Cold War Military Computer Systems of the United States

The Cold War was a state of political and military tension after World War II between powers in the Western Bloc (the United States, its NATO allies and others) and powers in the Eastern Bloc (the Soviet Union and its satellite states). Historians do not fully agree on the dates, but a common time-frame is the period between 1947, the year the Truman Doctrine (a U. S. policy pledging to aid nations threatened by Soviet expansionism) was announced, and 1991, the year the Soviet Union collapsed.