The document discusses several proxy wars that occurred during the Cold War between the United States and USSR. These included the Greek Civil War, Korean War, Bay of Pigs Invasion, Vietnam War, Chilean Coup of 1973, war in Afghanistan, and Angolan Civil War. In each conflict, one superpower supported one side ideologically aligned with it, such as democratic states or communist groups. This allowed the superpowers to pursue their foreign policy goals and expand their influence without direct military conflict, though it increased tensions between them.