The Rebellion of the Seven States of Wu and Chu: The Ultimate Game Between Centralized Authority and Regional Separatism in Early Han

Introduction

The "Rebellion of the Seven States of Wu and Chu" was a major political crisis that erupted in the second year of Jingping under Emperor Jing of the Western Han (154 BC). Led by Liu Bi, the King of Wu, and Liu Wu, the King of Chu, seven vassal states launched a rebellion under the pretext of "cleansing the imperial court" (removing the emperor's corrupt ministers), attempting to overthrow the central government. This rebellion was a typical consequence of the expansion of power by "homonymous kings" (kings of the Liu family) following the earlier enfeoffment of "heteronymous kings" in the early Western Han. It also served as a pivotal turning point that allowed the Han house to completely end the military power of vassal kings and establish centralized imperial rule.

Core Knowledge Points

1. Background: The Loss of Control over Vassal Powers
After founding the Han Dynasty, Gaozu Liu Bang drew lessons from the fall of the Qin Dynasty and extensively enfeoffed his clan members as kings, aiming to protect the Liu family’s rule. However, by the time of Emperor Jing, the vassal states possessed independent administrative authority, tax rights, and even the right to mint coins. King Liu Bi of Wu, relying on the wealth of the fertile lower Yangtze River region (profits from boiling salt and casting iron), possessed national strength comparable to that of a minor emperor. He maintained a large private army for a long time and grew increasingly distant from the central court.

2. The Spark: The Conflict Between the "Reduction of Vassals" Order and Jia Yi’s Strategy
During the reign of Emperor Wen, Jia Yi proposed the strategy of "numerous small enfeoffments to weaken power," but it was shelved. During Emperor Jing's reign, Zhuo Cuo, the Minister of the Imperial Clan, strongly advocated for the "reduction of vassals," believing that powerful vassals would inevitably rebel. Zhuo Cuo successfully stripped parts of the counties from the states of Chu, Zhao, and others. King Liu Bi of Wu was furious and allied with the states of Chu, Zhao, Ji'nan, Zichuan, Jiaoxi, and Jiaodong to raise troops. Notably, the states of Zhao and Ji'nan actually surrendered quickly; the true core rebel forces consisted of six states: Wu, Chu, Jiaodong, Jiaoxi, Ji'nan, and Zichuan. Thus, historians refer to this event as the "Rebellion of the Seven States."

3. The Process: Zhou Yafu’s Surprise Strike and Siege
In the initial stages, the rebel army was unstoppable and advanced into the state of Liang. Emperor Jing was initially frightened and wanted to dismiss Zhuo Cuo to appease the situation, but Zhuo Cuo refused (arguing that the King of Wu was using the pretext of protecting him to mask his true intentions). Ultimately, the court appointed Zhou Yafu as Grand Minister of War to lead the army to suppress the rebellion. Zhou Yafu adopted the strategy of "avoiding their sharp edge and cutting off their supply lines." He firmly defended Changyi and cut off the rebels' resupply. When the Wu army ran out of grain and retreated, Zhou Yafu pursued them. Within three months, the rebellion was completely quelled, and King Liu Bi of Wu committed suicide after his defeat.

4. The Outcome: Institutionalization of Centralized Power
After the rebellion was quelled, the Han court did not simply execute the leaders. Instead, it took preliminary measures leading to the "Tui'en Ordinance" (Order of Enfeoffing Many Sons): it drastically reduced the fiefs of the vassal kings, stripped them of administrative and military power, and reduced them to nobles who merely enjoyed income from their estates, stripping them of the capacity to challenge the center. This laid the institutional foundation for Emperor Wu of Han later to implement the "Tui'en Ordinance," which completely dismantled the power of vassal kings.

Connection with the Book of Han

In the Book of Han written by Ban Gu, this event has rigorous historical records, primarily found in the "Biographies of the Seven Kings of Wu, Chu, etc." The Book of Han does not merely list battles; rather, by contrasting the fates of different vassals, it deeply reveals the evolution of the early Han political ecosystem.

1. Characterization and Evaluation: The Book of Han details the actions of Zhuo Cuo, Liu Bi, and Zhou Yafu. For instance, its portrayal of Zhuo Cuo both acknowledges his foresight and points out that his "ruthlessness" led to his tragic death, reflecting the internal fissures within the Han house during the reduction of vassals; its account of Zhou Yafu highlights his military talents, such as "strict discipline" and "divine judgment of the enemy."
2. Embodiment of Political Logic: The "Table of Feudal Kings" in the Book of Han uses charts to clearly show the changes in territory before and after the uprising of the seven states, intuitively reflecting the implementation trajectory of the "reduction of vassals" policy.
3. Projection of Historical View: Ban Gu adhered to the orthodox historical view of the "Great Unity" (Da Yitong) in the Book of Han. He defined the Rebellion of the Seven States as "unrighteous" (exceeding one's proper bounds), while viewing the central government's suppression of the rebellion as "restoring proper order." This narrative reinforced the historical memory of the legitimacy of Han centralization and provided key textual evidence for understanding the transition from the "parallel system of commanderies and kingdoms" to a "pure commandery system."

Through the records in the Book of Han, we can see that the Rebellion of the Seven States was not only a military conflict but also a historical pivot in the evolution of the Western Han political system, marking the shift from decentralization to centralization and from "parallel commanderies and kingdoms" to "direct central administration."