Question: Japanese were imprisoned solely on the basis of their ethnicity. None of the more than 110,000 Japanese and Japanese Americans internees was ever found to have committed a disloyal act against the United States, and many young Japanese American men served in the U.S. army during the war.145 Although Japanese American Fred Korematsu challenged the right of the government to imprison law-abiding citizens, the Supreme Court decision in the 1944 case of ___________ upheld the actions of the government as a necessary precaution in a time of war.