Respuesta :

Answer:

Roosevelt justified the order on the grounds of military necessity, declaring that Japanese Americans were a threat to national security. Anti-Japanese sentiments had been developing in the U.S. long before WWII had even begun.

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Citizens feared that the Japanese would soon attack the United States; they believed false rumors
-this sense of fear and uncertainty caused a wave of prejudice against Japanese Americans
-he believed they posed a threat and he justified the internment of them as necessary for national security