forces in Jing Province and the Jiangdong (or Wu) region. In the meantime, Liu Bei evacuated Xinye County and led his followers towards Xiakou, which was controlled by Liu Biao's elder son, Liu Qi. Cao Cao was worried that Liu Bei would occupy Jiangling County, which was abundant in military resources, before he did. He immediately ordered his troops to leave behind their heavy equipment and baggage, and move swiftly to Xiangyang. When Cao Cao reached Xiangyang, Liu Biao's younger son and successor, Liu Cong, surrendered to him without putting up resistance. After learning that Liu Bei had already passed by Xiangyang, Cao Cao personally led a 5,000-strong elite cavalry force to pursue Liu Bei. After travelling over 300 li in just one day and one night, Cao Cao and his riders caught up with Liu Bei at Changban and attacked him. During the battle, Liu Bei abandoned his family and fled, with only Zhuge Liang, Zhang Fei, Zhao Yun and a small number of soldiers accompanying him. Cao Cao's forces captured many of Liu Bei's followers and his equipment. Zhang Fei led 20 horsemen to cover Liu Bei's retreat. After destroying a bridge, he stood guard at one end (facing the enemy), brandished his spear, glared at the enemy and shouted: "I'm Zhang Yide. You can come forth and fight me to the death!" Cao Cao's soldiers were all afraid and did not dare to approach him. Liu Bei and his followers were hence able to retreat safely. Battle of Red Cliffs and after In 208, Liu Bei and Sun Quan combined forces and defeated Cao Cao at the decisive Battle of Red Cliffs. Liu Bei later took control of southern Jing Province, with his headquarters at Nan Commandery and Gong'an County. Zhang Fei was appointed General Who Attacks Barbarians () and Administrator () of Yidu Commandery. He was also enfeoffed as the Marquis of Xin Village (). He was later reassigned to serve as the Administrator of Nan Commandery. Yi Province campaign Earlier defence of Jing Province In 211, Liu Bei led an army to Yi Province to assist the governor Liu Zhang in countering the advances of a rival warlord, Zhang Lu of Hanzhong Commandery. He left Zhang Fei and others behind to guard Jing Province in his absence. Earlier in 209, Liu Bei married Sun Quan's younger sister Lady Sun to strengthen the alliance between him