Adams was distressed by the Japanese American internment that occurred after the Pearl Harbor attack. He requested permission to visit the Manzanar War Relocation Center in the Owens Valley, at the base of Mount Williamson. The resulting photo-essay first appeared in a Museum of Modern Art exhibit, and later was published as "Born Free and Equal: The Story of Loyal Japanese-Americans". Upon its release, "book was met with some distressing resistance and was rejected by many as disloyal." This work was a significant departure, stylistically and philosophically, from the work for which Adams is generally known. He also contributed to the war effort by doing many photographic assignments for the military, including making prints of secret Japanese installations in the Aleutians.