Aircrew from the 37th Bomb Squadron “Tigers” step out onto the flightline prior to take off during a Combat Hammer at Ellsworth Air Force Base, S.D., May 14, 2012. Aircrews from both the 37th and 34th Bomb Squadrons flew six GBU-54 Laser Joint Direct Attack Munitions with a group of six B-1 bombers into the Utah Test and Training Range for weapons evaluation. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)