Peltast more readily available to poorer members of society. The Athenian general Iphicrates destroyed a Spartan phalanx in the Battle of Lechaeum in 390 BCE, using mostly peltasts. In the account of Diodorus Siculus, Iphicrates is credited with re-arming his men with long spears, perhaps in around 374 BCE. This reform may have produced a type of "peltast" armed with a small shield, a sword, and a spear instead of javelins. Some authorities, such as J.G.P. Best, state that these later "peltasts" were not truly peltasts in the traditional sense, but lightly armored hoplites carrying the "pelte" shield in conjunction with
Ancient Greek warfare undermanned. However, the lightly armored Persian infantry proved no match for the heavily armored hoplites, and the Persian wings were quickly routed. The Greek wings then turned against the elite troops in the Persian centre, which had held the Greek centre until then. Marathon demonstrated to the Greeks the lethal potential of the hoplite, and firmly demonstrated that the Persians were not, after all, invincible. The revenge of the Persians was postponed 10 years by internal conflicts in the Persian Empire, until Darius's son Xerxes returned to Greece in 480 BC with a staggeringly large army (modern estimates suggest between