The announcement comes following Ukrainian President Volodymyr Zelensky's Oval Office clash with U.S. President Donald Trump.
Ukrainian President Volodymyr Zelenskyy arrived in London ahead of a summit with other European leaders organized by British Prime Minister Keir Starmer.
Britain, France and Ukraine have agreed to work on a ceasefire plan to present to the U.S., British Prime Minister Keir Starmer said Sunday as he prepared to host a summit of European leaders.