Design decision - that means the points below are not up for discussion anymore:
- Units will get one additional value "provisions" or something.
- This value will automatically fill up to a yet-to-be-determined maximum amount when they are within friendly territory.
- Outside their own realm, it will fill up depending on diplomacy and sympathy.
- In regions with lack of food, it will be depleted.
- When it runs out, the normal starvation rules apply.
- All other details and extensions, like being able to explicitly buy food, etc. are for later.
