He then , in conjunction with Weibo forces , attacked three prefectures of Zhaoyi Circuit east of the Taihang Mountains that Li Keyong controlled ; the three prefectures soon fell .
Zhu put Ge in charge of the prefectures as the acting military governor of Zhaoyi .
He then , in conjunction with Weibo forces , attacked three prefectures of Zhaoyi Circuit east of the Taihang Mountains that Li Keyong controlled ; the three prefectures soon fell , and Zhu put Ge in charge of the prefectures as the acting military governor of Zhaoyi .