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.

At the end of the Cold War, President George H.W. Bush managed the fall of the Soviet Union and its satellite states in Eastern Europe — sometimes overruling regional leaders in the wider interests of the West and their own security. There’s no sign that Trump feels any such affinity for Europe or its future.