Fucking nutjob. Really. Prepare for world war 3 because this guy is doing everything he can to make it happen. New alliances will be made; the long-standing USA/EU cooperation sentiment has died, and if he is about to declare war on one of USA's most faithful allies throughout history, why would ANY country want to cooperate?
It's a sick and twisted situation. A few years ago, no one would have thought any of this would happen.
Denmark is so fucked if he decides so do it.