The concern regarding Korea is that it is not unimportant to the world. By its position, and the severe 'tectonic' geo-politics of North Asia, it is the most important place in the world. In comparison, whatever happens in the Middle East doesn't matter at all.

If one place in the Middle East blew up another and was in return blown up, life for most folk in the world would continue as it had...but North Asia is not like that.

Huge populations, massive world wealth, massive weapons, giant armies, massive industrialisation, historically unresolved 'bad blood', severe and competing claims for territory involving Korea, Japan, Russia and China, with the USA somehow feeling it too belongs in that mix as the dominant self-seeking gun-selling policeman of it all.

A conflict in North Asia will involve at least 70% of the world population for many years, and it won't be good for anyone at all. The millions of refugees will also overwhelm the world's capacities.

The USA's easy historical fix of simply invading a country when they are weak and taking their resources doesn't work in North Asia, but they will sell a lot of guns... everyone will sell a lot of guns...and so maybe that is the point.