Putin was caught lying about imaginary Russian victories again in September. His habit of exaggerating battlefield gains reflects mounting unease over the credibility gap between the Kremlin’s superpower pretensions and his army’s underwhelming performance in Ukraine, writes Peter Dickinson.

News Flash: The Russian leader was lying about Ukraine, again, and it’s easy to prove it.

Putin was caught lying about imaginary Russian victories again in September. His habit of exaggerating battlefield gains reflects mounting unease over the credibility gap between…