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Japanese Empire of Japan Air Force bombs the Military harbor of Pearl Harbor, Hawaii in the morning hours (Note: The state of Hawaii was not joined to the U.S. until 1959).
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The United States and Great Britain declares war on Japan. Meanwhile, The japanese empire lands on Singapore and invades Thailand.
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China declares war on Japan.
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Japan continues to invade different countries, including The Phillipines, and seize Guam.
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Japan invades Burma.
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The first Japanese merchant ship is sunk by a U.S. Submarine.
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Japan invades British Borneo.
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U.S. Marines invade Bougainville in the Solomon Islands.
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U.S. Sixth Army invades Leyte in the Philippines.
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First Atomic Bomb dropped on Hiroshima from a B-29 flown by Col. Paul Tibbets.