What effect does cold weather have on Soviet soldiers and civilians?

He must destroy Moscow quickly! The severe cold also brought great difficulties to Soviet soldiers and civilians, who had to dig tank trenches and set up obstacles in freezing weather. The Red Army soldiers who grew up in the cold fought at home, and their supply and adaptability were much stronger than those of the German army. Soviet machine guns are covered with holsters to prevent freezing; The weapon is coated with winter lubricating oil, which is very flexible to use; The soldiers were dressed warmly enough to keep out the cold.