U think North Koreans are interested in invading South Korea, are you for real? They are planing to invade US my friend, and whatever they have in terms of weaponry, whether it is their nukes or the H-bomb they have recently claimed that they have tested, or some advance star movies shit, but they are onto something. I think US should show some maturity in here, North Korea isn't Afghanistan or Iraq or Syria or any other gulf Country that will fight for their sovereignty for decades. They know that if US ever tried to wage a war against them they have only one chance and to avail that chance they must have to Nuke as many US cities as they can. How they gonna do it? I am not an expert in Nuclear technology neither I have a phd degree in ICBM technology. But what they have claimed so far, I believe them. One thing is for sure, they ain't speak shit like Americans do.