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  War was declared between China and Japan declared, for the control over Korea.
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  China surrendered due to the Japanese's more modernized military.
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  An alliance between Japan and Britain to assist one another against Russia expanding.
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  War was declared between Russia and Japan for Korea and Manchuria.
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  Japan's victory over Russia made the first Asian power to defeat a European power.
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  Korea is officially annexed.
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  A staged bombing of the Mukden railway, claimed that the Chinese did it, so they can continue their territorial expansion (attack on China) as a form of retaliation.
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  The creation of the "independent" state of Manchukuo. China's last emperor was made the "ruler" of Manchukuo. It wasn't actually independent as it was actually controlled by Japan.
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  Signed by Germany and Japan. (Other countries joined later.)
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  War was again declared between China and Japan.
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  The Japanese attacked the US by bombing Pearl Harbor, which led to a war declared and US joining the Allies