ISIS and the Yazidis: How American Action Stopped a Genocide in Iraq

In 2014 the jihadists of the Islamic State of Iraq and Syria (ISIS) were consolidating their control over a vast area of the Middle East. They singled out the Yazidis, adherents of an ancient monotheistic religion, for annihilation. Unlike Christians or Jews, who were seen as "people of the book," Yazidis were classified as pagans and therefore subject to extermination. The men were to be executed and the women and children enslaved. In August ISIS fighters attacked Sinjar, an Iraqi city in...