After WW1 Hitler was very depressed about the war and how Germany lost hes was very upset. He eventually got over the disaster.He also lectured about the dangers of the Communism and Jews. At this stage he was still in and around the army he became an undercover agent whose job was to root out communists, he was set to do a job to investigate a group called German workers party he went to to the organisation and did a speech then afterwards asked if he could join the group. After joining the group and being in the group for a while he came up with an idea of calling it National Socialist German Workers or as some may know them as The Nazis