Historians have discovered a Second World War rant by Adolf Hitler condemning his top generals as "flabby, indecent and complete failures".
The 85-minute transcript, which was found in the Russian defence ministry, is from 1942 - showing that Hitler became disillusioned with his commanders much sooner than previously thought.
Germany's Spiegel magazine called the find "spectacular".
The conversation with field marshal Wilhelm Keitel, who was head of German high command for most of the war, took place in Vinnitsa, Ukraine - site of one of his headquarters for the war against Russia.
"A year after the invasion of the Soviet Union the eastern campaign had failed - and Hitler was raging," said the magazine.