The Greek Civil War was a conflict that took place between 1946 and 1949, primarily fought between the Greek government, backed by the United States and the United Kingdom, and communist insurgents known as the Democratic Army of Greece. This war was significant in shaping post-World War II Greece and highlighted the growing tensions of the Cold War, influencing the development of policies like the Truman Doctrine and the Marshall Plan as Western powers sought to contain communism in Europe.