Includes correspondence, reports, memos, press releases, and other materials concerning the induction of Japanese Americans into the military, the organization of the 442nd RCT, the return of Japanese Americans to the Western Defense Command, the employment of Japanese Americans, Japanese aliens from Hawaii, loyalty investigations, Japanese organizations in the US and Hawaii, the Japanese American Branch, selective service, exclusion orders, the MISLS, and other issues relating to the treatment of Japanese American civilians and soldiers.