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The most brutal tragedy in human history, World Wars I and II. For what purpose did the numerous great powers start the war? 00:00 Opening 02:10 The worst tragedy in human history, 'World War I' 04:05 The spark of 'World War I', the Sarajevo incident! 14:07 Why did the war between the two countries spread into a 'world war'? 20:35 Hyperinflation in defeated Germany 35:32 The prelude to World War II and the Nazi fraud?! 57:07 Pearl Harbor Attack Part 1 The start of a war that changed the world history of the 20th century! 01:11:04 Pearl Harbor Attack Part 2 Why did Japan attack the United States? 01:26:19 The prelude to the Pacific War Japan's plan #Sapiens #Reading the history of war #Dr. Yong-Han Lim