Looks like Yugoslavia did not get hit. But in the midst of the chaos, the Serbs, Croats, Bosnians and everyone else would go at each other.
The Philippines do not look like te were hit or were they? The US at this time still had some military bases. Also, what about US naval forces after the attacks, were there any rendevious points?
I do not think that tribes of Idaho would hae been able to over run a rump US government. Quite the opposite, they might assist the survivors of Montanna. I see Helena as the beacon for US survivors to get to. There will be all sorts of problems such as food and so forth,
Finally, I have always wondered about a scenerio where the US decides to take the hit and not launch a retalitory strike. The US is screwed but is the world in better shape? The USSR is still nuked by the Chinese, Brits, and French.