Senior Airman Ryne Zeller, 340th Aircraft Maintenance Unit aircraft electrical environmental systems technician, performs a preflight check to ensure a KC-135 Stratotanker is safe to fly, Aug. 11, in Southwest Asia. The KC-135 provides aerial refueling support to Air Force, Navy and Marine Corps and allied nation aircraft. Airman Zeller is a native of Chandler, Ariz., and is deployed from the Arizona Air National Guard,in support of Operations Iraqi and Enduring Freedom. (U.S. Air Force Photo/ Staff Sgt. Robert Barney)