The assassination of Archduke Franz Ferdinand on June 28, 1914 by a Serbian nationalist has set off a crisis in Europe. Since the Congress of Vienna in 1815, peace had largely prevailed among the Great Powers, preserved through international conferences and a delicate balance of power. Now, however, interlocking alliances are threatening to plunge Europe into war, as Austria-Hungry is threatening war against Serbia. Germany is allied with Austria-Hungary,...
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History