Tactical Economic game?

Just a thought that hit me maybe 55 seconds ago (56, 57, 58 :p)

Has anyone ever thought of/made a game that is like a tactical war game, (perhaps like Conflict of Heroes in that its little chit units on a hexagonal game board) where you are trying to control sections that perhaps produce a good or resource. Maybe every now and then you get the good/resource to use to build units/equipment?

Kind of like a computer RTS