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 Greek mercenaries them and hired them to his cause. Afterwards, he granted land to them alongside the Nile and they are traditionally held to have been the first Greeks to settle in Egypt. In the 5th century BC, Arcadian soldiers fought for Xerxes I in 480 when he led the Persian invasion of Greece. Later in the century, many Greek mercenaries were employed by Persian satraps, especially in Anatolia. During the Peloponnesian War, mercenaries from Thrace and other outlying regions were hired by both sides as hoplites and peltasts. In 401 BC, many Greeks supported Cyrus the Younger in his campaign against