I don't buy the narrative that Russia wants to expand. Of course, I could be 110% wrong. Putin felt he was being pushed around. On February 24th he had enough. I believe if the West said, Ukraine will not be militarized and you can keep trying to take it over we woudln't be here today. Just my 2-cents.

But if I'm wrong, and he is an expansionist dictator than we should be fighting him directly right now. Is humanity going to spend the next millions of years doing nothing because someone has nukes?

We haven't worked hard to reduce nukes in the world. What should we expect? Thanks for the comment!