The collapse of the Eastern Han Dynasty ushered in the drama of the Three Kingdoms.The Battle of Guandu laid the foundation for Cao Cao's unification of the Yellow River Basin. The Battle of Chibi established the preliminary pattern of the Three Kingdoms' tripartite confrontation. The Battle of Yiling was the final shape of this pattern.The three kingdoms of Wei, Shu and Wu stood in a powerful position. How could Cao Cao, Liu Bei, Sun Quan and others stand out?