Battle of Sasu
Part of Goguryeo–Tang War

Map showing the invasion of Goguryeo by the Tang forces from 645 to 668 AD
DateFebruary 21, 662
Location
Sasu River, Goguryeo (probably modern-day Pothong River, present-day North Korea)
Result Goguryeo victory
Belligerents
Tang China Goguryeo Korea
Commanders and leaders
Pang Xiaotai † Yeon Gaesomun
Strength
100,000 100,000
Casualties and losses
Entire force Unknown

The Battle of the Sasu River, also known as Battle of Sasu (Korean: 사수 전투 Sasu Jeontu) (Chinese: 蛇水之战 Shéshuǐ Zhīzhàn) was a battle between Tang Chinese and Goguryeo Korean forces that took place in 662 AD. An Chinese army, mostly consisting of Nanman soldiers from Lingnan, were led by general Pang Xiaotai while the Goguryeo army was led by the generalissimo Yeon Gaesomun. The Goguryeo army won the battle and the Tang army was crushed. Pang Xiaotai was an ethnic minority Nanman chief from Guangxi who had previously rebelled against the Tang dynasty but was defeated by the Tang and he and his people were forcibly conscripted by the Tang into fighting against Goguryeo.[1][2][3][4][5][6][7]

Prelude

The Emperor of China, Gaozhong of Tang, has succeeded his father Taizhong on the throne and with it his dreams of the conquest of the Korean kingdom of Goguryeo, an attempt he have failed throughout his reign.[8] He resumed the conquest in 660 and sent 350,000 soldiers for the task,[9] along with assistance in supplies and provisions from another Korean kingdom, Silla, with which he was allied with.[9] The Chinese invasion army was divided into different forces, with one force led by admiral Su Dingfang consisting of 130,000 men[10] on several thousand ships sailing across the Yellow Sea via several thousand ships from Shandong peninsula to the Korean kingdom of Baekje which along with Silla they jointly conquered, while another one is led by generals Pang Xiotai and Liu Demin marching via Liaodong Peninsula along the old Okjeo road heading to the Goguryeo capital city of Pyongyang with 100,000 soldiers from Lingnan.[11]

The winter of late 661 was particularly harsh for the invading Chinese forces, resulting to them putting onto winter quarters in any nearest occupied Goguryeo settlement. What was supposed to be a pincer action targeting Pyongyang did not go as planned, as much of the army that conquered Baekje to the south was busy dealing with restorationist rebels led by Gwisil Boksin, now made worse by the intervention of Japan whom they sent the exiled Baekje prince Buyeo Pung back to lead the revolt.[12], while the now much reduced army of Su Dingfang were busy besieging Pyongyang, unable to overcome its defenses in accounts of the harsh cold weather and their lesser numbers than needed so much so that the northern boundaries of the city remained open. Making matters worse is the revolt of the Tiele in the western edge of the Chinese empire which forced the Tang emperor to commit some of his forces already invading Goguryeo to crush it, thereby reducing their numbers in the front.[13] With this, known via scouts and messengers, came the opportunity for the Goguryeo dictator Yeon Gaesomun to gather all of the kingdom's remaining forces to the capital Pyongyang to wipe Pang Xiotai's force stranded nearby the Sasu River which is likely present-day Botong River to the north, before they could unite with Su Dingfang's force to the south and completely encircle the still-besieged Pyongyang.

Battle

In 21 February 662, Yeon Gaesomun led the Goguryeo army intercepted the Tang army at the Sasu River, annihilating it.[14] Its general Pang Xiaotai and all his 13 sons were killed.[15] With the northern front secure, Yeon Gaesomun went back to relieve Pyongyang. Coupled with harsh snowstorms, Su Dingfang then withdrew his forces, ending the siege.[16]

Aftermath

Goguryeo had little time to celebrate the victory at Sasu, as it was ravaged by decades of continuous warfare.[17] Yeon Gaesomun died four years later, and six years later Goguryeo was later conquered by Tang China.

References

  1. ↑ 王象之编著、赵一生点校．《舆地纪胜》：浙江古籍出版社，2012年：第2764页
  2. ↑ 《旧唐书》卷八二，列传第三二，《许敬宗传》。
  3. ↑ 《新唐书》卷一《本纪第一·高祖》：“（武德六年四月）丁卯，南州刺史庞孝泰反，陷南越州。”
  4. ↑ 《新唐书》卷二二○，列传第一四五，《东夷传·高丽》：帝幸洛阳，乃以张亮为平壤道行军大总管，常何、左难当副之，冉仁德、刘英行、张文干、庞孝泰、程名振为总管，帅江、吴、京、洛募兵凡四万，吴艘五百，泛海趋平壤。
  5. ↑ 《册府元龟》卷986：以左武卫大将军蘇定方为神丘道行军大总管，率左骁卫将军刘伯英、右武卫将军冯士翽、左骁卫将军庞孝泰等，并发新罗之众，以讨百济。
  6. ↑ 《册府元龟》卷373：庞孝泰为左骁卫将军，高宗遣将征高丽，孝泰为沃沮道总管。时孝泰率岭南水战之士军於蛇水之上，高丽盖蘇文益兵击之，孝泰大败。或劝突围就刘伯英、曹继叔之营，孝泰曰：“我伏事国家两代，过蒙恩遇，高丽不灭，吾必不还，伯英等何必救我？又我将乡里子弟五千余人，今并死尽，岂一身自求生邪？”贼肉薄攻之，死者累万，箭如蝟毛，遂与其子一十三人皆死之。
  7. ↑ 《资治通鉴》卷200：戊寅，左骁卫将军白州刺史沃沮道总管庞孝泰，与高丽战于蛇水之上，军败，与其子十三人皆战死。
  8. ↑ Walker, Hugh Dyson (20 November 2012). East Asia: A New History. AuthorHouse. p. 161. ISBN 9781477265178. Retrieved 4 November 2016.
  9. 1 2 Kim 2005, 40.Kim, Djun Kil (2005). The history of Korea (1st ed.). Westport: Greenwood Press. p. 40. ISBN 9780313038532.
  10. ↑ Lee, Kenneth B. (1997). Korea and East Asia: The story of a phoenix. Westport: Praeger. p. 17. ISBN 9780275958237.
  11. ↑ "大唐不良人(庚新)： 第三十章 程务挺_点阅小说网".
  12. ↑ Farris, William Wayne (1985). Population, disease, and land in early Japan, 645-900. Cambridge: Harvard University Press. p. 10. ISBN 9780674690059.
  13. ↑ Duan, "Dingling, Gaoju and Tiele", p. 472–475.
  14. ↑ Graff, David (2 September 2003). Medieval Chinese Warfare 300-900. Routledge. p. 199. ISBN 9781134553532. Retrieved 6 November 2016.
  15. ↑ 옆으로 읽는 동아시아 삼국지 1 (in Korean). EASTASIA. 2 September 2013. ISBN 9788962620726. Retrieved 5 November 2016.
  16. ↑ Lee, Kenneth B. (1997). Korea and East Asia: The story of a phoenix. Westport: Praeger. p. 18. ISBN 9780275958237.
  17. ↑ Lee, Ki-Baik (1984). A New History of Korea. Cambridge, Massachusetts: Harvard University Press. p. 67. ISBN 067461576X.
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