Battle of Gaugamela main Persian infantry was poorly trained and equipped in comparison to Alexander's pezhetairoi and hoplites. The only respectable infantry Darius had were his 2,000 Greek hoplites and his personal bodyguard, the 10,000 Immortals. The Greek mercenaries fought in a phalanx, armed not with a heavy shield but with spears no longer than three metres, while the spears of the Immortals were two metres long. Among the other Persian troops, the most heavily armed were the Armenians, who were armed the Greek way and probably fought as a phalanx. The rest of Darius' contingents were much more lightly armed; the main
Battle of Lechaeum to march out. The Athenian commanders in Corinth, Iphicrates, who commanded the peltasts, and Callias, who commanded the hoplites, saw that an entire Spartan "mora", or regiment, of 600 men was marching past the city unprotected by either peltasts or cavalry, and decided to take advantage of this fact. Accordingly, the Athenian hoplites drew up a little outside Corinth, while the peltasts went after the Spartan force in pursuit, flinging javelins at the Spartan hoplites. To stop this, the Spartan commander ordered some of his men to charge the Athenians, but the peltasts fell back, easily outrunning the hoplites, and