Putin is more of a nut than the dood in Iran. U.S. should jump all over this.. BOOM MFer... Huh?..What? ....Summore? thats what I thought, get the hell out... NOW!
I'm sure the subs are there all ready.
The US won't mess with anybody with the ability to fight back...

Iraq 'might' have nukes (read; doesn't), US invades.
Iran is trying to create a civilian nuclear program, which would give them the ability to have nuclear missiles; US threatens to invade.
North Korea makes it clear that they want to make offensive nuclear weapons; US negotiates with the unspoken possibility of military action on the table.
Russia, which already has nuclear missles, invades a small country; US wags their finger.
The US won't intervene in this matter, I don't think. I certainly hope we don't, at least.