F-22A Raptors, assigned to the 27th Fighter Squadron, Joint Base Langley-Eustis, Va., sits on the runway before takeoff during Red Flag 16-3 at Nellis Air Force Base, July 25, 2016. In addition to daytime operations, Red Flag conducts training exercises during hours of darkness to train for low visibility environment. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)