Tracked self-propelled howitzer systems attached to an armored regiment under the PLA Xinjiang Military Command (MC) rumble in formation to a designated training area at the foot of the Tianshan Mountains of northwestern China's Xinjiang Uyghur Autonomous Region in late May, 2018. (eng.chinamil.com.cn/Photo by Zhang Yinchun, Tao Jiale and Yuan Kai)
