Air refueling missions essential to ground troops
OVER IRAQ -- An F-16 Fighting Falcon moves into place behind a KC-135 Stratotanker. The KC-135 is from the 92nd Air Refueling Wing at Fairchild Air Force Base, Wash., and the crew flying it is from McConnell AFB, Kan. Thirty-five aircraft are refueled on an average day by coalition aircraft. (U.S. Air Force photo by Staff Sgt. Justin Jacobs)