1. First America stops being world police.
2. America plays ball with rest of world (adopts metric system, becomes a leader in climate, shares control of internet, turns concern toward to real issues like asteroids, population growth, health issues, cyber security)
3. Citizens acknowledge that war is a tool for siphoning tax money into the coffers of people with connections/government-contracts, and move towards a post-war-era.
4. Citizens start to move to a post-nation era, where we acknowledge have more in common with each other than our own politicians who drive us apart for financial gain.
5. We move toward universalizing language, so we hit a point that declaring war with Iraq seems as absurd as declaring war with Canada.
6. The very concept of "superiority" and "class" becomes meaningless as we move into an era of excess due to automation.
[Link to Pentagon's study: https://ssi.armywarcollege.edu/pubs/download.cfm?q=1358]