We said that Liu Bei was not a vassal before, and after Battle of Red Cliffs, some parts of Jingzhou barely had their own territory. Later, Liu Zhang invited Liu Bei to attack Zhang Lu in Shu. Liu Bei took Liu Zhang's money, grain and army, but did nothing and took Yizhou in Liu Zhang. As a minister of a town, Zhang Lu clashed with Liu Bei's strategy, which is very natural. Perhaps Zhang Lu decided that if he joined forces with Liu Bei, even if he repelled Cao Cao's army, he would eventually be annexed by Liu Bei, and Liu Zhang was a warning.
Zhang Lu is the grandson of Zhang Daoling, the founder of Taoism in Shi Tian. At the end of the Eastern Han Dynasty, the number of people who believed in Taoism in Shi Tian gradually increased. When Zhang Lu took over as the head of Taoism in Shi Tian, there were a large number of Shi Tian Taoist believers in Hanzhong, which became a force to be reckoned with. According to historical records, Zhang Lu's mother is good at keeping in good health, "a little capable", and "carrying ghosts" often come and go to Yizhou herdsman's house, which is favored by (Liu Zhang's father), because this relationship has been reused by Zhang Lu. Later, Ada sent Zhang Lu to conquer Hanzhong. After Zhang Lu captured Hanzhong, he gathered believers to rebel against Liu Zhang. At that time, Zhang Lu's mother and younger brother were still in Yizhou, and when Liu Zhang succeeded as Yizhou Pastoral, Zhang Lu became more and more arrogant in Hanzhong, so Liu Zhang killed Zhang Lu's mother and younger brother, and Zhang Lu and Liu Zhang had an issue.
This "blood feud" between Zhang Lu and Liu Zhang is supposed to have nothing to do with Liu Bei, but it is not. Liu Bei's attack on Yizhou was almost a "blitzkrieg" game. At that time, there were not a few folk military commanders in Liu Zhangzhong who defected to Liu Bei. In other words, Liu Bei's present civil and military team is mostly an old minister Zhang except Jingzhou secretariat. Zhang Lu attacked Yizhou one after another, but these people may not be able to hold him, so after he surrendered to Liu Bei, he was bound to be excluded internally. Moreover, Ma Chao defected to Zhang Lu and was taken in by Zhang Lu in desperation, but Ma Chao led the army into Shu and surrendered to Liu Bei. Liu Bei accepted Ma Chao, and Zhang Lu has been bitter about it, as if betrayed by a broken heart and cuckolded by Liu Bei. Do you think he will have a good impression on Liu Bei?