Li Guangbi

Li Guangbi was appointed military governor of Shuofang, a key frontier command. He was of Khitan origin but loyal to Tang, and he began organizing defenses against the An Lushan Rebellion.

Li Guangbi defeated a Yan army at Jiayuguan (in modern Gansu), securing the northwestern frontier. This victory prevented the rebellion from spreading to the Silk Road regions and bought time for Tang counterattacks.

Li Guangbi led a campaign to recapture Taiyuan from Yan forces. Using a combination of siege tactics and cavalry raids, he retook the city, a major logistical center, and inflicted heavy casualties on the enemy.

Li Guangbi's forces were defeated by Shi Siming at Yancheng. The loss forced him to retreat and regroup, but he avoided total destruction and continued to harass Yan supply lines.

Li Guangbi played a key role in the final campaigns against Shi Chaoyi, the last Yan emperor. He coordinated with Uyghur allies and Tang forces to crush the rebellion, leading to its end in 763.