How can we measure people's progress towards developing everlasting peace on this earth?

The UN has asked many people of nations at war what are the prevailing attitudes, values and behavior of a nation at war.  The UN committee summarized the responses with 8 categories prevalent in nations at war.  See the reading list article: "Values, Attitudes, and Behaviors: A Culture of War to a Culture of Peace."  In this article each category in a culture of war has a corresponding category for a culture of peace.  On January 19 the Alaskan participants in the discussion covered each category along with the wisdom of  leaders, like Martin Luther King, in an effort to understand what transformations are necessary for humanity to develop a culture of peace.  For as we work for change and peace we would like to measure our progress.  After reviewing the reading list, enter your comments for this blog item.  How can we measure progress towards developing a culture of peace?