Praise -- Title Page -- 1 - SEX AND VIOLENCE -- Competition -- Team Aggression -- Women -- Civilization at Its Best -- 2 - THE WAR OF NATURE -- Explaining Evolution -- Consilience -- 3 - THE MISSING LINK -- The Troop -- Team Aggression -- Outgroups -- Hunting -- Aggression Within the Group -- Honor and Chivalry -- Evolution and Choice -- 4 - WE BAND OF BROTHERS -- The Joy of War -- Camaraderie -- Killing -- The Reivers and the Hoplites -- Boot Camp -- Courage -- Surrogate Wars -- Revenge -- Child Soldiers -- The Importance of Population Size and Structure -- Animal Lessons -- A Universal Emotion -- 5 - TERRORISTS -- What Is a Terrorist? -- Terror Emerges -- Suicidal Killings -- Gangs -- Can There Be a "War on Terror"? -- Responding to Terror -- 6 - WOMEN AND WAR WITH MARTHA CAMPBELL -- The Battle Between the Sexes -- Women on the Firing Line -- Sex and War -- How Many Children? -- Stumbling Toward Solutions -- 7 - RAIDS INTO BATTLES -- Fossil Evidence -- Archaeological Evidence -- Anthropological Evidence -- Fighting Back -- An Unbroken Chain -- 8 - WAR AND THE STATE -- Agriculture and Industry -- Despots and Democracy -- Bluff and Blunders -- Conscription and Coercion -- Patriotism -- Slavery and Racism -- The Cost of War -- The Utility of War -- Holy Wars -- 9 - WAR AND TECHNOLOGY -- Slings, Swords, and Barbed Wire -- Symmetrical Wars -- War Without Limits -- Asymmetrical Wars -- Machines and Men -- War and Disease -- The Pain of War -- 10 - WAR AND THE LAW -- "Just" Wars -- Civilians and Combatants -- War Crimes -- Collateral Damage -- Reconciliation and Rebuilding -- Supranational Forces -- Ambivalence and Progress -- 11 - EVIL -- The Fall -- "Virtuous Citizens Acting in the Name of Righteous Causes" -- A World Ruled by Houyhnhnms and Yahoos -- "Who Is Willing to Destroy a Piece of His Own Heart?" -- 12 - THE FUTURE OF WAR -- Poison Gas.

Nuclear Weapons -- Germ Warfare -- Manufacturing Destruction -- The Battle for Resources -- Lessons -- 13 - WOMEN AND PEACE WITH MARTHA CAMPBELL -- Men Controlling Women -- The Fight for Reproductive Freedom -- The Central Question -- Family Planning, Violence, and National Security -- Church and State -- Women Waging Peace -- The Pill Is Mightier Than the Sword -- 14 - STONE AGE BEHAVIORS IN THE TWENTY-FIRST CENTURY -- 9/11 -- Afghanistan -- Iraq -- Israel and Lebanon -- Darfur -- Upstream Strategies -- The Haves and Have-Nots -- Sense of Scale -- "My God Was Bigger Than His" -- Connecting the Dots -- 15 - Civilization at Its Best -- "If You Want Peace" -- Slavery -- Women -- Reproductive Autonomy -- The Sword's Edge -- Unnatural Honesty -- To the Reader -- References -- Index -- About the Authors -- Copyright Page.