Night refueling
A RC-135 aircraft from the Offutt Air Force Base, Neb., is refueled by a KC-135 Stratotanker assigned to McConnell Air Force Base, Kan., during a night refueling exercise, Feb. 26, 2015. The KC-135 was operated by an aircrew made up of Air Force Reservists from the 18th Air Refueling Squadron, 931st Air Refueling Group, at McConnell. Reserve aircrews at McConnell consistently conduct air refueling exercises in order to practice refueling procedures as well as maintain proficiency. (U.S. Air Force photo by Senior Master Sgt. Ray Lewis)