philip M. Breedlove; U.S. Army Gen. John F. Campbell; and U.S. Marine Corps Gen. Joseph F. Dunford Jr. before the International Security Assistance Force and U.S. Forces-Afghanistan change-of-command ceremony in Kabul, Afghanistan, Aug. 26, 2014. Campbell assumed command from Dunford.