Pyongyang Protocol for Global Nuclear Demilitarization Kim Jong Un has finally took the world to its first denuclearization. We should seize this opportunity to go all the way to global nuclear weapon rollback, or simply "nuke rollback". In so doing, the following considerations can serve as a logical basis for a viable program of nuke rollback: 1. Humanity has proven its own savagery by dropping nuke bombs on live humans. The world simply cannot afford to live with this hazard. 2. It's only a matter of time that all the countries in the world will have nuke weapons for basically they all have the ability to have them. 3. But for a long time to come we still need to observe the concept of balance of horror. 4. So nuke rollback must proceed according to a first-come- last-go schedule to give due credits and time needed to the pioneers of nuke weapons for them to be mentally prepared to give up their "deserved" advantages. The recent North Korea's change in attitude toward nuclear weapon program is an opportunity for the world to roll back the nuclear arms race. Since North Korea is now in a tactically desirable position to phase out its nuclear weapon's program, this could serve as the start of the rollback. Also, as the one country that could influence North Korea to do this is America. President Trump should visit North Korea and jointly declare with Kim Jong Un a Pyongyang Protocol for Global Nuclear Demilitarization. Just as North Korea could roll back its nuclear bomb program in 10 years, back to its zero level in 2008 when it first obtained its first bomb, America might also find it comfortable and welcoming to do the equivalent rollback in 73 years and by 2081 to the zero level as in 1945. This same formula should be applied to all the nuclear powers in the world.