During the conversation, Putin told Trump that Russia will have to respond to the Ukrainian drone attacks, the U.S. president said. "It was a good conversation, but not a conversation that will lead to immediate Peace," he said in a Truth Social Post.

Russian President Vladimir Putin told President Donald Trump in a phone call Wednesday that he was obligated to respond to Ukraine’s weekend drone attack, Trump said, setting up a potential escalation in the conflict just as the US president hopes to broker an end to the war.

A stunning attack in Russia highlights how small drones can be outfitted with new software and components to turn them into killing machines.