U.S. observers view the search-and-rescue exercise aboard Chinese navy's missile destroyer Qingdao near Hawaii, the United States, Sept. 9, 2013. Four naval ships, including Chinese navy's missile destroyer Qingdao, missile frigate Linyi and USS Lake Erie, and three helicopters, conducted a joint search-and-rescue exercise near Hawaii on Monday. (Xinhua/Zha Chunming)
