Paris, Feb. 18 -- UK Prime Minister Sir Keir Starmer has urged the United States to provide a security backstop for any future Ukraine peace deal, warning that without American involvement, Russia could launch further aggression. His remarks came after a high-level European leadership summit in Paris, where stark divisions emerged over potential military commitments and the Trump administration's unilateral approach to peace talks. Addressing the press following protracted discussions with European counterparts, Starmer reiterated that while Europe must bolster its own defensive capabilities, a robust US security umbrella remains non-negotiable. Starmer is set to meet US President Donald Trump in Washington next week to discuss the key ele...