The purpose of this thesis is to provide a proposal which I think is very correct to keep peace in the future of the world. We are all not sure what is going to happen in the future, but what we know at least is what is most likely going to happen and what work we can do that if we do it we can avoid disaster. Based upon this logic, I find World Government is the most likely candidate which can save human life and keep the peace as I have discussed in the whole paper.