Ukraine and European leaders agreed on Saturday to an unconditional 30-day ceasefire starting Monday with the backing of President Donald Trump, threatening President Vladimir Putin with new "massive" sanctions if he failed to comply.

European leaders from Britain, France, Germany and Poland joined Ukrainian President Volodymyr Zelensky in Kyiv in urging Russian President Vladimir Putin to accept a 30-day ceasefire or face more sanctions.

F OUR EUROPEAN leaders joined Volodymyr Zelensky in Kyiv on May 10th to issue a peace ultimatum to Vladimir Putin: accept a comprehensive 30-day Ukrainian ceasefire starting on Monday or face fresh sanctions.