VOLODYMYR Zelensky has insisted he will happily step down from office in exchange for Ukraine joining Nato.... Zelensky spoke to reporters at London Stansted airport after a day meeting European leaders and holding talks with Sir Keir Starmer over finding a long-term peace deal. He said that his country's freedom is "not for sale" and vowed not to quit despite pressure from the US after his White House bust-up. [He] did once again offer to step down as Ukraine's president if it meant his country would be invited into the Nato alliance.... "To change me it will not be easy....