The photograph.
Because it is made by someone other than Rosevelt but it is still first-hand information.
The answer is approximately 130,222,815 people they make up approximately 1.73% of the worlds population. Hope this helps.
We weren't really involved in the war at all, it was like a normal day; but then pearl harbor came and as President Roosevelt quoted "a day that will live in infamy" this was the point where the U.S joined the war against Japan
