rh200, Ukraine is not a NATO member state luckily so its none of NATO's concern. Even if they were to ask for assistance one would have to question the benefit of doing so, NATO is not some kind of world policeman. If the ''North Atlantic'' Treaty Organisation had not moved to the east then likely none of this would be happening. I can say the same about the EU. There was no need for NATO expansion post 1990 and actually an argument for NATO disbandment.