Supreme Allied Commander Europe U.S. Air Force Gen. Philip M. Breedlove, center, shares a laugh with Chairman of the Joint Chiefs of Staff Army Gen. Martin E. Dempsey, right, during the International Security Assistance Force and U.S. Forces-Afghanistan change of command ceremony Aug. 26, 2014, in Kabul, Afghanistan. During the event, Marine Corps Gen. Joseph F. Dunford Jr. relinquished command to Army Gen. John F. Campbell.