The missile destroyer Haikou, missile frigate Yueyang, back, and supply ship Qiandaohu, center, are seen during the supply at sea in Pacific Ocean, during the Rim of the Pacific (RIMPAC) multinational naval exercises on June 13, 2014. After 6 days' sail, the Chinese fleet participating in the Rim of the Pacific (RIMPAC) multinational naval exercises joined naval forces from Singapore and the United States in waters off Guam on Saturday. [Photo/Xinhua]