The Empty Fort Strategy’s Zhuge Liang

Zhuge Liang’s Legendary Masterstroke of Psychological Warfare: Empty Fort Strategy (空城计, Không Thành Kế) is one of the most famous strategic stories associated with Zhuge Liang (诸葛亮, Gia Cát Lượng). In the best-known version, Zhuge Liang finds himself trapped in Xicheng (西城, Tây Thành) with only a tiny force after the disastrous Battle of Jieting (街亭之战, Nhai Đình Chi Chiến). A huge Wei army commanded by Sima Yi (司马懿, Tư Mã Ý) approaches, and conventional defense appears impossible.

Instead of closing the gates and preparing for a desperate siege, Zhuge Liang does the opposite. He opens the gates, orders a handful of soldiers to behave like ordinary civilians, and sits above the gate tower with a guqin. He burns incense and calmly plays music while the enemy army approaches. Sima Yi sees the apparently defenseless city and becomes suspicious. A commander as cautious as Zhuge Liang, he reasons, would never expose an empty fortress so openly unless a trap were waiting inside.

The Wei army withdraws.

It is one of the most elegant examples of psychological warfare in Chinese literature: an apparently powerless defender turns his weakness into a source of fear, while an overwhelmingly stronger opponent becomes paralyzed by uncertainty.

Yet there is a crucial historical question behind the legend. Did Zhuge Liang really perform the Empty Fort Strategy at Xicheng against Sima Yi in 228 AD? The answer is almost certainly no. The famous Xicheng episode belongs to Romance of the Three Kingdoms (三国演义, Sān Guó Yǎn Yì, Tam Quốc Diễn Nghĩa). However, an older anecdote preserved in the annotations of Records of the Three Kingdoms (三国志, Sān Guó Zhì, Tam Quốc Chí) describes a remarkably similar deception involving Zhuge Liang, Sima Yi, and the fortified position at Yangping (阳平, Dương Bình). Even that earlier story was questioned by the historian Pei Songzhi (裴松之, Bùi Tùng Chi).

The Empty Fort Strategy is therefore best understood on three different levels: as a famous literary episode, as a story with roots in an older historical tradition, and as a powerful metaphor for psychological warfare. Its lasting appeal comes from the same question that makes the original scene so compelling: what happens when an enemy is more frightened by what he cannot see than by what he can see?

What Does Empty Fort Strategy Mean?

The Chinese expression 空城计 (Kōngchéng Jì, Không Thành Kế) can be translated literally as “Empty City Strategy” or “Empty Fort Strategy.” It describes a deceptive tactic in which a commander deliberately exposes the apparent weakness of a position in order to make the enemy suspect that the weakness is itself a trap.

The logic is almost paradoxical. A commander normally hides weakness. He closes the gates, raises defensive banners, positions archers on the walls, and attempts to make his fortress look stronger than it really is. The Empty Fort Strategy reverses this principle. The defender makes the fortress look even weaker, hoping that the enemy will become suspicious of such obvious vulnerability.

The tactic therefore depends on the enemy’s interpretation rather than the physical strength of the fortress. Its psychological mechanism can be summarized as follows:

• Visible weakness: the fortress appears poorly defended.
• Unexpected behavior: the gates are open and the defenders appear calm.
• Enemy suspicion: the attacker assumes that such behavior must have a hidden explanation.
• Fear of deception: the attacker imagines an ambush or concealed force.
• Hesitation: the attacker chooses caution instead of immediate assault.
• Strategic survival: the weaker force gains time to retreat or reorganize.

The defender does not need to make the enemy believe that the fortress is definitely full of soldiers. He only needs to make the enemy uncertain enough that attacking becomes unacceptable.

This is what makes the Empty Fort Strategy fundamentally different from a conventional military victory. Zhuge Liang does not defeat the enemy army with weapons. He attempts to defeat its decision-making process.

Zhugeliang – 诸葛亮 – Gia Cát Lượng

The Historical Setting: The First Northern Expedition of 228 AD

The famous literary episode is placed during the first major Northern Expedition (北伐, Běifá, Bắc Phạt) of Shu Han. The campaign began in 228 AD, during the reign of Cao Rui (曹叡, Tào Duệ), the second emperor of Wei.

By this point, the political landscape created after the collapse of the Eastern Han Dynasty had hardened into the familiar three-way struggle between Shu Han, Cao Wei, and Eastern Wu. Liu Bei (刘备, Lưu Bị) had died in 223 AD, and his successor Liu Shan (刘禅, Lưu Thiện) was still young. Zhuge Liang had therefore become the central political and military authority of Shu Han.

His strategic objective was extraordinarily ambitious. Shu controlled the mountainous southwest, but the heartland of the former Han Empire remained under Wei control. Zhuge Liang hoped to push north through the difficult terrain, gain support from territories in the northwest, and eventually threaten the Wei heartland.

The first expedition initially produced impressive results. The Shu advance created panic in the Wei-controlled northwest, and several important commanderies responded to Zhuge Liang’s arrival. The historical record specifically notes that Tianshui (天水, Thiên Thủy), Nanan (南安, Nam An), and Anding (安定, An Định) responded to the Shu advance.

But the Shu army had a critical vulnerability: its supply and communication network depended on controlling strategically important routes. Among the most important of these was Jieting (街亭, Nhai Đình).

Cao Rui and the Wei Response

When news of Zhuge Liang’s advance reached the Wei court, Cao Rui (曹叡, Tào Duệ) personally became involved in organizing the defense. The Wei response involved several experienced commanders, including Cao Zhen (曹真, Tào Chân), Zhang He (张郃, Trương Cáp), and eventually Sima Yi (司马懿, Tư Mã Ý) in the wider strategic response to Shu.

The Wei command structure is important because the novel simplifies several different military operations into a much more concentrated confrontation between Zhuge Liang and Sima Yi. Historically, the Wei response involved multiple commanders operating in different areas, and Zhang He played the decisive role at Jieting.

Other Wei commanders associated with the campaign included Guo Huai (郭淮, Quách Hoài), Fei Yao (费曜, Phí Diệu), Dai Ling (戴陵, Đái Lăng), Xin Pi (辛毗, Tân Bì), and Sun Li (孙礼, Tôn Lễ). In the literary narrative, these commanders help create the impression of a massive and coordinated Wei response surrounding Zhuge Liang’s army.

The strategic contest was therefore not simply “Zhuge Liang versus Sima Yi.” It involved an entire network of commanders, supply routes, defensive positions, and political decisions. Understanding those figures makes the Empty Fort story much easier to place within the larger history of the first Northern Expedition.

Ma Su and the Disaster at Jieting

Ma Su (马谡, Mã Tốc) was one of Zhuge Liang’s most trusted officers. He was intelligent, articulate, and deeply interested in military theory. Zhuge Liang frequently discussed strategy with him, and Ma Su eventually received command of the troops sent to secure Jieting.

There was, however, a warning that later became tragically important. Liu Bei had reportedly cautioned Zhuge Liang that Ma Su’s words exceeded his practical ability and advised him not to rely on him too heavily. Zhuge Liang did not fully accept this judgment. Instead, Ma Su was given a major battlefield responsibility during the Northern Expedition.

At Jieting, Ma Su ignored the more cautious advice of Wang Ping (王平, Vương Bình). Rather than firmly securing the strategic road and its water supply, Ma Su positioned his troops on high ground. His decision was based on military theory: occupying elevated ground could provide an advantage over an attacking enemy.

Wang Ping repeatedly warned him that the position was dangerous if the Wei army cut off access to water. Ma Su refused to change his deployment.

“If the enemy cuts off our water, we will fight to the death.”

— Ma Su (literary dialogue, Romance of the Three Kingdoms)

In reality, the problem was precisely what Wang Ping had predicted. Zhang He recognized that Ma Su had abandoned the strategically important water source. Wei forces surrounded the mountain, cut off the water supply, and attacked the isolated Shu troops.

The result was a major Shu defeat.

The historical account is unusually clear about the consequences. Ma Su’s army collapsed, while Wang Ping managed to preserve approximately a thousand men and maintain enough order to discourage Zhang He from immediately pressing the pursuit. Zhuge Liang subsequently withdrew from the campaign and brought his forces back toward Hanzhong.

Wang Ping: The Officer Who Saw the Problem

Wang Ping (王平, Vương Bình) deserves special attention because the Jieting disaster demonstrates the difference between theoretical confidence and practical military judgment.

Wang Ping repeatedly warned Ma Su that the mountain position was dangerous. When Ma Su refused to listen, Wang Ping separated his own contingent and established a smaller position nearby. This decision eventually saved part of the Shu force.

After the defeat, Wang Ping’s approximately one thousand surviving soldiers maintained their position with drums and defensive discipline. Zhang He suspected that Wang Ping might be concealing a larger force or preparing an ambush and therefore did not immediately attack.

This detail creates an interesting connection with the later Empty Fort Strategy. At Jieting, the appearance of strength influenced Zhang He’s decision. At the legendary Xicheng, Zhuge Liang would use the appearance of weakness to create the same kind of uncertainty.

Zhang He: The Historical Victor at Jieting

Zhang He (张郃, Trương Cáp) was the key Wei commander at Jieting. His battlefield judgment was decisive because he recognized the weakness created by Ma Su’s deployment and immediately exploited it.

Rather than attacking the mountain position blindly, Zhang He surrounded Ma Su’s force and cut off its water supply. Once the Shu troops were weakened by thirst and hunger, their cohesion deteriorated. Zhang He then launched the decisive assault.

This was a genuine historical victory, not a literary invention. The Wei emperor Cao Rui rewarded Zhang He for his success, and later historical accounts continued to recognize the battle as one of Zhang He’s most important achievements.

Zhang He – 张郃 – Trương Cáp

This matters because the novel’s famous Empty Fort Strategy follows immediately after a historical disaster. Zhuge Liang’s legendary brilliance is therefore framed by an actual military failure. The story becomes more dramatic precisely because the strategist has already suffered a serious defeat.

Other Shu Commanders Around the Campaign

The first Northern Expedition involved many Shu commanders who disappear from simplified retellings of the Empty Fort story. Yet they were important to the campaign and help explain why Zhuge Liang had relatively few troops available at the supposed Xicheng crisis.

• Wei Yan (魏延, Ngụy Diên) was one of Shu’s most aggressive generals and was assigned a supporting position behind Jieting.
• Gao Xiang (高翔, Cao Tường) was positioned near Liuliu City (列柳城, Liệt Liễu Thành) and could provide support if Jieting came under pressure.

• Zhao Yun (赵云, Triệu Vân) and Deng Zhi (邓芝, Đặng Chi) operated in the Jigu Valley (箕谷, Kê Cốc) as a diversionary force.
• Jiang Wei (姜维, Khương Duy) served as a forward commander during the expedition and would later become one of Zhuge Liang’s most important military successors.
• Liang Xu (梁绪, Lương Tự) and other officers belonged to the wider command structure supporting Zhuge Liang’s operations in the northwest.

The historical campaign was therefore a complex network of separate movements. The literary Empty Fort Strategy simplifies that complexity into one spectacular confrontation because the story’s real subject is Zhuge Liang’s psychological duel with Sima Yi.

The Literary Sima Yi Takes Center Stage

Sima Yi (司马懿, Tư Mã Ý) is one of the most important figures in the entire Three Kingdoms tradition. Historically, he was a major Wei statesman and military commander whose career eventually led his family toward political dominance over Wei.

In Romance of the Three Kingdoms, however, Sima Yi is given an additional role: he becomes Zhuge Liang’s great intellectual rival.

Sima Yi – 司马懿 – Tư Mã Ý

The novel repeatedly places the two men in situations where physical strength matters less than calculation. Zhuge Liang creates elaborate deceptions; Sima Yi attempts to identify the hidden logic behind them. Zhuge Liang uses uncertainty; Sima Yi responds with caution.

The Empty Fort Strategy is therefore almost perfectly designed for their literary relationship.

It is a battle in which neither man needs to strike the other.

One man only needs to make the other doubt what he sees.

The Famous Xicheng Crisis

According to the novel, after Jieting falls, Zhuge Liang withdraws toward Xicheng. He has only a small number of troops remaining, while Sima Yi’s army is enormous.

The novel gives Zhuge Liang approximately 2,500 soldiers and Sima Yi approximately 150,000 troops. These numbers are part of the literary presentation and should not be treated as reliable historical statistics.

The important point is the overwhelming imbalance.

Zhuge Liang cannot realistically defend the city in a conventional battle. He does not have enough soldiers to man the walls properly, and he cannot withstand a determined assault.

His officers are terrified.

The city is vulnerable.

The enemy is approaching.

And Zhuge Liang chooses the one action that seems least rational.

He opens the gates.

Why Zhuge Liang Opens the Gates

The novel describes Zhuge Liang ordering the military banners to be hidden and the gates opened. A small number of elderly soldiers are instructed to dress and behave like ordinary civilians. They sweep the roads around the city as though nothing unusual is happening.

The effect is carefully designed.

There are no drums announcing battle.

There are no large formations on the walls.

There are no obvious preparations for a siege.

There is no visible panic.

Instead, Xicheng appears strangely peaceful.

The novel then adds the detail that transforms the scene into one of the most famous images in Chinese literature: Zhuge Liang sits above the city gate, burns incense, and plays the guqin.

Two attendants remain beside him.

The enemy army approaches.

Zhuge Liang plays.

The Guqin Becomes a Psychological Weapon

The guqin itself is not a military weapon. Its importance lies entirely in what it communicates.

A commander facing an enormous enemy army should logically be preparing for battle. Zhuge Liang instead behaves as though he has nothing to fear.

That creates an extraordinary contradiction.

• The Wei army is approaching rapidly.
• The city gates are open.
• The defenders are not visibly preparing for combat.
• Civilians appear to be calmly sweeping the roads.
• Zhuge Liang is sitting in public instead of hiding behind the walls.
• The commander appears relaxed rather than frightened.

Every detail tells Sima Yi that something is unusual.

The city is apparently empty.

But the behavior of its commander suggests that it may not be.

Sima Yi Arrives at Xicheng

When Sima Yi’s troops approach the city, the advance force hesitates. Sima Yi personally observes the scene and sees Zhuge Liang sitting above the gate with his guqin.

The novel makes Sima Yi’s reasoning explicit: Zhuge Liang is famous for being cautious and normally avoids reckless military risks. Therefore, an apparently undefended city must contain some hidden danger.

“Zhuge Liang has always been cautious. He would not expose an empty city like this without a reason.”

— Sima Yi, in the literary tradition

The crucial word is “reason.” Sima Yi does not know what the reason is. He only assumes that one must exist.

That assumption is enough.

The empty fortress becomes psychologically full.

Sima Yi begins imagining hidden soldiers, concealed archers, ambush positions, and other possibilities that he cannot see.

What Does Sima Yi Actually Fear?

Sima Yi is not necessarily afraid of the visible city.

He is afraid of the possibility that the visible city is a deception.

This distinction is the heart of the story.

If Sima Yi believed Xicheng were genuinely undefended, he would attack immediately. If he knew for certain that a massive ambush were waiting, he would retreat immediately. But Zhuge Liang places him in the uncomfortable middle ground between those two possibilities.

Sima Yi does not know which interpretation is correct.

The result is hesitation.

And hesitation is precisely what Zhuge Liang needs.

Sima Yi’s Sons: Sima Shi and Sima Zhao

The literary scene also involves Sima Shi (司马师, Tư Mã Sư) and Sima Zhao (司马昭, Tư Mã Chiêu), the sons of Sima Yi.

Their presence reinforces the generational contrast within the scene. The younger commanders are more willing to accept the obvious explanation: perhaps the city really is undefended and Zhuge Liang is simply trying to frighten them.

Sima Zhao in particular questions his father’s decision.

“Could it be that Zhuge Liang has no troops and is merely pretending?”

— Sima Zhao, literary dialogue

Sima Yi rejects the idea of an immediate assault.

In the novel, the older commander has the deeper understanding of Zhuge Liang’s character. He knows that Zhuge Liang is unlikely to take such a conspicuous risk without preparing something unseen.

This creates one of the novel’s recurring themes: the older strategist understands the psychology of the opposing strategist better than his own younger officers do.

Zhuge Liang’s Greatest Weapon: Reputation

The Empty Fort Strategy works because Zhuge Liang has already spent years building a reputation for intelligence and caution.

An unknown commander could not necessarily perform the same trick. If a minor officer opened a city gate and sat calmly above it, the enemy might simply assume that he had lost control of the situation.

Zhuge Liang is different.

Sima Yi already believes that Zhuge Liang thinks several moves ahead.

Therefore, when Zhuge Liang behaves irrationally, Sima Yi assumes that the irrationality must have a strategic purpose.

This creates a fascinating psychological chain:

1. Zhuge Liang is known to be cautious.
2. A cautious commander would not normally expose an undefended fortress.
3. Xicheng appears deliberately exposed.
4. Therefore, Zhuge Liang must have a hidden reason.
5. The hidden reason may be an ambush.
6. Attacking could therefore be dangerous.
7. Retreat becomes the safer decision.

The deception succeeds before Sima Yi has even entered the city.

The Famous Retreat

After observing the city, Sima Yi orders the Wei army to withdraw.

The novel describes the troops changing their formation so that the front becomes the rear and the rear becomes the front, moving away from Xicheng rather than toward it.

Zhuge Liang’s officers are astonished.

The city survives.

The Wei army survives.

There is no major battle.

And yet the novel treats the event as a decisive strategic victory.

That is precisely why the story became so famous. Zhuge Liang has supposedly achieved the impossible: he has used almost no physical force to defeat an enemy possessing overwhelming military superiority.

A Famous Literary Exchange

The dramatic dialogue between Zhuge Liang and Sima Yi is one reason the scene works so well in performance traditions.

The exact wording differs between literary and theatrical adaptations, but the central idea remains the same: Zhuge Liang’s behavior invites Sima Yi to doubt his own judgment.

“If you believe this city is empty, why do you hesitate to enter?”

— Zhuge Liang, dramatic tradition based on the Empty Fort episode

The line captures the psychological essence of the scene. Zhuge Liang does not need to prove that the city contains an army. He only needs Sima Yi to believe that attacking might be exactly what Zhuge Liang wants him to do.

The Historical Problem: Sima Yi Was Not There in the Novel’s Way

This is where the story must be separated from history.

The historical record of the first Northern Expedition does not support the famous Xicheng confrontation between Zhuge Liang and Sima Yi. The Records of the Three Kingdoms describes the 228 campaign and specifically records Zhang He defeating Ma Su at Jieting. It does not record Sima Yi arriving at Xicheng to confront Zhuge Liang in the manner made famous by the novel.

There is also a chronological problem with the older Yangping version of the story. The anecdote attributed to Guo Chong (郭冲, Quách Xung) says that Sima Yi approached Zhuge Liang’s position at Yangping with a huge army. But Pei Songzhi pointed out that at the relevant time Sima Yi was serving as the Wei commander in Jing Province and was based at Wancheng (宛城, Uyển Thành), not confronting Zhuge Liang at Yangping.

Pei Songzhi therefore considered the story unreliable. His comments are exceptionally valuable because they show that doubts about the historical Empty Fort Strategy existed long before the Ming novel.

The Older Yangping Story

The older story is nevertheless extremely important because it shows that the literary idea of an Empty Fort did not originate entirely with Luo Guanzhong.

According to the account attributed to Guo Chong, Zhuge Liang was stationed at Yangping while Wei Yan (魏延, Ngụy Diên) took the main force eastward. Zhuge Liang remained with a smaller force to defend the position.

Sima Yi supposedly approached with approximately 200,000 troops.

When Zhuge Liang learned that the enemy was close, his officers became alarmed. Instead of showing panic, Zhuge Liang ordered the military banners hidden, the drums silenced, the gates opened, and the soldiers to behave as though nothing unusual was happening.

The result was similar to the later Xicheng legend: Sima Yi suspected an ambush and withdrew.

According to the story, Zhuge Liang then laughed and explained to his advisers that Sima Yi must have believed the apparent weakness was hiding a strong force.

That is remarkably close to the later Empty Fort Strategy.

But the story has a serious problem: Pei Songzhi did not believe it.

Pei Songzhi’s Criticism of the Story

Pei Songzhi’s objections are among the most important pieces of evidence for understanding the legend.

He pointed out that the geography and chronology did not fit the known movements of Sima Yi. He also questioned why an army of approximately 200,000 men would simply withdraw after discovering that Zhuge Liang had a much smaller force.

His criticism can be summarized into several problems:

• Chronology: Sima Yi’s known position did not match the alleged confrontation at Yangping.
• Geography: the movements of the armies did not fit comfortably with the known strategic situation.
• Military logic: a massive army could have adopted a cautious reconnaissance strategy instead of immediately withdrawing.
• Source reliability: Guo Chong’s story itself had reasons to be treated skeptically.

Pei Songzhi’s conclusion was unusually direct. He believed that the story attributed to Guo Chong was unreliable and that the circumstances described were inconsistent with other historical evidence.

Why the Novel Moved the Story to Xicheng

When the Empty Fort story reached its mature literary form in Romance of the Three Kingdoms, the location changed to Xicheng and the event was attached directly to the first Northern Expedition.

This was an excellent narrative decision.

The first Northern Expedition already contained everything needed for a dramatic story:

• A major Shu offensive against Wei.
• Three commanderies responding to Zhuge Liang’s advance.
• The strategic crisis at Jieting.
• Ma Su’s disastrous decision.
• Zhang He’s battlefield victory.
• Zhuge Liang’s forced withdrawal.
• Sima Yi as Zhuge Liang’s great intellectual rival.
• A desperate city with insufficient troops.

The novel could therefore connect a genuine historical defeat with an extraordinary fictional victory.

Ma Su loses Jieting.

Zhuge Liang then appears to recover the situation through superior psychological warfare.

The literary structure is almost perfect.

Why the Guqin Makes the Story More Powerful

The older Yangping anecdote already contains the essential Empty Fort mechanism: open gates, hidden military signs, and apparent calm. The novel adds the guqin, and that one detail transforms the story.

Music creates an emotional contrast with war.

The Wei army approaches with weapons, banners, cavalry, and drums.

Zhuge Liang sits quietly with an instrument.

The enemy expects chaos.

He presents serenity.

The enemy expects fear.

He presents confidence.

The enemy expects a defensive formation.

He presents an almost ceremonial scene.

The result is theatrical, but it is also psychologically sophisticated.

The Guqin and the Image of the Scholar-Strategist

Zhuge Liang’s literary image is not simply that of a general. He is presented as a scholar, statesman, strategist, and intellectual.

The guqin reinforces this identity.

He does not need to hold a weapon to demonstrate authority.

His weapon is his mind.

The contrast between the elegant scholar and the massive Wei army creates one of the strongest visual metaphors in the Three Kingdoms tradition.

Hundreds or thousands of soldiers represent physical force.

One calm strategist represents psychological control.

The image has therefore become much larger than the specific military episode.

The Soldiers Who Sweep the Streets

Another detail often overlooked is the use of soldiers disguised as ordinary civilians.

Their task is not to fight.

They are instructed to sweep the streets.

This creates a performance of normality.

The city does not look militarized.

But because the enemy knows that an army is approaching, this normality becomes suspicious.

The soldiers are therefore participating in the deception simply by performing ordinary life.

The more calmly they behave, the more extraordinary the situation appears.

The Open Gates as a Psychological Trap

Closed gates would have been normal.

Fortified gates would have been normal.

Soldiers standing on the walls would have been normal.

Open gates are abnormal.

That abnormality forces Sima Yi to search for an explanation.

The story therefore turns the gates themselves into a psychological trap.

Zhuge Liang does not hide the absence of defenders.

He displays it.

The enemy then becomes responsible for creating the hidden threat inside his own imagination.

The Intelligence Paradox of Sima Yi

One of the most interesting aspects of the story is that Sima Yi’s intelligence becomes part of the reason the stratagem succeeds.

A foolish commander might simply attack.

Sima Yi is not foolish.

He understands Zhuge Liang’s reputation and assumes that every visible action may have a hidden purpose.

This produces a paradox:

The more intelligent Sima Yi believes Zhuge Liang to be, the more difficult it becomes for him to accept the obvious explanation.

The empty fortress therefore becomes a mirror of Sima Yi’s own intelligence.

He sees an empty city.

Then he imagines why Zhuge Liang would want him to see an empty city.

That second layer of interpretation is where the deception succeeds.

Sima Yi Is Not a Coward

The traditional image sometimes portrays Sima Yi as a timid commander who was simply frightened by Zhuge Liang.

That interpretation is too simplistic.

The literary Sima Yi is cautious because he understands risk.

He knows that Zhuge Liang has a reputation for deception.

He also knows that entering an apparently empty city could be precisely what the enemy wants.

His retreat is therefore presented as a rational response to uncertainty within the novel’s own psychological framework.

Whether it would have been rational under actual battlefield conditions is another question.

The Historical Sima Yi Was More Complicated

The historical Sima Yi was far more than the suspicious antagonist of the novel. His career extended across the reigns of Cao Cao (曹操, Tào Tháo), Cao Pi (曹丕, Tào Phi), and Cao Rui, and he eventually became one of the most powerful men in Wei.

His long-term importance becomes especially clear after Zhuge Liang’s death. The Sima family eventually dominated the Wei political system, and Sima Yi’s descendants established the Jin dynasty.

That historical outcome gives the literary rivalry with Zhuge Liang an interesting retrospective dimension. The novel presents their struggle as a battle between two great minds, but history ultimately remembers Sima Yi as the ancestor of a political house that would overturn the Wei regime itself.

Cao Cao, Cao Pi, and Cao Rui: The Political Background

The Empty Fort story cannot be completely separated from the Cao family.

Cao Cao (曹操, Tào Tháo) created the political and military foundation of the Wei state. His son Cao Pi (曹丕, Tào Phi) formally established Cao Wei in 220 AD after receiving the abdication of Emperor Xian of Han (汉献帝, Hán Hiến Đế).

Cao Pi died in 226 AD, and his son Cao Rui (曹叡, Tào Duệ) succeeded him. It was under Cao Rui that Zhuge Liang launched the first Northern Expedition in 228 AD.

Thus, the Empty Fort legend belongs to a much larger political struggle involving the second generation of the three great regimes. The commanders were not operating in isolation; they were serving rulers whose states were competing for control of the former Han Empire.

Wei Yan and the Alternative Strategy

Wei Yan (魏延, Ngụy Diên) is particularly interesting because his character represents a different strategic philosophy from Zhuge Liang.

Wei Yan was known for aggressive ideas and greater willingness to accept risk. In the literary tradition, he repeatedly advocates more daring approaches to attacking Wei territory.

Wei Yan – 魏延 – Ngụy Diên

Zhuge Liang, by contrast, is usually portrayed as cautious and methodical.

This contrast makes the Empty Fort Strategy more ironic. The man who normally refuses reckless military plans is suddenly forced into the most extreme psychological gamble of his career.

The novel’s explanation is simple: Zhuge Liang does not choose the Empty Fort Strategy because he likes risk. He chooses it because every conventional option appears worse.

Zhao Yun and Deng Zhi

Zhao Yun (赵云, Triệu Vân) and Deng Zhi (邓芝, Đặng Chi) were also involved in the first Northern Expedition. Zhuge Liang used them in the Jigu Valley as a diversionary force, creating uncertainty about the actual direction of the main Shu advance.

Their role demonstrates that deception was not an isolated idea in Zhuge Liang’s military thinking. The campaign itself used multiple forms of strategic misdirection.

The literary Empty Fort Strategy therefore fits naturally into the novel’s broader portrayal of Zhuge Liang as a commander who prefers intelligence, timing, and deception to brute force.

Jiang Wei and the Future of Shu Strategy

Jiang Wei (姜维, Khương Duy) also appears in the campaign and would later become one of Zhuge Liang’s most important military successors.

His presence is significant because the first Northern Expedition marked a formative period in his career. Jiang Wei would eventually inherit much of Zhuge Liang’s strategic ambition and continue the Northern Expeditions after Zhuge Liang’s death.

Although Jiang Wei has no central role in the famous Empty Fort scene, mentioning him is important when reconstructing the campaign accurately. The story belongs to a larger military system involving many officers whose careers extended far beyond the single episode that later became famous.

Guo Huai and the Wei Counteroffensive

Guo Huai (郭淮, Quách Hoài) was another important Wei commander during the campaign.

He was a highly experienced frontier commander whose career became closely associated with defending Wei’s western territories against Shu.

Guo Huai – 郭淮 – Quách Hoài

In the novel’s account of the aftermath of Jieting, Guo Huai participates in the struggle for the surrounding positions and seeks to capitalize on the defeat of Ma Su.

His presence reinforces the fact that the Wei response was not simply one army following one commander. Multiple Wei commanders were competing and coordinating across a broad battlefield.

Liuliu City and the Wider Retreat

The literary narrative also brings Liuliu City (列柳城, Liệt Liễu Thành) into the sequence of events. Gao Xiang, Wei Yan, and Wang Ping become involved in attempts to recover positions after Jieting falls.

The fighting becomes increasingly complicated as the Shu commanders attempt to regroup while Wei forces exploit the collapse.

This is important because it explains why Zhuge Liang’s supposed arrival at Xicheng is presented as a crisis of movement rather than a normal defensive battle.

The Shu army is not simply sitting inside a secure fortress waiting for an enemy.

It is attempting to withdraw from a campaign whose strategic foundation has already been damaged.

The Historical Ma Su and the Literary Ma Su

Ma Su’s role also changes depending on whether the story is being read historically or literarily.

Historically, Ma Su was an intelligent officer whose battlefield judgment failed disastrously at Jieting. Zhuge Liang later accepted responsibility for having entrusted him with the command and was demoted as a consequence.

In the novel, Ma Su becomes a stronger symbol of intellectual arrogance. He knows military theory but fails to apply it correctly, dismisses Wang Ping’s practical warnings, and ultimately becomes the direct cause of the crisis that forces Zhuge Liang into the Empty Fort Strategy.

Ma Su – 马稷, 马谡 – Mã Tốc

The contrast is deliberate.

Ma Su knows the books.

Zhuge Liang understands the enemy.

That distinction is central to the novel’s concept of strategic intelligence.

The Empty Fort Strategy as Psychological Warfare

Modern readers may understand the episode through the concept of psychological warfare. The goal is not to destroy the opponent physically but to influence his perception, emotions, and decision-making.

The Empty Fort Strategy uses several psychological mechanisms at once:

• Expectation reversal: the enemy expects a defended fortress but sees an open city.
• Reputation: Zhuge Liang’s previous reputation makes the obvious explanation difficult to accept.
• Ambiguity: the enemy cannot determine whether the weakness is genuine.
• Risk aversion: the potential cost of entering a trap appears greater than the benefit of immediate victory.
• Projection: Sima Yi supplies the missing information with his own imagination.
• Time pressure: the approaching army must make a decision without perfect intelligence.

None of these mechanisms requires the fortress to contain a hidden army.

The deception works if the enemy believes that such an army might exist.

The Difference Between a Bluff and a Lie

The Empty Fort Strategy is often called a bluff, but the distinction is useful.

A conventional lie might involve giving the enemy false information about troop numbers. Zhuge Liang does not necessarily do that. He simply creates a situation in which the enemy interprets visible information incorrectly.

The city really is weak.

The gates really are open.

The defenders really are few.

The deception lies in allowing the enemy to believe that these facts must have a hidden meaning.

This is why the strategy is so elegant as a literary concept. Zhuge Liang does not need to create an elaborate false story. He simply creates an unusual situation and allows Sima Yi’s mind to construct the rest.

Why an Empty Fortress Can Become More Frightening Than a Strong One

A heavily defended fortress provides information. The attacker can observe the soldiers, estimate the defenses, identify the weapons, and decide how to proceed.

An apparently empty fortress creates uncertainty.

The attacker cannot tell whether the city is truly empty.

He cannot tell whether hidden forces are nearby.

He cannot tell whether the commander is desperate or confident.

And he cannot tell whether attacking is exactly what the defender wants him to do.

This is the central paradox of the Empty Fort Strategy: the absence of visible danger becomes evidence of invisible danger.

Could the Strategy Really Work?

In real warfare, an Empty Fort Strategy would be extraordinarily risky. A competent commander would normally use reconnaissance before committing the main force. Scouts, local informants, terrain knowledge, and captured prisoners could all reveal whether the fortress was genuinely weak.

For the deception to work, several conditions would need to exist simultaneously:

1. The attacker must lack reliable intelligence about the defender’s actual strength.
2. The defender must have a reputation for intelligence or deception.
3. The attacker must believe an ambush is plausible.
4. The cost of an incorrect decision must be extremely high.
5. The defender must appear calm enough to make the deception credible.
6. The attacker must have insufficient time or confidence to conduct a thorough reconnaissance.

Without these conditions, opening the gates of a weak fortress would be closer to suicide than strategy.

Why Zhuge Liang’s Calmness Matters

The most important element of the literary performance may not be the open gate or even the guqin. It is Zhuge Liang’s behavior.

If he were visibly frightened, Sima Yi would immediately understand that the city was vulnerable.

If he were shouting orders, moving soldiers, or preparing defensive positions, the deception would also become weaker.

Instead, he behaves as though the approaching army is almost irrelevant.

That emotional control communicates information.

It tells the enemy that the commander believes he is safe.

The enemy then has to explain why.

The answer—whether true or false—is created inside the enemy’s mind.

Why the Story Is More Than “Sima Yi Was Fooled”

The simplistic interpretation is that Zhuge Liang was brilliant and Sima Yi was fooled.

The deeper interpretation is that both men are intelligent, but they are operating under incomplete information.

Zhuge Liang understands Sima Yi’s personality well enough to predict his caution.

Sima Yi understands Zhuge Liang well enough to suspect deception.

The two men therefore become trapped in a contest of mutual knowledge.

Zhuge Liang thinks:

“Sima Yi knows that I am cautious.”

— The psychological logic of the literary stratagem

Sima Yi thinks:

“Zhuge Liang knows that I know he is cautious.”

— The psychological logic of the literary stratagem

The situation can continue indefinitely because each commander is attempting to predict what the other commander believes.

This is what makes the Empty Fort Strategy resemble a strategic game of incomplete information rather than an ordinary battlefield encounter.

The Empty Fort Strategy and the Thirty-Six Stratagems

Empty Fort Strategy (空城计, Không Thành Kế) is traditionally listed as the thirty-second stratagem of the Thirty-Six Stratagems (三十六计, Sānshíliù Jì, Tam Thập Lục Kế).

The Thirty-Six Stratagems are a traditional collection of principles concerning deception, timing, manipulation, strategic withdrawal, psychological pressure, and indirect action. They should not be treated as a single military manual written during the Three Kingdoms period, because the collection developed through a much longer historical process.

Its association with the Empty Fort Strategy nevertheless helped transform the Zhuge Liang story into a general expression of strategic deception.

The phrase 空城计 can now be used far beyond discussions of Zhuge Liang. It may describe a bluff, a deliberately exposed weakness, or a situation in which an opponent becomes suspicious because circumstances appear unexpectedly favorable.

The Empty Fort Strategy as a Modern Metaphor

The principle remains relevant because modern competition also depends on perception.

Businesses may deliberately conceal their real capabilities.

Negotiators may appear less interested than they really are.

Competitors may display weakness to encourage an opponent to overcommit.

Leaders may use confidence to create uncertainty about their actual resources.

In each case, the important question is not merely “What is true?” but “What does the opponent believe is true?”

That is the enduring lesson of 空城计.

The Historical Empty Fort Strategy Was Not Unique to Zhuge Liang

It is also important not to assume that Zhuge Liang invented the underlying tactic.

Chinese historical literature contains other examples of commanders using open gates, apparent weakness, or deceptive calmness to manipulate an enemy. One example involves Huang Gai (黄盖, Hoàng Cái) in the aftermath of the Battle of Red Cliffs (赤壁之战, Xích Bích Chiến), when he reportedly faced a much larger hostile force with only a small number of troops and used an open-gate tactic before launching an attack.

Huang Gai – 黄盖 – Hoàng Cái

The historical principle was therefore broader than the Zhuge Liang legend.

What made Zhuge Liang’s version famous was the combination of a dramatic crisis, a legendary strategist, an apparently overwhelming enemy, and a theatrical performance on the city wall.

The Role of Romance of the Three Kingdoms

Romance of the Three Kingdoms is not a conventional history book. It is a historical novel built from earlier histories, oral traditions, legends, folklore, dramatic storytelling, and literary invention.

This is why it can contain genuine historical events alongside scenes that are impossible to verify.

The Empty Fort Strategy is one of the clearest examples.

The first Northern Expedition is historical.

The Battle of Jieting is historical.

Ma Su is historical.

Zhang He is historical.

Sima Yi is historical.

Zhuge Liang is historical.

But the famous meeting between Zhuge Liang and Sima Yi at Xicheng is not securely supported by the historical record.

The novel takes historical people and historical circumstances and creates a dramatic scene that expresses their literary personalities.

History vs. Romance of the Three Kingdoms

Why the Historical Record Is Actually More Interesting

It is tempting to say that the Empty Fort Strategy is simply “fiction.” That is too simple.

The historical record contains a genuine tradition of Zhuge Liang using deception in an apparently vulnerable position. The problem is not that there is no early version of the story. The problem is that the earliest version is itself difficult to reconcile with the known chronology.

This makes the story more interesting, not less.

It shows how historical anecdotes evolve.

A story begins as a disputed account.

Later generations preserve it.

Storytellers simplify it.

Novelists dramatize it.

Opera turns it into performance.

Eventually, the literary version becomes more famous than the historical source.

That is precisely what happened with Zhuge Liang and the Empty Fort Strategy.

The Evolution from Yangping to Xicheng

The transformation can be understood as a gradual process of literary refinement.

1. Early tradition: Guo Chong’s story describes Zhuge Liang using an apparently undefended position against Sima Yi.
2. Historical commentary: Pei Songzhi preserves the account but challenges its reliability.
3. Later storytelling: the basic psychological mechanism becomes increasingly associated with Zhuge Liang.
4. Ming-era novel: Luo Guanzhong places the scene at Xicheng during the first Northern Expedition.
5. Performance tradition: the guqin, open gates, attendants, and Sima Yi’s reaction become theatrical symbols.
6. Modern culture: Empty Fort Strategy becomes a general metaphor for psychological deception.

The modern reader therefore encounters the final form of a story that has passed through several layers of historical and literary development.

Why Zhuge Liang Became the Perfect Character for the Story

No other Three Kingdoms strategist fits the Empty Fort Strategy as naturally as Zhuge Liang.

His literary personality combines several qualities that the story requires:

• Intelligence: he can understand complicated strategic situations.
• Calmness: he rarely appears emotionally overwhelmed.
• Caution: his reputation makes unusual risk-taking suspicious.
• Deception: he frequently relies on misdirection.
• Authority: his subordinates trust his judgment even when they do not understand it.
• Reputation: his enemies already expect him to have a hidden plan.

These qualities make the Empty Fort Strategy almost inevitable as a literary creation. The story is not simply something Zhuge Liang does; it is an event designed to confirm the personality the novel has already built around him.

The Tragedy Behind the Legend

There is also a darker side to the story.

The Empty Fort Strategy is remembered as a triumphant moment, but it emerges from the failure at Jieting.

Ma Su’s mistake costs Shu Han a major strategic opportunity.

Zhuge Liang must retreat.

The Northern Expedition fails.

He later accepts responsibility for the defeat and reduces his own rank.

The legendary Empty Fort therefore represents recovery from a real strategic disaster rather than an uninterrupted sequence of Zhuge Liang’s victories.

This contrast makes the literary story more compelling. The strategist who has just suffered a major setback suddenly appears completely composed when the next danger arrives.

Zhuge Liang’s Self-Criticism After Jieting

The historical Zhuge Liang did not simply blame Ma Su and move on. He accepted responsibility for having entrusted him with the command.

“The fault is mine in assigning the command; I failed to know the man and failed to control the situation.”

— Zhuge Liang’s self-criticism after the Jieting defeat, historical tradition

This detail is important because it gives us a very different image of Zhuge Liang from the flawless strategist of later popular culture.

The historical Zhuge Liang could make serious strategic mistakes.

What distinguished him was his willingness to accept responsibility and reorganize the army after failure.

The Empty Fort Strategy and Zhuge Liang’s Leadership

The legendary scene nevertheless captures something genuine about the image of Zhuge Liang as a leader.

His subordinates are frightened.

The situation is almost impossible.

Yet the commander remains calm.

That calmness serves two purposes simultaneously.

For his own troops, it prevents panic.

For the enemy, it creates uncertainty.

This is an important leadership principle: the emotional state of a commander can become part of the battlefield.

A frightened commander tells his soldiers that the situation is hopeless.

A calm commander tells them that a solution may still exist.

The novel turns that principle into an almost theatrical performance.

The Empty Fort Strategy as a Game of Incomplete Information

Modern readers can also understand the episode through game theory.

Sima Yi knows the size of his own army.

Zhuge Liang knows the size of his own force.

But neither commander knows exactly what the other commander knows.

This creates multiple layers of uncertainty:

• Zhuge Liang knows his city is weak.
• Sima Yi knows the city appears weak.
• Zhuge Liang knows Sima Yi knows that the city appears weak.
• Sima Yi knows Zhuge Liang understands his reputation for caution.
• Zhuge Liang relies on Sima Yi interpreting the open gates as deliberate.

Once the commanders begin reasoning about each other’s reasoning, the battlefield becomes a psychological game.

The guqin is simply the visible symbol of that game.

Why Sima Yi Does Not Simply Send Scouts

One of the most common modern criticisms of the story is that Sima Yi could simply have sent a small reconnaissance force into the city.

That criticism is reasonable.

Real commanders would normally seek additional intelligence before committing their main force.

But this criticism also reveals the difference between historical analysis and literary storytelling.

The novel is not primarily interested in realistic reconnaissance doctrine. It is interested in the dramatic confrontation between two great strategists.

The story must therefore create a situation in which Sima Yi’s suspicion is strong enough to overcome the overwhelming military advantage of his army.

That is a literary requirement rather than a historical certainty.

Why Sima Yi’s Retreat Became Legendary

The retreat is memorable because it reverses the expected outcome.

The weaker army survives.

The stronger army retreats.

The defeated commander appears victorious.

The victorious commander appears cautious.

That reversal is exactly what makes the scene so satisfying as a story.

Chinese historical literature frequently celebrates victories achieved through intelligence rather than brute force, and the Empty Fort Strategy became perhaps the clearest visual representation of that principle.

Empty Fort Strategy and “Winning Without Fighting”

The story is also closely connected to a broader ideal in Chinese strategic thought: the best victory is often achieved without a costly battle.

Zhuge Liang does not need to kill Sima Yi’s soldiers.

He does not need to destroy their weapons.

He does not need to burn their supplies.

He only needs to make the army turn around.

The objective is therefore achieved without physical combat.

This is why the Empty Fort Strategy has remained such a powerful strategic metaphor.

What Happens After the Empty Fort Episode?

In the literary narrative, the withdrawal gives Zhuge Liang the opportunity to escape the immediate crisis and retreat toward Shu-controlled territory.

The first Northern Expedition nevertheless ends in failure.

Ma Su is punished.

Zhuge Liang accepts responsibility.

The Shu army withdraws.

Later Northern Expeditions continue the struggle against Wei, and Sima Yi eventually becomes Zhuge Liang’s principal military opponent.

The rivalry therefore does not end at Xicheng.

It becomes a recurring theme in the later narrative.

The Later Zhuge Liang–Sima Yi Rivalry

Zhuge Liang – 诸葛亮 – Gia Cát Lượng

The historical rivalry between Zhuge Liang and Sima Yi became particularly important during the later Northern Expeditions.

By the time of the later campaigns, Sima Yi had become a major Wei commander in the west. The two men repeatedly faced each other around the frontier of Shu and Wei.

Their strategic styles differed sharply.

Zhuge Liang sought opportunities to force Wei into battle and break through the defensive system.

Sima Yi increasingly relied on patience, fortified positions, and denial of opportunities.

This later historical rivalry helped make the fictional Empty Fort Strategy feel believable to generations of readers. The two men really did become major strategic opponents, even though the famous Xicheng encounter belongs to literature.

Why the Story Became a Symbol of Psychological Warfare

Empty Fort Strategy ultimately survives because it expresses an idea that is much bigger than the Three Kingdoms.

Power is not always determined by what an opponent possesses. It can also be determined by what the opponent believes you possess.

A weak army can appear dangerous.

A strong army can appear vulnerable.

A calm commander can make an enemy nervous.

An open gate can become more frightening than a closed one.

The psychological battlefield can therefore become more important than the physical battlefield.

History or Fiction? The Most Accurate Answer

The most responsible conclusion is not that the Empty Fort Strategy is simply “true” or “false.” The evidence supports a more nuanced answer.

The famous Xicheng version is a literary legend. It is presented in Chapter 95 of Romance of the Three Kingdoms, where Zhuge Liang uses an apparently undefended city to frighten away Sima Yi’s army.

The first Northern Expedition of 228 AD is historical. Zhuge Liang really launched the campaign, and the Shu forces really suffered a decisive defeat at Jieting.

Ma Su’s defeat is historical. He really commanded the Shu force at Jieting, ignored Wang Ping’s warnings, and was defeated by Zhang He.

An older Empty Fort tradition does exist. Guo Chong’s account, preserved by Pei Songzhi, describes a remarkably similar episode at Yangping involving Zhuge Liang and Sima Yi.

But the older account is historically problematic. Pei Songzhi himself challenged its chronology, geography, and military plausibility.

Therefore, the best conclusion is that the Empty Fort Strategy is a literary transformation of an older and disputed strategic anecdote, rather than a securely documented event at Xicheng in 228 AD.

Why the Legend Still Matters

Historical authenticity is only one measure of an event’s importance.

The Empty Fort Strategy became famous because it captures the literary image of Zhuge Liang more perfectly than almost any other episode. He is surrounded by danger but remains calm. His army is weak, yet his confidence is overwhelming. His opponent possesses enormous physical power, yet becomes uncertain because he cannot understand what Zhuge Liang is thinking.

The story also captures the literary image of Sima Yi. He is intelligent enough to recognize that appearances can be deceptive, but that intelligence makes him hesitate when the evidence becomes ambiguous.

Neither man needs to fight.

The entire confrontation occurs inside their minds.

The Deeper Meaning of Empty Fort Strategy

At its deepest level, Empty Fort Strategy (空城计, Không Thành Kế) is not really about an empty fortress.

It is about uncertainty.

Zhuge Liang’s fortress is weak.

Sima Yi knows it may be weak.

But Sima Yi cannot be certain that the weakness is genuine.

That uncertainty is enough to prevent him from using his superior force.

The defender therefore transforms a military disadvantage into a psychological advantage.

That is why the story has survived for centuries.

It teaches that sometimes the most dangerous weapon is not the army waiting behind the wall.

It is the possibility that an army might be waiting there.

Final Thoughts: Zhuge Liang’s Greatest “Battle” May Have Been Psychological

The Empty Fort Strategy remains one of the most recognizable stories from the Three Kingdoms because it compresses an enormous amount of strategic thought into one unforgettable image: Zhuge Liang (诸葛亮, Gia Cát Lượng) sitting calmly above an open city gate while an overwhelming Wei army hesitates below.

The historical background is considerably more complicated. The first Northern Expedition of 228 AD was real. The Battle of Jieting was real. Ma Su really failed. Wang Ping really warned him. Zhang He really won the battle. Cao Rui really directed the Wei response. Zhuge Liang really withdrew and accepted responsibility for the defeat.

But the famous Xicheng confrontation between Zhuge Liang and Sima Yi belongs to the literary tradition.

An older version of the Empty Fort story survives in the Guo Chong tradition, but Pei Songzhi’s objections make it impossible to treat that account as straightforward historical fact.

The novel nevertheless transformed the disputed anecdote into a masterpiece of psychological storytelling.

It added Xicheng.

It added the guqin.

It added the sweeping soldiers.

It added the dramatic confrontation between Zhuge Liang and Sima Yi.

It added Sima Shi and Sima Zhao as observers of the extraordinary decision.

And it connected the whole scene to the real catastrophe at Jieting.

The result is much more than a military anecdote.

It is a story about how intelligence can become a weapon, how reputation can influence an enemy’s decisions, and how uncertainty can neutralize overwhelming physical power.

Most importantly, the Empty Fort Strategy demonstrates a principle that remains recognizable even outside ancient warfare: an opponent does not have to believe your bluff completely; he only needs to become uncertain enough to hesitate.

That is why the story continues to define the literary image of Zhuge Liang as a master of psychological warfare.

The fortress may have been empty.

The army may have been small.

The historical event may never have happened exactly as the novel describes it.

But the strategic idea became immortal.

Historical Figures Connected to the Empty Fort Tradition

Because the Empty Fort Strategy is often reduced to a story about only Zhuge Liang and Sima Yi, it is worth remembering the wider cast of historical figures surrounding the campaign and its literary development:

• Zhuge Liang (诸葛亮, Gia Cát Lượng) — Chancellor and supreme military strategist of Shu Han; the central figure of the Empty Fort legend.
• Sima Yi (司马懿, Tư Mã Ý) — Major Wei commander and Zhuge Liang’s great literary rival.
• Cao Rui (曹叡, Tào Duệ) — Wei emperor during the first Northern Expedition.
• Cao Zhen (曹真, Tào Chân) — Senior Wei commander responsible for major defensive operations against Shu.
• Zhang He (张郃, Trương Cáp) — Wei general who defeated Ma Su at Jieting.
• Ma Su (马谡, Mã Tốc) — Shu commander whose defeat at Jieting created the crisis behind the literary Empty Fort episode.
• Wang Ping (王平, Vương Bình) — Shu officer who warned Ma Su against abandoning the water supply and preserved part of the defeated army.
• Wei Yan (魏延, Ngụy Diên) — Shu general assigned to support the Jieting position.
• Gao Xiang (高翔, Cao Tường) — Shu commander stationed near Liuliu City.
• Zhao Yun (赵云, Triệu Vân) — Shu general who operated with Deng Zhi as part of the diversionary forces.
• Deng Zhi (邓芝, Đặng Chi) — Shu commander who accompanied Zhao Yun during the Jigu Valley operation.
• Jiang Wei (姜维, Khương Duy) — Shu commander who later became Zhuge Liang’s principal military successor.
• Guo Huai (郭淮, Quách Hoài) — Experienced Wei frontier commander involved in operations against Shu.
• Fei Yao (费曜, Phí Diệu) — Wei commander involved in the western campaigns.
• Dai Ling (戴陵, Đái Lăng) — Wei officer associated with the western defensive command.
• Xin Pi (辛毗, Tân Bì) — Wei strategist and political adviser involved in the campaign.
• Sun Li (孙礼, Tôn Lễ) — Wei officer involved in the defensive arrangements.
• Wei Yan (魏延, Ngụy Diên) — Important Shu field commander whose aggressive reputation contrasts with Zhuge Liang’s cautious literary style.
• Guo Chong (郭冲, Quách Xung) — Early Jin-period writer whose disputed anecdote supplied the oldest known version of the Empty Fort tradition involving Zhuge Liang and Sima Yi.
• Pei Songzhi (裴松之, Bùi Tùng Chi) — Fifth-century historian whose annotations preserved the Guo Chong story while challenging its credibility.
• Luo Guanzhong (罗贯中, La Quán Trung) — Traditionally credited with the later literary form of Romance of the Three Kingdoms that made the Xicheng story famous.

Sources and Historical References

• Chen Shou, Records of the Three Kingdoms (三国志, Sān Guó Zhì) — the principal historical source for the Three Kingdoms period.
• Pei Songzhi’s annotations to Zhuge Liang’s biography — preserves the Guo Chong anecdote concerning Yangping and explicitly raises doubts about its chronology and plausibility.
• Guo Chong’s “Three Anecdotes” concerning Zhuge Liang — the early tradition containing the older Empty Fort episode at Yangping.
• Romance of the Three Kingdoms, Chapter 95 — the principal literary source for the famous Xicheng Empty Fort Strategy and the guqin scene.
• Historical accounts of the Battle of Jieting — establish the 228 AD campaign, Ma Su’s defeat, Wang Ping’s actions, and Zhang He’s victory.

Related

Zhuge Liang

Sima Yi

Cao Rui

Cao Ren

Pang De

Guo Huai

Fei Yao

Dai Ling

Xin Pi

Sun Li

Ma Su

Wang Ping

Wei Yan

Gao Xiang

Zhao Yun

Jiang Wei

Liang Xu

Sima Shi

Sima Zhao

Deng Zhi

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