the Battle of Luchuan, Zhang Ci, Deng Qiang and Xu Cheng led their troops head on and routed the numerically superior Yan soldiers. Qin would annex all of Yan that same year. Yuan Qin's rebellion The next year, Fu Jian sent Zhang Ci and Wang Jian (王堅) to reinforce the rebelling Jin general Yuan Qin at Shouchun. Zhang Ci camped at Luojian (洛澗, in modern-day Huainan, Anhui) and sent 5,000 of his cavalry to Shiqiao (石橋), just north of the Fei River (淝水, presumably in Lu'an, Anhui, near the Huai River). The Jin commander, Huan Wen sent Huan Shiqian and Huan Yi to intercept Zhang's cavalry and dealt them a great defeat. Zhang Ci retreated to Shencheng (慎城, in modern-day Fuyang, Anhui) while Yuan Qin's troops scattered at the news of their reinforcements' defeat. Shouchun eventually fell to Jin and Yuan Qin was executed. Conquest of Dai In 376, Fu Jian invaded the Tuoba state of Dai after they attacked the Qin's ally, the Xiongnu chieftain Liu Weichen. Zhang Ci was one of the generals involved in the campaign. At the time of the conquest, Dai was troubled by internal strife between its king, Tuoba Shiyijian and his nephew Tuoba Jin (拓拔斤), who jointly ruled the state with his uncle but was not happy with his restriction of power imposed on him. Tuoba Jin incited Shiyijian's son, Tuoba Shijun (拓拔寔君), to assassinate his father along with his younger brothers, causing many of their concubines and subordinate to flee to Qin and inform them of the situation in Dai. Hearing this, Zhang Ci and Li Rou (李柔) quickly led their forces and capture Yunzhong. The fall of Yunzhong threw Dai into an even greater state of chaos, and Dai would be conquered shortly after. In 379, Zhang Ci was appointed the Inspector of Bingzhou. Battle of Fei River When Fu Jian invaded the Jin dynasty in 383, Zhang Ci assisted Fu Rui (苻叡) in repelling Huan Chong from Xiangyang. Zhang Ci's advance through the Xie Valley intimidated Huan Chong's general Yang Liang (楊亮) into retreating while Chui dealt with Chong himself. Following this, Fu Jian assigned Zhang Ci to Fu Rong, making him his vanguard general. He helped him capture Shouchun and later went south of the Fei River to defeat the Jin general, Xie Shi. However, faced with Xie Xuan's larger forces, Zhang Ci decided to retreat back north, setting