Vladimir Putin has declared that “all of Ukraine is ours” in one of his most hardline comments on the country since Donald Trump took power.In recent months, the Russian president has danced around involvement in peace talks – without making any firm commitments – and even suggested he would be prepared to meet with Ukraine’s Volodymyr Zekelensky.

Ukrainian and Russian delegations met again in Istanbul on Monday to take part in the next round of U.S.-brokered peace talks.