Maj. Jwa-Ryong Park puts his helmet on, part of his preparations before taking off in his KA-1 aircraft April 15, 2010, at Osan Air Base, Republic of Korea. Major Park is the 237th Tactical Fighter Squadron intelligence commander from Seoul, ROK. Major Park and 237th TFS members are here participating in Buddy Wing, a joint, bi-yearly training exercise involving the ROK Air Force and the U.S. Air Force. (U.S. Air Force photo/Staff Sgt. Stephenie Wade)