U.S. Air Force Lt. Col. Ronald Polomoscanik, 343rd Bomb Squadron navigator, returns from his last mission in a B-52H Stratofortress, July 12, 2014, Barksdale Air Force Base, La. Polomoscanik is retiring from the Air Force Reserve after 23 years of service, but is continuing in his avaition career as a Safety Inspector for the Federal Aviation Administration. (U.S. Air Force photo by Master Sgt. Greg Steele/Released)