WW3, eventually. The regime won't stop. The ambition is there to rebuild the USSR. That would mean starting a conflict with NATO and, if I'm lucky, NATO will actually involve.
Which part is gullible?
That current Russian regime won't stop? It's not like it would be a first time for them to invade another country.
Or did you mean NATO involvement? Who knows… I'd like to believe that they would involve, but I'm not guaranteed.