Members of the 2nd Munitions Squadron Global Strike Challenge team race against the clock to simulate arming Mk-82 bombs on Barksdale Air Force Base, La., Aug. 11, in preparation for the upcoming Global Strike Challenge competition. The Mk-82 is an unguided, low-drag, general-purpose bomb. (U.S. Air Force photo/Staff Sgt. Terri Barriere) (RELEASED)