communist russia
...U.S and South Vietnam were eventually defeated because of several reasons. One reason for defeat was that the south was not united and didn’t share just one culture, they had been influenced by many cultures, and the south also had a government that had often been corrupt. The North part of Vietnam also had the better military groups. Also the United States military technology was advanced but was not suited for the jungle terrain of Vietnam. C. In the years after the war the Vietnamese had many problems with neighboring Cambodia. Its relations with china also worsened after the war but they were supported by the Soviet Union. In 1979 the Chinese felt that the Vietnamese along with the Soviet Union were looking to expand. In order to halt this expansion china invaded northern Vietnam. After this, along with Pol pot china kept heavy...