Killing Japanese didn't bother me very much at that time... I suppose if I had lost the war, I would have been tried as a war criminal.
Doing something like that, quite radically changing your approach to sound in one go, could leave you high and dry. It's happened before where people have changed direction and then everyone's stopped liking their music.
World War II is the greatest drama in human history, the biggest war ever and a true battle of good and evil. I imagine writers will continue to get stories from it, and readers will continue to love them, for many more years.

