Sailors aboard the amphibious dock landing ship Kunlunshan (Hull 998) connect a fuel probe from a new comprehensive supply ship (not commissioned) during a replenishment-at-sea training exercise in the waters of the South China Sea on May 25, 2017. They are attached to a landing ship flotilla of the South China Sea Fleet of the PLA Navy. (eng.chinamil.com.cn/Photo by Liu Jian)