It feels like European Red Dawn…

This nuclear reactor thing is scary. There are claims they are placing explosives in it to threaten Europe with fallout.

At this point, I think NATO (and hence USA) should get involved in a limited basis.

Use NATO AirPower and disallow any Russian aircraft to operate over Ukraine.

Use special forces to go in and secure nuclear facilities.

Use NATO AirPower to neutralize targets that attack in any way nuclear facilities.