Finland actually lost both the Winter War and the Continuation War against the USSR, it's a common misconception that they won. Poland did beat the Soviets though, at the time of the Russian Civil War.
But we know that the real reason USSR fell apart was because of Pizza Hut :)
POV Me Enjoying eating my Lays Pizza Hut while looking at the Soviet Union collapse.
(I’m polish) (also thanks for letting me know about Finland’s loss On the winter war)
Finns see it as a win, as we caused more damage to them than they did to us, and we still kept independence. They only took land for like, same size than the freaking FAROE ISLANDS