Domino theory Domino theory The domino theory was a theory prominent from the 1950s to the 1980s that posited that if one country in a region came under the influence of communism, then the surrounding countries would follow in a domino effect. The domino theory was used by successive United States administrations during the Cold War to justify the need for American intervention around the world. U.S. President Dwight D. Eisenhower described the theory during an April 7, 1954, news conference, when referring to communism in Indochina: In 1945, the Soviet Union brought most of the countries of eastern Europe and Central
Sovereignty of Puerto Rico during the Cold War Sovereignty of Puerto Rico during the Cold War During the height of the Cold War, Latin America became a strategic pillar of the hemispheric defense doctrine, serving a key to the power struggle between East and West. Following the Cuban Revolution and the overthrow of the friendly government of Fulgencio Batista, the United States became concerned with the spread of the Soviet Union's influence in Latin America, becoming heavily invested in retaining as much influence as possible. With the nuclear arms race at its peak, a Soviet transfer of nuclear warheads to its Latin American ally in Cuba nearly concluded