World War II wasn't just Germany. As a matter of fact, Poland was invanded jointly by Nazi Germany and the Soviet Union. I think you partly missed the point. Anyway..

It is certainly important to de-escalate, but it cannot happen under the Russian terms. The current war in Ukraine is a war of conquest. Moreover, it is genocidal (as dictator in Russia is questining the very existance of the Ukrainian nation). There must be serious consequences for this, otherwise we just go one or rather two centuries back when invading, conquering territories and enslaving the local populations was a norm.