Why did the government put Japanese in concentration camps?

There were no Japanese concentration camps. During World War II, the United States government placed Japanese Americans in internment camps, or concentration camps, after a series of executive orders signed by President Franklin D. Roosevelt. The US placed Japanese Americans in internment camps primarily due to fears and paranoia about espionage and potential sabotage by Japanese Americans living on the West Coast of the United States. This action violated the civil liberties of Japanese Americans and has been widely criticized as a dark period in American history.