“The terrorists are quick,” German Chancellor Angela Merkel told reporters after a summit with the leaders of Mauritania, Mali, Niger, Chad and Burkina Faso in Ouagadougou in May. “This is why we have to be quicker, so that we can beat them.” What happens in the Sahel, the vast sub-Saharan …

A violent insurgency in Mozambique’s northernmost province of Cabo Delgado is sparking fears that the area could become the next frontier for global jihadism in Africa. In recent years, young men, sometimes carrying the black flag of the Islamic State, have swept hundreds of thousands of people off their land …

In early June, jihadist militants in Burkina Faso raided homes and the local market in Solhan, a village close to the border with Niger. By sunrise, they had killed at least 160 civilians in what local officials said was the country’s worst terrorist attack in years. Though particularly shocking for …