Donald Trump’s 28-point peace plan to end Russia’s war in Ukraine has attracted some brutal comparisons to past diplomatic failures.

The US president, desperate to end the conflict, has come up with a strategy which would see Ukraine cede yet more territory to Russia , cap the size of its military and give up any ambitions to join Nato – all in the name of peace.

These terms are all highly favourable to Russia, which already controls a fifth of Ukrainian land, and would involve major capitulation from Kyiv.

The most senior Democrat on the US Congress’ intelligence committee, senator Mark Warner, said the proposals would go down “as a historically bad deal, rivaling Neville Chamberlain giving in to Hitler before World War II”.

Former UK prime minister Chamberlain championed t

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