Ellsworth Airmen exit the Pride Hangar as they leave for Nellis Air Force Base, Nev. for Red Flag Jan. 20, 2012. Red Flag is a two-week combat exercise designed to train pilots from the U.S., North Atlantic Treaty Organization and other allied countries in planning and executing a wide-variety of combat missions. (U.S. Air Force photo by Airman Alystria Maurer/Released)