An F-22A Raptor from Joint Base Langley-Eustis, Va., takes off during the 40th anniversary of the Red Flag combat training exercise, Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 3, 2015. Red Flag is a realistic combat training exercise designed to simulate the first few weeks of a major theater campaign involving air, space and cyber forces of the U.S. and its allies. It is conducted on the bombing and gunnery ranges on the Nevada Test and Training Range. (U.S. Air National Guard photo by Master Sgt. Carlos J. Claudio)