U.S. History/History


What caused world war 1?

Hi Niah,

The immediate cause of WWI was the assassination of the Austrian Archduke Franz Ferdinand, who was to be the next King of the Austria-Hungarian Empire. A man from Serbia was the assassin. Because of that, and because the government of Serbia was likely behind the plot, the Austria-Hungarian Empire declared war on Serbia. Russia was Serbia's ally, so Russia declared war on Austria-Hungary. But Germany was an ally of Austria-Hungary, so Germany declared war on Russia. But France was an ally of Russia, so France declared war on Germany. Then Germany brutally invaded neutral Belgium, which was an ally of Great Britain, so Great Britain declared war on Germany. So, the complicated arrangement of alliances produced a domino effect, producing WWI.

I hope this helps!


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Marc Aperio


I'm able to answer most questions about US History, whether related to political, social, economic, or military issues.


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BA History (High Honors)

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