Putin has ruled out any significant territorial concessions and demands that Kyiv abandon its NATO membership ambitions.

US President-elect Trump, who has vowed to swiftly end the conflict, is returning to the White House at a time of Russian ascendancy. Moscow controls a chunk of Ukraine about the size of the American state of Virginia and is advancing at the fastest pace since the early days of the 2022 invasion.

Vladimir Putin is open to discussing a ceasefire deal but rules out making any major territorial concessions and insists Kyiv abandon ambitions to join NATO, five sources told Reuters.