This article is about the specific polity Kingdom of Thailand and therefore only includes events related to its territory and not to its possessions or colonies. If you are interested in the possession, this is the link to the article about the nation which includes all possessions as well as all the different incarnations of the nation.
If you are looking for the page with the statistics about this polity you can find it here:All Statistics
Is a country in Southeast Asia, located at the centre of the Indochinese Peninsula. Siam exist as a country since the Ayutthaya Kingdom (1351-1767). The modern Kingdom of Thailand was established after the Siamese revolution of 1932.
Establishment
June 1932: The 1932 Siamese revolution resulted in a nearly-bloodless transition of Siam into a constitutional monarchy system of government.
Chronology
Interactive Chronologies with maps are available in the section Changes Navigation
Was a global conflict that lasted from 1939 to 1945 (it started sooner in certain regions) between the Axis Powers (mainly Germany, Japan and Italy) and the Allies (mainly the Soviet Union, the U.S.A., the U.K., China and France). It was the war with more fatalities in history. The war in Asia began when Japan invaded China on July 7, 1937. The war in Europe began when Germany invaded Poland on September 1, 1939. The war ended with the complete defeat of the Axis powers, which were occupied by the Allies.
1.1.World War II (Asia & Pacific)
Was the East Asian, South Asian and Pacific theatre of World War II.
1.1.1.Franco-Thai War
Was fought between Thailand and Vichy France over certain areas of French Indochina.
May 1941: Franco-Thai War: Thai annexation of territories of French Indochina.
May 1941: The Japanese, directly interested in infiltrating the region, brokered a ceasefire with France which became effective at 10.00 on 28 January and forced the French to cede the disputed territories in the treaty signed in Tokyo on 9 May 1941.
1.1.2.Japanese invasion of Thailand
Was the Japanese invasion of Thailand during World War II. Thailand and Japan then formed an alliance making Thailand part of the Axis alliance until the end of World War II.
December 1941: The Japanese 2nd Infantry Battalion of the 143rd Infantry Regiment under Major Kisoyoshi Utsunomiya landed at 03:00 from one troopship, and occupied Prachuap Khiri Khan after having crushed police resistance there.
December 1941: A Japanese infantry company from the 1st Battalion of the 143rd Infantry Regiment landed from one troopship at the coastal village of Ban Don in the early hours of 8 December.
December 1941: Territories conquered by Japan in Thailand by 8 december
December 1941: The Japanese 1st Infantry Battalion of the 143rd Infantry Regiment landed at Chumphon on the morning of 8 December.
December 1941: The Japanese 3rd Battalion of the Imperial Guards Regiment landed at Samut Prakan in the early hours of 8 December.
December 1941: To end the Japanese invasion, Thailand signed an armistice. The Japanese forces left the country but Thailand was forced to become an ally of Japan from 21 December 1941.
1.1.3.Malayan Campaign
Was a military campaign of Japan against British Malaya that ended with the expulsion of the British forces from the area.
December 1941: Japanese troops launched an amphibious assault on the northern coast of Malaya at Kota Bharu.
December 1941: Japanese conquest of Yala.
December 1941: Japanese conquest of Jitra.
December 1941: Japanese conquest of Gurun.
December 1941: Japanese conquest of Sungei Patani.
December 1941: During World War II, Penang was occupied by Japan on December 19, 1941.
1.1.4.Japanese Surrender (World War II)
Were the evacuation of the Japanese forces from occupied territories after the formal surrender of the Empire of Japan.
August 1945: After the dropping of Atomic Bombs on Hiroshima and Nagasaki, Japan accepts the Allied unconditional surrender terms (14 August 1945). Japanese forces leave occupied territories.
September 1945: Thailand returns annexed territories to the United Kingdom.
November 1945: Thailand returns annexed territories to French Indochina.
Selected Sources
British Land and Air Dispositions, 7 December 1941 and Japanese Centrifugal Offensive Dec.1941 - Jan. 1942 . United States Military Academy West Point. Retrieved on March, 26th, 2024 on https://www.westpoint.edu/sites/default/files/inline-images/academics/academic_departments/history/WWII%20Asia/ww2%2520asia%2520map%252007.jpg
Williams, M.H. (1989): United States army in World War II - Special Studies - Chronology 1941-1945, p.551