British Prime Minister Keir Starmer concluded a "landmark 100-year" security and economic partnership with Ukrainian President Volodymyr Zelensky on his first visit to the country since becoming U.K.

British Prime Minister Keir Starmer arrived in Ukraine's capital on Thursday with a pledge to help guarantee the country’s security for a century, days before Donald Trump is sworn in as U.S. president.

Struck by the “grim reminder” of war while visiting a burns hospital unit in Kyiv earlier today, the prime minister promised the UK would “play its full part” in guaranteeing Ukraine’s security. The Sheffield-made guns will be delivered to Ukraine’s military over the next few weeks as part of this deal, Sir Keir said.