Staff Sgt. Jamie Widrig, instructor and course director for the Mobile Command and Control Generator Course for the U.S. Air Force Expeditionary Center's Mobility Operations School at Fort Dix, N.J., works on the axle for a generator stand June 5, 2008, at the Center. Annually, the USAF EC trains more than 23,000 students in expeditionary- and mobility air force-based courses both with in-residence and distance learning. (U.S. Air Force Photo/Tech. Sgt. Scott T. Sturkol)