Respuesta :
The threat, which was a popular subject of American invasion literature after World War II, was the Soviet Occupation. Therefore, Option D is correct.
What was the Soviet Occupation?
During the time period of 1944 till 1958, the Soviet Union maintained a significant military presence in Romania, and that was known as the Soviet occupation of Romania.
Apart from this, there was one more Soviet occupation, and that was in Germany, in the area of eastern Germany that was occupied by the Soviet Union. It is from 1945. By the end of 1949, it became the German Democratic Republic, known in English as East Germany.
Therefore, Option D is correct.
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