It's getting harder and harder to justify WW2 with that logic.
Not only that, NK is not ABOUT to go nuclear. It's been assumed since 1998 that they have had between 1 and 3 bombs.
That's the real lesson here. NK is untouchable, but at least isolated.
If the Ayatollahs get nukes they will also be untouchable, but they will also continue their support for Jihadist terrrorism around the world at the same time. A dangerous combo.