My Dad survived the D-Day landings and the long slog across Europe to the German border and beyond. He would only speak of two things of all his experiences. One was a glimpse of what he saw on D-Day. The other was what he called the happiest day of his life up to then: news of the bombs falling on Japan, because he knew he would be going home and not have to survive another invasion.
I was surprised at the account of the 12 year-old Japanese girl. Her teacher came in, said “We have started a war with the English and America.” We all started cheering and clapping.”
Sounds like the warrior culture was very strong at the time - plus I imagine the propaganda that the white devils were coming to eat all the little children.