Pursuing units pivot on the spot to face the chosen direction of pursuit and then move the full distance indicated by the dice (2D6" or 3D6", exactly like fleeing troops) in the same direction as the fleeing units they are pursuing (see Diagram 43.1).
Pursuers always move their full pursuit distance unless their pursuit takes them into contact with enemy (see), friendly units or impassable terrain, in which case they stop immediately. Pursuers ignore any penalties for obstacles and terrain (apart from impassable terrain) - their victory has given them the extra impetus to chase their fleeing enemies.
Note that units do not continue to pursue in subsequent turns; pursuit is a single bonus move that is made when a beaten enemy flees.
A unit can only pursue once per combat phase.
Occasionally, pursuing units can get in each other's way as they pursue. In such rare cases, move the pursuing units in order of decreasing unit strength.