Cao Cao (155–220), courtesy name Mengde, was an outstanding politician, military strategist, and poet of the late Eastern Han dynasty. Through the strategy of 'commanding the emperor to control the lords,' he unified northern China, implemented the tuntian farming system to restore agricultural production, and championed meritocracy to recruit talent regardless of birth. His victory at the Battle of Guandu demonstrated his military genius.
As a leading figure of Jian'an literature, Cao Cao wrote stirring poems that remain widely quoted: 'Let us drink and sing, for life is how short!' and 'An old war-horse in the stable still aspires to gallop a thousand li.' His annotated edition of Sun Tzu's Art of War became a foundational military text. Cao Cao's multifaceted legacy—as both a shrewd political operator and a great literary talent—makes him one of the most debated and fascinating figures in Chinese history.