Volodymyr Zelenskyy on Sunday predicted Russia would “wage war against Nato” if the US stepped back from its support of Ukraine – and that he had seen intelligence suggesting that the Russian dictator, Vladimir Putin, was building up troops for a possible military invasion of another European country. The Ukrainian president made the claim on the NBC show Meet the Press in a wide-ranging interview ahead of an emergency summit of European leaders in Paris to discuss Russia’s war on Ukraine – and peace talks between US and Russian officials in Saudi Arabia. “It can happen in summer, maybe in...