Dan Drezner has the scoop on each candidate's foreign policy priorities. Huckabee's makes for especially depressing reading; I don't agree with the thrust of Richardson's arguments, but at least he has an argument while Huckabee quite plainly has no feel or grasp of major foreign policy issues. His writings and his grand strategy--to the extent that one can be divined from his article--are a mushy mess.
Incidentally, I too oppose the Law of the Sea Treaty. I put out my reasons for opposing it here. It's nice to see that Huckabee agrees with my stance but I don't think he has any idea why he's supposed to agree.