But the question is, who?
North Korea would be a cluster feck of epic proportions, which South Korea would pay the butchers bill for.
Iran could spark something much larger in the region, and I think the Iranian capabilities greatly exceed Iraqs. If that did kick off, and Russia did not get involved, no doubt the Iranian military would be defeated, but the cost would be far more expensive in loss of life I think than Iraq, or Afghanistan combined.
Some central or south American country that has no geo-political big brothers?