China can be a guarantor to North Korea that if they give up their nuclear capacity, the United States will not be in a position to harm them. And for the United States, China can also be a guarantor that if there is an agreement, that the agreement is effectively implemented by the North Koreans.

One of the most frustrating things is to see a country in which you had elections, the elections were a success, but then you have to say to people nothing can be improved in the next few months, even in the next few years, in infrastructure, in water, in sanitation, in health, in education, in jobs.

The 'responsibility to protect' is a very important concept.

Antonio Guterres Quotes