The northern region’s surrounded forces are ignoring Prime Minister Abiy Ahmed’s deadline to disarm. More regions are being drawn in—and a conflagration across the Horn of Africa looms. Artificial-intelligence pilots have shown serious dogfighting skills, but for reasons both technical and ethical humans are still needed in the cockpit. And the rise of mixed martial arts on both sides of the Atlantic.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer Hosted on Acast. See acast.com/privacy for more information.

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