This is something you should probably know about. I agree with the second article, below, that it seems a lot like saber rattling, but they've got some pretty big sabers going on, and there is a chance things could get ... interesting.
Rising animosity between Iraqis and Kurds raises risk of war, from The Independent.
Iraq's Kurds: We don't want a new war with Iraq, from Niqash.
So, yeah. I don't really think anything's going to happen, but just in case, you should probably be aware that something could.