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๐ŸŒAP World History: Modern Review

QR code for AP World History: Modern practice questions

World War I & World War II - Slides

๐ŸŒAP World History: Modern
Review

World War I & World War II - Slides

Written by the Fiveable Content Team โ€ข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโ€ขWritten by the Fiveable Content Team โ€ข Last updated September 2025

Resources

Global conflicts, most notably the two world wars, were total wars that featured new technology from industrialization. In AP World, we focus on the causes and effects of these two global conflicts, many of which are shared. For WWI causes, remember M.A.I.N. (militarism, alliances, imperialism, and nationalism). The effects of WWI and the Treaty of Versailles, combined with many of the M.A.I.N. factors, then catalyzed WWII. Keep in mind this war was fought on two fronts, in Europe and in Asia (due to colonies), against German and Japanese expansion respectively.