There should be a food production factor in HOI3. For example, certain areas of certain countries produce much more food than other areas in those countries. If that country lacked that area, they would not be able to feed their population as well (soldiers get priority to be fed). Lack of food would decease manpower growth and eventually cause dissent and loss of soldier morale. Countries would be able to trade food. This would be important for food importing states like Germany and Britain, and it would add another aspect to naval blockades and Sub warfare.
This would also help invasions of various countries, for example, most of the Soviet food is produced in the Ukraine, German food is produced in former Prussia, USA and Canada food is mostly produced on the produced on the praries, Agentina food on the Pampas, Chinese food in east China and by the rivers, Japanese and British food in the south of those countries, Italian food in the Po Valley etc. etc.
Just some food for thought...
This would also help invasions of various countries, for example, most of the Soviet food is produced in the Ukraine, German food is produced in former Prussia, USA and Canada food is mostly produced on the produced on the praries, Agentina food on the Pampas, Chinese food in east China and by the rivers, Japanese and British food in the south of those countries, Italian food in the Po Valley etc. etc.
Just some food for thought...