Bloodshed kept pace with iron production: in essence, the entire paleotechnic period was ruled, from beginning to end, by the policy of blood and iron. The brutal contempt for life was equalled only by the the almost priestly ritual it developed for inflicting death. Its "peace" was indeed the peace that passeth understanding: what was it but latent warfare.

Ch. 4, sct. 5 - Technics and Civilization (1934)