US agitated Japan.
My father-in-law was a Pearl Harbor survivor. A movie was made, I think it was 1980? I forgot the name, very simple. Anyway, those pearl harbor survivors went to the movie opening, free. And a good portion of the audience left half way through. My father-in-law said, it was full of lies.
Then Cecil Ball, head of the Pearl Harbor Survivors for Phoenix said, "Some are told that it was a surprise attack. Not at all, he said. Some say we knew 60 days before. Some say 6 months before. We know the truth, he said."