CNN
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It was a weekend for the history books. What began with US President Donald Trump furiously berating Ukrainian President Volodymyr Zelensky in the White House ended with a show of European unity in London and vows to wrestle negotiations over the Russia-Ukraine war away from the US.
Here are five key takeaways from a public bust-up that has profound implications for Washington’s relationship with some of its strongest allies:
Zelensky-Trump fallout
The unprecedented scenes that unfolded in the Oval Office on Friday appalled Western allies, but came after weeks of fundamental changes in transatlantic relations led by a new White House administration pushing an “America First” agenda.
Those changes first became apparent when US Secretary of Defense Pete Hegseth said last month that Kyiv joining NATO was unrealistic – upending the alliance’s stated policy while handing Russia a major concession – and told European allies the US will no longer prioritize European and Ukrainian security.
Later, Vice President JD Vance made a blistering speech to European leaders in Munich, claiming they are suppressing free speech, losing control of immigration, refusing to work with hard-right parties in government – and that the biggest threat they face comes “from within,” rather than China and Russia.
And Trump had already wrongly accused Kyiv of starting the conflict and labeled Zelensky a “dictator.”
Then Zelensky met Trump on Friday as their two countries tried to hammer out an agreement that would give Washington access to Kyiv’s mineral resources in exchange for investment and what Ukraine hopes would be concrete security guarantees.
That deal looks off the table for now after the fiery showdown which saw the Ukrainians instructed to leave the White House, accused of being ungrateful for American military support.
Europe steps up
Western nations were quick to signal their continued support for Zelensky and his war-torn country.
On Saturday Zelensky arrived in London, where British Prime Minister Keir Starmer embraced him in front of the TV cameras. That warm reception also extended to a meeting with King Charles at Sandringham House.
But it was at a crucial summit of European leaders in London that European unity and allyship with Ukraine was on full display, as they attempted to forge a path toward a ceasefire and ramp up ongoing military support for Kyiv.
Starmer told the summit that the West is at a “crossroads in history” and “this is not a moment for more talk. It’s time to act.”
NATO chief Mark Rutte said more countries agreed to ramp up defense spending, and European Commission President Ursula von der Leyen said it was vital for Europe to “rearm” and would present a plan to do that this week.

Fresh plan to stop the fighting
During the meeting, France and Britain proposed an alternative peace deal for Ukraine that would involve a month-long limited ceasefire, French President Emmanuel Macron told Le Figaro newspaper.
Countries would enter a “coalition of the willing” to defend a deal and guarantee peace, Starmer said, and his country would back this with “boots on the ground and planes in the air.”
Any potential peace plan would have to involve Russia, but Moscow would not dictate the terms of “any security guarantee,” Starmer added. Zelensky has not said whether he agreed with the proposal and Russia has already said it will not accept European troops as peacekeepers.
And it remains to be seen whether this proposal has legs with the White House, which has pursued direct peace talks with Moscow that currently do not include Ukraine or Europe.
American support still needed
What was clear from the meeting is that US support is still crucial for Ukraine peace efforts. Starmer reiterated any plan would need “strong US backing.”
Since his disastrous visit to Washington, Zelensky has repeatedly expressed his gratitude for both US and European military support. “There has not been a day when we have not felt this gratitude,” he said in his nightly address Sunday night.
Zelensky said on Saturday his country was ready to sign the rare minerals deal with the US, and called the US a “strategic partner,” saying it would not benefit anyone other than Russia if US assistance to Ukraine were to stop.

A win for Putin
Putin has been tight lipped about the Oval Office fracas although Russian state media and officials have reacted with glee.
Moscow is now anticipating talks aimed at rebuilding the US-Russia relationship will continue in the weeks ahead and, though nothing has been announced in public, there’s talk of a Trump-Putin summit being fast-tracked.
The first round of extraordinary talks between Russia and the US were held in Saudi Arabia last month, sidelining Ukraine. CNN has learned that preparations for a second round are underway, and the weekend’s spat will likely ensure Ukraine remains blocked out.
Trump’s National Security Adviser Mike Waltz has also indicated US support for new leadership in Ukraine and told CNN’s Dana Bash there needed to be “territory concessions” in exchange for security guarantees.
Friday’s spat prompted several accusations that the US was aligning with Russia over its allies. Democratic Senator Chris Murphy told CNN “the White House has become an arm of the Kremlin.”
CNN’s Rob Picheta, Michael Rios, Hira Humayun, Matthew Chance, Mariya Knight, Saskya Vandoorne, Gul Tuysuz, Brice Laine, Lauren Said-Moorhouse contributed reporting.