Normal diplomatic relations will not work with the little fat dictator...
Simple solution. Station BBQ grills every 500 feet from one end of the border to the other. Next, declare war on North Korea. NK troops will immediately defect to the food.
This is, in fact, the chief worry of SK. Once the border is open, they fear an invasion of starving peasants by the millions.
Correct. North Korea has no conception of what diplomacy is.
These people do not think like white Westerners.
Talking with them is useless.