NELLIS AFB, Nev. - A B-52H Stratofortress from the 96th Bomb Squadron, Barksdale Air Force Base, La., prepares to taxi the runway for a night sortie at Nellis AFB, Nev., during Exercise Red Flag Feb. 2. The purpose of Exercise Red Flag is to train pilots from the U.S., NATO and other allied countries for realistic combat scenarios. This includes the use of live ammunition for bombing exercises within the Nevada Test and Training Range. (U.S. Air Force photo by Kevin Cox)