临洮县
In the winter of 262, Jiang Wei led Shu forces to occupy Taoyang County (洮陽縣; in present-day Lintao County, Gansu) and attack Wei forces led by Deng Ai at Houhe County (侯和縣) but they lost the battle. He retreated to Tazhong (沓中; northwest of present-day Zhugqu County, Gansu) and garrisoned there.