 After the Nazi "Machtergreifung" in 1933, the production was supervised and censored by the Ministry of Public Enlightenment and Propaganda under Joseph Goebbels, who had realized the enormous significance of newsreels for his propaganda purposes.Upon the German invasion of Poland in September 1939, marking the outbreak of the Second World War, the Nazi authorities consolidated the four separate newsreel production efforts into one, led by the Universum Film AG in Berlin.These newsreels were merged into a single wartime newsreel, but kept their respective opening titles until June 1940.