Each time we have a crisis there is a surge of comment as everyone seeks to gain knowledge and insight. New experts appear, hitherto unknown experts get publicity and credit after years of study.

That caveat aside I was amazed to read this FP article, which opens with:
In 1893, in West Africa's upper Niger River basin -- what is now central Mali -- the French army achieved a victory that had eluded it for almost 50 years: the destruction of the jihadist Tukulor Empire, one of the last great challenges to France's rule in the region. The Tukulor Empire's first important conquest had come decades earlier, in the early 1850s, when its fanatical founder, El Hajj Umar Tall, led Koranic students and hardened soldiers to topple the Bambara kingdoms along the banks of the Niger. Umar imposed a strict brand of Islamic law, reportedly enslaving or killing tens of thousands of non-believers over a half century.....Now, the jihadists are back and so are the French -- the two sides slugging it out over the same real estate they fought over 120 years ago.
Link:http://www.foreignpolicy.com/article...ntry?page=full

The author Peter Chilson has a new e-book ' We Never Knew Exactly Where: Dispatches from the Lost Country of Mali'.