The problem with Russia is...the Polish/Ukranian/Lithuanian tri-powers aren’t going to defeat Russia even with Nato air support. I’m not pro-Russian by any means, but I sincerely hope this is all posturing over oil/natural gas sales. I mean, do we really want to fight Russia on their turf?
Wouldn’t that be kinda like rolling into Lincoln, Nebraska with your #1 rated college football passing attack and playing the Cornhuskers on a cold windswept day?
Might work...might not.
I don't know why that situation would exist of NATO not joining the fight except for air, but I wouldn't bet on your outcome.
Our air capabilities against a Russian Army is incredible.