This article discusses Mongolia’s 15 years of diplomatic efforts to join the United Nations, the main factors that influenced it, and the changing policies and positions of the Soviet Union, the Kuomintang of China, the United States, and other great powers. Although the Mongolian People’s Republic was able to join the United Nations in 1946, it was influenced by the Soviet Union’s communist position. Since 1946, Chiang Kai-shek’s Chinese policy and position have been a major obstacle. The history of the Republic of China, which existed on the mainland between 1912 and 1949, was the history of the struggle for power between the warlords, the history of the struggle between the Kuomintang and the Communists. In the nearly 40 years since the ...