A diplomatic insult sparked a major ancient Chinese war between the states of Jin and Qi.
In 589 BC, the Battle of An transformed regional power dynamics after a series of humiliations at the Qi court. What began as a dispute over mocking laughter and physical mockery escalated into a full-scale military confrontation, ultimately forcing a strategic alliance between two of China's most formidable states.
The origins of the Battle of An are traced back to 592 BC, when Xi Ke, an emissary from the state of Jin, visited the court of Qi. Ancient historical commentaries, specifically the Zuo Zhuan and Guliang Zhuan, offer differing accounts of the provocation. The Zuo Zhuan suggests that the Duke of Qi allowed women to observe and mock the emissary, while the Guliang Zhuan claims the Duke insulted four visiting emissaries by assigning them servants who mirrored their own physical defects. This perceived humiliation became a rallying cry for the Jin-led coalition.
By 589 BC, the geopolitical landscape was dominated by the rivalry between Jin and Chu. Qi, aligned with Chu, invaded the state of Lu, prompting a coalition response from Jin, Wey, Lu, and Cao. The commanders of these allied forces were the very men insulted by the Duke of Qi years prior. On 29 May, 589 BC, the armies engaged at An. Despite being wounded by an arrow, the Jin commander Xi Ke was goaded into continuing the fight by his chariot driver, Xie Zhang, who beat the war drum to rally the troops to victory.
The battle featured remarkable instances of ritual and deception. When the Duke of Qi attempted to flee, he switched places with his spearman, Feng Choufu, to evade capture. Although the Jin commander Han Jue initially captured the decoy, the ruse eventually allowed the Duke to escape. In the aftermath, Jin demanded the Duke’s mother as a hostage and the reconfiguration of Qi’s land divisions to facilitate future invasions. Through the diplomatic efforts of the envoy Guo Zuo, who appealed to filial piety and historical precedent, Qi successfully negotiated a peace. On 4 July, 589 BC, a covenant was sworn, ending the conflict and establishing a lasting, albeit tense, stability between the two powers.
Source: Battle of An