Below are posts I’ve written for this blog on war, peace and related topics, updated from a meta-post published in 2016. Please let me know about missing stories, broken links or other problems. See also my book The End of War. –John Horgan


War Is Our Most Urgent Problem. Let’s Solve It

Dear Rep. Ocasio-Cortez, Please Work to End War

Dear "Skeptics," Bash Homeopathy and Bigfoot Less, Mammograms and War More

Shouldn't Americans Care That Their Country Is Killing as Well as Imprisoning Kids?

Where Is Outcry Over Children Killed by U.S.-led Forces?

Dear Trump, Make World Peace Your Mission

How the U.S. Can Help Humanity Achieve World Peace.

Lets Begin Talking About How to End Wars.

Would Global Violence Decline Faster if U.S. Was Less Militaristic?

Are Predictions of Endless War Self-fulfilling?

What War Propaganda Like American Sniper Reveals about Us

Steven Pinker, John Gray and the End of War

Can Science Solve Terrorism?

Prominent Economist Touts Benefits of War in The New York Times–Really

50 Years Later, JFK “Peace Speech” Still Inspires–and Has Been Scientifically Validated!

We Need Leaders Who Share John F. Kennedy’s Vision of World Peace

Pope Francis, Jimmy Carter and the Greatest Threat to Peace


Dear Anti-Trump Protestors, Please Renounce Violence

How to Resist an Unjust Regime Nonviolently

We Need a New Just-War Theory, Which Aims to End War Forever.

Is the “Just War “ Concept an Oxymoron, or Can It Be Salvaged?

How Can We Condemn Boston Murders But Excuse U.S. Bombing of Civilians?

Did the U.S. Overreact to the 9/11 Attacks?

Barack Obama Should Call for End of All War, Not Just War on Terror

U.S. Lacks Moral Authority to Criticize Russia for Intervening in Ukraine

How George W. Bush Rejected my “Sharp” Idea for Countering Terrorism

Egypt's Revolution Vindicates Gene Sharp's Theory of Nonviolent Activism

How Should the U.S. Respond to Terror?

We Need Smarter Solutions to Damned-if-You-Do-or-Don’t Dilemmas Like Syria

Selma’s Timely--and Empirically Sound—Message on Nonviolence

U.S. Bombs, Which Helped Spawn ISIS, Can’t Crush It

Why Gaddafi’s Death Doesn’t Fill Me with Joy

Obama’s choice for warrior-in-chief, Gen. James Mattis, calls Iraq invasion “the dumbest thing we ever did.”

Can Pretend Warfare Cathartically Curb Real War?

A Modest Proposal for Curbing Homicides: Socialism


Orlando Massacre Exposes Need for More Gun Control, Not More Counterterrorism

California Shootings Expose Need for More Gun Control, Not Counterterrorism

How Many Massacres Will It Take for Gutless Politicians to Stand Up to Gun Nuts?

Lax Gun Controls Pose Greater Threat Than Terrorism

More Guns Have Not Produced More Killings, But We Still Need Gun Control

Question for Gun-Rights Fanatics: Have You No Sense of Decency?


Japanese Study Deals Another Blow to Deep-Roots Theory of War

War Scholar Critiques New Study of Roots of Violence

Was Civilization the Cure for Primordial Human Violence?

Has a Bogus Theory of War Kept Obama from Being a Peace President?

New Study of Foragers Undermines Claim That War Has Deep Evolutionary Roots

New Study of Prehistoric Skeletons Undermines Claim that War Has Deep Evolutionary Roots

Survey of Earliest Human Settlements Undermines Claim That War Has Deep Evolutionary Roots

I am Innately Aggressive, Not Innately Warlike

10,000-Year-Old Massacre Does Not Bolster Claim That War Is Innate

The Warrior Gene Makes Me Mad (Whether or Not I Have It)

The Weird Irony at the Heart of the Napoleon Chagnon Affair

Is “Sociobiologist” Napoleon Chagnon Really a Disciple of Margaret Mead?

Margaret Mead’s War Theory Kicks Butt of Neo-Darwinian and Malthusian Models

RIP Military Historian John Keegan, Who Saw War As Product of Culture Rather than Biology

Are War Crimes Caused by Bad Apples or Bad Barrels?

Why Soldiers Get a Kick out of Killing

Thanksgiving and the Slanderous Myth of the Savage Savage

Jared Diamond, Please Stop Propagating the Myth of the Savage Savage!

Sebastian Junger’s Documentary Restrepo Deserves an Oscar, but his Theory of War Is Wrong

Sebastian Junger’s New Film The Last Patrol Glorifies War

To End War, Focus on Culture Rather Than “Root Causes

Seeking Causes Proximate and Ultimate of the March 11 Afghan Massacre

Worst Column Ever by Times Pundit David Brooks: “When the Good Do Bad


Are We Doomed to Wage Wars Over Water?

Hawkish U.S. Policies Pose Greater Threat to Peace Than Climate Change

Military May Play Key Role in Responding to Climate Change


Quitting the hominid fight club: The evidence is flimsy for innate chimpanzee–let alone human–warfare

New Report on Chimp Violence Fails to Support Deep-Roots Theory of War

Anthropologist Finds Flaw in Claim that Chimp Raids Are Adaptive

Chimp-Violence Researchers Respond to Criticism

What Thieving Seals Can Tell Us about War’s Roots


Nobel Prize for Efforts to Ban Nukes Should Inspire Efforts to End all War

Nuclear Expert Considers Risks of Conflict with North Korea

Is Nuclear War the Only Cure for Inequality?

Are We Too Afraid of Nuclear Weapons?

Historian Contemplates “Ugly” Reality of Hiroshima

Bethe, Teller, Trinity and the End of Earth

Risks of Nuclear Weapons: An Exchange

Obama’s Nuclear Policy Takes One Step Forward and Two Steps Back

We Must Start Thinking Again about the Unthinkable


Are Cyborg Warriors a Good Idea?

Will Neuroweapons, Micro-Drones and Other Killer Apps Really Make Us Safer?

How Google Could Help End War

Antiwar Movement Spreads Among Tech Workers

Why You Should Care about Pentagon Funding of Obama's Brain Initiative.

Should Scientists and Engineers Resist Taking Military Money?

Programs for Troubled Vets Don't Work, So How About Ending War?

Silicon Valley and “Disruptive” War Research

Beware the Military-Psychological Complex

Neil deGrasse Tyson, Please Speak Out about Militarization of Science!

My Exchange with Neil deGrasse Tyson about Science and War


Are Drone Strikes Really Making Us Safer?

Why drones should make you afraid. Very afraid

Drone assassinations hurt the U.S. more than they help us

Don't Believe Scare Stories about Cyber War

What Ancient Greeks Can Teach Us about Drones and Cyber War

Grass Roots Spying Might Make World Peace Possible

New Book Cuts Through Fog of Hype Cloaking Cyber War

Are We Ready for a World in Which Everyone Spies on Everyone Else?

Will “Persistent Surveillance” Turn U.S. into a Panopticon?

U.S. Never Really Ended Creepy “Total Information Awareness” Program