Why did roosevelt put Japanese people into internment camps?

President Franklin D. Roosevelt authorized the internment of Japanese Americans during World War II primarily due to fears of espionage and sabotage following the attack on Pearl Harbor. The U.S. government, driven by wartime hysteria and racial prejudice, viewed Japanese Americans as potential threats despite their U.S. citizenship for many. This decision led to the forced relocation and incarceration of around 120,000 individuals, primarily from the West Coast, in camps across the country. The internment is now widely recognized as a grave injustice and a violation of civil rights.