In 1891, the French drew the borders of what became Mali. Like many colonial borders, they were arbitrary, absurd to the many nomads who supposedly lived within them.

Now climate change is ravaging the Sahel region, and many of those nomads are being forced to settle down. And Russia and China have arrived to replace the long tail of French colonial domination. As has Al-Qaeda.

So what does this all have to do with the far-right anti-imperialism of Steve Bannon?

James Pogue is a journalist with an extraordinary range. He has reported from Mauritania and the Central African Republic, from the private gatherings of JD Vance and the militias of Oregon.

In this episode, he tells Richard Hames about how violence, money, racism weave together at the end of an empire – and perhaps the beginning of another.