Why were Americans suspicious
of aliens during world war ll

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Americans were suspicous of aliens during World War ll because they feared they may prioritze allegiance with their mother or father country over the interesests of the american citizens.

Explanation:

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roosevelt believed that in light of the country's recent military successes, it was unnecessary to use force to achieve foreign policy goals, so long as the military could threaten force. this belief, and his strategy of “speaking softly and carrying a big stick,” shaped much of roosevelt's foreign policy.