It's called jealousy ! They can't feed their people. This is a way to keep their people from thinking how hungry they are. This guy is an idiot. Even their closest ally, ie China, has stopped supporting them. This idiot has cried wolf so many times we need to give him a little of what he wants.
Their leaders are INSANE! Daddy was insane and apparently baby boy inherited it. Notice their leaders never leave the country. Can you say 'paranoid psychosis'. The fool is going to start a world war if he fires on US targets. I things he's mostly posturing right now. He suffered a major humiliation when that long range rocket test failed so big and so publicly. And we've been flying manoevers in international waters near by. His little psycho mind is probably freaking. Most of this posturing is to look good for his own people and psych them into believing he has the upper hand.