Lu Su

Lu Su is an adviser to Sun Quan whose political judgment and diplomatic labor help define Wu’s response to the collapsing Han and the rise of Cao Cao. He is both a proponent of strategic cooperation and a guarantor of agreements with Xuande’s camp, repeatedly trying to turn shared danger into a durable partnership even as the contested possession of Jingzhou threatens to undo it.

Background and Political Judgment

Lu Su enters Sun Quan’s court on the recommendation of Zhou Yu, who describes him as honest, virtuous, generous to the poor, and devoted to his mother. Zhou also praises his abilities as a thinker, planner, and military adviser. Lu Su’s character is therefore introduced through a combination of public usefulness and private ethical conduct: he can assist an army with grain and is presented as a capable adviser, while filial devotion and generosity mark his personal reputation.

In a private discussion, Sun Quan asks what course he should take as the Han approaches collapse. Lu Su answers without endorsing a restoration of the old order: the Han’s time has passed, Cao Cao controls the court, and Sun Quan should consolidate power in the south before seeking control of the wider country and founding a new dynasty. The advice gives Sun Quan a coherent political direction and delights him. It is a clear contrast with Xuande’s continuing claim to serve and restore the Han: Lu Su treats the dynasty’s collapse as a strategic reality, while Xuande’s advisers frame Han lineage and loyalty as grounds for renewed rule.

Alliance Against Cao Cao

When Cao Cao’s advance into Jingzhou brings his forces close to Wu, Lu Su becomes a key intermediary in the effort to align Wu with Xuande. Wu sends him to propose joint resistance, while Kong Ming is independently urging Xuande to form the same alliance. Lu Su’s mission meets a policy already being pursued in the other camp, allowing the threatened parties to explore cooperation against a much stronger northern enemy.

At Sun Quan’s court, Lu Su advises against accepting Cao Cao’s offer of partnership. Sun Quan has received a letter framed in the formal language of imperial command and remains uncertain in the face of advisers who favor compliance. In private, Lu Su gives his own counsel and tells Sun Quan that Kong Ming has accompanied him. Sun Quan is surprised and pleased by the news. Lu Su’s support matters in a court divided over the proposal: he helps keep open the possibility of resistance and brings the opposing camp’s strategist directly into Wu’s deliberations.

The military argument for resisting Cao Cao is ultimately made by Zhou Yu, who challenges the appearance of overwhelming numbers by separating Cao Cao’s northern troops from the conscripted soldiers formerly serving Yuan Shao. Lu Su’s role is distinct: he supports the alliance and counsels against accommodation, while Zhou Yu makes the case for the army’s ability to fight. Yet the cooperation does not erase political rivalry. Zhou Yu, troubled by Kong Ming’s influence over Sun Quan, considers removing him; Lu Su warns that killing Kong Ming while the struggle with Cao Cao continues would be a serious mistake. He proposes instead that Zhuge Jin try to persuade his brother to enter Sun Quan’s service. Even as he backs Wu’s interests, Lu Su argues against allowing suspicion of Kong Ming to destroy the immediate strategic partnership.

Adviser and Diplomatic Broker

Lu Su’s assistance to Kong Ming becomes concrete during the plan to obtain arrows. When Zhou Yu imposes a demand for one hundred thousand arrows within a short deadline, Kong Ming asks Lu Su for twenty boats, thirty men for each boat, and a thousand straw bales covered with black cloth. He also asks Lu Su not to tell Zhou Yu about the plan. Lu Su supplies the requested materials, although he is bewildered by Kong Ming’s apparent lack of preparation during the first two days. His participation is not simply rhetorical support for cooperation: he furnishes the means on which Kong Ming’s stratagem depends, while keeping the secret from Zhou Yu as requested.

Later, Lu Su serves as an envoy after Zhou Yu’s anger over the loss of Nanjun and Xiangyang leads him to consider attacking Xuande’s side. Lu Su refuses to join that proposal and is instead sent to try to repair relations. At Xuande’s headquarters in Gong’an, he is impressed by Kong Ming’s abilities and by the appearance of the army. But the discussion turns on whether Xuande’s side has taken Wu’s territory without right. Kong Ming rejects Lu Su’s claim, invoking Xuande’s imperial family connection and his relationship to Liu Qi to defend his hold over the lands. The exchange shows the limits of Lu Su’s diplomacy: he can bring the dispute to the table, but the two sides interpret both the territory and the obligations surrounding it differently.

The death of Liu Qi renews the question of Jingzhou. Lu Su arrives to offer condolences, and Xuande and Kong Ming receive him warmly, even meeting him outside the city walls. Once Lu Su raises the possibility that Jingzhou should be surrendered under the earlier agreement, the atmosphere changes. Kong Ming argues that Xuande’s imperial lineage and kinship with Liu Qi make his care of Liu Qi’s lands defensible. Lu Su is eventually persuaded to sign an agreement that Xuande will hand over Jingzhou after conquering other territories where he can establish a base. The document provides a condition for a future transfer, but it does not settle the immediate problem; its promise becomes a recurring source of tension.

Jingzhou and the Limits of Accommodation

When Xuande’s promise is again tested, Lu Su is caught between Sun Quan’s demand for the territory and the terms he had guaranteed. After Zhuge Jin returns from Xuande’s camp without securing a settlement, Sun Quan summons Lu Su and proposes inviting Guan Yu to a banquet at Lukou. Sun Quan says he will attempt to persuade Guan Yu to surrender the territory and, if persuasion fails, have him killed. Lu Su is made the instrument of a dangerous negotiation, even though the plan’s threat of violence stands uneasily beside his earlier efforts to secure agreements.

Guan Yu accepts the invitation despite Guan Ping’s warning that it is a trap. He arrives by river with Zhou Cang, carrying a large sword, and with several formidable warriors. Lu Su invites the party into his tent but, conscious of his deceptive role, cannot look Guan Yu in the eye; Guan Yu, by contrast, behaves as though nothing is amiss. When Lu Su raises the territorial dispute, Guan Yu objects that a banquet is no place for state affairs. Lu Su nevertheless argues that Sun Quan had lent Jingzhou to Xuande and that, after Xuande’s conquest of Shu, the promised territory should be returned. Guan Yu counters by invoking the sacrifices and risks Xuande had undertaken to help Wu and asks why those efforts should have brought so little in return. Lu Su replies that Sun Quan had given Guan Yu a base when he was in difficulty and that Xuande’s continued possession of both Shu and Jingzhou is dishonorable.

The meeting ends without Lu Su securing the transfer or Sun Quan’s proposed assassination. When Lu Su reports the failure, Sun Quan resolves to take Jingzhou by war. That decision is then suspended when news arrives that Cao Cao is preparing a large attack, forcing Wu to prepare for the northern threat instead. Lu Su’s work has prevented neither the breakdown of trust nor the renewed prospect of war; the larger danger merely postpones the conflict.

Legacy and Narrative Function

Lu Su’s later death is reported to Cao Cao by the diviner Guan Lu. The prediction that the south has lost its chief is followed by news confirming Lu Su’s death, while Xuande’s forces move against a pass in the west. The brief report places Lu Su’s passing within a wider pattern of shifting fronts and political losses, rather than giving it a separate scene of farewell.

Across his appearances, Lu Su functions as a practical broker between strategy and diplomacy. His ethical reputation and his advice help establish Sun Quan’s court, his opposition to an alliance with Cao Cao supports resistance, and his supplies enable Kong Ming’s arrow stratagem. In the negotiations over Jingzhou, however, his integrity cannot reconcile rival accounts of debt, kinship, territory, and political legitimacy. His career thus traces the Sun–Liu alliance’s central contradiction: cooperation is necessary against Cao Cao, but neither side abandons its competing claims. The story presents Lu Su as a persistent advocate of accommodation who works within that contradiction without being able to resolve it.