Domino Theory

Discipline: Political Science

American theory, during the Cold War, of defence against Soviet influence.

Nations over which the USA and the Soviet Union competed for influence were like a line of dominoes, and if one fell to communism, a process would be started which would 'lose' all of them.

Source:
Graham Evan and Jeffrey Newnham, The Dictionary of World Politics (Hemel Hempstead, 1990)

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