Sailors aboard the guided-missile frigate Daqing (Hull 576) prepare to conduct a replenishment-at-sea with the guided-missile frigate Yichang (Hull 564) during a maritime live-fire training exercise at an undisclosed sea area in the Yellow Sea from May 11 to 14, 2018. They are assigned to a destroyer flotilla with the navy under the PLA Northern Theater Command. (eng.chinamil.com.cn/Photo by Zhang Hailong)
