USA HISTORY

Detailed explanation-1: -The Doctrine was a statement of “CONTAINMENT OF COMMUNISM", that the U.S. would offer assistance prevent communism from spreading. It was a guiding principle of American foreign policy throughout the Cold War, not to roll it back but to keep it from spreading and to resist communist aggression into other countries.

Detailed explanation-2: -Under the Reagan Doctrine, the United States provided overt and covert aid to anti-communist guerrillas and resistance movements in an effort to “roll back” Soviet-backed pro-communist governments in Africa, Asia, and Latin America.

Detailed explanation-3: -On March 3, 1983, Reagan predicted that communism would collapse: “I believe that communism is another sad, bizarre chapter in human history whose-last pages even now are being written", he said. He elaborated on June 8, 1982, to the British Parliament.

Detailed explanation-4: -Additionally, these doctrines were also used for the United States’ benefit because in the Monroe Doctrine, the United States forbade European powers from trying to conquer South American countries; in the Truman Doctrine, the United States tried to contain communism and to stop its spread across Europe.