Soldiers stick to their post at the border in spite of the severe cold in Mohe,northeast China's Heilongjiang Province, where the temperature has dropped to minus 40 degrees Celsius.

(Xinhua/Li Gang)

(Xinhua/Li Gang)

Soldiers take part in a training in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018. 

More Images
(Xinhua/Li Gang)

Soldiers stick to their post at the border in spite of the severe cold in Mohe,northeast China's Heilongjiang Province, where the temperature has dropped to minus 40 degrees Celsius.

(Xinhua/Li Gang)

Soldiers take part in a training in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

A soldier is on duty in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

Soldiers are on patrol in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

A soldier takes part in a training in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

Soldiers check thermal protection in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

Soldiers take a break during the patrol in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

A soldier is on duty in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018. 

(Xinhua/Li Gang)

(Xinhua/Li Gang)

Soldiers are on patrol in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018. 

(Xinhua/Li Gang)

(Xinhua/Li Gang)

A soldier takes part in a training in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

(Xinhua/Li Gang)

Soldiers check thermal protection in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018. 

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

(Xinhua/Li Gang)

Soldiers take a break during the patrol in Beiji Village of the border county Mohe, northeast China's Heilongjiang Province, Feb. 5, 2018.

(Xinhua/Li Gang)

(Xinhua/Li Gang)