Megalomania

It is rare you get to read the megalomaniacal ravings of the North Korean leadership. Reuters has the complete text of the North Korean "declaration of (almost) war."

Notice their "this time we really, really do mean it" content:

They (U.S. & S. Korea) should clearly know that in the era of Marshal Kim Jong Un, the greatest-ever commander, all things are different from what they used to be in the past. 

This stuff is more fevered than the comments sections of a left-wing blog. Unfortunately for North Korea, they've cried "Wolf!" too many times for anyone to take them very seriously.