Chinese submarine rescue vessel "Changdao" prepares to leave a military port in Zhoushan City, east China's Zhejiang Province, June 15, 2016, for Hawaii, the United States, to participate in the Rim of the Pacific - 2016 multinational exercises. Missile frigate "Hengshui", missile destroyer "Xi'an", supply ship "Gaoyou Lake", hospital ship "Peace Ark", submarine rescue vessel "Changdao", three helicopters and more than 1,200 soldiers would attend the exercises. (Photo/Xinhua)
