A U.S. Airman with the 437th Aerial Maintenance Squadron based at Joint Base Charleston, S.C., guides a C-17 Globemaster III aircraft during a large formation exercise at Fort Polk, La., Dec. 16, 2010.
Airmen from airlift squadrons at Joint Base Charleston and Soldiers from the Operations Group, Joint Readiness Training Center at Fort Polk conducted aerial refueling, personnel drops and other airborne operations during the exercise. (DoD photo by Tech. Sgt. DeNoris A. Mickle, U.S. Air Force). Original public domain image from Flickr