Osama bin Laden called Muhammad "a Prophet of Conquest." Pakistan's Universal Sunnah Foundation brags that under Muhammad's battlefield leadership, "Islam spread an average of 317 square miles per day."

Right now ISIS, al Qaeda, Boko Haram, and the Supreme Leader of Iran know that Islam toppled two of the biggest superpowers in history--Rome and Persia--then took over two-thirds of the inhabited world. Militant Muslims believe that Islam is on the brink of doing it again. The Muhammad Code: How a Desert Prophet Brought You ISIS, al Qaeda, and Boko Haram lays bare the origins of this profoundly dangerous belief.

Many contemporary thinkers excuse Islamic violence as a legitimate reaction to Western imperialism. They blame America's wars in Iraq and Afghanistan and the establishment of Israel in 1948. But Jihad was invented in 624 AD by the only prophet ever to call himself "The Prophet of War." And that prophet was not responding to "legitimate grievances," but an ambition for world conquest.