SEOSAN AIR BASE, Republic of Korea --   U.S. Air Force and Republic of Korea Air Force members pose for a photo at Seosan Air Base, Republic of Korea during Buddy Wing 17-3, March 30, 2017. This training is a Buddy Wing exercise, a regularly-scheduled exercise that occurs several times a year. It is based on realistic tactical requirements and missions expected of our ROK-U.S. combined and joint forces assuming various threats. (Courtesy photo)