Jiang Gan: Cao Cao's Guest in "Romance of the Three Kingdoms" and the "Stealing Letters" Anecdote

Brief Introduction

Jiang Gan, a renowned scholar of the late Eastern Han Dynasty, is recorded in both history and literature. However, in Luo Guanzhong's Romance of the Three Kingdoms, he is portrayed as Cao Cao's guest advisor and old friend. Jiang Gan's most well-known image is not defined by his learning, but by his failure before the Battle of Red Cliffs. Sent by Cao Cao to cross the river and persuade Zhou Yu to surrender, he was instead manipulated by Zhou Yu due to his own cleverness, leading Cao Cao to mistakenly execute his naval commanders. This character has become a typical representative of "outsmarting oneself" in classical Chinese literature and a classic case of strategic gaming in the Three Kingdoms stories.

Core Knowledge Points

* Identity: Cao Cao's guest advisor, a scholar from Jiangdong, and former classmate of Zhou Yu.
Key Event: Jiang Gan Steals Letters. This is a classic scene in Romance of the Three Kingdoms*. Jiang Gan attempted to use personal relationships to persuade Zhou Yu to surrender but was seen through by Zhou Yu, who set a counter-espionage trap.
* Process of Wit Battle: Zhou Yu pretended to be drunk and deliberately displayed forged letters suggesting Cai Mao and Zhang Yun were colluding with the enemy. Jiang Gan sneaked into the study at night, "stole" the letters, and believed he had achieved great merit, only to fall into the trap.
* Final Outcome: Upon seeing the letters, Cao Cao was furious and executed Cai Mao and Zhang Yun, the newly surrendered naval commanders. This caused chaos in the Cao army's naval command, laying the groundwork for the great defeat at Red Cliffs.
* Cultural Impact: It spawned the idiom "Jiang Gan Steals Letters," often used to metaphorically describe outsmarting oneself or being manipulated by others. In traditional operas like Peking Opera, Jiang Gan is also a common role for the young male lead (xiaosheng).

Connection to Book Content

Jiang Gan's story is primarily concentrated in Chapters 45 to 46 of Romance of the Three Kingdoms, set against the backdrop of the eve of the Battle of Red Cliffs. At this time, Cao Cao led a large army southward, while Zhou Yu commanded the Eastern Wu navy in resistance. Since Cao Cao was not skilled in naval warfare, he accepted the surrender of Cai Mao and Zhang Yun. Zhou Yu wanted to remove this naval threat but lacked a good opportunity, until Jiang Gan visited.

Through the character of Jiang Gan, the book highlights Zhou Yu's wisdom and Cao Cao's suspicious nature. Jiang Gan's "persuasion" was actually bait for Zhou Yu to implement a counter-espionage plot. This plot not only advanced the situation of the Battle of Red Cliffs but also enriched the character images: although Jiang Gan was a scholar, he appeared pedantic and credulous; Zhou Yu demonstrated the demeanor of a strategist who could "turn the enemy's fleet to ash with laughter and talk." It is worth noting that historically, although Jiang Gan did meet Zhou Yu, there was no letter-stealing incident; this was fictionalized by the novel for artistic effect.

Conclusion

Although not a protagonist in Romance of the Three Kingdoms, Jiang Gan is an important supporting character who drives a key turning point in the Battle of Red Cliffs. His failure was not only due to a lack of personal wisdom but also the result of Zhou Yu's careful planning. Understanding Jiang Gan helps readers gain a deeper understanding of the complexity of power struggles in Romance of the Three Kingdoms, the exaggeration of literary art, and the decisive role of "knowing oneself and the enemy" in warfare.

Keywords: Jiang Gan, Romance of the Three Kingdoms, Cao Cao, Zhou Yu, Jiang Gan Steals Letters, Battle of Red Cliffs, Counter-Espionage, Knowledge Popularization