DOMINO EFFECT was the theory that drove the United States to interfere in Vietnam.
The political operatives of US imperialism feared the domino effect of Vietnam and other national liberation struggles, in particular, that the workers' revolutions at that time would have an internationalist outlook.
But why did America really go to Vietnam? US capitalism must continue to rely on oppressed nations as sources of low-cost labor and raw materials in order to function.
Foreign policy decision-makers in the United States had firmly acknowledged the "domino effect" theory during the 1950s, which postulated that the communist or workers' revolution takeover of Indochina would quickly spread to other Southeast Asian countries.
The idea that a defeat would be felt throughout the "third world" worried the imperialists tremendously.
Read more on how US involvement in Vietnam changed over time here: https://brainly.com/question/11991395
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