Even as Nigeria struggles to fight against Boko Haram insurgents in its northeast, a dangerous but forgotten conflict on the other side of the country is resurfacing. Before the rise of Boko Haram, the conflict in the southern Niger Delta region had long been considered the most potent threat to Nigeria’s security. Over the years, it has displaced thousands and cost the government a hundred billion dollars in lost oil revenue. Violence in the south has been at a low ebb since 2009, when Nigeria’s former President Goodluck Jonathan bought off rebel leaders with a generous package of stipends. But those amnesty payments are set to expire in December, and new President Muhammadu Buhari will have a harder time dealing with the region than his predecessor: unlike Jonathan, Buhari does not come from the Delta, and global declines in oil prices mean that he has far less cash […]