KIEV In this handout photograph taken and released by the Ukrainian Presidential Press Service on May 9, 2025, Ukraine's President Volodymyr Zelensky attends the annual Joint Expeditionary Force (JEF) Leaders' Summit, taking place in Oslo, via video link from his office in Kiev, amid the Russian invasion of Ukraine. French President Emmanuel Macron, British Prime Minister Keir Starmer and German Chancellor Friedrich Merz arrived in Kiev early Saturday on a visit showing solidarity with Ukraine ,