Three countries we really shouldn't be fuckng with right now. China, which reagrdless of what is being said, nothing will happen. To much trade to fuck that all up. Isreal, which we won't attack as they are a friendly nation. Last, but most ceratainly not least, North Korea. If one really thinks about it. They have absolutely nothing to lose by invading South Korea. If that happened, I do believe we would be fucked.