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
Peltast example, in the Hellenica [3.2.16] Xenophon writes 'When Dercylidas learned this (that a Persian army was nearby), he ordered his officers to form their men in line, eight ranks deep (the hoplite phalanx), as quickly as possible, and to station the peltasts on either wing along with the cavalry. They could also operate in support of other light troops, such as archers and slingers. When faced by hoplites, peltasts operated by throwing javelins at short range. If the hoplites charged, the peltasts would retreat. As they carried considerably lighter equipment than the hoplites, they were usually able to evade successfully,