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| 2. Thailand |
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(See 1941, Dec. 21)| |
| 1941, Dec. 21 |
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| Siam concluded a ten-year treaty of alliance with Japan. | 1 |
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| 1942, Jan. 25 |
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| Siam declared war on Great Britain and the U.S. | 2 |
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| 1946, Jan. 1 |
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| The state of war between Great Britain and Siam was officially ended. The U.S. resumed diplomatic relations with Siam on Jan. 4. | 3 |
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| June 9 |
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| King Ananda Mahidol was found dead from a bullet wound. His brother, Phumiphol Adulyadet, succeeded him. | 4 |
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| Oct. 13 |
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| The Siamese government accepted the UN verdict to return to Indochina the provinces acquired in 1941. | 5 |
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