Japanese air attacks on the Mariana Islands 1945. While the attacks on Iwo Jima damaged the island's airfields, the Japanese managed to keep at least one of them operational at all times, and none were closed for more than a single day. The need to repair damage to the airfields forced the Japanese garrison on Iwo Jima to divert labor from building defensive positions, however. The combination of heavy losses over Saipan and damage to the airfields on Iwo Jima caused the Japanese to break off their attacks against the Marianas on 2 January. Few Japanese aircraft visited Iwo Jima starting in January, and due to their
Japanese Americans belonged to an immigrant generation, the Issei, and their US-born children to the Nisei Japanese American generation. The Issei comprised exclusively those who had immigrated before 1924. Because no new immigrants were permitted, all Japanese Americans born after 1924 were—by definition—born in the US. This generation, the Nisei, became a distinct cohort from the Issei generation in terms of age, citizenship, and English-language ability, in addition to the usual generational differences. Institutional and interpersonal racism led many of the Nisei to marry other Nisei, resulting in a third distinct generation of Japanese Americans, the Sansei. Significant Japanese immigration did not