U.S.-mediated peace talks between Russia and Ukraine have stalled as Kyiv refuses to cede territory in the country's east without a fight, a Kremlin demand that officials familiar with the matter say is not opposed by Washington.
At the same time, President Volodymyr Zelensky faces scrutiny after offering differing assessments of U.S. readiness to provide security guarantees.
Kyiv has insisted that credible security guarantees are necessary to prevent Russia from launching another invasion.
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