Patton was right...we should have cleaned up the Commies while were at it.
The few Nazis in the Ukraine are probably outnumbered by the remnants of the German Nazis and their descendants in Argentina and Brazil and of zero global interest.
Putins desire to re-constitute the Soviet Union and "Warsaw Pact", OTOH, is damned dangerous.
I say we should have nuked the Chinese Communist leadership back in the 1950s. By now they'd be a second Japan, peaceful and productive.