When the Guomindang (GMD) took charge in 1927, it implemented the “political tutelage” system. Participation of other parties in politics was disallowed. But after the Anti-Japanese War (1937–45), under the combined effect of internal and external pressure, the GMD needed to adopt a constitution, reorganize government and establish multi-party participation. The April 1947 governmental reorganization was the starting point of a transformation from a “political tutelage” system to a constitutional system. Though this reorganization introduced many non-GMD members into the government, it did not change the GMD’s one-party dominance. Its desired transformation of China from one-party “political tutelage” into a constitutional democracy still remained limited.