Three maintainers from the 748th Aircraft Maintenance Squadron, Royal Air Force Lakenheath, England, work near an F-15C Eagle at dusk during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. Maintainers are responsible for overseeing the day-to-day maintenance of aircraft, including diagnosing malfunctions and replacing components, and conducting various inspections to ensure the aircraft is functioning properly. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
An F-15D Eagle assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, takes off during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. Flying units from around the world come to Nellis AFB to participate in Red Flag exercises, which are held three to four times per year. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
Two F-15C Eagles assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, return from a sortie during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. Red Flag is a realistic combat exercise involving U.S. and allied air forces conducting training operations on the 15,000 square mile Nevada Test and Training Range. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
An F-15C Eagle assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, takes off during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. The squadron recently won the 2014 Raytheon Trophy as the U.S. Air Force's top fighter squadron. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
An F-15C Eagle assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, launches during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. Red Flag is a realistic combat exercise involving U.S. and allied air forces conducting training operations on the 15,000 square mile Nevada Test and Training Range. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
An F-15C Eagle assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, lands during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. The squadron recently won the 2014 Raytheon Trophy as the U.S. Air Force's top fighter squadron. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
An F-15C Eagle assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, sits on the flightline at dusk during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. Flying units from around the world come to Nellis AFB to participate in Red Flag exercises, which are held three to four times per year. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
Two F-15C Eagles assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, sit on the flightline at dusk during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. Red Flag is a realistic combat exercise involving U.S. and allied air forces conducting training operations on the 15,000 square mile Nevada Test and Training Range. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)
Four F-15C Eagles assigned to the 493rd Fighter Squadron, Royal Air Force Lakenheath, England, sit on the flightline at dusk during Red Flag 15-1 at Nellis Air Force Base, Nev., Feb. 2, 2015. Red Flag is a realistic combat exercise involving U.S. and allied air forces conducting training operations on the 15,000 square mile Nevada Test and Training Range. (U.S. Air Force photo by Tech. Sgt. Eric Burks/Released)