U.S. Navy Adm. Harry Harris, center, the commander of U.S. Pacific Fleet, takes questions during a press conference marking the beginning 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.