20th-Century Global Conflicts
What you must understand
Focus on the causes, conduct, and consequences of the two world wars and the ideologies between them. For World War I: alliance systems, Balkan nationalism, imperial rivalry, mobilization plans, and the total-war home front. Understand the peace settlements (Versailles and its reparations and territorial clauses) and their contested legacy.
For the interwar period, know the Russian Revolution and Soviet state formation, the fragility of new democracies, the Great Depression, and the rise of fascism and Nazism (charismatic leadership, anti-communism, ultranationalism, racial ideology, and paramilitary politics). For World War II, understand expansionism, appeasement, total mobilization, occupation, and the Holocaust as a state-organized genocide. Postwar consequences include the United Nations, decolonization pressures, and the wartime destruction that shaped the Cold War.
Traps
- Do not assign WWI to a single cause; structural and contingent factors interacted.
- Appeasement was a policy choice with domestic and strategic motives, not mere naivety.
- Distinguish fascism from authoritarian conservatism, while noting overlaps.
- Avoid anachronistic language about wartime decisions.
Rule of thumb
Analyze conflict in layers: structural pressures → triggering crisis → decision-making → mobilization capacity → settlement terms. Settlements often plant the next conflict.