Analysis-Pokrovsk's fall will not cause frontline collapse, but weakens Ukraine in Trump's eyes
By Tom Balmforth and Yuliia Dysa KYIV, Dec 11 (Reuters) - Russia's capture of Pokrovsk appears to be a matter of 'when' not 'if', and while its fall will not trigger a collapse in Ukraine's defences, it weakens Kyiv at a sensitive juncture in U.S.-led negotiations to end the war.