1. What is the ContainmentDoctrine?2. Summarize the main points of the Truman Doctrine and the Marshall plan.3. On pages 674-675 of you text, you have an article about McCarthyism. Answer question 3 at the end of the article.4. What prompted the United States to enter intothe KoreanWar? What was the result of that war and is the result still valid today?