Zamfara State in northern Nigeria is suffering from a long-term conflict between mostly Muslim Fulani nomadic herders and mostly Christian Hausa farmers. Zamfara has a population of about ten million, of which about 20% are Fulani and other tribal herders. Disputes between herders and farmers have been accelerated by increasing populations, the ability of herders to breed and treat cattle for “tsetse fly” related diseases, and poor and disputed land titles.While numbers are difficult to validate, hundreds, possibly thousands, have been killed and hundreds of thousands have been displaced from their lands and homes. Armed camps in forested areas, kidnapping,...