The problem as I see it is that NK has been labelled by GW as part of the "Axis of Evil" in that war. One of scenarios that makes sense to me is that it would be extremely desireable to move the troops out of the area if you were planning to turn the target area into a peninsula of glass. We've been worried that the NK's would get the weapons of mass destruction they crave, but have been somewhat soothed by their lack of a suitable delivery vehicle to reach our coastline. But if they have the nukes or are very close to getting them then a strike against our troops or the whole south of the country becomes much more credible. IOW, they don't need a huge ICBM to deliver the device just a few hundred miles. That's what is behind this sudden realignment IMHO.
I heard this on the radio at the top of the news hour and a red flag went up immediately. They said we're pulling troops out of Germany and SK. Your scenario sounds like a real possibility.
Here's one of backhoe's latest gems...Israel's Arrow & THEL
http://www.freerepublic.com/focus/news/772713/posts
BAGHDAD, Iraq (AP) Series of huge explosions heard in Baghdad near national conference gathering.