USA HISTORY

Detailed explanation-1: -The escalating US involvement in Southeast Asia was driven by the logic of the domino theory, which contended that the falling of one country to communism would result in other surrounding countries succumbing to communism, much as one toppled domino will take down others in a row.

Detailed explanation-2: -In Eisenhower’s view, the loss of Vietnam to communist control would lead to similar communist victories in neighboring countries in Southeast Asia (including Laos, Cambodia and Thailand) and elsewhere (India, Japan, the Philippines, Indonesia, and even Australia and New Zealand).

Detailed explanation-3: -The theory, whose name comes from a 1954 speech by President Eisenhower, held that if one country fell to communism, then its neighbors would fall next, toppling like dominoes. This fear encouraged U.S. officials to worry about the emergence of communism even in places of little strategic importance.

Detailed explanation-4: -The US justified its military intervention in Vietnam by the domino theory, which stated that if one country fell under the influence of Communism, the surrounding countries would inevitably follow. The aim was to prevent Communist domination of South-East Asia.