Ancient Greek warfare (important for small city-states), and relatively low cost (enough for each hoplite to provide their own equipment). The Phalanx also became a source of political influence because men had to provide their own equipment in order to be a part of the army. The ancient Greek city-states developed a military formation called the phalanx, which were rows of shoulder-to-shoulder hoplites. The Hoplites would lock their shields together, and the first few ranks of soldiers would project their spears out over the first rank of shields. The Phalanx therefore presented a shield wall and a mass of spear points to the
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