Ancient Greek warfare of the phalanx to its logical completion, arming his 'phalangites' (for they were assuredly not hoplites) with a fearsome pike, the 'sarissa'. Much more lightly armored, the Macedonian phalanx was not so much a shield-wall as a spear-wall. The Macedonian phalanx was a supreme defensive formation, but was not intended to be decisive offensively; instead, it was used to pin down the enemy infantry, whilst more mobile forces (such as cavalry) outflanked them. This 'combined arms' approach was furthered by the extensive use of skirmishers, such as peltasts. Tactically, Phillip absorbed the lessons of centuries of warfare in Greece. He
Battle of Delium made use of planned tactical warfare for one of the first times in recorded history. In the previous centuries, battles between Greek city states were relatively simple encounters between massed formations of hoplites, where cavalry played no important role and all depended on the unity and force of the massed ranks of the infantry, straining against the opponent. At Delium, Pagondas made use of deeper ranks, reserves, cavalry interventions, light-armed skirmishers (peltasts) and gradual changes in tactics during the battle. These novelties were to be later exploited in more famous Theban victories in the following century, led by Epaminondas in