British Prime Mininister Keir Starmer embraced Ukrainian President Volodymyr Zelenskyy on his arrival to 10 Downing St. and said the U.K. stands with Ukraine.World, Donald Trump, Keir Starmer, Ukraine, Volodymyr Zelenskyy British Prime Mininister Keir Starmer embraced Ukrainian President Volodymyr Zelenskyy on his arrival to 10 Downing St. and said the U.K. stands with Ukraine.