Crash Course: World History — Season 1, Episode 38: World War II: Crash Course World History #38

Episode synopsis

John Green teaches you about World War II, aka The Great Patriotic War, aka The Big One. So how did this war happen? And what does it mean? We've all learned the facts about World War II many times over, thanks to repeated classroom coverage, the History channel, and your grandfather (or maybe great-grandfather) showing you that Nazi bayonet he used to keep in his sock drawer and telling you a bunch of age-inappropriate stories about his harrowing war experiences. So, why did the Axis powers think forceful expansion was a good idea? (they were hungry). So why did this thing shake out in favor of the Allies? Hint: it has to do with the fact that it was a world war. Germany and Japan made some pretty serious strategic errors, such as invading Russia and attacking the United States, and those errors meant that pretty much the whole world was against them.

About Crash Course: World History

Crash Course World History is a video course hosted by John Green that teaches world history from growing the first crops in the First Agricultural Revolution to global textile production in the 2010s. Across the series, it builds skills in identifying and explaining historical developments, analyzing events in broader context, and tracing patterns and connections across time and place—aiming to help viewers become more informed citizens of the world. Season 1 follows the 2012 AP World History curriculum in a 42-episode chronological survey, while Season 2 continues in 30 episodes with a more thematic approach that focuses on systems and encourages viewers to question how “history” is written and what biases shape it.

More episodes from Season 1

• E1The Agricultural Revolution: Crash Course World History #1
• E2Indus Valley Civilization: Crash Course World History #2
• E3Mesopotamia: Crash Course World History #3
• E4Ancient Egypt: Crash Course World History #4
• E5The Persians & Greeks: Crash Course World History #5
• E6Buddha and Ashoka: Crash Course World History #6
• E72,000 Years of Chinese History! The Mandate of Heaven and Confucius: World History #7
• E8Alexander the Great: Crash Course World History #8
• E9The Silk Road and Ancient Trade: Crash Course World History #9
• E10The Roman Empire. Or Republic. Or...Which Was It?: Crash Course World History #10
• E11Christianity from Judaism to Constantine: Crash Course World History #11
• E12Fall of The Roman Empire...in the 15th Century: Crash Course World History #12