As President [Donald] Trump wrestles to deliver on his campaign promise to end the war on Ukraine by helping to bring about a negotiated peace deal, the effort has, in part, been undermined by an escalating exchange of kamikaze drones by both sides. The last week...

On May 16, Russia and Ukraine held their first direct talks since the first months of the former's invasion. Despite the pessimistic evaluation by Ukrainian and European leaders, the return to diplomacy is itself a major achievement and step forward. The talks lasted...