attacked. Meanwhile, in spring 842, Wamosi believed that Chixin would not be obedient to him, and therefore falsely informed Tian that Chixin was planning to attack Tiande. Tian responded by luring Chixin and Pugu into a trap and killing them. Najiachuo took some of the Huigu remnants and fled east. In the aftermaths, with various Huigu remnant groups, including the group under Wujie Khan, pillaging the northern Tang regions, Li Deyu advocated accepting Wamosi's submission, in order to encourage other Huigu nobles to submit. As a result, in summer 842, Wamosi was allowed to submit along with 2,200 other nobles. Wamosi was given a general title and was created the Prince of Huaihua. Service to Tang Wujie Khan was continuing to pillage the Tang border regions, and was also demanding that Tang surrender Wamosi to him, a demand that Emperor Wuzong rejected. Meanwhile, Wamosi went to the Tang capital Chang'an to pay homage to Emperor Wuzong. Thereafter, Emperor Wuzong gave his army the name of Guiyi Army (歸義軍, i.e., "the army that submitted to righteousness") and made him the commander of the Guiyi Army. Apparently to further assure Emperor Wuzong of his faithfulness, Wamosi requested that his family members be kept at Hedong's capital Taiyuan Municipality and that he and his brothers be posted to the borders to help defend Tang. Emperor Wuzong ordered that the military governor (Jiedushi) of Hedong, Liu Mian (劉沔), to treat Wamosi's family with kindness. He also bestowed the Tang imperial clan name of Li on Wamosi and changed his name to Li Sizhong. (Wamosi's brothers Alizhi (阿歷支), Xiwuchuo (習勿啜), and Wuluosi (烏羅思) were given the names of Li Sizhen (李思貞), Li Siyi (李思義), and Li Sili (李思禮), respectively.) In fall 842, with Wujie Khan and other Huigu remnants still posing threats, Emperor Wuzong ordered Liu, Li Sizhong, and Zhang Zhongwu the military governor of Lulong Circuit (盧龍, headquartered in modern Beijing), to rendezvous at Taiyuan to prepare for further operations. Li Sizhong subsequently volunteered to fight the Huigu remnants along with soldiers from the Qibi (契苾), Shatuo, and Tuyuhun tribesmen; in response, Emperor Wuzong ordered two prefects, He Qingchao (何清朝) and Qibi Tong (契苾通), to report to him. When, subsequently, in winter 842, Liu and Zhang requested a delay in the operations, but Li Zhongshun (李忠順) the military governor of Zhenwu requested that Li Sizhong attack the Huigu with him, Emperor Wuzong sent Li