north vietnam and south vietnam united on 30 april 1975.
when did north vietnam and south vietnam unite?
30 april 1975
the united states played an ever-increasing role in supporting south vietnam through the period. the u.s. had supported french forces in the first indochina war, sent supplies and military advisers to south vietnam throughout the 1950s and early 1960s, and eventually took over most of the fighting against both north vietnam and the viet cong by the mid-1960s. by 1968, over 500,000 american troops were involved in the vietnam war. due to a lack of clear military success and facing increasingly strident opposition to the war in the u.s., american forces began a slow withdrawal in 1969 while attempting to bolster south vietnam's military so that they could take over the fighting. in accordance with the paris peace accords by 29 march 1973, all u.s. combat forces had left south vietnam, however, north vietnamese combat forces were allowed to remain in place. north vietnam attacked south vietnam in early 1975 and south vietnam fell on 30 april 1975.
sino-vietnamese war
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 which 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, 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 second indochina 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 the soviets. chinese influence over north vietnam diminished from that point.
china in the vietnam war