The civil official Chang Chao was very upset to hear Sun Ch'uan's decision to fight Ts'ao Ts'ao.He went to see Sun Ch'uan with another civil official called "Ku Yung" and insisted that the enemy was too powerful to resist.Ku Yung added that Liu Pei simply wanted to use Wu Kingdom so that Shu Kingdom would not have to fight.Listening to their arguments,Sun Chuan lost his resolve.