Border guards patrol on horseback in Tibet

Border guards take a break by a stream during border patrol in Ngari Prefecture, Southwest China's Tibet Autonomous Region on June 8, 2017. (Photo/Xinhua)

Border guards patrol on horseback in Ngari Prefecture, Southwest China's Tibet Autonomous Region on June 8, 2017. (Photo/Xinhua)

Border guards patrol on horseback in Ngari Prefecture, Southwest China's Tibet Autonomous Region on June 8, 2017. (Photo/Xinhua)