1. Harry S. Truman was the 33rd president of the United States, serving from 1945 to 1953. A lifetime member of the Democratic Party, he previously served as a US Senator from the State of Missouri from 1935 to 1945
2. the principle that the US should give support to countries or peoples threatened by Soviet forces or Communist insurrection. First expressed in 1947 by US President Truman in a speech to Congress seeking aid for Greece and Turkey, the doctrine was seen by the Communists as an open declaration of the Cold War.
3. The Marshall Plan was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred over $13 billion in economic recovery programs to Western European economies after the end of World War II.
4. Shortly after midnight on August 13, 1961, East German soldiers begin laying down barbed wire and bricks as a barrier between Soviet-controlled East Berlin and the democratic western section of the city. After World War II, defeated Germany was divided into Soviet, American, British and French zones of occupation.
5. The crisis started on June 24, 1948, when Soviet forces blockaded rail, road, and water access to Allied-controlled areas of Berlin. The United States and United Kingdom responded by airlifting food and fuel to Berlin from Allied airbases in western Germany.
6. NATO's purpose is to guarantee the freedom and security of its members through political and military means.
7.The Warsaw Treaty Organization, officially the Treaty of Friendship, Cooperation and Mutual Assistance, commonly known as the Warsaw Pact, was a collective defense treaty signed in Warsaw, Poland
