Britain's Prime Minister Keir Starmer, front center, hosts the European leaders' summit to discuss Ukraine, at Lancaster House, London, Sunday March 2, 2025. Front row from left, Finland's President Alexander Stubb, France's President Emmanuel Macron, Britain's Prime Minister Keir Starmer, Ukraine's President Volodymyr Zelenskyy and Poland's Prime Minister Donald Tusk. Center row from left, Spain's Prime Minister Pedro Sanchez, Denmark's Prime Minister Mette Frederiksen, European Commission President Ursula von der Leyen, European Council President Antonio Costa, Canada's Prime Minister Justin Trudeau, and Romania's Interim President Ilie Bolojan. Back row from left, NATO secretary General Mark Rutte, Netherlands' Prime Minister Dick Schoof, Sweden's Prime Minister Ulf Kristersson, Germany's Chancellor Olaf Scholz, Norway's Prime Minister Jonas Gahr Store, Czech Republic's Prime Minister Petr Fiala, Italy's Prime Minister Giorgia Meloni and Turkey's Minister of Foreign Affairs Hakan Fidan. (Justin Tallis/Pool via AP)