Interwar Europe and World War II: Crisis, Dictatorship, and Genocide

Fascism

A far-right political ideology that rejected liberal democracy and Marxism, celebrated aggressive nationalism, favored discipline and hierarchy, and often used mass mobilization and violence to promote a mythic national rebirth under a strong leader.

Totalitarianism

A type of regime that seeks to control not only politics but also culture, the economy, education, and private life through propaganda, surveillance, censorship, and terror (often applied to Nazi Germany and Stalin’s USSR).

Treaty of Versailles

The post–World War I peace settlement that became a symbol of humiliation and resentment in Germany and contributed to interwar instability.

March on Rome (1922)

The event that helped bring Benito Mussolini and the Fascist Party to power when Italy’s king invited Mussolini to form a government rather than risk greater instability.

Corporatism

Mussolini’s economic idea that workers and employers would cooperate in state-supervised “corporations” representing economic sectors; in practice it crushed independent unions and prioritized regime/employer goals.

Nazism

A form of fascism in Germany combining authoritarianism with militant racism and antisemitism, promising to overturn Versailles, rebuild the economy, and restore German greatness.

Weimar Republic

Germany’s fragile interwar democracy, weakened by legitimacy problems and crises (especially unemployment and inflation), making authoritarian solutions more attractive to voters and elites.

Enabling Act (1933)

A law that allowed Hitler’s government to bypass parliament, using constitutional mechanisms to dismantle democratic checks and establish dictatorship.

Night of the Long Knives (1934)

A purge in which Hitler eliminated internal rivals, helping consolidate his control and reassuring the army and conservative elites that he controlled radical forces.

Gestapo

Nazi Germany’s secret police force that enforced compliance through surveillance, arrests, and terror, including imprisonment of political enemies in concentration camps.

Five-Year Plans

Stalin’s state-directed economic programs aimed at rapid industrialization and central control of production.

Collectivization

Stalin’s policy of forcing peasants into collective farms; resistance was met with harsh, often violent repression.

Great Purge (1930s)

Stalin’s campaign of repression using show trials, secret police, and labor camps to eliminate real and imagined enemies of the regime.

Gulag

The Soviet system of labor camps used as a tool of punishment, repression, and economic exploitation during Stalin’s rule.

Great Depression

A global economic collapse beginning after the 1929 U.S. stock market crash that destabilized European politics by fueling unemployment, insecurity, and distrust in democratic governments.

Gold standard

A monetary policy tying currency values to gold; during the Depression it often pushed governments toward deflation and austerity to defend currency stability, worsening unemployment.

Economic nationalism

A Depression-era shift toward protecting domestic industry and seeking self-sufficiency (autarky), often alongside stronger state direction of the economy and (in some cases) rearmament.

Appeasement

The policy of British and French concessions to aggressive states in hopes of avoiding war, shaped by fear of another catastrophe and limited readiness but ultimately encouraging further aggression.

Munich Agreement (1938)

An appeasement deal in which Britain and France accepted German demands for the Sudetenland from Czechoslovakia, signaling weakness and sacrificing smaller states’ security.

Remilitarization of the Rhineland (1936)

Hitler’s violation of the post–World War I settlement by moving troops into the Rhineland; weak international response encouraged further German risk-taking.

Nazi-Soviet Pact (Molotov–Ribbentrop Pact, 1939)

A non-aggression pact between Nazi Germany and the USSR that allowed Hitler to invade Poland without immediate Soviet opposition, shocking observers due to the regimes’ ideological hostility.

Total war

A form of warfare in which states mobilize society’s full resources and blur civilian/military lines through economic direction, propaganda, and civilian targeting (bombing, sieges, starvation, genocide).

Holocaust

The Nazi regime’s systematic, state-sponsored persecution and murder of Europe’s Jews, culminating in genocide during World War II; central for showing how totalitarian power, racist ideology, and total war enabled mass murder.

Kristallnacht (November 1938)

A state-orchestrated wave of violence against Jewish homes, synagogues, and businesses that signaled escalating, regime-backed antisemitic violence.

Wannsee Conference (January 1942)

A meeting where Nazi officials coordinated the bureaucracy of the “Final Solution,” aligning state agencies behind the systematic deportation and mass murder of Europe’s Jews (implemented through extermination camps).