The Vietnam War was a major event that shaped the course of the world in the second half of the 20th century. Although it was a regional conflict that occurred on the Indochinese Peninsula, it also affected the strategic interests of the People's Republic of China, the United States and the Soviet Union as well as the relations between these great powers. China, in particular, also played an important role in the Vietnam wars during 1950~1975. China helped Vietnam against French forces during the First Indochina War and later helped North Vietnam unite the nation by fighting South Vietnam and the United States in the Vietnam War. However, with the failure of the North Vietnamese and Chinese negotiations in 1968, the PRC began to withdraw support for the sake of preparing for a clash with t