Nearly one in five Poles died during World War Two after the Nazi invasion in 1939 ushered in one of the most brutal episodes of ethnic cleansing the world has ever seen. This film destroys the myth that Poland's Nazi leaders were acting under detailed 'orders' and that the country's Nazi administration was a model of German efficiency. Arthur Greiser and Albert Forster, the two Nazi leaders charged with Germanizing Poland, could not even agree on who should be 'Germanized'.
Nazis: A Warning From History was broadcast on BBC4 at Thursday 23 February 2017, 23:12.