This investigation will assess ‘Was it justifiable for the United States to intern Japanese Americans during World War II?’ The scope of the investigation will focus on the reasoning behind why President Roosevelt issued Executive Order 9066 which led to the internment of Japanese Americans and why the Supreme Court upheld the constitutionality of his Executive Order 9066. It is also important to analyze whether Japanese Americans posed a real threat to national security in order to determine if the internment was justifiable in time of war. The methods of my investigation involve using primary sources from books, history databases, and declassified documents released by the US State Department, which pertain to Japanese internment, and
