Chiang Kai-shek, chairman of the Kuomintang government, was in charge of the three major military systems: the Hu Zongnan system. Known as the "450,000 elite", it has influence all over the northwest and also controls the power of the provinces, and is known as the "Northwest King". Chen Cheng system. This man is the husband of Tan Xiang, Chiang Kai-shek's adopted daughter (the daughter of Tan Zhi, a veteran of the Kuomintang). He made his fortune in the 18th Army, and most of them were elite troops of the Kuomintang. Some people write18th Army Main Force18th Army18th Division 1 1 Regiment as "Civil" and call Chen Cheng "Civil" Department.