> Bigger wars become more and more of a losing proposition You've missed the point. Yes, a war is generally a losing proposition nowadays. But a credible thr

> Bigger wars become more and more of a losing proposition You've missed the point. Yes, a war is generally a losing proposition nowadays. But a credible threat of war often is not. Even more to the point, wars were often winning propositions in our ancestral environment, and so we are more likely to be descended from people who were willing to wage them in the past. That is a very difficult legacy to overcome.