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
History of the United Kingdom during the First World War be their attitude towards England? What about India and the Mediterranean?" The Liberal Party might have survived a short war, but the totality of the Great War called for strong measures that the Party had long rejected. The result was the permanent destruction of the ability of the Liberal Party to lead a government. Historian Robert Blake explains the dilemma: Blake further notes that it was the Liberals, not the Conservatives who needed the moral outrage of Belgium to justify going to war, while the Conservatives called for intervention from the start of the crisis on the grounds of "realpolitik"