So if you've been keeping up with the news lately you know that North and South Korea are disputing. In short, two South Koreans got their legs blown off by a landmine on the border between the two countries, South Korea broadcasts anti-North Korea messages, North Korea doesn't like that and denies involvement with the landmine incident, negotiations currently under way, hostilities on the rise. That in and of itself wouldn't be much to worry over, I mean these countries have been through worse. BUT THEN. http://news.yahoo.com/korea-slams-north-over-submarine-artillery-deployments-101404618.html North Korea mobilizes a ton of artillery and almost every one of its submarines, South Korea understandably worried, North Korea is also preparing for missile launches. http://www.nknews.org/2015/08/north-korea-conducting-missile-launch-preparations-yonhap-news/ The negotiations continue as I type this, apparently without resolution. I'm still dubious as to whether this will go to full on warfare, but it sure is seeming this way.
Let's recruit history here and just read that stuff. North Korea has bluffed every. SINGLE. TIME. Nope. They know they would lose. They need allies to have a chance.