iodorus tells us (16.3.1-2) that it was Philip who introduced improvements in the organisation of Macedonian armies and (“foot-companions”). The phalanx was organised into six taxeis (sing. ), each with 1,500 men (or 1,536) each recruited from men of one of the six regions of Macedonia. In usual circumstances, this formation was drawn up sixteen ranks deep, although it had remarkable tactical flexibility.
