Marker buoys along a sunken pipeline stretch from Dogu Beach to merchant vessel Wheeler, stationed several miles off the coast, to simulate pumping fuel from an off-shore vessel to improvised an fuelling station during a Combined Joint Logistics Over-the-Shore Exercise (CJLOTS) April 17, 2013. CJLOTS is an annual exercise comprised of more than 1,200 personnel from 43 commands working in conjunction with the Republic of Korea's military forces. (U.S. Coast Guard photo by Petty Officer 2nd Class Etta Smith/Released)