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
Internment of Japanese Americans related to the Japanese American experience. On October 1, 1987, the Smithsonian Institution National Museum of American History opened an exhibition called, "A More Perfect Union: Japanese Americans and the U.S. Constitution". The exhibition examined the Constitutional process by considering the experiences of Americans of Japanese ancestry before, during, and after World War II. On view were more than 1,000 artifacts and photographs relating to the experiences of Japanese Americans during World War II. The exhibition closed on January 11, 2004. On November 8, 2011, the National Museum of American History launched an online exhibition of the same name with