Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 3, 2015
Colonel Robert Grey (left), 192nd Fighter Wing Commander and a 1st Fighter Wing pilot, both from Joint Base Langley-Eustis, Va., step to their jets 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 involving the 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/Released)