Coast Guard Petty Officer 2nd Class Spencer Filzen (second from right), of Port Security Unit (PSU) 313 of Everett, Wash., talks with marines from the Republic of Korea while standing a joint, security watch at the Joint Operations Center during a Combined Joint Logistics Over-the-Shore Exercise (CJLOTS), April 20, 2013. PSU's deploy to conduct port security and defense operations in support of combatant commands by providing waterborne and land-based anti-terrorism force protection. (U.S. Coast Guard photo by Petty Officer 2nd Class Etta Smith/Released)