The head of the Russian mercenaries of the Wagner Group has resumed this week a strategy that he uses on a recurring basis. He is attacking the top military commanders of Russia for the failures in the war in Ukraine.

This time, however, the criticism has come at a time when Moscow boasted an unusual and much-needed victory in Ukraine's 15-month-old war. He spoke of the Kremlin's stance at the start of the war, when President Vladimir Putin tried to justify the invasion by claiming it was a campaign against "Nazis"