A 465th Air Refueling Squadron aircrew and U.S. Air Force Reserve KC-135 Stratotanker out of Tinker Air Force Base, Oklahoma, refuel an F-16 Fighting Falcon from the 18th Aggressor Squadron at Eielson Air Force Base, Alaska, May 14, 2019, during exercise Northern Edge. Northern Edge provides effective, capabilities-centered joint forces, ready for deployment worldwide and enables real-world proficiency in detection, identification and tracking of units at sea, in the air and on land and respond to multiple crisis in the Indo-Pacific region. (U.S. Air Force photo by Tech Sgt. Bobby Jackson)