Naval ships attached to a far-sea joint training flotilla with the navy under the PLA Southern Theater Command conduct alongside and astern replenishment-at-sea during a maritime training exercise in waters of the Pacific Ocean on Feb. 7, 2019. The comprehensive supply ship Honghu (Hull 963) transferred solid and liquid cargoes simultaneously to the guided-missile destroyer Hefei (Hull 174), the guided-missile frigate Yuncheng (Hull 571), and the amphibious transport dock Changbaishan (Hull 989) during the replenishment-at-sea. (eng.chinamil.com.cn/Photo by Zhou Qiqing)