I’ve read a number of books set in time periods before the present day, in which there was military action involved.
Without freezing, refrigeration or canning the food mentioned as being consumed by soldiers(when if wasn’t foraged/stolen fresh) was mostly dried.
There was hard bread and cheese, dried fruits and vegetable. There would also be items variously refereed to as “ration bars”, “field bars” or, by the soldiers themselves “rat bars”. These were mentioned as including bits of dried fruits or meats, grains, and fats, sometimes sweetened with honey. High in calories, light in weight, they would satisfy hunger when nothing else better was available.
Are there recipes or directions for making stuff like this, in the present day? If you know of any can you point to links?
I figure someone on the Dope knows, if anyone else does. I would welcome any other discussion of food “in the field” that you have knowledge of.