North Korea has been extremely unreliable with negotiations. They can always find an excuse to do what they want, any agreement to the contrary. They depend on China to back them up.
Why should we assume they will act in good faith in the future.
After the way Clinton acted in former Yugoslavia, why would other nations trust our agreements?
There’s a new Sheriff in town.
NK is under no obligation to “keep their word”. People who negotiate with them are wasting their time. Every year, NK gets less and less able to perform offensive action against SK. They are basically reduced to saber rattling.
All they really do is annoy China by making China’s adversaries ramp up their military. The real question is Russia. What’s their take on all this.