The Campaign against Dong Zhuo was a punitive expedition initiated by a coalition of regional officials and warlords against the warlord Dong Zhuo in 190 in the late Eastern Han dynasty. The members of the coalition claimed that Dong had the intention of usurping the throne by holding Emperor Xian hostage and by establishing a strong influence in the imperial court. They justified their campaign as to remove Dong from power. The campaign led to the evacuation of the capital Luoyang and the shifting of the imperial court to Chang'an. It was a prelude to the end of the Han dynasty and, subsequently, the Three Kingdoms period.
In the 14th-century historical novel Romance of the Three Kingdoms, the campaign is memorable for at least two famous incidents: one is Guan Yu's slaying of Hua Xiong; the other is the three-on-one duel between the three sworn brothers (Liu Bei, Guan Yu, Zhang Fei) and Lü Bu. The two scenes are often reenacted in Chinese opera along with other famous scenes from the novel. Both incidents however, are fictional; Hua Xiong was captured and executed by Sun Jian after a brief battle. Liu, Guan and Zhang did participate in the campaign although their actions are not further described, with no mention that they dueled with Lü Bu, who, historically, was defeated by Sun Jian in battle.
Background
Following the death of Emperor Ling in 189, General-in-Chief He Jin summoned the frontier general Dong Zhuo from the northwest into the capital city of Luoyang. Dong was ordered to lead his troops into the capital city to aid He in eliminating the eunuch faction, the Ten Attendants, from the imperial court. However, before Dong Zhuo's arrival, He Jin's plan was revealed and he was assassinated by the eunuchs on 22 September 189. He Jin's associates led by Yuan Shao stormed the palace after the assassination and started massacring eunuchs. The young Emperor Shao and his younger brother, the Prince of Chenliu, were brought out of the palace by the surviving eunuchs during the chaos. The emperor lost the Imperial Seal during his escape. They were eventually discovered by a search party and escorted back to the palace safely by Dong Zhuo and his men.
Subsequently, the warlord Ding Yuan was killed by his subordinate Lü Bu for opposing Dong Zhuo's decision to depose Emperor Shao. Lü then defected to Dong's side.
In 190, Dong Zhuo deposed Emperor Shao and installed the Prince of Chenliu on the throne. The prince became historically known as Emperor Xian. Dong appointed himself as Chancellor of State, an official post abolished almost 200 years ago. On March 26 in the same year, Dong had Liu Bian (the former Emperor Shao) and Empress Dowager He killed.
Since then, Dong Zhuo had established a strong influence in the imperial court. He was authoritarian and showed no regard for the absolute monarchy as he made the final decisions on policies without consulting or seeking approval from the emperor. He eliminated several of his opponents in the imperial court to further strengthen his grip over the apparatus of state. Yuan Shao fled from Luoyang after openly disagreeing with Dong Zhuo's decision to depose Emperor Shao. Dong Zhuo feared that Yuan Shao might rise in revolt against him as Yuan was also an influential figure in politics as well. Dong heeded his advisor's suggestions and proposed to the emperor to appoint Yuan as Grand Administrator of Bohai as an act of appeasement.
Course of events
Formation of the coalition
While in Bohai, Yuan Shao was not appeased by Dong Zhuo's proposal to appoint him as Grand Administrator. He planned to start a coup d'etat to remove Dong from power by rising in revolt but he was kept in check by Han Fu, the Governor of Ji Province (冀州).
At the same time, the Grand Administrator of Dong Commandery, Qiao Mao, forged letters of accusation against Dong Zhuo, denouncing him as a traitor with the intention of usurping the throne, calling for a punitive expedition against Dong. These letters were distributed all around the nation in the name of officials from the capital. Regional officials and warlords all around China received the letters and responded to the call to remove Dong Zhuo from power.
In February 190, the Guandong Coalition (關東聯軍, literally: Coalition East of the Pass) was formed after several regional officials and warlords gathered east of Hangu Pass with their armies in response to the call for a punitive war against Dong Zhuo. Yuan Shao was elected to be the leader of the coalition. The forces of Sun Jian and Cao Cao also participated in the campaign under the banners of Yuan Shu and Zhang Miao respectively. The participants of the campaign included:
