UKRAINE’S President, Volodymyr Zelensky, has warned ‘we must prepare’ for a Russian nuclear attack, and has urged the world to stock up on anti-radiation medicine and build air raid shelters. Russia is willing to use nuclear weapons to bring a catastrophic end to its invasion of Ukraine, Zelensky warned last night. In his address, Zelensky said last night: “We shouldn’t wait for the moment when Russia decides to use nuclear weapons… We must prepare for that.” “Anti-radiation medicine and air raid shelters would be needed,” he said, adding that the Russians “can use any weapon, I’m convinced of it”. The Ukrainian president made a similar announcement on Friday, when he said it could not be ruled out that desperate Russian dictator Vladimir Putin would use tactical nukes. Follow our Russia-Ukraine live blog below for up-to-the-minute updates…