Ancient Macedonian army at 4,500, asserting it was closer to 5,100 horsemen. The army led by Alexander the Great into the Persian Empire included Greek heavy infantry in the form of allied contingents provided by the League of Corinth and hired mercenaries. These infantrymen would have been equipped as hoplites with the traditional hoplite panoply consisting of a thrusting spear ("doru"), bronze-faced "hoplon" shield and body armour. In appearance, they would have been almost identical to the hypaspists. In battle, the Greek hoplites had a less active role than the Macedonian phalangites and hypaspists. At Gaugamela, the Greek infantry formed the defensive rear
Ancient Macedonian army almost invariably part of any force on detached duty, especially missions requiring speed of movement. Other nationalities also provided peltasts for the Macedonian army. Especially numerous were the Thracians; the Thracian peltasts performed the same function in battle as the Agrianians, but for the left wing of the army. It is unclear if the Thracians, Paeonians, and Illyrians fighting as javelin throwers, slingers, and archers serving in Macedonian armies from the reign of Philip II onward were conscripted as allies via a treaty or were simply hired mercenaries. Peltasts were armed with a number of javelins and a sword, carried