Tha Din Daeng campaign

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Tha Din Daeng campaign
Part of the Burmese–Siamese War (1785–86)
Tha Din Daeng, Kanchanaburi Province
Result Siamese Victory
Flag of the Alaungpaya Dynasty of Myanmar.svg Burmese Kingdom Flag of Thailand (1782).svg Rattanakosin Kingdom (Siam)
Commanders and leaders
Flag of the Alaungpaya Dynasty of Myanmar.svg Bodawpaya Flag of Thailand (1782).svg Rama I
Flag of Thailand (1782).svg Maha Sura Singhanat
36,000 30,000

Tha Din Daeng campaign was a short conflict, occurring in 1786 in Tha Din Daeng, in Kanchanaburi Province, the largest of the western provinces (changwat) of Thailand. The belligerents were King Bodawpaya of the Burmese Konbaung Dynasty, against Phraphutthayotfa Chulalok and Maha Sura Singhanat of the Rattanakosin Kingdom.

As his armies were destroyed, Bodawpaya retreated, only to renew attacks next year. Bodawpaya, this time, did not divide his troops but instead formed into single army. Bodawpaya passed through the Chedi Sam Ong and settled in Tha Din Daeng. Maha Sura Singhanat marched the Siamese forces to face Bodawpaya. The fighting was very short and Bodawpaya was quickly defeated.

Military Campaigns[edit]


After many defeats in early 1786, King Bodawpaya retreated to Martaban. However, he retained some of his forces on the Tenasserim Coast waiting for the new campaigns. The traditional wars were usually conducted in dry season as in the rainy seasons the lands were swampy and ravaged with diseases, unsuitable for marching and encampment. King Bodawpaya ordered the Burmese forces at Tavoy to retreat to Martaban under the command of Minhla Sithu, while Maha Thiri Thihathu was ordered to retreat from Mergui to Tavoy. The king then marched back to Dagon where he worshipped the famous Shwedagon Pagoda[1] and returned to Ava. The Burmese armies stationed at Martanban and Tavoy, waiting for the rainy season to be over to conduct new invasions of Siam.

In September 1786, King Bodawpaya resumed his Siamese campaigns. He sent his eldest son and heir, Prince Thado Minsaw or Prince Nanda Kyawdin (known in Thai sources as Einshe Maha Uparaja) to Martaban to organize the new invasion of Siam.


The "Mon Wooden Bridge" in Sangkhla Buri District, Kanchanaburi Province was the site of Samsop, one of the battle sites of Tha Din Daeng campaign.

Prince Nanda Kyawdin or Einshe Uparaja took the lead of the army of 50,000 men at Martaban, with Wundauk Nemyo Kyawzwa as his Sitke. King Bodawpaya made sure that the provision shortage would not hinder the campaign again. He ordered the grain rations of Arakan and the whole Lower Burma to be sent to the frontlines. The Burmese also established strong supply lines with supply outposts stationed all along the way from Martaban to Kanchanaburi. Unlike the previous invasion, the Burmese concentrate the forces in single direction at Kanchanaburi instead of dispersing the forces in many directions. Prince Nanda Kyawdin sent Minhla Sithu, the Burmese veteran who had been defeated by the Siamese at the Battle of Latya seven months earlier, to lead the vanguard of 30,000 ahead into Kanchanaburi.

Emboldened by their successes earlier in the year, the Siamese were much more confident in their responses to the Burmese invasion. Both King Rama I and his brother Prince Maha Sura Singhanat marched to meet the Burmese at Kanchanaburi.

  • Prince Maha Sura Singhanat, along with his two generals Phraya Kalahom Ratchasena and Phraya Chasaenyakorn and Chao Phraya Rattanapipit the Samuha Nayok, marched ahead the army of 30,000 men.
  • King Rama I himself and his nephew Prince Anurak Devesh of the Rear Palace led the royal army of 30,000 men.

The Battle (March 1787)[edit]

The Burmese armies entered Kanchaburi through the Three Padodas Pass or Payathonzu. Minha Sithu divided his forces to station at Tha Dindaeng and Samsop, both in Sangkhlaburi, Kanchanaburi. Prince Nanda Kyawdin stayed at the Three Padogas. Prince Maha Sura Singhanat marched to Sai Yok in Kanchaburi and encamped. He ordered his generals Phraya Kalahom Ratchasena and Phraya Chasaenyakorn to march ahead as vanguard to Sangkhlaburi. When King Rama I had reached Sai Yok, Prince Maha Sura Singhanat moved to Sangkhlaburi. The Siamese armies concealed[1] their movements in the jungles to inflict the surprise attack on the Burmese.

After long marches, the two sides finally met at Tha Dindaeng and Samsop in March 1787. The fighting was very short and Minhla Sithu was quickly defeated, again for the second time. This short war was called “Tha Din Daeng campaign”. Minhla Sithu retreated back to Payathonzu. Prince Nanda Kyawdin, upon seeing the defeat of Minhla Sithu, also retreated back to Martaban. The Siamese forces burnt all the Burmese grain supplies in Kanchanaburi

The campaign is commemorated by a park established by the Royal Thai Army 40 kilometres (25 mi) from the town of Kanchanaburi.[2]

See also[edit]


  1. ^ a b Phraison Salarak (Thien Subindu), Luang (July 25, 1919). Intercourse between Burma and Siam as recorded in Hmannan Yazawindawgyi. Bangkok.
  2. ^ "The Nine-Army Battle Historical Park". Tourism Authority of Thailand (TAT). Retrieved 11 September 2016.