The Niger Republic has withdrawn an international force fighting armed Islamist groups in West Africa’s Lake Chad region as ...

KOULKIMÉ, Chad — Alhadji Yaro was a teenager when Boko Haram militants stormed onto his island in the vast, blue-green waters of Lake Chad and made villagers an offer at gunpoint.

This is the reality for many people living in Africa’s Lake Chad region. This is not a crisis about a lake. It is a sprawling disaster that covers four countries in West Africa. Over 4.5 million ...