馬謖
In 228, Wei's rival state Shu Han (or Shu) launched the first of a series of invasions on Wei territories in Yong Province. Zhuge Liang, the Imperial Chancellor of Shu, led the campaign and deployed his troops at Mount Qi (祁山; the mountainous areas around present-day Li County, Gansu). He then sent Ma Su to lead the Shu vanguard to attack Jieting (街亭; in present-day Qin'an County, Gansu) and Gao Xiang to lead another force to station at Liucheng (柳城; in present-day Zhangjiachuan, Gansu) as backup for Ma Su.