How were the Truman Doctrine, the Marshall Plan, and the Berlin Airlift responses to Soviet aggression during the Cold War?

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Explanation:

*Truman Doctrine: Per US President Harry Truman, the position and role of the US is to contain the spread of Communism around the world.  

*Marshall Plan: Aid and funds sent by the US to the devastated economies of Western and even some Eastern European countries after World War II. The purpose was to ensure their economies bounce back so they don't fall to Communism.

*Berlin Airlift: The Berlin Airlift was a series of air missions that transported and dropped food and other products to the people of Berlin. This is because Berlin was blocked by the Soviets who controlled one half of the City (to prevent the exodus of East Berliners to the Western side). Khrushchev

Explanation:

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map scale refers to the relationship (or ratio) between distance on a map and the corresponding distance on the ground. for example, on a 1: 100000 scale map, 1cm on the map equals 1km on the ground.