| Movement | An infantry unit, cavalry unit or leader that enters a Marsh hex must stop and may move no further on that turn. A marsh hex is impassable terrain for an Artillery unit. An infantry unit may not form square on a Marsh hex. |
| Battle |
A unit may battle the turn it moves onto a Marsh hex. A unit on a Marsh hex will reduce its battle dice rolled by 1 in range and melee combat. When targeting an enemy unit or leader on a Marsh hex; a unit will roll 1 less battle die in melee combat, but its ranged combat dice are not reduced. |
| Line of Sight | Free |