White House row with Ukraine raises stakes for European summit in London

British Prime Minister Keir Starmer, who is hosting the leaders of more than a dozen countries and other officials, said he is determined to find an end to Russia’s war on Ukraine.

It was supposed to cap a week of whirlwind diplomacy advancing the prospect of peace in Ukraine.

But a summit of European leaders on Sunday has been overshadowed by the extraordinary scolding by U.S. President Donald Trump of Ukrainian President Volodymyr Zelenskyy at the White House on Friday (February 28, 2025) for being ungrateful for U.S. support. The London meeting has now taken on greater importance in defending the war-torn ally and shoring up the continent's defenses.

“There's a real problem for European leaders to pick up the pieces and try and move forward,” Peter Ricketts, the former British national security adviser, told BBC radio on Saturday. "It’s going to be a damage limitation exercise. It’s going to have to be an exercise in where do we go from here?”

The meeting at Lancaster House, a 200-year-old elegant mansion near Buckingham Palace, follows a charm offensive last week to engage with Trump at the White House to put Ukraine at the center of negotiations and tilt his allegiances toward Europe.

British Prime Minister Keir Starmer, who is hosting the leaders of more than a dozen countries and other officials, said he is determined to find an end to Russia's war on Ukraine.

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“We have an opportunity to come together to ensure a just and lasting peace in Ukraine that secures their sovereignty and security,” Mr. Starmer said in advance. “Now is the time for us to unite in order to guarantee the best outcome for Ukraine, protect European security, and secure our collective future.”