>>513793155
Because they lost the most after fighting Russia, depending on the country. Sweden lost Finland and couldn't keep enslaving them, they even lost their entire hold on Europe, Poland-Lithuania lost like 80% of its land, and the other Baltics were just sad that they couldn't get hatecrimed by Germans instead of Russians. Ukraine's entire identity is about hating Russia. And mind you, almost all of those countries invaded or fought against Russia not the other way around.