Characters can use a Make Way! move in order to move to another rank – most commonly if their unit is charged in the flank or the rear. Once the unit is no longer in close combat, such characters automatically return to the front rank of their unit at the start of their following Movement phase.
For example, these Dwarfs have been charged in the flank by a Dragon. The Dragon is not in
contact with the Dwarf unit’s front rank, so the Dwarf Thane is permitted to move to another rank
in order to fight it.