Three petty officers from U.S. Coast Guard Port Security Unit 313 of Everett, Wash., conduct a roving, security patrol along Dogu Beach during a Combined Joint Logistics Over-the-Shore Exercise (CJLOTS), April 20, 2013. PSU 313 along with Republic of Korea military forces provided 24-hour water-side and shore-side force protection during CJLOTS. (U.S. Coast Guard photo by Petty Officer 2nd Class Etta Smith/Released)