Something Mumford draws attention to is the way organized war is the result of the city rather than something inherent to humanity itself. He notes that as people were drawn in to the promises of cooperation and safety, they gave their protection over to a skilled and powerful leader. This leader was often seen as both spiritual and political leader, with the divine power capable of keeping the community safe from all threats.

I found it particularly interesting the way he roots the origins of this war in the role of human sacrifice. The leader, who had taken the responsibility for the safety and wellbeing of the community, had to have ways to appease the forces of nature they were at the mercy of. Human sacrifice was one way they would do this.

“Beneath all war’s technical improvements lay an irrational belief, still deeply embedded in the collective consciousness: only by wholesale human sacrifice can the community be saved.” (Mumford, 45)

What may have began as small raids to seek out victims, grew to become sizeable numbers in some areas, perhaps representative of the growing collective anxiety the city produced. Mumford's point was that over time, the power of the king became the point: the power to control, subdue, or destroy. Organized war was their invention, used to eliminate threats to their power—real or imagined.