 He thus launched an attack against Chang'an.Li Jiepi initially advised Emperor Zhaozong to flee to Hedong to join Li Keyong, but after Emperor Zhaozong left Chang'an, Han made repeated overtures to Emperor Zhaozong, and Emperor Zhaozong, whose officials feared the long journey to Taiyuan, relented, and went to Hua Prefecture to join Han.Li Maozhen entered Chang'an and burned it.