@Brandon9000,
There's no evidence the leader is mentally ill, he's ruthless like many dictators, but ruthlessly getting rid of potential rivals is what dictators do to stay in power.
You're just trying to justify a military adventure, because the truth is Kim Jong Un does not want to jeopardise his living god lifestyle.
The last missile NK tested exploded before taking off, and America's anti ballistic technology is state of the art. NK's missiles are hardly that. NK has submarines too, if they're going to attack mainland US with nuclear weapons they're more likely to go that route, or even smuggle one into to US.
If you're going to attack NK at least be honest about your reasons for doing so, allowing a war time president to win the next election. It worked for Dubya. Who gives a **** about all the South Koreans and Japanese who would die in Trump's military adventure anyway, as long as the Merkin deaths are kept nice and low.