A U.S. Air Force Airman marshals a B-52H Stratofortress from the 340th Weapons Squadron at Barksdale Air Force Base, La., April 23, 2015, at Dyess Air Force Base, Texas. As a part of the Weapons School Bomber Integration Stand-Off Weapons Training Week, two B-52s joined two B-1B Lancers from the 77th WPS, as part of a training sortie flown to expand knowledge of the platforms and capabilities of each bomber to Weapons School students. (U.S Air Force photo by Airman 1st Class Autumn Velez/Released)