Attacks by Islamist militants, military operations, and waves of inter-communal violence have left hundreds dead and tens of thousands displaced since January in Burkina Faso, triggering an "unprecedented" humanitarian crisis that has caught many by surprise. Homegrown militant groups, as well as extremists linked to al-Qaeda and ISIS, have been operating in the country's north since 2016, but have expanded to new fronts. As the state struggles to contain the insurgencies, a growing number of "self-defense" militias have mobilized, escalating ethnic tensions in a country once considered a beacon of coexistence and tolerance in West Africa. (Photo: The New Humanitarian)