LANGLEY AIR FORCE BASE, Va. -- F-15 Eagles from the 71st Fighter Squadron return to Langley July 26 after participating in Combat Archer held at Tyndall Air Force Base, Fla. 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)