Lt. Col. Adam Willis (left) presents the guidon of the 68th Airlift Squadron to Lt. Col. Casey Stewart (right) as Master Sgt Tracy Eubanks looks on during an assumption of command ceremony at the 68th Airlift Squadron auditorium on April 15, 2012. Lt. Col. Stewart directs the operations and activities of over 100 aircrew flying the C-5 Galaxy, the nation's largest military aircraft, providing combat ready aircrews in support of Air Force's worldwide airlift mission. (U.S. Air Force Photo/Tech Sgt. Carlos J. Trevino)