Mali, Burkina Faso and Niger have formed the Confederation of Sahel States (AES) to reject Western pressures and establish a defense pact, signaling a shift in West Africa’s geopolitical land… ...

A new report describes the Sahel region of Africa, a million mile band that runs through Mauritania to Sudan, as "the epicenter of global terrorism." We examine those findings.

A map released Tuesday in the journal Nature offers the first comprehensive map of the world’s underground water ...