Over 110,000 Japanese Americans were interned in camps during World War II following the bombing of Pearl Harbor and out of suspicion that they may aid Japan, despite many being U.S. citizens. FDR authorized Executive Order 9066 in 1942 allowing local commanders to designate areas for exclusion and internment camps were built quickly on the west coast where internees, including families with only the clothes on their backs, stayed until the exclusion order was rescinded in 1945 and camps finally closed in 1946.