An Air Force Reserve Command B-52H Stratofortress comes in for a landing on Feb. 5, 2015, Barksdale Air Force Base, La. Piloting the aircraft is U.S. Air Force Maj. Matthew Callow and this marks his last flight in a B-52 before retiring from the Air Force after 20 years of service. (U.S. Air Force photo by Master Sgt. Greg Steele/Released)