[vette6387]

“Shouldn’t we let them take the lead (and expense) of dealing with only fat guy in North Korea?”

Simple answer. Collectively, they don’t have the military muscle to “deal” with NK.

[JamesP81]

Simple answer. Collectively, they don’t have the military muscle to “deal” with NK.

I wouldn't be so sure of that. SK has an advanced military. I suspect they may not have the warm bodies to enforce an occupation of the North, but they do have the capability to crush their conventional warfighting capability in a very short period of time.

[Little Ray]

The South Koreans have plenty of muscle. The Japanese have a constitution that prevents them from deploying their ‘self defense forces’ but I’m sure they could come up with plenty of ‘volunteers.’
We can assist, but there is no point is leading. Nobody is going to agree with our solutions in a any case. Let the Japs and the South Koreans take the expense and heavy lifing.