How Did the Tang Dynasty Suppress the An Lushan Rebellion?

The An Lushan Rebellion (755–763 CE) was one of the worst civil wars in Chinese history and marked a major turning point for the Tang Dynasty. Although the revolt nearly brought down the empire at its start, the Tang government eventually managed to put it down by combining new military strategies, support from foreign allies, internal splits among the rebels, and steady leadership.

I. Origins of the Rebellion and the Rise of An Lushan

An Lushan, a general of mixed Sogdian and Turkic background, served as a military governor jiedushi) over three key northeastern regions—Pinglu, Fanyang, and Hedong. Because Emperor Xuanzong and his favorite concubine, Yang Guifei, trusted him deeply, he was able to build up enormous military strength along the northern frontier, and when people grew angry about government corruption and heavy taxes, he used that frustration to launch a revolt in December 755 from Fanyang (modern-day Beijing), claiming he wanted to “clean out” the corrupt officials around the emperor.

His army moved quickly, capturing Luoyang—the eastern capital—in early 756 and then taking Chang’an—the western capital—by mid-756, which forced the emperor to flee to Sichuan while his son Li Heng declared himself Emperor Suzong and set up a temporary court in Lingwu to gather loyal troops and plan a comeback.

II. Military Restructuring and Effective Command

The Tang’s ability to fight back depended on fast changes to how they organized their forces.

Strong Leadership: Emperor Suzong placed experienced commanders like Guo Ziyi and Li Guangbi in charge because both had already shown skill in earlier campaigns, and unlike the rebel leaders, they kept their armies disciplined and focused.

Shift to Professional Troops: Since the old militia system fubing) had broken down, the court began relying more on full-time soldiers and local garrisons that still answered to the central government.

Carefully Planned Offensives: After securing their base in the northwest, Tang forces launched step-by-step attacks that successfully retook Chang’an and Luoyang in 757 by keeping supply routes open and maintaining high morale among their troops.

III. Diplomatic Alliances and Foreign Intervention

Help from outside powers also played a big role in the Tang victory.

Uighur Assistance: The Tang made an agreement with the Uighur Khaganate, promising trade benefits and allowing Uighur soldiers to loot cities they helped recapture; in return, the Uighurs sent elite cavalry that proved essential in retaking both capitals, even though this deal caused serious damage to civilian life.

Other Outside Support: Smaller groups from Tibet, Central Asia (possibly connected to the Abbasid Caliphate), and other border areas also joined the Tang side, showing how wide-ranging the dynasty’s diplomatic ties still were despite the chaos.

IV. Disintegration Within the Rebel Camp

At the same time, the rebel movement kept falling apart from within.

Constant Leadership Changes: After An Lushan was murdered by his own son An Qingxu in 757, the rebel command changed hands again and again—first to Shi Siming, who later killed An Qingxu, and then to Shi Chaoyi, who ended up killing his father Shi Siming in 761.

Loss of Popular Backing: As the war dragged on, rebel troops increasingly forced villagers to join their ranks and seized food and supplies without payment, which turned many ordinary people against them.

Officers Switching Sides: Seeing that the Tang was gaining the upper hand, several rebel commanders decided to defect, bringing their men, weapons, and valuable battlefield knowledge with them.

V. Final Campaigns and Long-Term Consequences

By 762, under Emperor Daizong—who had just taken over after Suzong’s death—the Tang launched one last major push with fresh help from the Uighurs, and as Shi Chaoyi found himself cut off from allies and running out of options, he chose to take his own life in early 763, which officially ended the eight-year rebellion.

However, the price of victory was extremely high:  
Historians estimate that between 13 and 36 million people died from battle, starvation, or disease—possibly as much as one-sixth of the world’s total population at the time.  
The central government lost real authority over large parts of the country, as regional military governors gained near-independent power.  
Although the Tang Dynasty lasted until 907, it never returned to the level of unity, wealth, or control it had enjoyed before the rebellion.

Conclusion

The Tang did not win simply because of one great battle or a single clever move; instead, success came from several factors working together—solid leadership, outside help, the rebels’ own infighting, and consistent military pressure. While the dynasty survived, the rebellion permanently weakened China’s central rule and gave more power to local warlords.