What prompted president Franklin D. Roosevelt to order the internment of Japanese Americans during world war 2

Answer

President Roosevelt ordered the internment of Japanese Americans as a security measure to prevent potential sabotage and espionage on the United States, despite the lack of factual evidence supporting it.

Q:What is the background of the internment of Japanese Americans during world war 2? A:After the Japanese attack on Pearl Harbor, Hawaii, on December 7, 1941, President Roosevelt signed Executive Order 9066 on February 19, 1942, which granted the military broad powers to ban any citizen from a coastal area stretching from Washington state to California and extending inland into southern Arizona in the name of national defense.
Q:Why did President Roosevelt order the internment? A:He justified this action by claiming that it was a necessary security measure to prevent potential sabotage and espionage on the United States by individuals who might be loyal to Japan.
Q:Were there any factual evidence supporting it at that time? A:No, there was no evidence supporting the internment of Japanese Americans.