Onigiri day

On this day, the fossilized specimen of the oldest onigiri in Japan was discovered In fact, the day it was discovered was the winter of 1987.

By the way, the Navy doesn't use the word onigiri all that much. They probably say nigiri meshi.

Akagi-san, what is that ?

I grabbed some shutouhan from the Army♪

Shutouhan (hand thrown rice) : rations thrown into ally troops in trench or near enemy