Xu Da: Zhu Yuanzhang's Preeminent Meritorious Officer and the Pivotal Role in the Battle of Caishi

Brief Introduction

Xu Da (1332–1385), courtesy name Tiande, was a native of Haozhou (modern-day Fengyang, Anhui Province) and an outstanding military commander of the Ming Dynasty. As the most trusted and relied-upon general of Zhu Yuanzhang (Emperor Taizu of Ming), Xu Da achieved illustrious military accomplishments throughout his life, participating in almost every major campaign from the initial uprising against the Yuan Dynasty to the establishment of the Ming Dynasty. During the Hongwu era, he was enfeoffed as the Prince of Zhongshan and ranked first among the "Six Dukes of the Founding Generation," earning the title "Number One Meritorious Officer of the Great Ming." Among these feats, the Battle of Crossing the Yangtze to Attack Caishi was a turning point in his military career and one of the most strategically significant battles in the process of establishing the Ming Dynasty.

Core Knowledge Points

1. Strategic Background of the Battle of Caishi

At the end of the Yuan Dynasty, various powerful warlords rose up. Zhu Yuanzhang's forces gradually grew strong, but the north remained under the control of residual Yuan Dynasty forces. To unify the Jiangnan (south of the Yangtze) region, Zhu Yuanzhang decided to launch the eastern front of the Northern Expedition, first seizing the strategic stronghold of Caishi Weir on the northern bank of the Yangtze River (located in modern-day Ma'anshan, Anhui Province). Caishi Weir stands in opposition to Niuzhu on the southern bank; it is a critical chokepoint for controlling waterways on the Yangtze and serves as a bastion for Jinling (Nanjing).

2. Execution of Xu Da's Tactics

In the Battle of Caishi, Xu Da fought in coordination with generals such as Chang Yuchun. Facing the Yuan army's solid defensive fortifications, Xu Da employed the tactic of "making noise in the east to strike in the west, and flanking to envelop." He led the main force in a frontal feint attack to draw the Yuan army's main forces, while simultaneously dispatching elite troops to maneuver around to the Yuan army's flank, cutting off their retreat. Ultimately, the Ming army successfully captured Caishi, causing the main Yuan forces to rout, which laid the foundation for the subsequent crossing of the Yangtze to capture Jinling.

3. Characteristics of Xu Da's Military Style

• Steady and Practical: Xu Da's combat style was steady, placing high importance on troop deployment and logistical support, and he rarely suffered defeats due to reckless advances.
• Loyal and Reliable: At critical moments of political transition, Xu Da consistently upheld Zhu Yuanzhang's authority and did not participate in any political factional struggles.
• Skilled in Personnel Management: He and Chang Yuchun formed a complementary pair—one "steady" and one "fierce"—creating the most combat-effective combination of generals in the early Ming period.

Connection to the Continued Zizhi Tongjian

It is necessary to clarify: *The Continued Zizhi Tongjian primarily records history from the Southern Song Dynasty and later, but its compilation process involves the historical narrative from the late Yuan to the early Ming Dynasty. Strictly speaking, Xu Da's main achievements are recorded in official Ming historical texts such as the Ming Shilu (Veritable Records of the Ming) and Ming Shi (History of the Ming), as well as in the Continued Zizhi Tongjian compiled by Li Zhi (Li Zhi's version). When compiling the Continued Zizhi Tongjian*, Li Zhi paid special attention to the historical turning point of the late Yuan and early Ming dynasties, viewing the Battle of Caishi as a key node in the "transfer of the Mandate of Heaven."

In Li Zhi's narrative, the Battle of Caishi was not merely a military victory but was also imbued with the political meaning of "following the will of the people." The book emphasizes that after Xu Da captured the cities, he "did not seize even a strand of hair" (acted with strict discipline and did not pillage), winning the support of the common people in Jiangnan. This stood in stark contrast to the brutality of the late Yuan warlords. This mode of narration reflects the characteristic of the Continued Zizhi Tongjian of going beyond mere recording of military events to emphasize historical ethical judgment.

Conclusion

Xu Da's performance in the Battle of Caishi not only consolidated the political foundation of Zhu Yuanzhang but also established his lofty status among the meritorious officers of the founding of the Ming Dynasty. Through records in historical texts such as the Continued Zizhi Tongjian, we can see that the Battle of Caishi is not only a classic case in military history but also an important window for understanding the construction of political legitimacy in the early Ming period. Xu Da's loyalty, steadiness, and wisdom have made him one of the most respected generals in Chinese history.