At the end of the Qing Dynasty and the beginning of the Republic of China, it was stipulated that all students who graduated from the army primary school would go straight to the army middle school (Army Preparatory School), except those who were eliminated, they would all be promoted to Baoding Military Academy, and they could be sent to the Japanese NCO School for study during their enlistment in Baoding. In A.D. 192 1 year, Liu Cunhou was expelled, and the third division of Deng Xihou was defeated and surrendered to Ning. Because they were classmates of Baoding Military Academy and subordinates of Liu Cunhou, and because they were in the same predicament and had the same interests, they formed the Baoding Department headed by Deng Xihou.