Our correspondent joins the French air force on a mission in the Baltics, seeing increasing support for NATO just as the country draws down in Africa. Drones have by now become a standard feature of warfare, but in Gaza the demands are different—and Israel has much expertise to draw upon (09:36). And artificial intelligence predicts the structures of 2m brand-new materials (16:38).Sign up for a free trial of Economist Podcasts+. If you’re already a subscriber to The Economist, you’ll have full access to all our shows as part of your subscription. For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account. Hosted on Acast. See acast.com/privacy for more information.