When a skirmishing unit charges another skirmishing unit, take the model of the charging unit which is closest to the charged unit and move it into base contact with the closest model in the charged unit. (Fig. 3)

Then, move all the models which can reach into a fighting line, lining them up with the first model moved. Other charging models that do not have enough movement to line up on the fighting line will form up behind it, as usual for skirmishers charging (Fig. 4)

Now the charged unit will form up as normal for a unit of skirmishers charged by an enemy unit. (Fig. 5)