Battle of Chengpu

Battle of Chengpu
Part of the Spring and Autumn period

Battle of Chengpu
Date632 BC
Location
vicinity of Chenliu, Henan or the southwest of Juancheng County, Shandong
Result Decisive Jin victory
Belligerents
Jin, Qi, Qin, Song Chu, Chen, Cai, Shen, Xi, Wey
Commanders and leaders
Hu Mao, Hu Yan, Xian Zhen, Xi Zhen, Xu Chen, Luan Zhi Ziyu, Zishang, Zixi
Strength
700 chariots (Jin), other parts unknown. Unknown
Casualties and losses
Unknown Unknown, 100 chariots and 1000 warriors captured
Battle of Chengpu
Traditional Chinese城濮之戰
Simplified Chinese城濮之战

The Battle of Chengpu took place in 632 BC between the State of Jin and the State of Chu and its allies during the Spring and Autumn period of Chinese history.[1] It was the first great battle in the protracted conflict between the states of the Yellow River valley, and the states of the Yangtze River valley. The Jin victory confirmed the hegemony of Duke Wen and checked Chu ambitions in the north for at least a generation.[2]

Background

Following the death of Duke Huan of Qi in 643 BC, the state of Chu steadily extended its influence northward, absorbing half a dozen smaller states as its satellites. In 636 BC, Chong'er, a ducal prince of Jin, after spending fifteen years in exile traveling throughout numerous states, came to power as Duke Wen of Jin with the help of Duke Mu of Qin. Duke Wen assumed a position of leadership among the states and instituted numerous domestic reforms.

In the years leading up to 632 BC, conflict between Jin and Chu became increasingly public and was characterised by frequent shifts in alliances between the various small states that lay in a narrow band of land between the two larger states.[2]

King Cheng of Chu struck at the State of Song, the ally of Jin most accessible from the south, in the winter of 633 BCE. In retaliation, an expeditionary force under Duke Wen marched south in the spring of the following year and occupied the States of Wei and Cao, both satellites of Chu. The two sides sought out alliances in the following months. The States of Shen, Xi, Chen and Cai, all immediately contiguous to Chu, sided with King Cheng, as well as the more distant State of Lu.[2]

Prelude

As promised by Duke Wen to King Cheng during his exile in Chu, the Jin army retired "three days march" (退避三舍) (45 km) before camping on the plain of Chengpu on the border of Wei and Cao, awaiting a decisive battle The retirement also linked the Jin forces up with Qi and Qin reinforcements.

Only the central force of the Chu under Prime Minister Ziyu (子玉) was made up entirely of Chu troops. The left wing under Zixi incorporated soldiers from Chu's close satellites Shen and Xi. The right wing under Zishang comprised completely a separate detachment from the armies of Chen and Cai, perhaps numbering around a third (?) of the entire force.

The Jin force was expanded before the expedition from two armies into three: the upper, the central and the lower; these three were then regrouped into wings before the battle: the upper army at the right wing under commander Hu Mao and vice-commander Hu Yan, lower at left under Luan Zhi and vice Xu Chen, central remained at centre under Xian Zhen and vice Xi Zhen. Duke Wen did not direct or engage in the fighting.[2]

Battle

On the fourth day of the fourth month of 632 BC, the rival forces met.

The battle commenced with the advance of both wings of the Jin army. The Chu right wing was reckoned to be the weakest and Xu Chen, commander of the Jin left wing, attacked. Xu armoured his chariot horses with tiger skins and launched an urgent, vigorous assault on the Chu right wing. The attack was rapidly successful, scattering and demolishing the enemy wing completely.

The Jin left then became a holding force, fixing the Chu center and preventing it from attacking the Jin centre or aiding the Chu left wing, since in either case the Jin left would have taken it in the flank and rear. Meanwhile, Hu Mao's Jin right wing had skirmished with the enemy, faked a retreat and carried with them the two great banners of the Jin commander-in-chief himself. The Chu left, made up of levies from the states of Shen and Xi, thought that the Jin right wing had lost and Ziyu ordered a pursuit. A contingent of chariots under Luan Zhi swept in front and dragged tree branches to raise a dust cloud and thereby obscure the movements of Hu Mao's men who were circling and reforming.

The Jin left aided by the Jin center continued to maintain their positions against the Chu center. Though the Jin centre was temporarily disordered by an intense whirlwind, it was effective in preventing the Chu center from supporting its left wing. As the Chu left advanced, it was caught in the flank by Duke Wen's bodyguards, composed of the sons of noble clansmen and sons of his close followers and thus flanked by the Jin central army. Meanwhile, the entire force of the Jin right wing completed its recircling and was supported on its right by Luan Zhi's chariots to join the assault. The Chu left was completely destroyed. Seeing both his wings enveloped, Ziyu ordered a general retreat.[2]

Evaluation

The Battle of Chengpu is one of the biggest battles of the Spring and Autumn period and the most detailed in the Zuo Zhuan. Nevertheless, the location of the battle remains obscure: two inconclusive possibilities are the vicinity of Chenliu, Henan and the southwest area of Juancheng County, Shandong. After returning to the north, Duke Wen was recognised by the King of Zhou as first among the feudal lords. A multi-state conference at Jiantu in 631 BC headed by Duke Wen confirmed their support for the Zhou royal family and swore a covenant of alliance. The battle, however, was not effective in the long term in restricting the power of Chu.[2]

References
  1. "Battle of Chengpu". 2007. Archived from the original on 26 February 2010. Retrieved 26 December 2009.
  2. "Battle of Chengpu ( 城濮之战 )". 2005. Archived from the original on 7 May 2006. Retrieved 26 December 2009. chinadetail.com

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