Why were japanese required to move from “critical areas”?

answer:

hello,   all japanese were required to move from critical areas such as these. that is why the commanding general of the western defense command determined that all japanese within the coastal areas should move inland. source: japanese relocation, produced by the office of war information, 1942. general dewitt opposed the transfer, at least until it became evident that the. only 40 percent of these would have been japanese aliens, the majority would have from critical areas, but which made no specific mention of the japanese.

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russia because it is the biggest state