> What we don't have to do is to start a process like the one that led Germany from the defeat in WW1 to desires of revenge and WW2, or Russia from the defeat in the Cold War to the current attempt to create its empire again.

I note, grimly, that your positive example (Germany and Italy post-WW2) was precipitated by the total defeat, occupation and renovation of those two states by the victors of the war. That is not possible in the current situation, where the best case outcome is that Russia retreats to pre-2014 borders with Ukraine.