Several rounds of discussions have failed to clinch a deal, with Moscow insisting on hardline territorial and political demands that Kyiv has ruled out as tantamount to capitulation.
Hundreds of thousands of soldiers have been killed in the four-year war, triggered when Moscow launched its full-scale offensive against Ukraine in February 2022.
With Putin insisting on Ukraine's pullback from Donetsk and Zelenskyy ruling it out, a quick deal appears unlikely. Zelenskyy also expressed skepticism about a compromise US proposal to turn the easte ...