One of my favorite associations is of ice cream with Japanese demoralization during WW2. https://www.theatlantic.com/health/archive/2017/08/ice-cream... https://www.militarytimes.com/off-duty/military-culture/2021... I remember a war memoir where a Japanese soldier was demoralized when he saw a luxury pleasure cruiser of ice cream that many Japanese POWs were made to serve the soldiers, and realized they lost the war when these existed.