Zhuge Zhan
When the Wei forces started advancing towards Shu in September 263, the first half of Jiang Wei's plan worked – the Wei forces marched unopposed until they reached Han (漢; in present-day Mian County, Shaanxi) and Yue (樂; in present-day Chenggu County, Shaanxi) counties, which served as bait to wear out the enemy. However, Zhong Hui sent two smaller detachments to attack the two counties and led the main Wei army further into Shu territory. In the meantime, Jiang Wei lost to the Wei generals Wang Qi (王欣) and Yang Xin (楊欣) and had to retreat to the highly fortified mountain pass at Jiange (劍閣; in present-day Jiange County, Sichuan). Upon learning that Jiang Wei's plan had failed and sown the seeds of destruction, Zhuge Zhan hastily assembled an army in Chengdu and moved to Fu County to prepare for a final defence.