Senior Airman Nick Lunde, 28th Bomb Wing, 28th Aircraft Maintenance Squadron, Ellsworth Air Force Base, S.D., crew chief, perform final checks prior to launch during RED FLAG 14-3 on Nellis AFB, Nev., July 14, 2014. RED FLAG is a realistic combat training exercise involving the air forces of the U.S. and its allies. (U.S. Air Force photo by Tech. Sgt. Jerry Fleshman/Released)