during the world war 2 period the us supreme court ruled that
Korematsu v. United States Korematsu v. United States, 323 U.S. 214 (1944),[1] was a landmark United States Supreme Court case concerning the constitutionality of Executive Order 9066, which ordered Japanese Americans into internment camps during World War II regardless of citizenship.
Military history of the United States during World War II Following the attack on Pearl Harbor, President Roosevelt officially pronounced 7 December 1941, as "a date which will live in infamy" and asked for a declaration of war on Japan before a joint session of Congress on 8 December 1941. The motion passed with only one vote against it, in both chambers. Just three days later, on 11 December 1941 Adolf Hitler declared war on the United States, and had already remarked on the evening of the date of the Japanese attack that "We can't lose the war at all. We now have an ally which has never been conquered in 3,000 years".[28]