Answer :
The capital of South Vietnam from 1954 to 1975 was called Saigon. During this time this territory was called the "Republic of Vietnam" and was supported by the United States during the Americans military operations in Vietnam.
The correct answer is: "Saigon"
The war in Vietnam took place between 1955 and 1975. The country had splitted in two confronted halves. North Vietnam was supported by the URSS, China and other countries of communist influence, while South Vietnam established its capital in Saigon and was supported by the US, South Korea, Australia and other anti-communist allied countries. Therefore, this national conflict became a proxy war in the larger conflict known as Cold War, between the Eastern bloc constituted by the URSS and its allied countries and the Western bloc leaded by the US and integrated by other anti-communist countries under its influence.
