Vladimir Putin has agreed to allow Ukraine’s allies to offer it a NATO-like security guarantee as part of an eventual deal to end the war, according to US special envoy Steve Witkoff.

Mr Witkoff said the Russian president agreed to the move when he met with Donald Trump in Alaska on Friday.

Speaking to CNN on Sunday, Mr Witkoff, who was by the US president’s side at the summit, 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 previously met with Mr Putin to discuss an end to the Ukraine war, said Friday’s summit was the first time he had heard the Russian president agree to the suggestion of NATO-like protection – and called it “game-changing”.

His comments came as Volodymyr Zelenskyy met with European Commission President Ursula von der Leyen in Brussels.

The Ukrainian president said in a post on X: “This is a historic decision that the United States is ready to take part in security guarantees for Ukraine.

“Security guarantees, as a result of our joint work, must really be very practical, delivering protection on land, in the air, and at sea, and must be developed with Europe’s participation.”

Ms von der Leyen, speaking at a news conference with the Ukrainian president, said the European Union “is ready to do its share”.

EU leaders to join Zelenskyy at White House

Sunday afternoon also saw Ms von der Leyen and Mr Zelenskyy dial in to a meeting with the coalition of the willing, a peacekeeping alliance of European leaders – some of whom will accompany Mr Zelenskyy to meet with Mr Trump tomorrow.

Ms von der Leyen will be at the crunch talks in Washington DC, as will Sir Keir Starmer, France’s Emmanuel Macron and Italy’s Giorgia Meloni.

Germany’s Chancellor Friedrich Merz and NATO Secretary General Mark Rutte will also be in attendance, after the US president reportedly extended an invitation to European leaders.

Read more: Why is Zelenskyy bringing a posse of leaders?

Mr Putin has reportedly made demands to take control of the eastern Donetsk and Luhansk regions of Ukraine during his summit with Mr Trump as a condition for ending the war.

In exchange, Russia would give up other Ukrainian territories held by its troops, according to several news reports citing sources close to the matter.

Russian troops currently occupy large parts of the two regions and, in September 2022, Moscow announced it was officially annexing them, alongside the Kherson and Zaporizhia regions, in a move rejected and condemned as illegal by the West.

Mr Trump is said to be planning to urge Mr Zelenskyy to agree to the conditions as part of a peace deal to end the war.

That’s despite the Ukrainian president previously ruling out formally handing any territory to Moscow, which he says would be impossible under the country’s constitution, and would deprive Ukraine of defensive lines and open the way for Moscow to conduct further offensives.

In coordinated statements following the Alaska summit, European leaders said Mr Zelenskyy must play a greater role in future talks, and that peace cannot be achieved without him.

The US president said the Washington talk with Mr Zelenskyy could potentially pave the way for a three-way meeting with Mr Putin.

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On Saturday, Downing Street insisted Sir Keir and other allies stand ready to support the next phase of talks to end the war.

“At the meeting that will take place at the White House tomorrow, the Prime Minister, with other European partners, stands ready to support this next phase of further talks and will reaffirm that his backing for Ukraine will continue as long as it takes,” a statement from No 10 said.

A posse of European leaders will join the meeting between Donald Trump and Volodymyr Zelenskyy in Washington.

European Commission President Ursula von der Leyen said she will join the talk “at the request of President Zelenskyy”, adding that she “and other European leaders” will be meeting at the White House on Monday.

Also set to join in are Sir Keir Starmer, German Chancellor Friedrich Merz, France’s Emmanuel Macron, Italy’s Prime Minister Giorgia Meloni, NATO Secretary General Mark Rutte and Finnish President Alexander Stubb.

Mr Stubb’s friendship with Mr Trump is said to have blossomed since the pair bonded over their love of golf during a tournament at Mar-a-Lago in March.

Follow the latest developments on the Ukraine war

Mr Stubb previously said that Mr Trump is “the only person who can broker a peace” deal, saying the US president was “the only one that Putin is afraid of”.

Bringing a gang of leaders along could be an attempt by Mr Zelenskyy to prevent a repeat of the infamous Oval Office showdown with Mr Trump and the vice-president, JD Vance, in February.

They were set to discuss a potential ceasefire with Russia and a mineral deal between Ukraine and the US, but their meeting descended into chaos when Mr Vance berated Ukraine’s leader for being insufficiently grateful for US help – in front of the media.

He completed his ambush of Mr Zelenskyy by mocking him for not wearing a suit, with Mr Trump adding that the Ukrainian didn’t “have the cards right now with us”.

The disastrous meeting ended with Mr Zelenskyy prematurely leaving the White House. He later said the bust-up was “not good for both sides”.

Analysis: Zelenskyy knows he risks another ambush

At the US-Russia summit on Friday, Mr Trump (quite literally) rolled out the red carpet for Mr Putin and even let the Russian leader take a ride with him in the presidential limousine dubbed The Beast.

Mr Zelenskyy is set for a less warm welcome, with no red carpet or fly past, no round of applause, according to Sky News’ US correspondent Martha Kelner.

The atmosphere may be more businesslike with European leaders like Mr Stubb in Mr Zelenskyy’s corner, and their inclusion as mediators could help prevent a repeat of the Oval Office clash.

Mr Stubb has repeatedly voiced support for Ukraine, and Finland, along with other Nordic countries and the three Baltic states, has been among the country’s staunchest supporters.

The 2022 invasion prompted Finland, which shares a 1,340-km (833-mile) border with Russia, to join NATO two years ago, upending decades of non-alignment.

Read more from Sky News:
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Two days before the Alaska summit, Mr Zelenskyy, Mr Trump and European leaders, including Mr Stubb, were on a conference call, after which the Finnish leader wrote on X: “Excellent meeting with @Potus and European leaders, including @ZelenskyyUA. Aligned views and unity.

“We are working together for a ceasefire and a sustainable peace. We are there for Ukraine every step of the way. The next few days and weeks can be decisive.”

Whether any other European leaders will accompany Mr Zelenskyy will likely be confirmed late Sunday following a conference call between members of the “coalition of the willing”.

Retired French General Dominique Trinquand, a former head of France’s military mission at the United Nations, said European leaders were “very afraid of the Oval Office scene being repeated and so they want to support Mr Zelenskyy to the hilt”.

“It’s a power struggle and a position of strength that might work with Trump,” he added.

More than 30 people have been arrested in Israel for “disruption of order” as families of hostages held in Gaza step up their campaign with a nationwide strike.

Protestors are demanding the Israel government make a deal to secure the release of hostages held by militants in Gaza.

The campaign escalated on Sunday, with demonstrators staging a “day of stoppage” that blocked traffic and closed businesses.

Protesters gathered at dozens of points throughout Israel, including outside politicians’ homes, military headquarters and on major highways, where they were sprayed with water cannons as they blocked lanes and lit bonfires that cloaked roads in smoke.

Police said they had arrested 32 people as part of the nationwide demonstration – one of the fiercest since the uproar over six hostages found dead in Gaza last September.

The action comes weeks after militant groups released videos of hostages and Israel signalled plans for a new Gaza offensive.

Protesters fear further fighting could endanger the 50 hostages believed to remain in Gaza, only about 20 of whom are thought to be alive.

The demonstrators chanted: “We don’t win a war over the bodies of hostages.”

“Military pressure doesn’t bring hostages back – it only kills them,” former hostage Arbel Yehoud said at a demonstration in Tel Aviv’s Hostage Square.

“The only way to bring them back is through a deal, all at once, without games.”

Anat Angrest, mother of hostage Matan Angrest, added: “Today, we stop everything to save and bring back the hostages and soldiers.

“Today, we stop everything to remember the supreme value of the sanctity of life.

“Today, we stop everything to join hands – right, left, centre and everything in between.”

Prime Minister Benjamin Netanyahu has demanded the immediate release of the hostages but is haunted by the potential for mutiny within his coalition.

Far-right members of his cabinet insist they won’t support any deal that allows Hamas to retain power. The last time Israel agreed to a ceasefire that released hostages, they threatened to topple Mr Netanyahu’s government.

Finance Minister Bezalel Smotrich branded the stoppage “a bad and harmful campaign that plays into Hamas’ hands, buries the hostages in the tunnels and attempts to get Israel to surrender to its enemies and jeopardise its security and future”.

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Israel is currently preparing for an invasion of Gaza City and other populated parts of the besieged strip, aimed at destroying Hamas.

The military body that coordinates its humanitarian aid to Gaza said that the supply of tents to the territory would resume.

Coordinator of Government Activities in the Territories (COGAT) said it would allow the United Nations to resume importing tents and shelter equipment into Gaza ahead of plans to forcibly evacuate people from combat zones “for their protection”.

Meanwhile in Gaza, the health ministry said two children died on Sunday due to malnutrition-related causes – reportedly bringing the total over the last 24 hours to seven.

Also on Sunday, Israeli airstrikes targeted a power plant in Yemen’s capital of Sanaa.

The action escalates strikes on Iran-backed Houthis, who since the war began have fired missiles at Israel and targeted ships in the Red Sea.

Israel’s military said the strikes targeted energy infrastructure it claimed was being used by the Houthis, and were launched in response to missiles and drones aimed at Israel.