Constitutional Protection Movement
The Constitutional Protection Movement launched by the Military Government of the Republic of China in Guangzhou on 10 September 1917, was intended to "protect" this provisional constitution. However, as the Warlord Era divided the country into warring factions, the provisional constitution was gradually superseded by the constitutions issued by each rival government. In the Beiyang Government, the provisional constitution was replaced by Cao Kun's constitution on 10 October 1923. In the Nanjing Government, the provisional constitution was not replaced until 1 June 1931, when the Provisional Constitution of the Political Tutelage Period was announced, although the old constitution was already rarely discussed after the establishment of the Nationalist Government on 1 July 1925. From 1928 onwards, the Nationalists were operating under an Organic Law that had an ambiguous relationship with the 1931 Provisional Constitution as it was not completely superseded.