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Answer:Under the Executive Order, some 112,000 Japanese Americans—79,000 of whom were American citizens—were removed from the West Coast and placed into ten internment camps located in remote areas. Japanese Americans were given only a few days' notice to report for internment, and many had to sell their homes and businesses for much less than they were worth. In so doing, they lost much of what they had accrued in the course of their lives.
The camps—like the one at Manzanar, California, located at the foot of the Sierra Nevada mountains—were surrounded by fences, barbed wire, guard towers, searchlights and machine guns. Families incarcerated in the camps lived in uninsulated cabins or converted stables. They occupied their enforced idleness by organizing schools and camp newspapers, by running barber or beauty shops, and more. A small number were cleared for work outside the camps. Fred Korematsu was an American-born twenty-three-year-old welder of Japanese descent living in the San Francisco Bay area. In May 1942, he was arrested for failing to comply with the order for Japanese Americans to report to internment camps.
With the help of the American Civil Liberties Union, Korematsu sued on the grounds that as an American citizen he had a right to live where he pleased.
But in a 6-3 decision in Korematsu v. United States the Supreme Court ruled that interning Japanese Americans during the war for purposes of "military necessity" was constitutional.
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