”Sun-Liu Alliance” was the strategic alliance bwtween Sun Ch'uan and Liu Pei formed in Han Shian Ti 13th year (208 A. D.), before the Chr Bi War. Jing Jou was a strategic place over which the Sun Ch'uan intended to use it as a fortress against enemies from west. Liu Pei wanted to build it as the base for fulfilling his ambition as the Emperor. Ts'ao Ts'ao planned to take it as the bvridgehead for coquering Jiang Dung. Eventually Ts'ao Ts'ao got Jing Jou. This resulted in the two weaker groups, Sun Ch'uan and Liu Pei, to form an alliance to fight against the more powerful Ts'ao Ts'ao. Chr Bi War included four campaigns: happen campaign at Chr Bi, fire attack campaign at Wu Ling, pursue and attack campaign at Hua Rong, surround campaign at Jiang Ling. The result of Chr Bi War , Ts'ao Ts'ao was defeated, but he still occupied the northland of Jing Jou. Sun Ch'uan occupied the centralland of Jing Jou. Liu Pei occupied the southland of Jing Jou. Chr Bi War settled the foundation and putted in shape of Three Kingdoms.