I see another 'Chechnya' in this war. An 'internal' Russian matter. Ukrainian nationalism is nothing new to the Kremlin & they've dealt with it in the past. Sending nato troops into Ukraine is not going to happen. Ukraine could end up partitioned east/west. But in holding eastern Ukraine [20% of the country] Russia will have a guerrilla war forever. Normally the Russians can neutralise resistance. But Ukraine has 500 million europeans sending money, food, clothes and weapons. Russia will bleed to death but it will take 20 years to be fully 'de-nazified'.