The guided-missile destroyer Xi'an (Hull 153, L) and the comprehensive supply ship Chaohu (Hull 890, R) steam alongside with each other in preparation for a replenishment-at-sea during a recent maritime patrol mission conducted by a destroyer flotilla with the navy under the PLA Eastern Theater Command in waters of the East China Sea. (eng.chinamil.com.cn/Photo by Yin Pengfei)
