The empire strikes back. Last week, Ukrainian spies destroyed a large chunk of Russia's fearsome nuclear bomber fleet using small, smuggled drones. On Friday, Russia retaliated with some of the largest air raids against Ukraine to date.

The number of Russian troops killed or wounded in Ukraine has topped 1 million, military officials in Kyiv said Thursday, describing the huge price that Moscow has paid for its 3-year-old invasion.

After Ukraine’s drone strikes on Russian air bases, the two sides talked for about an hour in Istanbul, and a halt to the fighting seems out of reach for now.