South Korea's Army could easily handle NK on their own. US air/naval strikes and resupply would be a big help, but not necessary.
"South Korea's Army could easily handle NK on their own."
They sure didn't the last time. And there's nothing to prevent their largest city from being obliterated by artillery.
Bush is handling NK pretty well- there are nothing but bad options there.
North Korea reportedly has a million man army. Based on what I've heard, there is no way the South Korean army could overcome a ground invasion and wholesale bombing of Seoul with conventional and chemical weapons.
The economic impact alone would be catastrophic.
From what I've heard from some old Korea guys, what you say is true, particularly when you consider NK's logistics problems. Long time ago a guy told me that the only reason we kept an army in SK was to keep the ROK army from invading the North.