USA HISTORY

Detailed explanation-1: -These included the invoking of the Monroe Doctrine (with the Americas as the US sphere of influence), the propounding of domino theory (that once one country fell to communism others would follow), and territorial strategies of containment (prevention of communism spreading beyond its existing ‘borders’).

Detailed explanation-2: -The domino theory was a Cold War policy that suggested a communist government in one nation would quickly lead to communist takeovers in neighboring states, each falling like a row of dominos.

Detailed explanation-3: -The Domino Theory American foreign policy after World War II was based on the goal of containing Communism and the assumptions of the so-called “domino theory"-if one country fell to Communism, the surrounding countries would fall, like dominoes.

Detailed explanation-4: -The primary evidence for the domino theory is the spread of communist rule in three Southeast Asian countries in 1975, following the communist takeover of Vietnam: South Vietnam (by the Viet Cong), Laos (by the Pathet Lao), and Cambodia (by the Khmer Rouge).

Detailed explanation-5: -On April 7, 1954, President Dwight Eisenhower answered a press conference reporter’s question about the impending defeat of the French in Indochina with the first articulation of what would become known as “The Domino Theory.” The theory would drive the escalation of the Vietnam War over the next two decades.