Liu Pei and Chou Yu's forces pursued Ts'ao Ts'ao's troops until they got to Nanchun.Farther on,at Chiangling,Ts'ao Ts'ao finally stopped to rest.Only a few hundred of his soldiers had survived the battle and the escape.Ts'ao Ts'ao then asked his generals Ts'ao Jen and Hsu Huang to defend Chiangling and assigned General Yueh Chin to defend Hsianyang.Ts'ao Ts'ao himself led the rest of his troops back to the north.The Battle of Red Cliff left the Shu and Wu Kingdoms in control of the south and Ts'ao Ts'ao in control of the north.Thus,China was divided among three rival powers,and that period is called Three Kingdoms.