Stalin used terror to gain complete control over armey and he also used terror over intelligentsia because he feared they could lead a revolt against him. Hitler had a secret police called the gestapo they would arrest enemies of the state.Everyone was scared of this secret police squad because they were scared to get put in concentration camps. Mussolini used terror to create a fascist state. He made squads to go into streets to clear out socialist and communist.
Totalitarian dictators use propaganda to manipulate people to believe in what they believe in. Hitler used propaganda when he tried convincing Germans all Jews were ugly,bad people, trader and that they were the cause of Germany losing world war 1. Stalin controlled journalists and newspapers for propaganda he told them to not criticize him or his party members and that they weren't allowed to discuss about personal life. Mussolini uses a number of methods of propaganda he used Radio, Magazine, Rallies, Speeches, Cinema, Newspapers, Posters, Culture And