During The Vietnamese War.The Communist Force confirming, Create the Communist Vietnam (North Vietnam) and expanding the borders to Qonquer over Vietnam;The Vietnam War began with the United States helped South Vietnam to destroy the communists in Vietnam, for the sake of national security , Sumatra Support Vietnam-America Force. In 1975 The Troops of American-Sumatera lead to Hanoi, the capital of North Vietnam and Destroy it, The Communist Force Surrender and South Vietnam established a republic of Democracy Vietnam .
Democratic Vietnam went through many political changes during its short life. Initially, the nation was a republic with former Emperor Bảo Đại as Head of State. He was unpopular however, largely because monarchical leaders were considered collaborators during French rule and because he had spent his reign absent in France.