蒋干 / Jiang Gan (late Han)

Overview

蒋干 / Jiang Gan is the Cao-side visitor whom Hanji 1113 presents as attempting to sound out or persuade 周瑜 after 赤壁之战.

Current Profile

The episode identifies Jiang Gan as a Jiujiang man and Zhou Yu’s fellow commandery man, giving 曹操 a preexisting social channel into the Wu commander’s camp. Jiang Gan approaches under the language of a private visit, but Zhou Yu immediately frames the possibility that he has come as a persuader.

His importance lies in the mission’s failure. Zhou Yu shows him the camp, stores, weapons, banquet treatment, and the trust binding him to 孙权. Jiang Gan returns with the judgment that Zhou Yu’s resolve cannot be moved by argument or money. The source therefore uses him less as a deceitful mastermind than as the observer who verifies the limits of transactional recruitment.

Key Characteristics

• Cao-side visitor using a same-region social connection to approach Zhou Yu.
• Possible persuader whose purpose is recognized before he can develop the pitch.
• Witness to Wu military resources, elite treatment, and leader-subordinate trust.
• Returns with an unfavorable but usable assessment that Zhou Yu cannot be bought or argued away.
• Source role is narrower than later fictional depictions associated with elaborate deception.

Evidence

• Social channel and mission: Hanji 1113 connects Jiang Gan to Zhou Yu through Jiujiang and presents the visit as Cao Cao’s persuasion attempt.
• Controlled reception: Hanji 1113 has Zhou Yu answer indirectly through a tour, banquet, and explicit loyalty statement.
• Mission result: Hanji 1113 says Jiang Gan reports that Zhou Yu is too resolute to be moved.

Qualifications

The exact commission, chronology, dialogue, camp display, and report are bounded to one popular-history account. This page does not import later Romance of the Three Kingdoms plots into the evidence. A failed persuasion mission does not prove that Jiang Gan was incompetent; his report may still have reduced uncertainty for Cao Cao.

What Changed

• Created a source-bounded profile centered on reconnaissance and failed persuasion.
• Distinguished the episode’s Jiang Gan from later fictional trickery narratives.
• Treated the negative report as information production rather than zero-value activity.

Relationships

• 曹操 - ruler whose side sends or benefits from the visit.
• 周瑜 - target whose resources and loyalty Jiang Gan assesses.
• 孙权 - ruler whose trust relationship with Zhou Yu blocks the persuasion attempt.
• 赤壁之战 - defeat that gives Cao Cao reason to test Wu cohesion.
• 利益结构式联盟脆弱性 - contrast case in which an embedded relationship resists immediate payoff switching.