The role of ideology and competing political movements in the rise of dictatorship and authoritarian government in the 20th century

What this dot point is asking

A central theme across the Unit 3 electives is the role of ideology in the rise of dictatorship. SCSA wants you to understand what the major 20th-century ideologies stood for, how they were used to gain and hold power, and why several modern nations turned from constitutional government to authoritarian or totalitarian rule. This thematic dot point gives you the comparative framework to apply to your own nation, whether the ideology in question is Nazism, Stalinist communism or Japanese ultranationalism. It is examined through source analysis and essays.

You first need to know what the ideologies stood for. Communism, drawing on Marx and adapted by Lenin and Stalin, held that history moved through class struggle towards a classless society, justifying the dictatorship of the proletariat, state control of the economy, and the elimination of class enemies. Fascism and Nazism rejected both liberalism and communism, exalting the nation or race, the leader, struggle and violence; Nazism added a genocidal racial antisemitism. Japanese ultranationalism centred on the divine emperor, the unique destiny of the Japanese nation, and military virtues. Each ideology claimed total authority over politics, economy and society.

Ideology mattered because it provided several things a movement needed. It offered a diagnosis of the nation's problems, usually blaming identifiable enemies, whether Jews, capitalists, communists or foreign powers. It offered a vision of renewal that promised to restore national greatness. It justified the concentration of power in a party and a leader, and it legitimised the use of force against opponents. Propaganda then spread these ideas to mass audiences, a process explored further in the content area on social control.

The rise to power followed different routes, and examiners reward attention to these differences. Hitler came to power legally, appointed Chancellor in January 1933 before dismantling democracy from within. The Bolsheviks seized power by armed revolution in October 1917 and then won a civil war. In Japan, no single seizure occurred; the military gradually came to dominate civilian government through intimidation, assassination and the army's constitutional independence. Comparing these routes sharpens your understanding of how ideology operates in different contexts.

Once in power, ideology shaped how dictatorships ruled. It justified the consolidation of control, the building of a one-party or one-leader state, and the reordering of the economy and society according to doctrine. Stalin's ideology justified collectivisation and the Five-Year Plans; Nazi racial ideology justified the Nuremberg Laws and ultimately the Holocaust. Ideology also drove foreign policy and war, as expansionist visions, Hitler's Lebensraum, Japan's Co-Prosperity Sphere, propelled nations towards conflict.

When you study your nation, identify the ideology precisely, explain how it was used to gain power, and trace how it shaped the regime's actions. Always weigh ideology against other factors, including economic crisis, personal ambition, institutional weakness and contingency.

Historiographically, the concept of "totalitarianism" was used during the Cold War to group Nazi Germany and the Soviet Union as essentially similar regimes of total control; later historians questioned how total that control really was, emphasising chaos, improvisation and the limits of regime power. The intentionalist versus functionalist debate over Nazi Germany is the classic example of arguing about how far ideology drove events. Bringing these debates into your essays demonstrates genuine analytical depth.