Sailors wearing Mission-Oriented Protective Posture (MOPP) gears use a pressure washing system to decontaminate the deck of the guided-missile frigate Huangshi (Hull 502) during a 4-day training exercise from May 27 to 30, 2018. They are assigned to a frigate flotilla with the navy under the PLA Northern Theater Command. (eng.chinamil.com.cn/Photo by Wang Guangjie)
