Soft war is never won.
I remember hearing a recording of a message broadcast across Germany after the surrender. It began with the line “We aren’t here to be your friends”. It then explained that any further resistance would be met with overwhelming force of arms. Then there was a round of trial free executions for low level nazis who thought that they could just blend in and disappear.
The allies weren’t completely lawless at the end of the war either. My grandfather said that there were a fair number of allied troops who were charged with crimes against the German people. Apparently it was a big deal when a soldier got dunk and opened fire on a bunch of German POWs.
Crimes against individual German people, surely, but not “crimes against humanity.” That was something of which only axis members could be guilty, even if the acts in question were known to have been committed by the allies as well. Which gave us the satisfaction of punishing evil alongside our good friends the Russians.