U.S. Air Force Staff Sgt. Joshua Patterson, 27th Aircraft Maintenance Unit, unloads munitions during the phase II combined unit exercise at Langley Air Force Base, Va., Dec. 13, 2012. Wing Exercise Evaluation Team members assessed the ability of the 633rd Air Base Wing, 1st Fighter Wing and 192nd Fighter Wing to deploy. (U.S. Air Force photo by Staff Sgt. John D. Strong II/Released)