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Which treaty formally ended the Russo–Japanese War in 1905? | QuestionStock

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Which treaty formally ended the Russo–Japanese War in 1905?

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Correct answer: A. Treaty of Portsmouth

Explanation: The Treaty of Portsmouth, mediated by U.S. President Theodore Roosevelt and signed in September 1905, ended the Russo–Japanese War; it granted Japan territorial gains and recognition of its interests in Korea.

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Created 2026-02-20T19:41:58.105Z. Updated 2026-02-20T19:41:58.105Z.