China, U.S. hold joint maritime training in San Diego

A ship-borne helicopter hovers in the air to conduct search-and-rescue operation as the guided-missile frigate Daqing (576) attached to the Chinese PLA Navy and the USS Bunker Hill (CG 52) attached to the United States Navy (USN) steam in formation during China-U.S. joint maritime training in the waters near San Diego on Dec. 9, 2016. A Chinese naval fleet comprised of the guided-missile frigate Yancheng (546), the guided-missile frigate Daqing (576) and the comprehensive supply ship Taihu (889) concluded a four-day friendly visit to San Diego, on Dec. 9, 2016. (Photo/cnr.cn)