The US passionately believed in the ‘domino theory’, it was feared that if any South-East Asian nation fell the others, Laos, Thailand, Cambodia etc would follow so Vietnam was key as it bordered them all. At first the US thought the French could fend off the Vietcong so gave $3 billion to help fund the campaign as they were still recovering from The Second World War but were defeated so Vietnam was open for the communists to take over.
In 1950 the US pumped further oney into the conflict, this time to the AVRN to setup strategic hamlets that the US said were the key to defeat the Vietcong and protect the peasants. These strategic hamlets were fortified villages that the Vietnamese were expected to leave their homes and move into. Although the peasants were offered safety, food, more adequate shelter and advanced farming methods many refused to leave their homes. The Americans aim was to get the peasants on their side by offering them these hamlets but it had the opposite effect, they did not want to leave their homes so hated the ‘yanks’. Gradually the US brought in more and more troops to hold back the Vietcong but the remaining Vietnamese felt they were getting too involved so more joined the VC and it became a vicious cycle.
Politically Vietnam had been very unstable, it had been split in two following the French departure. The communist Ho Chi Minh from Hanoi ruled the North and his forces the Vietcong that operated in the South and North Vietnamese Army, the South was a US supported dictatorship run by Ngo Dinh Diem. The US knew that if free elections would see a communist victory so it could not be allowed to happen. The South’s leader Diem was now a very unpopular character with the majority of the population as he was catholic and persecuted Buddhists, this saw the public Martyrdom where Buddhist monks burned themselves in the streets in protest. In 1963 Diem was over run during a military coup and in the same month President Kennedy was assassinated.
Lyndon Johnson took over the vacancy and immediately supported the ‘domino theory’ but was reluctant to pour money into South Vietnam. He pledged that a great society was being built back home but soon the first television pictures were broadcast that showed the full horror of the conflict and his pledge was made a joke. He did not like being made a joke of, especially so early in his term so wanted to prove himself by acting quickly. Johnson was provoked further into greater involvement when the US surveillance ship, USS Maddox was attacked whilst on exercise in the Gulf of Tonkin without warning.
The domino theory was the main reason for US involvement but $3 billion invested in France and the increasing threat of communists in Vietnam gave further reason for involvement.
By
Oliver Robertson