Executive order 9066 went out in February, 1942 from president Franklin D. Roselvelt ordering all people of Japenese descent to be imprisend in camps because of the natinal security threat they opposed apon America. The American Government also stated that this was to protect citizens from Japenese spies getting U.S. plans.
Executive Order 9066 affected the lives about 117,000 people, most being American citizens. Canada Would also follow relocating 21,000 of its Japanese citizens to American camps. Japanese people were also taking from South American countries and brought to the U.S.
Fred Korematsu chose to stay in his house when Japanese people where being brought to internment camps. He was later arrested for violating the order. He responded by arguing that Executive Order 9066 violated the Fifth Amendment. The Ninth Circuit affirmed Korematsu's conviction. The case was brought to the Supreme Court. Justice Hugo Black wrote the majority opinion which was that the united states wasn't doing this out of prejudice, but as way strategic imperative to secure the U.S. west coast. Justice Frankfurter concurred, writing that the “martial necessity arising from the danger of espionage and sabotage”. Justice Robert Jackson dissented saying that the order "legalized racism" and violated the 14th amendment.