Col. Reid Langdon, 36th Operations Group commander, checks an M117 fuse in a B-52 Stratofortress bomb bay before launching his fini-flight June 25, 2015, at Andersen Air Force Base, Guam. During his last official flight as a master navigator, Langdon’s crew dropped the munitions during a training mission. (U.S. Air Force photo by Senior Airman Alexander W. Riedel/Released)