Ukrainian forces have pushed back the Russian army in a rapid counter-offensive in eastern Ukraine.
Hundreds of graves have been found in Izyum as the true horrors of the war are being slowly revealed. Kharkiv’s regional government say evidence from the mass graves amount to war crimes.
But will President Putin become more unpredictable as a result?
BBC Newsnight’s Chief Correspondent David Grossman examines how successful the counter-offensive has been and where the conflict goes next.
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