The latest US-sponsored push for peace in Ukraine is faltering, with diplomatic efforts showing little progress in narrowing the divide between Moscow and Kyiv.

Although negotiators linked to US President Donald Trump recently suggested Russia might be open to ending the war, the Kremlin has now issued one of its toughest warnings yet insisting Ukrainian forces must withdraw from the eastern Donbas region or Russia will take the remaining territory by force.

 Ukrainian President Volodymyr Zelensky has responded just as firmly, making clear that Kyiv will not surrender any territory under any circumstances.

We now talk to Political analyst Jim Henry in the United States about the latest developments.