"War! What is it Good For? Conflict and the Progress of Civilization from Primates to Robots" was published by Farrar, Straus & Giroux in the US and Profile Books in Britain in April 2014. In it he argues that we now have enough evidence to trace the history of violence across many thousands of years, and when we do so, we discover a startling fact. For all its horrors, over the last 10,000 years war has made the world safer and richer, because it is virtually the only way people have found to create large, internally pacified societies that then drive down the rate of violent death. The lesson of the last ten millennia of military history, he argues, is that the way to end war is by learning to manage it, not by trying to wish it out of existence. The German translation of the book, "Krieg: Wozu er gut ist," was published by Campus Verlag in October 2013. Five more translations are being prepared.