Burmese–Siamese War (1785–86)

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Burmese–Siamese War (1785–1786)
Part of the Burmese–Siamese wars
Date January 1785 – January 1786
Location Southern and western Siam, Lan Na
Result Siamese victory
Siam consolidates control of Chiang Mai, and gains control of Chiang Saen
Flag of the Alaungpaya Dynasty of Myanmar.svg Konbaung Dynasty (Burma) Flag of Thailand (1782).svg Rattanakosin Kingdom (Siam)
Commanders and leaders
Flag of the Alaungpaya Dynasty of Myanmar.svg Bodawpaya
Flag of the Alaungpaya Dynasty of Myanmar.svg Minkhaung Kyaw
Flag of Thailand (1782).svg Rama I
Flag of Thailand (1782).svg Maha Sura Singhanat
Flag of Thailand (1782).svg Anurak Devesh
Units involved

Flag of the Alaungpaya Dynasty of Myanmar.svg Royal Burmese Army including:

Flag of the Alaungpaya Dynasty of Myanmar.svg Shan regiments
Flag of the Alaungpaya Dynasty of Myanmar.svg Mon regiments
Flag of Thailand (1782).svg Royal Siamese Army
144,000[1][2] 70,000
Casualties and losses
~70,000 ~15,000

The Burmese–Siamese War (1785–1786), known as the Nine Armies' Wars in Siamese history because the Burmese came in nine armies, was fought between the Konbaung dynasty of Burma and the Chakri dynasty of resurgent Siam (Thailand).


Northern theatre[edit]

King Bodawpaya of Burma pursued an ambitious campaign to expand his dominions into the lands of the former Ayutthaya Kingdom. His armies attacked Lanna in northern Siam, where Kawila, Prince of Lampang, put up a brave fight and delayed the Burmese advance, all the while waiting for reinforcements from Bangkok. When Phitsanulok was captured, Anurak Devesh the Rear Palace, and Rama I himself led Siamese forces to the north. The Siamese relieved Lampang from the Burmese siege.

Southern theatre[edit]

In the south, Bodawpaya lie waiting at Chedi Sam Ong. The Front Palace (Maha Sura Singhanat) led his troops to the south the counter-attack the Burmese that came from Ranong through Nakhon Si Thammarat — the engagements occurred at Kanchanaburi. The Burmese also attacked Thalang (Phuket), where to governor had just died. Chan, wife of the governor, and her sister Mook gathered people to defend Thalang against the Burmese. Today, Chan and Mook are revered as the two heroines, Thao Thepkrasattri and Thao Seesunthon.

The Burmese proceeded to capture Songkhla. Upon hearing the news, the governors of Phatthalung Province fled. However, a monk named Phra Maha headed a force of villagers against the Burmese, his campaign was also successful. Phra Maha was later raised to Phraya Thukkharat by Rama I.[3]

Tha Din Daeng campaign[edit]

As his armies were destroyed, Bodawpaya retreated, only to renew attacks the next year (1786). Bodawpaya, this time, didn’t divide his troops but instead formed into single army. Bodawpaya passed through the Chedi Sam Ong and settled in Ta Din Dang. The Front Palace marched the Siamese forces to face Bodawpaya. The fighting was very short and Bodawpaya was quickly defeated. This short war was called “Ta Din Dang campaign”.

The campaign is commemorated by a park established by the Royal Thai Army 40 kilometres (25 mi) from the town of Kanchanaburi.[4]


  1. ^ http://www.m-culture.go.th/detail_page.php?sub_id=525
  2. ^ http://www.unigang.com/Article/8641
  3. ^ "Phraya Thukkharat (Chuai) Monument". Thailand Travel Information. 2TourThailand.com. August 15, 2011. Retrieved August 15, 2011. Later, he left the monkhood and was royally appointed as Phraya Thukkharat in charge of official duties as an assistant to the city ruler. 
  4. ^ "Destination Guide > Kanchanaburi > Attractions". TourismThailand.org. Archived from the original on 2007-08-15. Retrieved 2007-09-02.