United States, Soviet Union is the correct answer.
There was a war called Cold War following World War II between those two nations.
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In 1896, the Supreme Court decided that separate but equal law was constitutional in the Plessy v. Ferguson case which caused segregation to be legal in America for another 60 years.
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The widespread destruction of the war plunged many small farmers into debt and poverty, and led many to turn to cotton growing. The increased availability of commercial fertilizer and the spread of railroads into upcountry white areas, hastened the spread of commercial farming.