Europe was so tense it would take only the tiniest spark to set off total chaos and that spark came in 1914 when the King of Austria and his posse were rolling when a Serbian Rebel stepped to him, challenging him and his totally pimped out "T" (colloquial slang from the time for "Model T"). Franz Ferdinand was not impressed by the impudent gangsta, and he was like "Ah hell no" and the Serbian was all like "Whatcha goin do, Boyeeeeee?". The Serb busted a cap in Franz's ass and in his ho' too. After this Austria promptly declared war on Serbia and through a complex set of diplomatic treaties the entire world declared war on everything.