The Case of King Qian of Zhao Dismissing Li Mu

In 229 BC, the Qin state invaded Zhao but was held back by the brilliant general Li Mu. Unable to win on the battlefield, Qin spies bribed Guo Kai, a trusted but corrupt minister of Zhao, to spread rumors that Li Mu was plotting rebellion. The young and weak King Qian of Zhao believed the slander, abruptly stripped Li Mu of his command, and ordered his arrest. When Li Mu refused to hand over military authority to protect the state, he was seized and executed. With Li Mu gone, the Zhao army collapsed, and Qin swiftly conquered Handan, the Zhao capital, in 228 BC, capturing King Qian and extinguishing the state.

Li Mu was forcibly removed from command and executed. Shortly after, the Zhao state fell entirely to Qin, and King Qian was taken prisoner, dying in exile.

Whether Li Mu was truly disloyal or a victim of a Qin-orchestrated conspiracy; the legitimacy of the king's decision to execute a defending general based on unverified rumors and the role of ministerial corruption in the miscarriage of justice.

The case became a timeless cautionary tale in Chinese history about how a foolish ruler's paranoia and reliance on treacherous advisors can doom a nation. It directly removed the last barrier to Qin's unification of China and profoundly shaped legal-political discourse, serving as a poignant symbol of the tragedy where a capable loyalist is destroyed by slander, thus accelerating dynastic collapse.