The Battle of Jieting (街亭之战) was fought in 228 CE during Zhuge Liang’s first Northern Expedition (北伐). It was a catastrophic defeat for Shu Han that forced the abandonment of the entire campaign and remains one of the most famous cautionary tales in Chinese military history.
Strategic context
In 228, Zhuge Liang launched the first of his Northern Expeditions against Cao Wei. The strategy was to attack through the Qinling Mountains from Hanzhong into Wei territory. Several commanderies in the Longyou region (隴右, west of the Wei River) rebelled against Wei and submitted to Shu, encouraged by Zhuge Liang’s advance.
The key to holding the Longyou region was Jieting (街亭), a strategic pass that controlled the route from the Guanzhong plain (關中) into the Longyou area. If Jieting held, Wei reinforcements from the east could not reach the rebel commanderies. If it fell, the entire campaign would be cut off.
Ma Su’s appointment
Zhuge Liang faced a critical decision: who to put in command of Jieting. Many experienced generals expected to be given the assignment. Instead, Zhuge Liang chose Ma Su (馬謖), a talented staff officer and close confidant who had served as a military adviser but had no experience commanding troops in battle.
The sources suggest that Zhuge Liang had a high opinion of Ma Su’s strategic thinking and had often discussed military theory with him. Ma Su had participated in the Southern Campaign against the Nanman (南蠻) and had advised Zhuge Liang on the strategy of winning hearts rather than simply crushing resistance (“攻心為上，攻城為下”).
Veteran generals, including Wei Yan and others, were passed over. Some accounts suggest that Zhuge Liang was influenced by personal affection — Ma Su’s older brother, Ma Liang (馬良), had been a close friend of Zhuge Liang and had died at the Battle of Yiling.
The orders
Zhuge Liang gave Ma Su clear and specific orders: defend the pass, hold the road, do not deviate from the plan. He also assigned Wang Ping (王平) as Ma Su’s deputy, with instructions to assist and, implicitly, to keep Ma Su in check.
The deployment
Ma Su disobeyed. Rather than blocking the pass as ordered, he chose to deploy his forces on Mount Qishan (or a nearby hill), believing that holding the high ground would give his army a tactical advantage. Wang Ping argued against this deployment, pointing out that the army would be cut off from its water supply if the mountain were surrounded. Ma Su ignored him.
Zhang He arrived with the Wei relief force and immediately saw the weakness of Ma Su’s position. He surrounded the mountain, cut off the Shu army’s access to water, and waited. Without water, the Shu troops began to desert. Zhang He then attacked. The Shu army collapsed.
Wang Ping, commanding a smaller detachment, held his position. He gathered scattered survivors and conducted an orderly retreat. His conduct during the disaster stood in stark contrast to Ma Su’s.
Consequences
The loss of Jieting meant that Wei reinforcements could flow freely into the Longyou region. The rebel commanderies that had submitted to Shu were quickly re subdued by Wei forces. Zhuge Liang’s entire campaign became untenable, and he ordered a general retreat back to Hanzhong.
Ma Su’s execution
Zhuge Liang had Ma Su arrested and sentenced him to death. The sources record that Zhuge Liang wept as he carried out the sentence. Ma Su, for his part, accepted his fate and wrote a letter to Zhuge Liang before his execution, expressing remorse and asking Zhuge Liang to care for his family.
Zhuge Liang also demoted himself by three ranks, taking responsibility for the appointment of Ma Su. He promoted Wang Ping for his conduct during the battle.
Zhuge Liang’s regret
The execution of Ma Su is described as one of the most painful decisions of Zhuge Liang’s career. The sources record that when Ma Su’s family came to Zhuge Liang for support, he treated them with extraordinary generosity, as if Ma Su were still alive. Zhuge Liang reportedly said that he regretted not having listened to Liu Bei’s deathbed warning about Ma Su.
According to the Records of the Three Kingdoms, Liu Bei had told Zhuge Liang on his deathbed:
“Ma Su’s words exceed his abilities. He cannot be trusted with great responsibilities. Be careful.” (馬謖言過其實，不可大用，君其察之。)
Zhuge Liang had not believed Liu Bei’s assessment. The Battle of Jieting proved it.
In the Romance of the Three Kingdoms
The Romance of the Three Kingdoms dramatises the battle in one of its most famous episodes:
- The debate between Ma Su and Wang Ping is expanded.
- Ma Su is depicted as arrogant and overconfident, dismissing Wang Ping’s warnings.
- Zhuge Liang’s emotional response to Ma Su’s execution is elabourated, including the famous scene of him weeping as he orders the execution and then mourning for Ma Su’s family.
- The episode is sometimes called “Zhuge Liang weeps as he executes Ma Su” (諸葛亮揮淚斬馬謖).
Significance
The Battle of Jieting is one of the most cited examples in Chinese military and political culture of the danger of:
- Promoting based on theory rather than experience: Ma Su was brilliant in discussion but incompetent in command.
- Ignoring good advice: Wang Ping’s warnings were correct but were dismissed.
- Personal favouritism: Zhuge Liang’s attachment to Ma Su clouded his judgment.
- The importance of holding key terrain: Jieting was the choke point; whoever held it controlled the campaign.
The phrase “Ma Su loses Jieting” (馬謖失街亭) has become a Chinese idiom for catastrophic failure due to poor judgment.