Please note the Russians won the Winter War, about a fifth of Finland was transferred to the Soviet Union. The Japanese made peace with Russia in 1905 as they were approaching bankruptcy and the international banking community would not continue to advance credit. Russia paid Japan back in 1945 in a crushing way.
The adage is Russia always wins the final battle no matter how long it takes.
A Russian defeat in the Ukraine will mean a Cold War 2 and a much more powerful Russian military bent on revanch.
The Poles are wise to seek NATO nukes to be stationed on their territory as a hoped for insurance against what a future Russia will be.
China will happily encourage real emnity between Russia and the NATO-US would be world order with credit, armaments and encouragement to confront the Yankees
“ A Russian defeat in the Ukraine will mean a Cold War 2 and a much more powerful Russian military bent on revanch.”
I doubt Russia will be able to afford that. And it’s likely their “friend” China has something up their sleeves once Russia’s military is diminished after this war. They lust after Russia;s resources.
I assume Putin's gone. So whenever that happens, I think 3 scenarios may happen. #1 - Russia reopens to the West. #2 - Russia gets behind a Putin successor so they will continue to isolate themselves but it does not mean their military will reinvent themselves. #3 - Russia collapses so provinces like Chechnya secedes.