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Lu Su

Courtesy nameZijing

The Wu Strategist Who Championed the Alliance With Liu

Best of the Rank and File · Fierce Generals & Fine Strategists

DiplomacyForesightAlliance

Who they are

One of the few long-view strategists in the Wu camp, who early proposed to Sun Quan a Jiangdong version of the Longzhong Plan — "hold the Yangtze to its end, take it and possess it, then declare yourself emperor and seek the realm." Before Red Cliffs he firmly championed alliance with Liu Bei against Cao Cao, the most important promoter and keeper of the Sun–Liu alliance. The novel casts him as a good-natured go-between shuffling between Zhou Yu and Zhuge Liang, but the historical Lu Su was the true architect of Wu’s diplomatic strategy.

Primary sourcesChen Shou, Records of the Three Kingdoms, Book of Wu, Biography of Lu Su

Key stories

The Bedside Plan: Jiangdong’s Version of the Longzhong Plan

On first meeting Sun Quan, Lu Su dismissed the attendants and offered his strategy: "the Han house cannot be revived, Cao Cao cannot be removed at a stroke; your best course is to stand as a third power in Jiangdong and watch for the realm’s dissensions... and then declare yourself emperor and seek the realm." This "bedside plan" came seven years before Zhuge Liang’s Longzhong Plan and foresaw the three-way division just as precisely — Lu Su’s most underrated achievement as a strategist.

Championing the Alliance With Liu, Forging the Red Cliffs Pact

With Cao Cao’s army at the gates and the Jiangdong court awash in cries for surrender, Lu Su told Sun Quan privately, "someone like me may go over to Cao — but you, my lord, may not," making plain that surrender would harm Sun Quan himself, and firming his resolve to resist. He then went in person to Jing province to make contact with Liu Bei and Zhuge Liang, single-handedly forging the Sun–Liu alliance and setting the diplomatic frame for the victory at Red Cliffs.

Version differences

The novel makes Lu Su a good-natured peacemaker shuffling between Zhou Yu and Zhuge Liang; in the histories he was a strategist of rare vision, his "bedside plan" coming seven years before Zhuge Liang’s Longzhong Plan — his strategic gift is markedly underrated in the novel.

Relationships

Strategist

🌊Sun Quan　Chief advocate of the alliance with Liu against Cao

Ally

🪶Zhuge Liang　Forged the Sun–Liu alliance

Echoes today

Below are how modern works borrow or reinterpret this name or story — not the original material. The two differ, so keep them apart.

"The bedside plan"Often set beside Zhuge Liang’s Longzhong Plan as the Wu version of a strategy for the three-way division of the realm.

Appears in

Red Cliffs and the Three-Way DivisionThe Battle of Red Cliffs: The Flesh-Wound Ruse and the East Wind

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