Airman 1st Class Brice Weathers, 28th Aircraft Maintenance Squadron load crew member, prepares a rotary launcher for bomb loading during the Global Strike Challenge at Ellsworth Air Force Base, S.D., Oct. 1, 2012. About 450 competitors take part in Global Strike Challenge competitions designed to evaluate security forces, bomber, missile and helicopter operations and maintenance. (U.S. Air Force photo by Airman 1st Class Kate Thornton-Maurer/Released)