Why the North might want war
Their military equipment is at least fifty years old, nearing or way past its "best before" date. Soon it will be of little use and North Korea has absolutely no money (or anything for that matter) to obtain new equipment. And, with the Soviet Union long gone, they've got no real friends either. Combine this with the fact that the North Korean regime probably truly believes that the United States and South Korea are out to get them, just waiting for the right moment to invade, and you end up with a regime that believes it's running out of time. Either they set off what they believe to be inevitable now that they still have the initiative, or they wait and watch their (largely imaginary) military prowess decay and fade away, leaving behind a carcass of a country, to be consumed by the vulturous America and South Korea.
So yes, in the crazy, self-induced world the North Korean regime lives in, a war would make sense.