Military chiefs from around the world will meet next week to discuss the "operational phase" of protecting Ukraine as part of a peacekeeping force, Sir Keir Starmer has announced.
The prime minister hosted a virtual meeting of the "coalition of the willing" on Saturday, which involved leaders of 26 nations, including Ukraine, plus the EU and NATO, to discuss ending the war in Ukraine.
Speaking after the 90-minute meeting, Sir Keir revealed military chiefs from the group of Western nations would meet on Thursday as they move "into an operational phase".
He said they would draw up plans to help secure Ukraine "on the land, at sea and in the sky" if a peace deal can be agreed with Russia.
Ukraine war latest: We must be prepared to defence peace deal
The day before, Ukraine President Volodymyr Zelenskyy accepted a proposal for a 30-day interim ceasefire as Russia agreed to an end to fighting, however President Vladimir Putin said "lots of questions" remain over the proposals.
Notably absent from Saturday's call was US President Donald Trump, however, Sir Keir reiterated any peace deal requires a US backstop.
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He said the UK is talking to the US "on a daily basis" and there is a "collective resolve" to end the war, which has been shown by the "momentum we're building up now" by the many allied countries being "on the same page" both politically and militarily.
He said Thursday's meeting of military chiefs "is very much an operational planning meeting".
Answering a question from Sky News' deputy political editor Sam Coates on what the rules of engagement would be for troops on the ground as part of a peacekeeping process, Sir Keir said the meeting will set that out.
He said he has already indicated he wants the UK "to play a leading role" in the provision of troops and air power, while other countries will have different capabilities.
But, he said a peace deal needs to be achieved first, which requires more pressure on Russia.
"If there's going to be lasting peace, there's going to have to be security arrangements," the PM said, noting that Putin has previously broken a peace deal with Ukraine.
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