 Complete the following phrase:  When Sun Ce died in 200, Cheng Pu, along with Zhang Zhao and others, pledged allegiance to Sun Quan Sun Ces younger brother and travelled around Sun Quans territories to attack those who refused to submit to the new lord. Under Sun Quan, Cheng Pu fought at the Battle of Jiangxia in 208 and aided in the conquest of Lean  when he passed by Yuzhang . He later replaced Taishi Ci as the commander of a garrison at Haihun . During the Battle of Red Cliffs of 208-209, Cheng Pu and Zhou Yu served as the Left and Right Commanders of Sun Quans army respectively, and scored a major victory in the battle against Cao Caos forces. Cheng Pu and Zhou Yu also led Sun Quans forces in the subsequent 