back to Fu Jian while Weichen was captured by Deng Qiang. In 366, Yang An, Wang Meng and Yao Chang attacked Nanxiang Commandary (南鄉) in Jingzhou, and Jin in response sent Huan Huo to push them back. As Huan Huo reached Xinye, the three generals withdrew, claiming more than ten thousand households north of the Han River. The following year, the independent warlord in Liangzhou, Li Yan (李儼) was attacked by Former Liang. After asking for help, Fu Jian sent Yang An to reinforce Li at Fuhan (枹罕縣; in present-day Linxia County, Gansu). The situation was resolved after Wang Meng defeated Zhang Tianxi's army near Fuhan and convinced him to withdraw his troops. Thus, no territories were lost between Qin and Liang while Li Yan was moved to Chang'an. In 368, Yang An participated in quelling the rebellion of Fu Liu (苻柳), Fu Shuang (苻雙), Fu Sou (苻廋) and Fu Wu (苻武). Yang An and Zhang Ci were tasked in facing Fu Sou at Shancheng (陝城, in modern Sanmenxia, Henan) but were ordered by Fu Jian to stack up their supplies and avoid battle first until Fu Shuang and Fu Wu were defeated. Following the defeats of Liu, Shuang, and Wu, Fu Sou was the last of the rebels that Qin had to deal with. Yang An and Zhang Ci received reinforcements in the form of Wang Jian (王鑒) and Deng Qiang sent by Wang Meng. Together, they captured Fu Sou and Shancheng, ending the rebellion as a whole. Conquest of Former Yan War broke out between Former Qin and its rival state, Former Yan in 370. While Wang Meng was heading the campaign, Fu Jian sent Yang An, who was serving as General Who Guards the South at the time, with 60,000 troops to reinforce Wang. Yang An laid siege on Jinyang (晉陽, in modern Taiyuan, Shanxi) but he could not overcome the city's defenses. When Wang Meng arrived to help after capturing Huguan, the two devised a plan to have Zhang Ci infiltrate the city. They dug tunnels under the walls of Jinyang and sent Zhang Ci with a few hundred men into the city to open the gates. After Zhang Ci did so, Wang Meng and Yang An's forces flooded the city and captured its defender Murong Zhuang. After Qin conquered Yan, Yang An was made Marquis of Boping County. In 371, Fu Jian handed out a