Eastern Wu

Eastern Wu is one of the three kingdoms that rise from the fragmentation of the Han, alongside the regimes founded by Xuande and Cao Cao. Its decisive early choice is to resist Cao Cao rather than submit: allied with Xuande, Wu helps defeat the northern power and establishes the three-sided balance that gives the divided empire its defining political shape. The kingdom survives its founders’ generation, but its fortunes shift through warfare, imperial succession, and court struggles before Jin conquers it and reunites the realm.

Formation and strategic position

The novel frames the Three Kingdoms as powers carved from the failing Han: Xuande, Cao Cao, and Sun Quan each become the founder of a dynasty and a kingdom. Sun Quan’s position differs from Cao Cao’s. In Kong Ming’s strategic assessment, Cao Cao commands immense forces and controls the emperor, giving him the allegiance of many nobles; Sun Quan, though less powerful, has the support of the people in the south. That popular base makes Wu a potential ally rather than a natural enemy for Xuande.

When Xuande seeks Kong Ming’s counsel, the proposed strategic map places Cao Cao in the north, Sun Quan south of the river, and Jingzhou between them as the territory whose future will decide the balance of power. Kong Ming’s plan is not simply to add Wu to Xuande’s forces: it is to make the south, Jingzhou, and the north into three distinct powers, preventing Cao Cao from gathering the empire under his control. Wu’s identity in the novel is thus established through both territorial position and the political choice to preserve a counterweight to the northern court.

Choosing resistance and forming an alliance

Kong Ming argues to Sun Quan that Cao Cao’s army, despite its size, is exhausted by long travel, unfamiliar with naval warfare, and composed of conscripts with little will to fight. If Sun Quan links up with Xuande, Kong Ming says, the combined resistance can undermine that already weakened force and create a three-legged state. Sun Quan’s doubts give way, and he agrees to join Xuande against Cao Cao. His decision does not end disagreement at court: advisers led by Zhang Zhao argue that resistance would be disastrous, and Sun Quan hesitates again.

The precedent that finally guides the choice comes from Sun Ce. Sun Quan’s mother recalls her sister’s report of Sun Ce’s advice: Zhang Zhao should be heard on domestic matters, but Zhou Yu on external affairs. Zhou Yu makes the case for war by pointing to Cao Cao’s exposed northern flank, his move from land warfare to a naval campaign, the scarcity of winter forage, and the unfamiliar climate. Sun Quan rises, draws his sword, and gives Zhou Yu command of the forces, with Cheng Pu and Lu Su as his seconds in command. The alliance is therefore presented not as an automatic consequence of geography, but as the outcome of deliberation over military conditions, inherited counsel, and the question of who is qualified to advise the ruler.

The alliance at war

Wu’s alliance with Xuande becomes decisive in the campaign against Cao Cao. During the attack on Cao Cao’s chained fleet, Huang Gai signals the fire attack with a raised sword. Twenty fireboats, driven by the wind, strike the chained ships; because the vessels cannot escape one another, the flames spread rapidly across the fleet. Catapults from the southern shore add to the assault. The scene gives practical force to the alliance: Wu’s command of the river and its naval resources turns Cao Cao’s fleet into a liability, while the coordinated attack helps break the northern advance.

The alliance remains important after the immediate victory, even as distrust persists. Zhou Yu, carried away by his men after another confrontation, writes from his sickbed to Sun Quan seeking revenge on Xuande. Zhang Zhao counsels caution, warning that Cao Cao is held at bay only by the fear created by the union of Sun Quan’s and Xuande’s armies. The political bond is therefore both a military necessity and a source of tension: Wu’s leaders may resent Xuande’s position, but separation risks restoring Cao Cao’s freedom of action.

Later, after Wu’s defeat of Cao Xiu, Lu Xun proposes a renewed alliance with Shu for a joint attack on Wei. Sun Quan supports the plan, and Wu sends a letter to Shu. After Sun Quan takes the imperial title, however, the proposed relationship becomes harder to manage: the Shu ruler initially sees the new emperor as a rebel. Kong Ming nevertheless recommends congratulating him and encouraging Lu Xun to attack Wei, since that would draw Sima Yi south and allow Shu to strike elsewhere. The episode shows alliance continuing as a calculated instrument even when the two sides disagree over political legitimacy.

Imperial authority and internal succession

Wu’s claim to imperial standing develops alongside the competing claims of Wei and Shu. In the early summer of 229, after reports of auspicious signs and repeated appeals from his advisers, Sun Quan accepts the Mandate of Heaven and is enthroned as emperor. Zhang Zhao urges him not to rush directly into war after the ceremony, but first to establish order, found schools, build alliances, and plan carefully. Wu’s imperial elevation thus carries obligations of governance as well as an assertion of rank.

Sun Quan dies in early 252, six months after a storm overturns tall trees around the Sun family shrine and his illness becomes serious. He had ruled for twenty-four years and was seventy-one. His death marks a transition from the long personal authority of Wu’s founder to increasingly dangerous struggles around the succession and control of the court.

By 258, Sun Chen has seized power and appointed relatives to important positions. He brings Sun Xiu, a bewildered relative of the deposed ruler, to the throne against Sun Xiu’s wishes, then becomes prime minister. When Sun Chen later attempts to take imperial power for himself, Sun Xiu and Zhang Bu enlist the veteran commander Ding Feng in a plan to overthrow him. At a festival, a fire serves as the signal: Sun Chen rises, expecting the event to bring his guards, but is instead confronted by Zhang Bu and seized. Sun Xiu refuses his request for internal exile and orders his execution, citing the people Sun Chen had arbitrarily killed. This reversal restores authority to the ruler, but the need to recover it through conspiracy and force reveals how vulnerable Wu’s court has become.

Conquest and the end of the three kingdoms

The final transfer of Wu’s rule begins after Sima Yan overthrows the Wei emperor. Sun Xiu understands that the change leaves Wu in serious danger; distressed, he falls ill and can no longer speak. He indicates that his heir, Sun Wan, and the prime minister, Puyang Xing, should assist one another, then dies. Military officers reject the young heir as inadequate to the crisis and press instead for Sun Hao, son of Sun He. Sun Wan is assigned a small region to govern, and Sun Hao becomes emperor in 265. His later cruelty and oppressive taxation weaken the country further, leaving the regime less able to meet the approaching invasion.

Jin attacks Wu from multiple directions, while its navy advances down the river. Wu attempts to block the fleet with iron chains stretched across the water and spikes sunk into the channel. The opening engagements expose the limits of these defenses: Jin uses a feigned retreat to draw Wu’s troops into an ambush, captures Xiakou through soldiers who enter among the fleeing forces, and takes further cities as Wu’s morale collapses. The iron barriers are overcome when Wang Jun sends fire ships against them; the heat melts the chains and breaks apart the spikes, clearing the way for the fleet.

Wu’s commanders and prime minister Zhang Ti advise surrender, but Zhang Ti argues that accepting the kingdom’s end without fighting would dishonor it. Jin’s advance continues, and Wu falls. At the victory feast, the Jin ruler mourns that Yang Hu did not live to see the success. Sun Hao, brought before him, answers the ruler’s remark that a seat had awaited him with a joke of his own; he is given a minor role, as are honourable Wu officials and their descendants. The closing outcome is explicit: the three kingdoms are once again one under Jin. Eastern Wu’s history thus completes the novel’s recurring movement from imperial division toward reunification, while its own trajectory—from alliance and military power to court instability and conquest—shows how a state can outlast its founding moment yet fail to preserve the conditions of its survival.