Does a professional, well-discipled army rape two million or more women, and murder anyone and every one they feel like murdering?
I’ve read some of the accounts from eastern Germany and Berlin. The first wave of Russians were quite disciplined and relatively well-behaved. But the guys just behind them were a bunch of wild animals.
They behaved correctly in kicking the Germans out of their homeland. In the Eastern European countries they took some liberties that western armies did not, but discipline was rigorously enforced by means a western culture would not accept.
The wave of rape, pillage and murder was deliberately incited by the Commissars, and the army staff knew it affected discipline. But after the hardships the soldiers endured getting there, they felt entitled to a release. It also served the communists’ purpose of not just defeating the Germans, but humiliating and destroying them. I consider it an exception under the circumstances.