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Battle of Rạch Gầm-Xoài Mút

From Wikipedia, the free encyclopedia

Battle of Rạch Gầm-Xoài Mút
Part of Tây Sơn wars and Siamese–Vietnamese Wars
Tượng đài Rạch Gầm-Xoài Mút.JPG

Vietnamese monument of the battle
DateJanuary 19–20, 1785
Rạch Gầm River and Xoài Mút River
(near Mỹ Tho River, in present-day Tiền Giang Province, southern Vietnam)
Result Decisive Tây Sơn Victory
Tây Sơn Rattanakosin Kingdom (Siam)
Nguyễn lords
Hà Tiên Protectorate
Commanders and leaders
Nguyễn Huệ[note 1]
Nguyễn Lữ[note 1]
Trương Văn Đa
Đặng Văn Trấn
Krom Luang Thepharirak[4][5]
Phraya Wichitnarong[4][5]
Phraya Thatsada[4][5]
Chaophraya Aphaiphubet (Baen)[4][5]
[note 2]
Nguyễn Ánh[note 3]
Lê Văn Duyệt
Lê Văn Quân
Nguyễn Văn Thành
Nguyễn Văn Oai 
Mạc Tử Sinh
Units involved
Tây Sơn Army Siamese Army
Siamese Navy
Nguyễn Ánh's forces
20,000 – 40,000 Siamese-Cambodian: 20,000 sailors and marines, 30,000 infantry[7]
300 warships[7]
3,000-4,000 Nguyễn Ánh's forces
Casualties and losses
Unknown warships: near annihilation[7][8][9]
Siamese-Cambodian soldiers: 40,000+ killed
Nguyễn forces: 3,200 killed

The Battle of Rạch Gầm-Xoài Mút (Vietnamese: Trận Rạch Gầm – Xoài Mút, Thai: การรบที่ซากเกิ่ม-สว่ายมุต) was fought between the Vietnamese Tây Sơn forces and an army of Siam in present-day Tiền Giang Province on January 20, 1785. It is considered one of the greatest victories in Vietnamese history.


In the late 18th century, a rebellion broke out in southern Vietnam. The Nguyễn lords, the hereditary rulers in southern Vietnam, were overthrown by the Tây Sơn brothers: Nguyễn Nhạc, Nguyễn Huệ and Nguyễn Lữ[note 1] in 1777. With the help of supporters, Nguyễn Ánh[note 3], a nephew of the last Nguyễn lord, reconquered Gia Định (present day Hồ Chí Minh City) as Đại nguyên súy Nhiếp quốc chính ("Commander in chief and regent") and later proclaimed himself Nguyễn Vương ("Nguyễn king").

In 1783 the Tây Sơn rebel forces recaptured Gia Định. Nguyễn Ánh had to flee to Phú Quốc island, while his army was attacked and defeated by a Tây Sơn army. One of Ánh's generals, Châu Văn Tiếp, was sent to Siam to make a request for aid. According to Vietnamese records, an army under the Siamese general Thát Xỉ Đa (撻齒多, also known as Chất Si Đa) arrived in Hà Tiên the next year. Nguyễn Ánh retreated to Siam with him, where they met king Rama I, who promised that Siam would support Ánh's struggle for dominance in Vietnam.[10]

There was an episode only mentioned in the Royal Thai Chronicles. In 1783, a Siamese army under Phraya Nakhonsawan (พระยานครสวรรค์) had marched to Cambodia to come to the aid of Nguyễn Ánh. There they clashed with Vietnamese forces of Ong Tin Wuang (องติเวือง, Nguyễn Lữ[note 1]) in Sadec (Sa Đéc) and captured warships, prisoners and various types of weapons, yet later returned them to the Tay Son. A number of generals, Phraya Wichitnarong (พระยาวิชิตณรงค์) among them, disapproved the decision and secretly reported to Bangkok. Charged with treason Phraya Nakhonsawan and 12 men were executed in the graveyard of Photharam Temple in Ayutthaya.[11][3]

Siamese invasion

Nguyễn Ánh and the Siamese planned a decisive attack on the Tay Son. According to Vietnamese records, in April 1784, an army of 30,000 troops under the Siamese generals Lục Côn and Sa Uyển was dispatched to Cambodia and prepare to attack Gia Dinh. Another force under the Cambodian minister Chiêu Thùy Biện also prepared for battle. On July 25, a Siamese fleet of 300 warships and 20,000 men sailed for Gia Dinh. The contingent was led by senior commanders of the fleet, Chiêu Tăng, a nephew of the Siamese king, as the chief commander and Chiêu Sương, as the vanguard.

According to the Royal Thai Chronicles, in March 1784, a fleet with five thousand men under Chao Fa Krom Luang Thepharirak was dispatched to attack and recapture Saigon for Nguyễn Ánh. Phraya Wichitnarong lead the Siamese infantry to Cambodia and took command of the Cambodian army. Chaophraya Aphaiphubet recruited another five thousand soldiers to join the Siamese troops.[3][4]

The Siamese-Cambodian infantry contingents under Phraya Wichitnarong attacked Sa Đéc (Piamchopsadaek), where they defeated several Tay Son detachments. Phraya Wichitnarong then marched toward to Ba Lai (Piambarai) and attacked a Tay Son army in Ban Payung (Ba Giồng).[3][4]

Meanwhile, the Siamese-Nguyễn fleet under Krom Luang Thepharirak and Nguyễn Ánh finally landed in Banteay Meas (Mang Khảm, a place belonging to Hà Tiên during that time). There, an army under Phraya Rachasethi (พระยาราชาเศรษฐี) and Phraya Thatsada (พระยาทัศดา) was to reinforce them. The Siamese-Nguyễn fleet sailed to the Bassac River (sông Hậu in Vietnamese) and stopped in Trà Tân (Wamanao, a place near Mỹ Tho).[3][4]

After several victories, the Siamese generals began to look down upon the Tây Sơn army and treat Nguyễn Ánh without respect. Siamese soldiers committed atrocities on Việtnamese settlers.[7] In a letter to French preacher J. Liot, Nguyễn Ánh complained about the Siamese atrocities, who robbed, raped and slaughtered unscrupulously. As a consequence, more and more local farmers turned to support the Tây Sơn.[12]

However, the Siamese invaders met increasing resistance from the Tây Sơn army. Trương Văn Đa fought bravely against the Siamese invaders. On November 30, he defeated the Siamese-Nguyễn fleet, killed Châu Văn Tiếp (the highest commander of the Nguyễn fleet) and wounded the Siamese general Thát Xỉ Đa at the Mân Thít River. Lê Văn Quân succeeded Tiếp as the highest commander of the Nguyễn fleet.

By the end of 1784, the Siamese had taken Rạch Giá, Trấn Giang (Cần Thơ), Ba Thắc (Srok Pra-sak, Sóc Trăng), Trà Ôn, Sa Đéc, Mân Thít (or Mang thít, Man Thiết), and controlled Hà Tiên, An Giang and Vĩnh Long. But important places, including Mỹ Tho and Gia Định, were still controlled by the Tây Sơn army. Realizing he was unable to repulse the enemy, Trương Văn Đa sent Đặng Văn Trấn to Quy Nhơn for help.[13]


Weapons remained after the battle
Weapons remained after the battle

The Tây Sơn reinforcements led by Nguyễn Huệ[note 1] marched south from Quy Nhon and arrived in Cochinchina territory around January 1785. Huệ set up his headquarter in Mỹ Tho, not far from Trà Tân, the headquarter of the Siamese troops.

Small groups of Tây Sơn navy harassed Siamese fortified points during high tide and withdrew during low tide. They gathered intelligence about the Siamese navy and pretended to be vulnerable. After many victories, the Siamese army and naval forces were overconfident.[9] Nguyễn Huệ noticed it, and decided to avoid a direct attack on a strong Siamese force. He sent a small naval force, under a banner of truce, to offer to parley with the Siamese.[7] Huệ gave many treasures to Krom Luang Thepharirak (Chiêu Tăng), and requested him not to support Nguyễn Ánh. Huệ also promised that the Tây Sơn would pay tribute to Siam. Thepharirak received these presents.

During the negotiations, Siamese soldiers were invited to visit the warships of the Tây Sơn navy. Nguyễn Huệ showed sophisticated weapons to them, and gave them many treasures before they returned. Hearing that, Nguyễn Ánh suspected the Siamese to have sinister intentions. Thepharirak had to explain to Nguyễn Ánh that it was just a stratagem.

Thepharirak was confident that Nguyễn Huệ was waiting for the results of negotiations, because he saw Tây Sơn warships withdrawing to Mỹ Tho orderly. Thepharirak planned a surprise attack on the Tây Sơn navy. The date was fixed on January 19, 1785 (December 9 of the year Giáp Thìn in Vietnamese lunar calendar), and notified Nguyễn Ánh. Ánh had a presentiment that the Siamese navy would be defeated. He sent Mạc Tử Sinh to Trấn Giang (Cần Thơ) to prepare a boat, if defeated, they were able to flee.

However, Thepharirak was overconfident, actually it was a trap set up by Huệ. Nguyễn Huệ, anticipating a move from the Siamese, had secretly positioned his infantry and artillery along the Mekong river (Rạch Gầm-Xoài Mút area of present-day Tiền Giang province), and on some islands in the middle, facing other troops on the northern banks with naval reinforcements on both sides of the infantry positions.[7]

On the morning of January 20, 1785, Chiêu Tăng (Thepharirak) and the Siamese main forces left Trà Tân to attack Mỹ Tho, where Hue's headquarter was located. Only a small group of infantry led by Sa Uyển was left in Sa Đéc. The navy of the Nguyễn lord led by Lê Văn Quân was ordered to take the lead. When the front navy reached Rạch Gầm River, and the rear navy reached Xoài Mút River, Nguyễn Huệ's ships dashed into the unprepared Siamese troops, preventing their advance or retreat. In the meanwhile, the Tây Sơn artillery opened fire.[14] One of the secret weapons of the Tây Sơn force was the Hỏa Hổ Thần Công (Flaming Tiger Cannon), which could release a stream of fire at a very long range.[15]

The battle ended with a near annihilation of the Siamese force, as according to Vietnamese sources all the ships of the Siamese navy were destroyed.[14] Chiêu Tăng (Thepharirak) and Chiêu Sương landed in the north bank of Mỹ Tho River, then at Quang Hóa, through Cambodia, and arrived in Bangkok in March 1785. Only 2,000 to 3,000 men of the original expedition escaped.[14] Other survivors stole the boats of civilians and fled to Cambodia. On February 4, 1785, Rama I received the information that the Siamese navy was defeated. He sent a dozen ships to rescue Siamese soldiers. There were only ten thousand survivors.

When his navy was nearly annihilated Nguyễn Ánh and a dozen men escaped to Trấn Giang (Cần Thơ) where they met Mạc Tử Sinh and went to Hà Tiên on three ships. In Hà Tiên, Nguyễn Ánh gathered the remnants of his navy and fled to Poulo Panjang, then to Ko Kut and finally arrived in Bangkok, where he sought refuge until August 1787.[16][17]

See also


  1. ^ a b c d e The Tây Sơn brothers were referred to as Ong Yak (องอยาก), Ong Bai (องบาย) and Ong Dam (องดาม) in Siamese royal records respectively.[1] Siamese records confused Nguyễn Huệ with Nguyễn Lữ.[2][3]
  2. ^ Siamese and Cambodian generals who got involved in the battle were referred to as Chiêu Tăng (昭曾), Chiêu Sương (昭霜), Lục Côn (六昆), Sa Uyển (沙苑), Chiêu Thùy Biện (昭錘卞) and Thát Xỉ Đa (撻齒多) in historical records of Vietnam. Their real names were unknown.
  3. ^ a b Nguyễn Ánh was referred to as Ong Chiang Su[2] (Thai: องเชียงสือ RTGSOng Chiang Sue[6]) in Siamese royal records; Ong Chiang Su derived from the Vietnamese word Ông thượng thư ("Sir chief of staff")[2][3]
  1. ^ เจ้าพระยาทิพากรวงศ์ (ขำ บุนนาค). "11. เรื่องพงศาวดารญวน". พระราชพงศาวดารกรุงรัตนโกสินทร์ รัชกาลที่ 1.
  2. ^ a b c Tương quan Xiêm – Việt cuối thế kỷ 18 Archived December 3, 2018, at the Wayback Machine page 60
  3. ^ a b c d e f Tương quan Xiêm – Việt cuối thế kỉ XVIII
  4. ^ a b c d e f g เจ้าพระยาทิพากรวงศ์ (ขำ บุนนาค) (January 20, 2017). "19. ทัพกรมหลวงเทพหริรักษ์ไปตีเมืองไซ่ง่อน". พระราชพงศาวดารกรุงรัตนโกสินทร์ รัชกาลที่ 1.
  5. ^ a b c d Nguyễn Duy Chính, "Tương quan Xiêm-Việt cuối thế kỷ XVIII", dẫn theo Thadeus và Chadin Flood (dịch và hiệu đính), The Dynastic Chronicles, Bangkok Era, The First Reign, Chaophraya Thiphakorawong Edition, [Vol. I]: Text. Tokyo: The Centre for East Asian Cultural Studies, 1978. page 61
  6. ^ ทิพากรวงศมหาโกษาธิบดี (ขำ บุนนาค), เจ้าพระยา (2006). พระราชพงศาวดารกรุงรัตนโกสินทร์ รัชกาลที่ 3. กรุงเทพฯ: ไทยควอลิตี้บุ๊คส์. p. 168.
  7. ^ a b c d e f Tucker, p. 15
  8. ^ Clodfelter, p. 7
  9. ^ a b Dutton, p. 45–46
  10. ^ Việt Nam sử lược, Quyển II/Tự chủ thời đại/Chương VIII
  11. ^ เจ้าพระยาทิพากรวงศ์ (ขำ บุนนาค) (January 20, 2017). "16. ทัพพระยานครสวรรค์ไปตีเมืองไซ่ง่อน". พระราชพงศาวดารกรุงรัตนโกสินทร์ รัชกาลที่ 1.
  12. ^ Nguyễn Khắc Thuần dịch (Danh tướng Việt Nam [tập 3], tr. 188). Tương tự, sách Hoàng Việt hưng long chí chép: Quân Xiêm tàn bạo, đi đến đâu đều cướp bóc, bắt bớ; nên dân chúng ta thán oán ghét(tr. 121).
  13. ^ "Tay Son Uprising (1771-1802) In Vietnam: Mandated By Heaven?". Research Gate. Retrieved February 7, 2019.
  14. ^ a b c Tucker, p.16
  15. ^ Spencer C. Tucker (December 23, 2009). A Global Chronology of Conflict: From the Ancient World to the Modern Middle East [6 volumes]: From the Ancient World to the Modern Middle East. ABC-CLIO. pp. 958–. ISBN 978-1-85109-672-5.
  16. ^ Spencer C. Tucker (May 20, 2011). The Encyclopedia of the Vietnam War: A Political, Social, and Military History, 2nd Edition [4 volumes]: A Political, Social, and Military History. ABC-CLIO. pp. 824–. ISBN 978-1-85109-961-0.
  17. ^ Ha Thanh (January 27, 2015). "The art of combining naval - ground warfare in the battle of Rach Gam – Xoai Mut (1875)". National Defence Journal. Retrieved February 9, 2019.


This page was last edited on 22 December 2020, at 17:15
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