the ships on fire and they boarded the smaller boats behind. As the wind was very strong, the flaming ships sailed towards Cao Cao's warships at fast speed and caused them to catch fire as well. Cao Cao's ships were all burnt down and the flames also spread quickly to his camps on land. Zhou Yu then ordered an attack on Cao Cao's base and scored a major victory. Cao Cao retreated north with his surviving troops after his defeat. Zhou Yu and Liu Bei led their respective forces in pursuit of Cao Cao, but Cao had already fled. Battles of Jiangling After his defeat at Red Cliffs, Cao Cao returned to Xu (許; present-day Xuchang, Henan) and left Cao Ren and others behind to defend Jiangling County, the capital of Nan Commandery (). Zhou Yu and Cheng Pu led their troops towards Nan Commandery and were separated from Cao Ren's forces by the river. Liu Bei told Zhou Yu: "Cao Ren is defending Jiangling and he has much supplies in the city. He poses a big threat to us. I will send Zhang Yide with 1,000 men to accompany you, while you dispatch 2,000 troops to follow me. We will then cross the Xia River (夏水; a tributary of the Yangtze River starting from southeast of Shashi District and ending at north of Jianli County in Hubei) and attack Cao Ren's rear. When Cao Ren hears that we have infiltrated his rear, he will definitely retreat." Zhou Yu agreed to Liu Bei's suggestion. Zhou Yu later ordered Gan Ning to station at Yiling (夷陵; present-day Yichang, Hubei). Cao Ren sent a separate cavalry force to besiege Yiling, so Gan Ning sent an urgent request to Zhou Yu for reinforcements. Zhou Yu followed Lü Meng's advice and left Ling Tong to defend his current position while leading Lü Meng and others to help Gan Ning. After the siege at Yiling was lifted, Zhou Yu and his troops crossed the Yangtze River and attacked Jiangling, with Zhou personally participating in battle. He was hit on his right side by a stray arrow and had to retreat due to the severity of the wound. When Cao Ren heard that Zhou Yu was wounded and bedridden, he led his troops to outside Zhou Yu's camp and taunted the Wu troops. Zhou Yu got out of bed and personally inspected his men and encouraged