Combat units exert a ZOI out to a range of 3 hexes and artillery exerts a ZOI out to 5 hexes. The ZOI does not affect hexes that are not in the unit’s LOS; a unit cannot “influence” what it cannot see. A ZOI can be blocked by terrain such as town hexes, woods, and higher intervening elevations. Units, friendly or enemy, do not block a ZOI.
The ZOI affects enemy road movement, reorganization, recovery, and construction.
