No, but we can destroy their air force and fleet in the Black Sea area.And do what, exactly; invade Russia?
Non-nuclear response that never-the-less would severely punish Russia.
Only 'invasion' that may happen is Japan deciding to retake the Kuril's, which Russia has illegally occupied since the end of WW2.
We wouldn't need to send many troops, Poland and the Baltic's are itching to push the Article 5 button, and most US force would be directed at the Russian air force and Black Sea fleet.No, they don't, or they would have invaded the Baltic states already.
Letting them in obligates us to go to war with Russia immediately. Send our troops in to fight Russian troops. It's a horrible idea that ends with nukes. You got a bunker?
Also, I am reading maps of likely nuke targets, fallout plume areas, and water drainage's; I'd recommend most people here do the same. You don't need a bunker or vault to survive nuclear war, you just need to not be near a target when things go down and have supplies/plans to get away from/shelter from fallout plumes/blast waves.
You also forget Russia already considers this a 'war with NATO', and are undertaking these farces of a referendums/annexations; there is no 'off-ramp' to this conflict so long as Putin is in power in Russia and remains dead set on trying to keep his acquired lands. So best to start either figuring out how to possibly survive a nuclear conflict, or just get ready to die and quit bitching at those who are at least trying to figure out how to survive.