LANGLEY AIR FORCE BASE, Va. -- Staff Sgt. Harold Naggs, 71st Aircraft Maintenance Unit crew chief, performs a post flight inspection on an F-15 Eagle after it returned from Combat Archer July 26. Combat Archer is an air-to-air system evaluation in which pilots test the reliability and effectiveness data of aircraft and missiles and complete required training for their Air Expeditionary Force cycle. (U.S. Air Force photo/Senior Airman Vernon Young)