The Battle of Red Cliff took place at the end of the Eastern Han Dynasty during the Three Kingdoms period. It was a famous battle. At that time, Shu Han, Dongwu and Cao Wei were confronting each other in the Jiangnan area. Cao Cao led the army to attack Dongwu while Sun Quan led the army to resist. In the end, Sun Quan defeated Cao Cao's army in the Battle of Red Cliff and established Dongwu's dominance in the Jiangnan area. The Battle of Red Cliff took place in the twelfth month of the lunar calendar. The weather was very cold. Cao Cao led the army to fight in the middle and lower reaches of the Yangtze River while Sun Quan led the army to defend the southeast of Red Cliff. Cao Cao sent his generals Zhang Liao and Guan Yu to attack Sun Quan's army, but they were repelled. Later, Cao Cao sent Liu Bei and Zhang Fei to attack, but they were also repelled by Sun Quan. During the Battle of Red Cliff, Sun Quan used the advantage of the navy to launch a fierce attack on the river. Cao Cao's army was trapped by the attack of the navy. At this time, Sun Quan sent troops to attack Cao Cao's camp and finally forced Cao Cao to retreat. After that, Sun Quan won the Battle of Red Cliff and established the dominance of Dongwu in the Jiangnan area.