Border defense soldiers conduct training in severe cold(7/8)

Soldiers sleep on their camp beds in a heat-preserving tent on January 20, 2016. A border defense regiment with the Heilongjiang Provincial Military Area (PMA) of the PLA organized its officers and soldiers to conduct a field drill in a frigid environment of over 30 degrees below zero in Heihe, northeast China's Heilongjiang Province, on January 20, 2016. (Photo/China Military Online)