Russia and Ukraine have completed the first phase of what is expected to be the biggest prisoner exchange since the start of the war, with almost 800 people released on Friday.

Trump’s lead envoy to Ukraine and Russia, Steve Witkoff, has had similar moments of confusion. In an interview in March, he could not name the regions over which the war is being fought. “These so-called four regions,” he said, struggling to recall them. “Donbas, Crimea... You know the names.”