Airman 1st Class Tyler Taffner, 28th Aircraft Maintenance Squadron weapons load crew member secures a GBU-31 to a munitions trailer during the Combat Hammer exercise at Ellsworth Air Force Base, S.D., Feb. 14, 2014. Each day of the exercise, two B-1 bombers were loaded and flown by aircrews from the 34th Bomb Squadron to the Eglin Test and Training Complex Range at Eglin AFB, Fla., to test the effectiveness, maintainability, suitability and accuracy of these precision guided munitions. (U.S. Air Force photo by Airman 1st Class Rebecca Imwalle/ Released)