A U.S. Air Force F-22 Raptor aircraft awaits midair refueling from a KC-135 Stratotanker aircraft June 26, 2014, during Red Flag-Alaska 14-2 at Eielson Air Force Base, Alaska. Red Flag-Alaska is a series of Pacific Air Forces commander-directed field training exercises for U.S. and partner nation forces, providing combined offensive counter-air, interdiction, close air support, and large force employment training in a simulated combat environment.