The era between 1918 and 1939 represents a paradox in human history. It began with the promise of “making the world safe for democracy” and ended with the most destructive war ever known, fuelled by ideologies that rejected every democratic principle. Specifically, the rise of totalitarian regimes during these years transformed the relationship between the individual and the state forever.

To understand this phenomenon, one must look beyond the biographies of dictators. Instead, we must evaluate the structural failures of the 19th-century liberal order and the psychological trauma of the First World War. This guide provides a deep-dive analysis of how these regimes emerged, how they maintained control and why they eventually plunged the world into total conflict.

Table of Contents

1. Defining Totalitarianism: The Pursuit of Total Control
2. The Ashes of Empire: The Post-WWI Power Vacuum
3. The Economic Catalyst: Global Depression and its Fallout
4. Ideological Foundations: Fascism, Nazism and Communism
5. Case Study: Fascist Italy and the Birth of the “Duce”
6. Case Study: Stalinist USSR and the Revolution from Above
7. Case Study: Nazi Germany and the Racial State
8. Mechanisms of Domination: Propaganda, Terror and Youth
9. Historiography: Analysing Success, Failure and Intent
10. The Road to Total War: International Impact and Legacy