Once marginalized in the world economy, Africa today is a major global supplier of crucial raw materials like oil, uranium and coltan. China's part in this story has loomed particularly large in recent years, and the American military footprint on the continent has also expanded. But a new scramble for resources, markets and territory is now taking place in Africa involving not just state, but non state-actors, including Islamic fundamentalist and other rebel groups.

The second edition of PAdraig Carmody's popular book explores the dynamics of the new scramble for African resources,...