Islamist attacks threaten to spread south from the Sahel (Mali, Burkina Faso, and Niger) to the hitherto largely untouched wealthy coastal countries of Côte d’Ivoire, Ghana, Togo, and Benin. Nigeria already has its several internal civil conflicts as well as the long-running major battle with Boko Haram, which spills over into northern Cameroon, southern Niger, and Chad.