Volodymyr Zelenskyy could “end the war with Russia almost immediately, if he wants to”, Donald Trump has said – ahead of crucial White House talks on the future of Ukraine.

Mr Trump made the comment in a series of social media posts throwing forward to his meeting with the Ukrainian president, who will be supported by Sir Keir Starmer and other European leaders.

The allies are travelling to Washington DC with the aim of protecting Ukraine from having to concede key regions to Russia in exchange for peace, following the US president’s high-profile meeting with Vladimir Putin in Alaska on Friday.

They will also be keen to avoid a repeat of Mr Zelenskyy‘s last heated visit to the White House in February, which ended with the Ukrainian leader leaving early and later resulted in US aid to Ukraine being temporarily halted.

“President Zelenskyy of Ukraine can end the war with Russia almost immediately, if he wants to, or he can continue to fight,” Mr Trump shared on his own network, Truth Social, on Sunday. “Remember how it started,” he added, before highlighting the annexation of Crimea.

Describing today as a “big day” at the White House, he added: “Never had so many European Leaders at one time. My great honor to host them!!!.”

Sir Keir and six other political heavyweights will present a united front alongside Mr Zelenskyy, who is expecting to face calls to surrender full control of Donetsk and Luhansk – two mineral-rich regions where large areas are currently occupied by Russian troops.

In September 2022, Moscow announced it was officially annexing them, alongside the Kherson and Zaporizhzhia regions, in a move rejected and condemned as illegal by the West.

Mr Putin would reportedly give up other territories held by his troops in exchange and agree to a “NATO-like” security guarantee preventing Ukraine from further incursion.

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At today’s Oval Office encounter, Mr Zelenskyy will be joined by France’s Emmanuel Macron, Germany’s Friedrich Merz, Italy’s Giorgia Meloni and Alexander Stubb, president of Finland, as well as head of NATO Mark Rutte and European Commission president Ursula von der Leyen, and Sir Keir.

They are set to arrive at midday (5pm UK time). Mr Trump and Mr Zelenskyy will hold a bilateral meeting first, before a multilateral meeting with the rest of the European leaders.

In a message on X following the US president’s comments, the Ukrainian leader expressed gratitude for the invitation and said everyone involved shares “a strong desire to end this war quickly and reliably”.

However, he said peace “must be lasting”, and added: “Ukrainians are fighting for their land, for their independence. Now, our soldiers have successes in Donetsk and Sumy regions.

“I am confident that we will defend Ukraine, effectively guarantee security, and that our people will always be grateful to President Trump, everyone in America, and every partner and ally for their support and invaluable assistance.

“Russia must end this war, which it itself started. And I hope that our joint strength with America, with our European friends, will force Russia into a real peace.”

What is the ‘NATO-like’ security guarantee?

Following the Trump-Putin summit in Alaska, the two leaders said they had agreed on some points but did not elaborate further.

Speaking to CNN on Sunday, US special envoy Steve Witkoff said: “We were able to win the following concession: that the United States could offer Article 5-like protection, which is one of the real reasons why Ukraine wants to be in NATO.”

Article 5 is a core principle of the 32-member collective, which states that an armed attack against one or more of its members shall be considered an attack against all. It has only been invoked once, by the US, in the wake of the 9/11 attacks in 2001.

Russia has repeatedly insisted that Ukraine cannot be allowed to join NATO and has dismissed the idea that NATO member forces could be peacekeepers under some sort of ceasefire deal.

Mr Witkoff, who has held previous discussions with Mr Putin on ending the war, said Friday’s summit was the first time he had heard the Russian leader agree to the suggestion of NATO-like protection – and called it “game-changing”.

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In a post on X, Russian envoy Mikhail Ulyanov said Russia agrees a future peace agreement “should provide reliable security assurances or guarantees for Ukraine”.

But Moscow should also get efficient security guarantees, he added. “What the West has to offer? Apparently they haven’t yet started to think about it. It is a mistake, which needs to be corrected.”

He also said efforts now should focus on the “main goal – the need to elaborate quickly an efficient long-term peace accord, not a questionable ceasefire which diverts attention”.

No talk of ceasefire after summit

Despite prior threats of severe sanctions for Russia should a ceasefire not be agreed during the talks in Alaska, there was no mention of this from Mr Trump afterwards. Instead, he said he wanted to focus on a long-term deal for peace.

Mr Putin has long refused to agree to a ceasefire as a precondition for talks to end the war, prompting fears that Russia could continue gaining ground in Ukraine as negotiations take place.

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At a news conference on Sunday, Ms von der Leyen said the aim was to “stop the killing”, and suggested a ceasefire and a peace deal would have that same impact.

Mr Trump has previously said today’s meeting with Mr Zelenskyy could potentially pave the way for a three-way meeting with Mr Putin.