Two U.S. Air Force Airmen salute as Col. Kevin J. Robbins, 1st Fighter Wing commander, returns from his “fini flight” at Langley Air Force Base, Va., July 12, 2013. The “fini flight” tradition was first officially noted in Vietnam, when the aircrew commemorated the completion of 100 missions. (U.S. Air Force photo by Senior Airman Kayla Newman/Released)