Answer: About 10 weeks after the U.S. entered World War II, President Franklin D. Roosevelt on February 19, 1942 signed Executive Order 9066. The order authorized the Secretary of War and the armed forces to remove people of Japanese ancestry from what they designated as military areas and surrounding communities in the United States. These areas were legally off limits to Japanese aliens and Japanese-American citizens.
The order set in motion the mass transportation and relocation of more than 120,000 Japanese people to sites the government called detention camps that were set up and occupied in about 14 weeks. Most of the people who were relocated lived on the West Coast and two-thirds were American citizens. In accordance with the order, the military transported them to some 26 sites in seven western states, including remote locations in Washington, Idaho, Utah, and Arizona.
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