Complex sentence: Some of the subordinates of Ji Hongchang attemped to move west to Ningxia via Suiyuan, but Fu Zuoyi and Zhang Lingyun pursued and blocked them east of Ertaizi, forcing them east to join Fang Zhenwu at Dushikou.
Split into simpler sentences: Some of the subordinates of Ji Hongchang attemped to move west to Ningxia via Suiyuan. However Fu Zuoyi and Zhang Lingyun pursued and blocked them east of Ertaizi, forcing them east to join Fang Zhenwu at Dushikou.