Britain has been at the forefront of western countries offering military support for Ukraine since Russia’s full-scale invasion began in February 2022, but the question of whether the UK would put troops on the ground to help guarantee any peace deal will be a big test for Starmer.

British Prime Minister Keir Starmer said the drone threat was "a reminder of what Ukraine is facing every day."

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.