李牧
Eliminating Li Mu became a necessity for Qin to conquer Zhao and ultimately to unify China. In 229 BC, in light of Wang Jian's invasion of Zhao, the Qin sent spies to the Zhao court, bribing key courtiers such as Guo Kai (郭開) and Han Cang (韓倉) in order to convince them to persuade the King of Zhao to replace Li Mu and Sima Shang (司馬尚) with Zhao Cong (趙蔥) and Yan Ju (顏聚) as generals by alleging that the former were planning a rebellion. The plan succeeded.