Republic of Korea Air Force F-15K Slam Eagle and Japan Air Self Defense Force F-15 Eagle aircraft park prior to take off during RED FLAG-Alaska 13-3 Aug. 12, 2013, Eielson Air Force Base, Alaska. RF-A enables joint and international units to sharpen their combat skills by flying simulated combat sorties in a realistic threat environment. Additionally, the training allows them to exchange tactics, techniques, and procedures and improve interoperability.(U.S. Air Force photo by Staff Sgt. Miguel lara/Released)