It is my duty, however, to place before you certain facts about the present position in Europe. From Stettin in the Baltic to Trieste in the Adriatic an iron curtain has descended across the Continent. Behind that line lie all the capitals of the ancient states of Central and Eastern Europe... all these famous cities and the populations around them lie in what I must call the Soviet sphere, and all are subject in one form or another, not only to soviet influence but to a very high and, in many cases, increasing measure of control from Moscow. **how did the ideas expressed in the passage influence the Cold War**
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A. They were used to justify aggressive actions such as the berlin blockade.
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B. They encouraged the united states and soviet union to increase aid to their allies
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C. They established a clear border between Europe's communist and noncommunist regions.
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D. They encouraged small countries to remain nonaligned in Cold War conflicts.