The guided-missile destroyer Qiqihar (Hull 121) attached to the navy under the PLA Northern Theater Command steams forward during a maritime training exercise in mid December, 2020. (eng.chinamil.com.cn/Photo by Zhang Hailong)

The guided-missile destroyer Qiqihar (Hull 121) attached to the navy under the PLA Northern Theater Command steams forward during a maritime training exercise in mid December, 2020. (eng.chinamil.com.cn/Photo by Zhang Hailong)

Sailors wearing Mission-Oriented Protective Posture (MOPP) gears man a hose in a damage control drill aboard the guided-missile destroyer Qiqihar (Hull 121) during a maritime training exercise in mid December, 2020. (eng.chinamil.com.cn/Photo by Zhang Hailong)

The guided-missile destroyer Qiqihar (Hull 121) attached to the navy under the PLA Northern Theater Command fires jamming bombs to mask the movement and avoid the missile attack during a maritime live-fire training exercise in mid December, 2020. (eng.chinamil.com.cn/Photo by Zhang Hailong)

The guided-missile destroyer Qiqihar (Hull 121) attached to the navy under the PLA Northern Theater Command fires its close-in weapons system at mock aerial targets during a maritime live-fire training exercise in mid December, 2020. (eng.chinamil.com.cn/Photo by Zhang Hailong)

The guided-missile destroyer Qiqihar (Hull 121) attached to the navy under the PLA Northern Theater Command fires its main gun at mock sea targets during a maritime live-fire training exercise in mid December, 2020. (eng.chinamil.com.cn/Photo by Zhang Hailong)