Downing Street has warned Donald Trump that Ukraine must not be forced to give up any of its land to end to its war with Russia.

Prime minister Keir Starmer’s official spokesman spoke out as the US president prepares to hold peace talks with Vladimir Putin in Alaska.

Trump has faced criticism for so far not inviting Ukrainian president Volodymyr Zelenskyy to the negotiations.

That has raised fears that Ukraine could be told to give up any Russian-occupied land in order to end the war.

Trump has suggested “some swapping of territories” as part of any peace deal.

But the No.10 spokesman insisted any agreement without Ukrainian approval would be unacceptable.

He said: “ Any peace must be secured with Ukraine, not imposed on it. The prime minister has been very clear that th

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