How did Winston Churchill’s “Iron Curtain” speech impact the Truman Doctrine?
Churchill's famous speech convinced many Americans of the threat of Soviet influence, and this facilitated their support of the Truman Doctrine.
Churchill’s famous speech made many Americans aware that the USSR had nuclear weapons, which led to the end of the Truman Doctrine.
Churchill’s famous speech showed that Great Britain was not strong enough to oppose the USSR, which led to the rejection of the Truman Doctrine.
Churchill’s famous speech showed that Eastern European countries might attack their neighbors, which led to the transformation of the Truman Doctrine.