There are four parts to the case I will make. The first is that by fighting wars, people have created larger, more organized societies that have reduced the risk that their members will die violently. This observation rests on one of the major findings of archaeologists and anthropologists over the last century: that Stone Age societies were typically tiny. Chiefly because of the challenges of finding food, people lived in bands of a few dozen, villages of a few hundred, or (very occasionally) towns of a few thousand members. These communities did not need much in the way of internal organization and tended to live on terms of suspicion or even hostility with outsiders. *SNIP* My second claim is that while war is the worst imaginable way to create larger, more peaceful societies, it is pretty much the only way humans have found. “Lord knows, there’s got to be a better way,” Edwin Starr sang, but apparently there isn’t. If the Roman Empire could have been created without killing millions of Gauls and Greeks, if the United States could have been built without killing millions of Native Americans—in these cases and countless others, if conflicts could have been resolved by discussion instead of force, humanity could have had the benefits of larger societies without paying such a high cost. But that did not happen. It is a depressing thought, but the evidence again seems clear. People hardly ever give up their freedom, including their rights to kill and impoverish each other, unless forced to do so, and virtually the only force strong enough to bring this about has been defeat in war or fear that such a defeat is imminent.
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