War would have broke out in any case. The Japanese were going to take British, Dutch, French, Chinese and American holdings in Asia/Western Pacific no matter who was sitting in the oval office. The timing and circumstances might have been different, but that Japanese expansion was going to happen. They built their navy and army for a generation just to make that happen. One thing that might not have happened is that another president may not have locked up 200,000 American citizens in concentration camps. That act was (in my opinion) the worst thing that any president of the United States has ever done. Just the thought of that makes me ashamed. And I know... some other guy in those racist times might have done the same thing, but maybe not. There were good men in government who might well have been sitting in that chair when war broke out, men who may have thought civil rights were valid and that the Bill of Rights wasn't just toilet paper. Sorry if that's off topic, but when I think of Roosevelt that atrocity comes to my mind first and foremost. .