Why were internment camps set up for Japanese Americans?

Japanese internment camps were established during World War II by President Franklin D. Roosevelt through Executive Order 9066. ... A civilian organization called the War Relocation Authority was set up in March 1942 to administer the plan, with Milton S. Eisenhower, from the Department of Agriculture, to lead it. read more

They were not set up for the Japanese American's. By law, the Geneva Hague Treaties, it is required to either deport citizens of a enemy nation during hostilities or set up internment camps. FDR, by executive order, created military exclusion zone for persons of Japanese, German and Italian ancestory that maintained extensive contact with family in those nations. read more

The internment of Japanese Americans in the United States during World War II was the forced relocation and incarceration in camps in the western interior of the country of between 110,000 and 120,000 people of Japanese ancestry, most of whom lived on the Pacific coast. Sixty-two percent of the internees were United States citizens. read more