Peltasts carried a crescent-shaped wicker shield called pelte (Latin: peltarion) as their main protection, hence their name. According to Aristotle the pelte was rimless and covered in goat or sheep skin. Some literary sources imply that the shield could be round but in art it is usually shown as crescent shaped. It also appears in Scythian art and may have been a common type in Central Europe. The shield could be carried with a central strap and a hand grip near the rim or with just a central hand-grip. It may also have had a carrying strap (or baldric) as Thracian peltasts slung their shields on their backs when evading the enemy. Peltasts' weapons consisted of several javelins, which may have had throwing straps to allow more force to be applied to a throw.
The style of fighting used by peltasts originated in Thrace and the first Greek peltasts were recruited from the Greek cities of the Thracian coast. On vases and other images they are generally depicted wearing the costume of Thrace including the distinctive Phrygian cap. This was made of fox-skin and had ear flaps. They also usually wear patterned tunic, fawnskin boots and a long cloak called a zeira decorated with a bright, geometric, pattern. However, many mercenary peltasts were probably recruited in Greece. Some vases have also been found showing hoplites (men wearing Corinthian helmets, greaves and cuirasses, holding hoplite spears) carrying peltes. Often, the mythical Amazons (women warriors) are shown with peltast equipment.
Peltasts gradually became more important in Greek warfare, in particular during the Peloponnesian War.
Xenophon in the Anabasis describes peltasts in action against Persian cavalry at the Battle of Cunaxa in 401 BCE where they were serving as part of the mercenary force of Cyrus the Younger. In [1.10.7]
Tissaphernes had not fled at the first charge (by the Greek troops), but had instead charged along the river through the Greek peltasts. However he did not kill a single man as he passed through. The Greeks opened their ranks (to allow the Persian cavalry through) and proceeded to deal blows (with swords) and throw javelins at them as they went through.
Xenophon's description makes it clear that these peltasts were armed with swords, as well as javelins, but not with spears. When faced with a charge from the Persian cavalry they opened their ranks and allowed the cavalry through while striking them with swords and hurling javelins at them.
They became the main type of Greek mercenary infantry in the 4th century BCE. Their equipment was less expensive than traditional hoplite equipment and would have been 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 "peltasts" 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 longer spears—a combination that has been interpreted as a direct ancestor to the Macedonian phalanx. However, thrusting spears are included on some illustrations of peltasts before the time of Iphicrates and some peltasts may have carried them as well as javelins rather than as a replacement for them. As no battle accounts actually describe peltasts using thrusting spears it may be that they were sometimes carried by individuals by choice rather than as part of a policy or reform. The Lykian sarcophagas of Payava from about 400 BCE depicts a soldier carrying a round pelte but using a thrusting spear overarm. He wears a pilos helmet with cheekpieces but no armour. His equipment therefore resembles Iphicrates's supposed new troops. 4th century BCE peltasts also seem to have sometimes worn both helmets and linen armour.
Alexander the Great employed peltasts drawn from the Thracian tribes to the north of Macedonia, particularly the Agrianoi. In the 3rd century BC peltasts were gradually replaced with thureophoroi. Later references to peltasts may not in fact refer to their style of equipment as the word peltast became a synonym for mercenary.
Anatolian Peltasts 
A tradition of fighting with javelins, light shield and sometimes spear existed in Anatolia and several contingents armed like this appeared in Xerxes I's army which invaded Greece in 480 BC. For example the Paphlagonians and Phrygians wore wicker helmets and native boots reaching halfway to the knee. They carried small shields, short spears, javelins and daggers.
Peltasts in the Persian Army 
From the mid 5th century BC onwards, peltast soldiers began to appear in Greek depictions of Persian troops. They were equipped like Greek and Thracian peltasts but were dressed in typically Persian Army uniforms. They often carried a light axe known as a sagaris as a sidearm. It has been suggested that these troops were known in Persian as takabara and their shields as taka. The Persians may have been influenced by Greek and Thracian peltasts. Another alternative source of influence would have been the Anatolian hill tribes such as the Kurds, Mysians or Pisidians. In Greek sources, these troops were called either peltasts or peltophoroi (bearers of pelte).
'Peltasts' in the Antigonid Army 
In the Hellenistic period the Antigonid kings of Macedon had an elite corps of native Macedonian 'Peltasts'. However this force should not be confused with the skirmishing peltasts discussed earlier. The 'Peltasts' were probably, according to F.W. Walbank, about 3,000 in number, although by the Third Macedonian War this went up to 5,000 (most likely to accommodate the elite Agema which was a sub-unit in the 'Peltast' corps). The fact that they are always mentioned as being in their thousands suggest that in terms of organization the 'Peltats' were organized into Chiliarchies. This elite corps was most likely of the same status, of similar equipment and role as Alexander the Great's Hypaspists. Within this corps of 'peltasts' was its elite formation, the Agema. These troops were used on forced marches by Philip V of Macedon so this suggests that they were lightly equipped and mobile. However at the battle of Pydna in 168 BC, Livy remarks on how the Macedonian 'Peltasts' defeated the Paeligni and of how this shows the dangers of going directly at the front of a phalanx. Though it may seem strange for a unit that would fight in phalanx formation to be called 'peltasts', 'pelte' would not be an inappropriate name for a Macedonian shield. They may have been similarly equipped with the Iphicratean hoplites or peltasts, as described by Diodorus.
Peltasts were usually deployed on the flanks of the phalanx providing a link with any cavalry or in rough or broken ground. For example in the Hellenica [3.2.16] Xenophon writes 'When Dercylidas learned this (that a Persian army was nearby), he ordered his officers to form their men in line, eight ranks deep (the hoplite phalanx), as quickly as possible, and to station the peltasts on either wing along with the cavalry. They could also operate in support of other light troops such as archers and slingers.
When faced by hoplites, peltasts operated by throwing javelins at short range. If the hoplites charged, they would flee. As they carried considerably lighter equipment than the hoplites, they were usually able to evade successfully, especially in difficult terrain. They would then return to the attack once the pursuit ended, if possible taking advantage of any disorder created in the hoplites' ranks. At the Battle of Sphacteria the Athenian forces included 800 archers and at least 800 peltasts. Thucydides in the History of the Peloponnesian War [4.33] writes
They (the Spartan hoplites) themselves were held up by the weapons shot at them from both flanks by the light troops. Though they (the hoplites) drove back the light troops at any point in which they ran in and approached too closely, they (the light troops) still fought back even in retreat, since they had no heavy equipment and could easily outdistance their pursuers over ground where, since the place had been uninhabited until then, the going was rough and difficult.
When fighting other types of light troops, peltasts were able to close more aggressively in melee as they had the advantage of possessing shields, swords, and helmets.
See also 
- Best, J. G. P. (1969). Thracian Peltasts and their influence on Greek warfare.
- Connolly, Peter (1981). Greece and Rome at War. Macdonald (Black Cat, 1988). ISBN 0-7481-0109-8
- Diodorus Siculus. History.
- Head, Duncan (1982). Armies of the Macedonian and Punic Wars. WRG.
- Head, Duncan (1992). The Achaemenid Persian Army. Montvert. ISBN 1-874101-00-0
- Herodotus.The Histories
- "Light Infantry", special issue of Ancient Warfare, 2/1 (2008)
- Sekunda, Nicholas V (1988). Achaemenid Military Terminology. Arch. Mitt. aus Iran 21
- Sekunda, N (1992). The Persian Army 560–330 BC. Osprey. ISBN 1-85532-250-1
- Thucydides. The History of the Peloponnesian War.
- Xenophon. Anabasis.
- Xenophon. Hellenica.
- Xenophon. Anabasis. [1.10.7].
- Diodorus Siculus, Bibliotheca Historica, XV.44
- Herodotus: Histories [7:70]
- Head, Duncan (1992), p40
- Sekunda, Nicholas V (1988), p69.
- Sekunda, N (1992), p24
- Xenophon. Hellenica. [3.2.16].