Ancient Greek warfare and slingers ("sfendonitai") while archers ("toxotai") were rare, mainly from Crete, or mercenary non-Greek tribes (as at the crucial battle of Plataea 479 B.C.) Greek armies gradually downgraded the armor of the hoplites (to linen padded thorax and open helmets) to make the phalanx more flexible and upgraded the javelineers to lightly armored general purpose infantry ("thorakitai" and "thyreophoroi") with javelins and sometimes spears. Eventually, these types effectively complemented the Macedonian style phalanx which prevailed throughout Greece after Alexander the Great. Cavalry had always existed in Greek armies of the classical era but the cost of horses made it far
Ancient Greek mercenaries me master and great king". Greek hoplites were widely admired for their skill as soldiers. The demand led many Greeks who faced poverty or exile to enlist as mercenaries in the pay of another state. Others, not so burdened with worry, became mercenaries through a desire for loot and adventure. In many Greek states, including Athens, the threats from Persia and Macedon required strong defensive forces. One of the main problems in creating and maintaining military strength was that peasant citizens could not afford to abandon their smallholdings for long periods of service and so the demand for professional soldiers