I knew an old guy from Germany that was a paratroopers in WWII. ( Yes, the Wehrmacht had paratroopers too ) The last year of the war the paratroopers were shuttled by train between the eastern and western front as needed. When they were on the eastern front they fought the Red Army like brave savages. On the Western front the put up mild resistance. You can see the dynamic there.
A German colleague of mine told me his dad dug a foxhole, covered it with sticks and leaves, and waited 3 days for the American front to arrive. The SS shot anyone who came back to the German lines.
During German business meetings in the 1980’s we would have to stop talking when a US jet would fly over at low altitude. The Germans said it was either that or Russian planes. They preferred US planes.