On Sunday, I returned home from another Berkeley Mission trip, where I intentionally exposed high school students to some of my atheist friends in the Bay Area. For the last six months, we’ve taught apologetics to these high schoolers from Upland Christian Academy. Now it was time for them to “get off the sidelines and into the game” and engage non-Christians with the truth. Of course, my atheist friends are more than happy to oblige, so they meet with our missions teams, challenge them with a short lecture, and then dive into some rigorous dialogue.

Without fail, a couple of our atheist guests will contend, “Religion is the cause of most wars.” This cultural mantra has been uttered so often and with so much force, it has come to be accepted as an undeniable declaration. Prominent atheists like Sam Harris contribute to the chorus of voices, arguing religion is “the most prolific source of violence in our history” (The End of Faith page 27). Richard Dawkins claims, “There’s no doubt that throughout history religious faith has been a major motivator for war and for destruction.”

But as we trained students for this trip, we equipped them with a simple question to expose such claims: “How did you come to that conclusion?” (also known as Columbo Question #2). We simply taught students to recognize when someone makes a claim and then to request their supporting reasons. When our atheist presenters were challenged to provide justification, they could only offer up the Crusades, the Inquisition, 9-11, or vague references to Islamic terrorism. Certainly we recognize religion’s role in these examples, but three or four references cannot support the claim that most wars are caused by religion.

Not only were students able to demonstrate the paucity of evidence for this claim, but we helped them discover that the facts of history show the opposite: religion is the cause of a very small minority of wars. Phillips and Axelrod’s three-volume Encyclopedia of Wars lays out the simple facts. In 5 millennia worth of wars—1,763 total—only 123 (or about 7%) were religious in nature (according to author Vox Day in the book The Irrational Atheist). If you remove the 66 wars waged in the name of Islam, it cuts the number down to a little more than 3%. A second scholarly source, The Encyclopedia of War edited by Gordon Martel, confirms this data, concluding that only 6% of the wars listed in its pages can be labelled religious wars. Thirdly, William Cavanaugh’s book, The Myth of Religious Violence, exposes the “wars of religion” claim. And finally, a recent report (2014) from the Institute for Economics and Peace further debunks this myth.

We didn’t stop there. We showed students it gets worse for the atheists’ claim. A strong case can be made that atheism, not religion, and certainly not Christianity, is responsible for a far greater degree of bloodshed. Indeed, R.J. Rummel’s work in Lethal Politics and Death by Government has the secular body count at more than 100 million...in the 20th century alone.

Our students were able to see that a simple examination of the facts relieves religion from blame for most of the world’s wars. In addition, we were able to help cultivate in students a healthy skepticism of atheistic claims. If the skeptic will shout such an unsubstantiated claim so loudly and with so much force, what other skeptical claims might quickly fall apart under rational scrutiny?