Answer: Nazi propaganda.
Step-by-step explanation:
Through his speeches, actions, and the media, Hitler tried to propagate the politics of Nazism. From the very first political engagements, his policy went in that direction. After ending up in prison in 1923, Hitler continued his political activities behind bars. He writes his work Mein Kampf (My struggle), where he continues to propagate Nazi ideology. Coming to power, Hitler gained even more strength the moment he became chancellor. He completely controlled the media and ordered the destruction of a massive amount of literature contrary to his ideology. In this way, Hitler convinced the German people of the correctness of his policy.