Senior Kremlin officials, including Putin, have repeatedly demanded that Ukraine surrender Donetsk, Luhansk, Zaporizhzhya and Kherson regions, including areas that have not been occupied by Russian forces.

Ukraine and the US are to hold crunch peace talks in Saudi Arabia from tomorrow following a tense few weeks in which relations between Kyiv and Washington looked more fraught than ever, US officials have said they are planning on using the meeting with their Ukrainian counterparts to determine whether Kyiv is willing to make material concessions