U.S. Air Force Airmen assigned to the 633rd Air Base Wing go through a predeployment line as part of a deployment exercise Feb. 10, 2015, at Langley Air Force Base, Va. The exercise tested response times as well as the efficiency of the deployment line, which includes briefings, requirement checks and equipment issue. (U.S. Air Force photo by Staff Sgt. Natasha Stannard)