A B-1 bomber thunders toward the Utah Test and Training Range to employ six GBU-54 Laser Joint Direct Attack Munitions as part of a Combat Hammer exercise at Ellsworth Air Force Base, S.D., May 15, 2012. The LJDAM is a 500-pound, dual-mode guided weapon that is equipped with a laser seeker, which aids in its ability to engage both stationary and moving targets. (U.S. Air Force photo by Airman 1st Class Alystria Maurer/Released)