A U.S. Air Force KC-135 Stratotanker assigned to the 22nd Air Refueling Wing, McConnell Air Force Base, Kan., prepares to land May 14, 2015, after a RED FLAG-Alaska (RF-A) 15-2 mission at Eielson Air Force Base, Alaska. The support the Stratotanker provides during aerial-refueling is vital to the success of the U.S. and coalition forces participating in RF-A. (U.S. Air Force photo by Tech. Sgt. Miguel Lara III/Released)