C.) three months after Pearl Harbor, in the California desert.
Japan’s attack on Pearl Harbor December 7, 1941. n February, 1942, President Franklin D. Roosevelt signed Executive Order 9066 authorizing the Secretary of War to establish Military Areas and to remove from those areas anyone who might threaten the war effort. Manzanar, located in the Owens Valley of California between the Sierra Nevada on the west and the Inyo mountains on the east, was typical in many ways of the 10 camps.