Siamese–Vietnamese War (1771–1773)
part of the Siamese-Vietnamese Wars
The Siamese–Vietnamese War (1771–1773) was a war between Siam (modern Thailand) of the Thonburi Period in the reign of King Taksin and the Nguyễn Lords of Cochinchina or Southern Vietnam. The war also involved Cambodia and the Hà Tiên polity, which were allies of the Nguyen Lord.
Background
After the Fall of the Ming dynasty, a Cantonese named Mo Jiu or Mạc Cửu (鄚玖) migrated from Leizhou, Guangdong Province to settle in the Cambodian coastal port town of Bantaey Meas (Khmer:បន្ទាយមាស) or modern Hà Tiên in 1671. Banteay Maes was populated by the native Cambodians and the Chinese traders. Mạc Cửu ran a local gambling den in Banteay Maes and managed to propel himself to the riches. He was granted the rank of Oknha from the Cambodian king for his wealth. Mạc Cửu and his Cantonese followers built a Chinese-style town of Hà Tiên. In 1707, Mạc Cửu submitted to become a subordinate of the Nguyen Lord Nguyễn Phúc Chu and was awarded with the title Cửu Ngọc hầu, leading to the foundation of the Hà Tiên polity. Mạc Cửu died in 1735 and was succeeded by his son Mạc Thiên Tứ (also known as Mo Shilin 莫士麟) as the ruler of Hà Tiên. Under the rule of Mạc Thiên Tứ, Hà Tiên rose to become the commercial and political center of the region.
“Siamese–Vietnamese War (1771–1773)” enters the record as part of the Siamese-Vietnamese Wars. Crown Archives preserves that source wording while asking what Siamese, Vietnamese and part can confirm, complicate or overturn.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 22, 2026. The linked authority identifier is Q2280725. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1771, 1773, 1671 and 1707.
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This entry incorporates text from “Siamese–Vietnamese War (1771–1773)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.