Sahel-based jihadists are extending their reach. Can a fractured region push back?

A mural showing soldiers in Ouagadougou, the capital of Burkina Faso. Photograph: AP

Among the thousands of refugees who have fled Mali since a jihadist uprising began more than a decade ago, one group is bound together by a grim commonality: their husbands are presumed dead or captured.

Amina (not her real name) is one of them.