When a nation gets annexed and its land is directly connected to occupiers capital, then all the occupied provinces could become core. I see this as an important improvement because, at the moment there is no real incentive to build structures on occupied territory.
The costs for building a level 1 industrial plant are quite high so even if a territory produces 2000 materials a day, once it becomes occupied it would take 20 days to recover just the metal alone. So at the moment it is madness to improve a non core territory.
A bonus for Call of War would be gold purchases, as if a player will get a sensible return they would be more likely to buy gold to make those improvements, while still being able to field an army over further distances.
I think that any territory overseas or a direct route blocked by another countries occupation, should be non core.
The costs for building a level 1 industrial plant are quite high so even if a territory produces 2000 materials a day, once it becomes occupied it would take 20 days to recover just the metal alone. So at the moment it is madness to improve a non core territory.
A bonus for Call of War would be gold purchases, as if a player will get a sensible return they would be more likely to buy gold to make those improvements, while still being able to field an army over further distances.
I think that any territory overseas or a direct route blocked by another countries occupation, should be non core.