According to this document, Nazi Germany was treated very favorably, since the state of Czechoslovakia was forced to surrender the Sudeten region or Sudetenland to Nazi Germany in a matter of days. This region had been incorporated into Czechoslovakia at the end of World War I, but it had previously been taken away from Germany, so it was primarily inhabited by Germans. Hitler promised not to invade other parts of Czechoslovakia, but he did not keep his promise.
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The answer would be D, President Harry S. Truman pledged that the United States would help any nation resist communism in order to prevent its spread. His policy of containment is known as the Truman Doctrine
After the II war, the African Nationalism emerged late 1940s and early 1950s because three main reasons: The first one was that nearly two million African soldiers who were part of the II war (1939-1945) were discontent after coming back to the colonial states to be treated as slaves. The second reason was that Kwame Nkrumah father of the Pan Africanism, influenced the African Nationalist leaders against the colonial rules to reach freedom and finally the third reason was to maintain the unity among them after the rejection of colonies which oppressed African Nationalist.