最終更新日：2024/07/29
The assassination of Archduke Franz Ferdinand was the casus belli for World War I.
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The assassination of Archduke Franz Ferdinand was the casus belli for World War I.
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The assassination of Archduke Franz Ferdinand was the casus belli for World War I.
The assassination of Archduke Franz Ferdinand was the casus belli for World War I.
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