Peace is because everybody agrees that war is despicable, borders shouldn't move, prosperity is achieved through technology not conquest. 150 years ago the Bri

Peace is because everybody agrees that war is despicable, borders shouldn't move, prosperity is achieved through technology not conquest. 150 years ago the British was the dominant military power. That didn't stop European countries from starting an avg. of 2 wars per year. US military dominance is not without positive effect, but the main driver of change is public opinion.