Donald Trump seems to have come up with a new strategy to force Vladimir Putin into ending the Ukraine war: going after Russia’s allies. The American president has said he wants to discourage Moscow’s allies from buying its oil to disrupt Russia’s economy – a move, he claimed, would end the conflict.

Ukrainian President Volodymyr Zelenskiy said on Tuesday that he had had a "productive" conversation with his U.S. counterpart Donald Trump on ending the war, sanctions on Russia and the finalisation of a U.