European leaders including from Germany, France and Britain will accompany Volodymyr Zelenskiy to meet Donald Trump in Washington, they said on Sunday, seeking to bolster him as the US president presses Ukraine to accept a quick peace agreement.

A day before the talks with Trump, German Chancellor Friedrich Merz, French President Emmanuel Macron and British Prime Minister Keir Starmer were hosting a meeting of allies on Sunday to shore up Zelenskiy's position, hoping in particular to lock down robust security guarantees for Ukraine that would include a US role.

President Trump is leaning on Zelenskiy to strike an agreement after he met Kremlin chief Vladimir Putin on Friday in Alaska. According to sources, the US and Russian leaders discussed proposals for Russia to relinquish tiny pockets of occupied Ukraine in exchange for Ukraine ceding a swathe of fortified land in the east and freezing the front lines elsewhere.

At face value, some of Putin's demands would be hugely difficult for Ukraine to accept, setting the stage for potentially fraught talks about ending Europe's deadliest war in 80 years, which has dragged on for 3-1/2 years and killed or wounded more than 1 million people.

European allies are keen to help Zelenskiy avoid a repeat of his last Oval Office meeting, in February. That went disastrously, with Trump and Vice President JD Vance giving the Ukrainian leader a public dressing-down, accusing him of being ungrateful and disrespectful.

European Commission President Ursula von der Leyen will also travel to Washington, as will Finland's President Alexander Stubb, whose access to Trump included rounds of golf in Florida earlier this year, and Italian Prime Minister Giorgia Meloni, who is an admirer of many of Trump's policies.

"The talks will address, among other things, security guarantees, territorial issues, and continued support for Ukraine in its defence against Russian aggression," the German government said in a statement about the Washington trip.

"This includes maintaining pressure on sanctions."

Macron, Merz and Starmer will host a virtual meeting of the "coalition of the willing" - a grouping of allies of Kyiv - from 1300 GMT on Sunday. Von der Leyen is hosting Zelenskiy in Brussels from where the two leaders will also dial in.

European powers want to help set up a trilateral meeting between Trump, Putin and Zelenskiy to make sure Ukraine has a seat at the table to shape its future.

They also want security guarantees for Ukraine with US involvement, and the ability to crank up pressure on Moscow if needed.

"They will spell out what they consider essential in terms of security guarantees: what they can do themselves, what falls to the coalition of volunteers, and also what they expect from the United States," a European government official said. "Indeed, they expect a very robust commitment."

For his part, Putin briefed his close ally, Belarusian President Alexander Lukashenko, about the Alaska talks, and also spoke with Kazakhstan's President Kassym-Jomart Tokayev. Russian Foreign Minister Sergei Lavrov held calls on Saturday with his Turkish and Hungarian counterparts.

Hungary has been a hold-out in the European Union against the bloc's efforts to isolate Putin since he sent troops into Ukraine in a full-scale invasion in February 2022. Turkey has tried to maintain open diplomatic channels with both Ukraine and Russia.

'VERY BIG POWER'

Trump said on Friday that Ukraine should make a deal to end the war because "Russia is a very big power, and they're not".

After the Alaska summit, Trump phoned Zelenskiy and told him that the Kremlin chief had offered to freeze most front lines if Ukraine ceded all of Donetsk, the industrial region that is one of Moscow's main targets, a source familiar with the matter said.

Zelenskiy rejected the demand, the source said. Russia already controls a fifth of Ukraine, including about three-quarters of Donetsk province, which it first entered in 2014.

Trump also said he agreed with Putin that a peace deal should be sought without the prior ceasefire that Ukraine and its European allies have called for. That was a reversal of his position before the summit, when he said he would not be happy unless a ceasefire was agreed on.

Zelenskiy said Russia's unwillingness to pause the fighting would complicate efforts to forge a lasting peace. "Stopping the killing is a key element of stopping the war," he said on X.

Russia has made steady advances for months, although in recent days Ukraine said it had cleared some territory where Russian troops had broken through.

In his statement after the Alaska summit, Putin signalled no movement in Russia's long-held demands, which also include a veto on Kyiv's desired membership in the NATO alliance.

He also warned Ukraine and its European allies not to "create any obstacles. That they will not attempt to disrupt the emerging progress through provocation or behind-the-scenes intrigue".