<u>Public distrust of immigrants from an enemy nation</u>
After the Pearl Harbor attack by the Japanese (December 7, 1941), which caused major harms to the US ships, aircraft and killed over 2,000 people, Americans public opinion turned against Japan, which was now considered an enemy nation. Consequently, this caused a major public distrust of Japanese Americans in the country in general; and a few months later, the U.S. President enacted the Executive Order 9066 that forced the Japanese Americans to place in internment camps during the war to guarantee the U.S. national security.