Russia can't even take the country next door.
Neither could the Weimar Republic.
With a bunch of rusty nukes that almost certainly no longer work, and that would get their (relatively few) major population centers vaporized by nukes that almost certainly work just fine?
Even 1% of Russia's arsenal being functional would be a problem, and I can imagine someone taking a gamble on "will Germany/France/England want to take a nuke to the face over the Baltics?"