Iraq war Was fundamentally different. NK is extremely hierarchical, once the leadership is removed, the country can be reconstructed much easier. I can't say I care about Seth Bannons opinion.
China, who knows them best, seems to disagree. Otherwise they would have taken care of the Kim family years ago.
There were similar "this is different! It will be easy!" arguments made for Iraq as well, especially when people suggested it could be like Vietnam (in the quagmire sense, not US causalities sense)
