148th Fighter Wing
U.S. Air Force Tech. Sgt. Sterling Hartwick and Staff Sgt. Chad Rochwite, both from the148th Fighter Wing, Duluth, Minn., perform repairs to the air refueling door on an F-16, Aug. 10, 2015, while participating in RED FLAG-Alaska 15-3 at Eielson Air Force Base, Alaska. RF-A is a Pacific Air Forces commander-directed field training exercise 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. (U.S. Air Force photo by Master Sgt. Ralph Kapustka/Released)