民国四年(1915年)十二月,袁世凯宣布恢复帝制,定次年元旦废民国初元,改元洪宪,自称“洪宪皇帝”。袁世凯复辟帝制的丑剧激起了全国人民的坚决反对。1915年12月25日,唐继尧、蔡愕等人在昆明联名向全国发出通电,宣布云南独立,成立讨袁护国军和护国军云南都督府,组织三路大军武力讨袁。民国五年(1916 In the four years of the Republic of China (1915), in December December, Yuan Shikai announced the restoration of imperialism, setting the first yuan of the new year’s wasteland in the following year, changing Hongxian to Hongxian, and calling himself the “Hongxian Emperor.” Yuan Shih-kai’s restoration of the ugly drama of the imperialism has aroused the strong opposition of the people throughout the country. December 25, 1915, Tang Jiyao, Cai ama and others issued a joint electricity in Kunming to the country, announced the independence of Yunnan, set up to discuss the protection of the armed forces and the military government of Yunnan Dudu Fu, organized three armies to discuss Yuan forces. Republic of China five years (1916