The Truman Doctrine

      1. What was the Truman Doctrine? Why was the Truman Doctrine proclaimed in 1947? -- What was the Truman Doctrine https://youtu.be/Jb8aW46T3bg -- https://www.britannica.com/event/Truman-Doctrine 2. What was the Berlin Wall? What was the significance of the Berlin Wall? -- What was the Berlin Wall? https://youtu.be/IXzODWlTWgk -- https://www.britannica.com/topic/Berlin-Wall