Lt. Col. Thad Middleton, 9 Air Refueling Squadron, commander, emerges from a KC-10 Extender after his final fight mission at Travis Air Force Base, Calif., June 4, 2015. Fini-flights are a traditional way to mark milestones in the career of aircrew, respected individuals of rank or repute, or a commander's departure to another command or retirement. Middleton's hometown is Port Huron, Mich. (U.S. Air Force photograph by Heide Couch/Released)