The USA started nation-building in South Vietnam in 1954 after the Geneva Agreements. The USA wanted to build a state which would prevent expansion of communism to other states in Asia. This program failed and finally, in 1976 South Vietnam and North Vietnam were reunited into a single communist Vietnam. The goal of this bachelor thesis is to identify factors that caused nation-building in South Vietnam to fail. The causes of failure of nation-building are classified in three main levels - American policy in South Vietnam, South Vietnam and extern factors like the Democratic Republic of Vietnam, Soviet Union and People's Republic of China
