character: Austria-Hungary
topic: Alliance with Germany against Serbia
grade: 9
subject: History
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character: Germany
topic: Support for Austria-Hungary in World War I
grade: 9
subject: History
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character: Serbia
topic: Conflict with Austria-Hungary leading to World War I
grade: 9
subject: History
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character: Otto von Bismarck
topic: Key architect of the alliances in pre-World War I Europe
grade: 9
subject: History
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