Members of the Global Strike Challenge team evaluate U.S. Air Force Senior Airman Luis Sanchez, 307th Aircraft Maintenance Squadron weapons loader, as he prepares a trailer of simulated MK-82, 500-pound general purpose bombs, for loading in the bomb bay of a B-52 Stratofortress at Barksdale Air Force Base, La., Oct. 5, 2011. The Global Strike Challenge is the world's premier bomber, Intercontinental Ballistic Missile and security forces competition with units from the Air Force Global Strike Command, Air Combat Command, Air Force Reserve Command and the Air National Guard, and the official score-posting will be at Barksdale, Nov 8-9. (U.S. Air Force photo by Master Sgt. Greg Steele/Released)