According to Sun Yat-sen's "Three Stages of Revolution" theory, the KMT was to rebuild China in three phases: the first stage was military unification, which was carried out with the Northern Expedition; the second was "political tutelage" which was a provisional government led by the KMT to educate people about their political and civil rights, and the third stage was constitutional government. By 1928, the Nationalists, having taken over power militarily and reunified China, started the second phase, promulgating a provisional constitution and beginning the period of so-called "tutelage". The KMT was criticized for instituting authoritarianism, but claimed it was attempting to establish a modern democratic society.

Among other institutions, they created at that time the Academia Sinica, the Central Bank of China, and other agencies. In 1932, China sent a team for the first time to the Olympic Games. Historians, such as Edmund Fung, argue that establishing a democracy in China at that time was not possible. The nation was at war and divided between Communists and Nationalists. Corruption within the government and lack of direction also prevented any significant reform from taking place. Chiang realized the lack of real work being done within his administration and told the State Council: "Our organization becomes worse and worse ... many staff members just sit at their desks and gaze into space, others read newspapers and still others sleep." The Nationalist government wrote a draft constitution on 5 May 1936. Mass killing under the nationalists were common with millions of people killed. Notable mass killings include deaths from forced army conscription and the White Terror.

The Nationalists faced a new challenge with the Japanese invasion of Manchuria in 1931, with hostilities continuing through the Second Sino-Japanese War, part of World War II, from 1937 to 1945. The government of the Republic of China retreated from Nanjing to Chongqing. In 1945, after the war of eight years, Japan surrendered and the Republic of China, under the name "China", became one of the founding members of the United Nations. The government returned to Nanjing in 1946.

Economy
Human Rights violations
Government
Nanjing Decade and War with Japan