A U.S. Air Force F-22 Raptor assigned to the 90th Fighter Squadron, Elmendorf Air Force Base, Alaska, receives fuel from a KC-135 Stratotanker assigned to the 465 Air Refueling Squadron, Tinker AFB, Okla., near Guam, Feb. 17, 2010. (U.S. Air Force photo/Staff Sgt. Andy M. Kin / Released)