Sailors wearing Mission-Oriented Protective Posture (MOPP) gears prepare for a chemical defense training exercise aboard the guided-missile frigate Xinyang (Hull 501) during a 4-day round-the-clock maritime training exercise conducted by a frigate flotilla with the navy under the PLA Northern Theater Command in waters of the Yellow Sea from May 8 to 12, 2019. (eng.chinamil.com.cn/Photo by Wang Guangjie, Qie Haitao and Jiao Penghang)
Source：China Military Online
