European leaders met in London to form a plan to help end the war in Ukraine. But even potential peacekeepers face political and economic hurdles.

By Elizabeth Piper, Kate Holton and Andrew MacAskill LONDON (Reuters) -British Prime Minister Keir Starmer said on Sunday European leaders had agreed to draw up a Ukraine peace plan to take to the United States,

"We are all working together in Europe in order to find a basis for cooperation with America for a true peace and guaranteed security," Zelensky said after the summit. Meanwhile, French President Emmanuel Macron told Le Figaro newspaper that Paris and London wanted to propose a one-month truce between Russia and Ukraine "in the air,