Answer:
Well.. ↓↓↓
Explanation:
Franklin only saught war because of Japan. Japan destroyed many of America's naval and battleships. They did this because they had the element of surprise and wanted to conquer territories that could provide important natural resources. He could have chosen another option because of the whole, "violence is not the answer" stuff. Since he choose war, many inoccent people died. More died than if there wasn't gonna be a war in the first place.
I hope this helped.