Airmen assigned to the 307th Aircraft Maintenance Squadron prepare to load naval mines aboard a B-52 Stratofortress at Barksdale Air Force Base, Louisiana, July 17, 2018. Navy contractors worked with Airmen from the 307th Bomb Wing to test new tail configurations to ensure they could be laid underwater by the jet. (U.S. Air Force photo by Master Sgt. Ted Daigle/Released)