The world was on fire in the 20th century—global empires crumbled, revolutions erupted, and two devastating World Wars reshaped the balance of power. In this episode of AP History Help, we break down Unit 7 of AP World History: Global Conflict (1900-Present). Why did empires like the Ottoman, Russian, and Qing dynasties collapse? How did the causes of World War I (M.A.I.N.) set the stage for World War II? What role did militarism, imperialism, and nationalism play in fueling war? We’ll cover fascism, communism, genocide, decolonization, and the long-term consequences of total war—all while sharpening your historical thinking skills for the AP exam. Grab your notes, and let’s dive in!

📌 Key Topics:
✔ Causes and effects of World War I & World War II
✔ The rise of fascism & communism (Hitler, Stalin, Mussolini, Mao)
✔ The Great Depression & its impact on global politics
✔ Mass atrocities (Holocaust, Armenian Genocide, Rwandan Genocide)
✔ Decolonization movements in Africa, Asia, and the Middle East
✔ Historical thinking skills: causation, continuity, and change over time

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