But the US would also like an agreement from Kim that he will agree to dismantle the DPRK's enrichment facilities and access for international experts to verify the dismantling of a rocket launch site and a nuclear testing site.

Of course, the process to make the Korean Peninsula nuclear-free could be a long drawn out process given that the US and the DPRK are yet to fully agree on what "complete denuclearization" means, which makes it difficult for them to agree on how to turn that vision into reality.

And while Washington has been seeking "complete, verifiable and irreversible" denuclearization before it lifts its sanctions on the DPRK, Pyongyang has insisted on a process carried out "stage-by-stage" in a "simultaneous way".

Despite all this, the peace process must never be allowed to stall or be reversed. Peace and stability on the Korean Peninsula is the common aspiration of all peace-loving people, and conforms to the interests of all the parties concerned, including China, which has played an indispensable role in maintaining the momentum of engagement between Pyongyang and Washington.

Kim and Trump are on the right track toward realizing the goal of a denuclearized peninsula. The end of the nearly 70-year hostility between the two countries, if realized with a peace deal, would in itself be no small feat, and it will definitely pave the way for more concrete actions taken by the two sides to rid the peninsula of the threat of nuclear war.

All the parties concerned are duty bound to make sure the good momentum continues.