Thracian warfare In the 4th century BC, both infantry and cavalry troops started wearing helmets (some of leather) and some peltasts are seen with greaves. Principal weapons in the 4th century BC (as well as earlier) were the spear and short knife. Armor, when it was available (for the nobility), was at first leather or bronze but iron armour started appearing in the 4th century BC. Thracian cavalry would wear leather armor or no armor and would be armed with javelins, a bow, or a spear. Only royal cavalry would wear armor. Oval shields and peltes (even by heavy cavalry) were later
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