Japan Maritime Self-Defense Force Rear Adm. Yasuki Nakahata, at lectern, addresses reporters during a press conference marking the opening of Rim of the Pacific (RIMPAC) 2014 at Joint Base Pearl Harbor-Hickam, Hawaii, June 30, 2014. RIMPAC is a U.S. Pacific Fleet-hosted biennial multinational maritime exercise designed to foster and sustain international cooperation on the security of the world's oceans.