Republic of Korea air force Airman 1st Class Chang Kyu Park and Staff Sgt. Heon Kyun Jeon, both from the 19th Fighter Wing, carry aircraft equipment during Buddy Wing 16-3 at Jungwon Air Base, Republic of Korea, March 30, 2016. Buddy Wing training, held multiple times a year, polishes the ability of the Republic of Korea air force and U.S. Air Force Airmen to train and operate as a combined force. (U.S. Air Force photo by Staff Sgt. Nick Wilson/Released)