Except that Ukraine isn't an ally, at all, not to mention that War with the Russians probably isn't a good idea from sane perspectives, particularly in their own backyard.The correct move is whatever it takes to stop nations from invading an allied country. If that's sinking every Russian ship, buzzing the ground troops with fighters or having a sit down with their leader, it needs to be done.
We tried the isolationist theory before and it did not end well for anyone. Sometimes you have to puff out your chest and sometimes you have to throw punches.
I know it goes against the pussified liberal teaching but...
Sometimes fighting is the right thing to do.
Oh, wait. I said sane perspectives, didn't I? That rules out raving Righties in support of a Neocon agenda, I suppose.