U.K. Prime Minister Keir Starmer says he's willing to send peacekeeping troops to Ukraine to maintain peace when the war with Russia ends.

A “security guarantee” from the United States is the only way to achieve lasting peace between Ukraine and Russia – and to stop the Kremlin from further aggression, British Prime Minister Keir Starmer said Monday.

British Prime Minister Keir Starmer said on Monday that there must be a U.S. security commitment for European countries to send postwar peacekeeping forces to Ukraine and it was too early to say how many British troops he would be willing to deploy.