Sunset refueling
Refueling at sunset! An E-3 Sentry airborne warning and control system (AWACS) from the 513th Air Control Group, Tinker Air Force Base, Okla., is refueled by a KC-135 Stratotanker from McConnell Air Force Base, Kan., May 19, 2014. The KC-135 aircrew was made up of Reservists from the 931st Air Refueling Group at McConnell. (U.S. Air Force photo by Senior Master Sgt. Ray Lewis)