After victory in Europe the USA had to launch a propaganda campaign to keep the population geared for the remaining war with Japan. The population was incredibly war weary and they were decisively winning - they’d won really and only had to mop up the remainder.

That was 1944/1945

Edit: sorry, I guess I should try to type the point I think I’m making: that was what all our media paints as the “good war” when “everybody is on board.” The real picture had a lot more subtleties, and yeah, the hooting hogs and baying chuds will chafe at the mildest friction