President Donald Trump speaks during the 157th National Memorial Day Observance at Arlington National Cemetery, Monday, May 26, 2025, in Arlington, Va.

A renowned historian on Monday said Donald Trump is “the barrier” to peace in Ukraine, laying out the two steps the US president could take to help realise his said goal of bringing the war to a close.

Trump, who has failed to deliver on his campaign pledge of ending the conflict within 24 hours of his inauguration, over the weekend railed against Putin for “needlessly killing a lot of people.”

“I’ve always had a very good relationship with Vladimir Putin of Russia, but something has happened to him,” Trump wrote on his Truth Social platform. “He has gone absolutely CRAZY!”

In the same post, Trump also levelled criticism at........

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