Border guards gallop on horsebacks at the foot of the Pamir Mountains in southwest China's Xinjiang Uygur Autonomous Region on March 8, 2020. The horse patrol team assigned to a border guard company with the Kizilsu Military Sub-district under the PLA Xinjiang Military Command was carrying out a frontier patrol mission at the altitude of 3,842 meters. (eng.chinamil.com.cn/Photo by Liu Nansong and Chen Shengsheng)