President Volodymyr Zelensky of Ukraine pressed for security guarantees in a cordial meeting with President Trump and European leaders.

Ukraine and its European allies are seeking to persuade President Trump that a cease-fire is a prerequisite for peace talks with Russia.

US Secretary of State Marco Rubio, who was in the room during Trump and Zelenskyy’s talks with European leaders, has called the meeting “a big moment”, saying it marked the first time that there has ...