Liu Fu oversaw the construction of Hefei fortress (合肥城), stocked with boulders, logs, and reserves of fish oil.
In late 208 after the Battle of Red Cliffs, Sun Quan led an army to invade Hefei but was unsuccessful despite several months of progress.
The following year, the local powers and two former subordinates of Yuan Shu and Liu Fu, Chen Lan (陳蘭) and Mei Cheng (梅成), rebelled in Lujiang (盧江) after the death of Liu Fu (whom they trusted), but the revolt was suppressed by Cao Cao's generals Zhang Liao and Zang Ba.
Around June or July 214, Sun Quan took advantage of heavy rains and floods in the Huai River region to sail up the Yangtze and attack Wan County (皖縣), which served as a billet and storehouse for Zhang Liao's and Xiahou Dun's armies.
Upon knowing Sun Quan had arrived on the battlefield, Zhang Liao moved out of Hefei fortress to reinforce Wan County.
However, Sun Quan's energetic troops took Wan County within a day, and Zhu Guang was captured along with his advisor Dong He (董和).
By the time Zhang Liao reached Jiashi (夾石), he received news of the fall of Wan County and withdrew to Hefei.
Liu Bei refused, and Guan Yu also drove away the officials Sun Quan sent to three commanderies in southern Jing Province.
Sun Quan then withdrew his elite generals from the northern frontier and ordered Lü Meng and Ling Tong to lead 20,000 troops to take the three commanderies of Jing Province, while sending Lu Su to lead 10,000 men to garrison at Baqiu (巴丘) to resist Guan Yu, while he personally stationed at Lukou (陸口) to serve as backup.
Lü Meng and Ling Tong took three commanderies by strategy and led their men with Sun Jiao and Pan Zhang to support Lu Su at Yiyang.
So he is actually instructing us to take advantage of the situation, when the enemy has just arrived and not fully gathered yet, to attack them and devastate their morale so as to calm our men and strengthen our defences.
"[4] Zhang Liao then selected 800 "die-hard" soldiers overnight in preparation for the upcoming battle, and threw a banquet for his men.
When Sun Quan saw that the advancing attack, he realised his danger and hurriedly recalled his retreating units, but they could not return in time.
[8] As Sun Quan's side was in confusion and battle signals were not given, Gan Ning drummed the other units to action, while he personally shot arrows at the enemy.
[9] Sun Quan hurried to the southern shore until he reached the crossing at Xiaoyao Ford, but the bridge had been destroyed, leaving a nearly 10 metre-long gap.
Gu Li, Sun Quan's bodyguard, told his master to sit tight, grab the reins firmly.
When the battle was over, Zhang Liao asked a captive soldier, "Who was that purple-bearded, long-bodied, short-legged man so skilled in mounted archery?"