U.S. immigration policy toward the People's Republic of China bloc. In February 1950, after months of hard bargaining, China and the Soviet Union signed the Treaty of Friendship, Alliance, and Mutual Assistance, valid until 1980. Many Americans were at a loss of what to do in regards to foreign policy concerning mainland China. The debate which took place in the United States as a result of the removal of the Kuomintang and Chiang Kai-shek to the island of Taiwan centered on Republican charges that the Democrats "lost" China. "Without question, the critics had by early 1949 convinced many Americans that Truman was, shockingly, abandoning China, China being equivalent with
Mainland China the term "Mainland China" is agreeable to both sides since they both conceive "China" as including mainland and Taiwan, and therefore need this term to distinguish the two areas. However, since it was the KMT who came to this consensus with China, the Pan Green Coalition does not embrace this term as the Pan Blue Coalition does. In Taiwan, under the concept of "Mainlander" another comparative term often used is "waishengren" (), which are the people who immigrated to Taiwan from mainland China with the Kuomintang (KMT) around the end of the Chinese Civil War in 1949, as well as