Airmen assigned to the 51st Fighter Wing from Osan Air Base, Republic of Korea, participate in RED FLAG-Alaska 19-2 at Eielson Air Force Base, Alaska, June 10, 2019. RF-A is an annual U.S. Pacific Air Forces field training exercise for U.S. and international forces that enhances readiness of participating forces. (U.S. Air Force photo by Staff Sgt. Sergio A. Gamboa)