Kim Jong-un is Target Number 1

If we get back into a shooting match with North Korea who will be target #1? It will be Kim Jong-un, the Chairman of the Workers' Party of Korea and the DPRK's supreme leader. He better hide good too because the American B-1 bomber is nothing to sneeze at, but rather be feared. The B-1 is a cold war era bomber designed to penetrate Soviet defenses and deliver nuclear weapons.

THIS IS WHY KIM JONG UN IS AFRAID OF B-1B LANCER

I would be pretty sure that even in the cold war, which was some time ago, the Soviet defenses were more robust than the present DPRK defenses. Even if the B-1 couldn't reach Kim Jong-un, the B-2 could deliver his final reward from many thousands of feet in the sky, and he would have no idea it was coming. For him it would be suddenly, lights out.

The paranoid Kim Jong-un is so worried that the US will eventually try to get him, he is taking aggressive action which will make it more likely. He has miscalculated the situation in a suicidal way.