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.

Sir Keir Starmer has met President Volodymyr Zelenskyy in Kyiv, where he laid flowers at a vast memorial for soldiers. The "Memory Wall of Fallen Soldiers" features photographs of thousands of military personnel who have died in service,

UK Prime Minister Keir Starmer arrives in Ukraine for security talks with Zelenskyy days before Trump takes office

The British government said Starmer and Ukrainian President Volodymyr Zelenskyy will sign a “100-Year Partnership” treaty in Kyiv covering areas including defense, science, energy and trade. Starmer’s unannounced visit is his first trip to Ukraine since he took office in July.