A Republic of Singapore F-16 Fighting Falcon assigned to the 425th Fighter Squadron, Luke Air Force Base, Ariz., taxis before launching from the ramp May 12, 2014, Eielson Air Force Base, Alaska. Aircraft from different bases are participating in exercise RED FLAG-Alaska 14-1, a two weeklong air combat exercise. (U.S. Air Force photo by Senior Airman Ashley Nicole Taylor/Released)