How did Reagan’s policies of increased military spending, economic sanctions, development of new military technologies, aggressive foreign policy stance, and his support for anti-communist movements around the world help to bring about the eventual collapse of the Soviet Union in 1991, ultimately ending the cold war?

How did Reagan’s policies of increased military spending, economic sanctions, development of new military technologies, aggressive foreign policy stance, and his support for anti-communist movements around the world help to bring about the eventual collapse of the Soviet Union in 1991, ultimately ending the cold war?