An F-16CJ, assigned to the 79th Fighter Squadron, Shaw Air Force Base, S.C., sits on the flightline during Red Flag 16-3 before take-off at Nellis Air Force Base, Nev., July 25, 2016. Flying units from around the globe deploy to Nellis AFB to participate in Red Flag held four times a year. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An F-16C, assigned to the 119th Fighter Squadron, Atlantic City Air National Guard Base, N.J., takes off on the first day of Red Flag 16-3 at Nellis Air Force Base, Nev., July 11, 2016. Red Flag is a realistic combat exercise involving multiple military branches conducting training operations on the 15,000 square mile Nevada Test and Training Range. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An F-16CJ, assigned to the 79th Fighter Squadron, Shaw Air Force Base, S.C., sits on the flightline during Red Flag 16-3 at Nellis Air Force Base, Nev., July 25, 2016. Red Flag was established in 1975 as one initiative of directed by General Robert J. Dixon, then commander of the Tactical Air Command, to better prepare U.S. forces for combat. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An F-16CJ pilot assigned to the 79th Fighter Squadron, Shaw Air Force Base, S.C., waits as the jet receives mid-air refueling during Red Flag 16-3 over the Nevada Test and Training Range, July 27, 2016. Red Flag was established in 1975 as one initiative of directed by General Robert J. Dixon, then commander of the Tactical Air Command, to better prepare U.S. forces for combat. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An RC-135 assigned to the 38th Reconnaissance Squadron Offutt Air Force Base, Neb., sits on the flightline before night operations during Red Flag 16-3 at Nellis Air Force Base, Nev., July 26, 2016. Red Flag involves a variety of attack, fighter, bomber, reconnaissance, electronic warfare, airlift support, and search and rescue aircraft. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An RC-135, assigned to the 38th Reconnaissance Squadron Offutt Air Force Base, Neb., prepares for take-off during Red Flag 16-3 at Nellis Air Force Base, Nev., July 26, 2016. Red Flag provides an opportunity for aircrew and military aircraft to enhance their tactical operational skills alongside military aircraft from coalition forces. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

Maintainers assigned to the 79th Fighter Squadron, Shaw Air Force Base, S.C., work on an F-16CJ during Red Flag 16-3 at Nellis Air Force Base, Nev., July 25, 2016. Red Flag provides a series of intense air-to-air scenarios for aircrew and ground personnel which will increase their combat readiness and effectiveness for future real world missions. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An RC-135 assigned to the 38th Reconnaissance Squadron Offutt Air Force Base, Neb., prepares for night operations during Red Flag 16-3 at Nellis Air Force Base, Nev., July 26, 2016. The air-to-air combat training exercise is conducted over the 2.9 million acre Nevada Test and Training Range. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An F-22A Raptor, assigned to the 27th Fighter Squadron, Joint Base Langley-Eustis, Va., banks over the Nevada Test and Training Range, during Red Flag 16-3, July 27, 2016. All four branches of the U.S. Military participate in the Red Flag training conducted on the vast bombing and gunnery ranges of the Nevada Test and Training Range. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

A pilot assigned to the 38th Reconnaissance Squadron Offutt Air Force Base, Neb., boards an RC-135 before night operations during Red Flag 16-3 at Nellis Air Force Base, Nev., July 26, 2016. Red Flag enhances aircrew’s combat readiness and survivability by challenging them with realistic combat scenarios. (U.S. Air Force photo by Airman 1st Class Kevin Tanenbaum/Released)

An EA-18G, assigned to the Electronic Attack Squadron 139, Whidbey Island Naval Air Station, WA., sits in a hangar as maintainers repair the aircraft during Red Flag 16-3 at Nellis Air Force Base, Nev. 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)