The stupid evil terrorist KGB Putin is already threatening the United States and the rest of western civilization with nuclear attack daily, so we are all at risk whether the cowardly appeaseniks like it or not.
Doubtless he believes he has done ethnic Russians a great favor by reconquering their current homes. And he is getting cheers from them for having done it. Not a lot of buyers remorse from that quarter, at least not yet. A reconquest based upon that idea would probably not come close to the scope of the old USSR, but it would definitely expand the Russian territory and pride.
We do well to watch and pray with thanksgiving for the work of the Conqueror who comes from beyond earth. Because even if we are disgusted at the sight, what are we going to do? Leaning on the unaided, unguided strength of man will fail. Even the America of yesteryear was energized by what gospel it had left.