Republic of Korea Marines sprint to take over an objective during a rehearsal of the amphibious assault portion of exercise Ssang Yong 14 March 29 at Dokseok, Republic of Korea. Ssang Yong, meaning twin dragons, exercises the interoperability and combined capability of ROK and U.S. Navy and Marine Corps forces. The exercise provides valuable military training based on realistic requirements and missions expected of ROK and U.S. forces here on the Korean Peninsula. The ROK Marines are with 7th Regiment, 1st ROK Marine Corps Division. (U. S. Marine Corps photo by Sgt. Anthony J. Kirby/Released)