A U.S. Airman assigned to the 307th Maintenance Squadron checks the engine of a B-52 Stratofortress at Barksdale Air Force Base, Jan. 11, 2020. Each unit training assembly, Reserve Citizen Airmen from across the United States come to Barksdale to train with the 307th Bomb Wing. It is the only bomber wing in the Air Force Reserve Command. (U.S. Air Force photo by Master Sgt. Ted Daigle)