Church Council at Nice and United Nations

While reading about William the Bastard, I am came across an explanation of the  Church Council at Nice and how it attempted to manage the peace between kingdoms.  It occurred to me the  Church Council at Nice served as the United Nations serves today.   I hope someone with more knowledge than I have has something to say about this comparison.  

By the way, the history of William the Bastard makes the conflicts in Libya and other places much less dramatic, because such fights for power were so common in our own history.  Which for me makes the story of the Church Council at Nice and comparison to the United Nation, even more interesting! 

   Thank you,  Centrix Vigilis for the reply.   My original concern is that we be aware of peace keeping efforts other than the UN, because we argue about the cost and benefit of the UN as though what it does was never done before, giving us a false of superiority to those who went before us.  You take my thought a step further.   

What we have here is a question of authority, right?   What gave the church the authority that others were willing to submit to and what gives the United Nation's authority?  

I just noticed this thread comes up in Google search about the Church Council so I think we should provide more information about the Council for those who are not familiar with it.  

I want to introduce the Wikipedia explanation of the Church Council, by saying, "well, how Roman of you."  

The Greatness of Roman was bureaucratic and diplomatic.   To a large degree this was learned from the Persians.  Especially the example set by Cyrus's as he used the teachings of Zoroastrianism to bring many lands into the great kingdom of Persia.   The Romans followed the Persian example of empire building, and perhaps with the Greek influence, used the rule of the Law of Nature, to settle disputes between citizens of different city/states, each having their own set of laws.   This is not exactly a study of nature, but rather taking what is common in the laws of individual city/states  and making a legal decision.   Later, when Christianity becomes the official religion of Rome, the Roman Law of Nature is used to settle differences between the Christian communities, and finally, to determine which stories will go in the bible and which ones would not, what is Christian and what is not, who is Christian and who is not.   So, what is called Canon Law, is not a mystical knowledge of the will of God as some would have us believe, but actually comes through the human effort to be civilized and develop empires.  

http://en.wikipedia.org/wiki/Canon_law

This discussion took an unexpected turn.  Now I am wondering, should this be included in this discussion?

Decline of the Byzantine Empire - Wikipedia, the free encyclopedia

What gave the church the right was the enormous power they exercised over the religious beliefs system of the time that was, in the main ridgly adhered to and believed in and practiced under church control. That changes with the Reformation. and certainly by the age of enlightenment as I noted early. As for the UN of today; no one in their right mind believes they are effective, primarily because of their controlling basis structure, in most affairs hence their credibility suffers as a result. Why is another topic.