Plateau border troops brave heavy wind and snow in Tibet(1/5)

Soldiers patrol the border in snow in Southwest China's Tibet autonomous region with the temperature dropping to minus thirty degrees Celsius on January 14, 2020. The sentry post, located near the Lake Manasarovar in Ngari prefecture has an average altitude of over 4,800 meters above sea level. (Photo: China News Service/ Liu Xiaodong/ Dang Hongbo)

Soldiers patrol the border in snow in Southwest China's Tibet autonomous region with the temperature dropping to minus thirty degrees Celsius on January 14, 2020. The sentry post, located near the Lake Manasarovar in Ngari prefecture has an average altitude of over 4,800 meters above sea level. (Photo: China News Service/ Liu Xiaodong/ Dang Hongbo)

Soldiers patrol the border in snow in Southwest China's Tibet autonomous region with the temperature dropping to minus thirty degrees Celsius on January 14, 2020. The sentry post, located near the Lake Manasarovar in Ngari prefecture has an average altitude of over 4,800 meters above sea level. (Photo: China News Service/ Liu Xiaodong/ Dang Hongbo)

Soldiers patrol the border in snow in Southwest China's Tibet autonomous region with the temperature dropping to minus thirty degrees Celsius on January 14, 2020. The sentry post, located near the Lake Manasarovar in Ngari prefecture has an average altitude of over 4,800 meters above sea level. (Photo: China News Service/ Liu Xiaodong/ Dang Hongbo)

Soldiers patrol the border in snow in Southwest China's Tibet autonomous region with the temperature dropping to minus thirty degrees Celsius on January 14, 2020. The sentry post, located near the Lake Manasarovar in Ngari prefecture has an average altitude of over 4,800 meters above sea level. (Photo: China News Service/ Liu Xiaodong/ Dang Hongbo)