Fa Zheng
Liu Zhang of Yi Province became worried of possible attacks from Zhang Lu and Cao Cao, so he sent Fa Zheng to invite Liu Bei into his domain to help him defend against Zhang Lu and Cao Cao. Fa Zheng was unimpressed with Liu Zhang's governorship and wanted Liu Bei to replace his lord, so he urged Liu Bei to use the opportunity to take control of Yi Province. Liu Bei heeded Fa Zheng's suggestion and led his army into Yi Province, where he received a warm welcome from Liu Zhang. Liu Zhang sent Liu Bei to the station at Jiameng Pass in northern Yi Province to resist Zhang Lu.