A B-52H Stratofortress copilot practices an aerial refueling with a KC-135 Stratotanker on July 10, Barksdale Air Force Base, La. The B-52 is assigned to the Air Force Reserve Command's 307th Bomb Wing, which hosts the only schoolhouse where Reserve and Active Duty aircrew learn to fly the B-52. (U.S. Air Force photo by Master Sgt. Greg Steele/Released)