The hastily called gathering was part of a flurry of diplomacy expected to center on Ukraine this week as Trump officials prepare to start talks with Russia on their own.

Here is what some have said ahead of the meeting on the issue of sending peacekeeping troops into Ukraine. British Prime Minister Keir Starmer has said he is ready to send British troops to Ukraine as part of any postwar peacekeeping force.

Populist leaders in Bulgaria and Slovakia dismissed the option of sending peacekeeping troops to Ukraine as the European Union struggles to find its place in peace talks.