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
Non-intervention in the Spanish Civil War Non-intervention in the Spanish Civil War During the Spanish Civil War, several countries followed a principle of non-intervention, to avoid any potential escalation and possible expansion of the war to other nations, which would result in the signing of the Non-Intervention Agreement in August 1936 and the setting up of the Non-Intervention Committee, which first met in September. Primarily arranged by the French and British governments, important members of the committee also included the Soviet Union, Fascist Italy and Nazi Germany. Ultimately, the committee had the support of 27 nations. A plan to control materials coming into the country was