The Cold War Period refers to the geopolitical tension and ideological conflict between the United States and the Soviet Union from the end of World War II in 1945 until the dissolution of the Soviet Union in 1991. This era was characterized by a struggle for global influence, marked by a series of proxy wars, arms races, and a battle for ideological supremacy between capitalism and communism. The consequences of this period significantly shaped domestic policies and civil liberties, influencing interpretations of the First Amendment.