Movement  All units and leaders must stop when entering a forest hex and may move no further on that turn
Battle

A unit may not battle the turn it moves onto a forest hex. Light infantry, light sling infantry, light bow infantry, auxilia infantry and warrior infantry units are the exception. These units may move onto a forest hex and still battle. These are also the only units which can Momentum Advance into a forest hex and have the potential for a bonus Close Combat. Other units which Momentum Advance into a forest hex may not bonus Close Combat.

A Command card that adds additional dice in battle will modify the number of battle dice maximum that may be rolled.

Close Combat A unit battling an enemy unit on a forest hex or a unit on a forest hex battling out, will roll a maximum of 2 dice in close combat.
Range Combat A unit that targets an enemy unit on a forest hex with Ranged Combat will roll a maximum of 1 die.
Line of Sight A forest hex blocks line of sight.