Hoplites were citizen-soldiers of Ancient Greek city-states who were primarily armed with spears and shields. Hoplite soldiers used the phalanx formation to be effective in war with fewer soldiers. The formation discouraged the soldiers from acting alone, for this would compromise the formation and minimize its strengths. The hoplites were primarily represented by free citizens – propertied farmers and artisans – who were able to afford a linen armour or a bronze armour suit and weapons. Most hoplites were not professional soldiers and often lacked sufficient military training. Some states maintained a small elite professional unit, known as the epilektoi or logades since they were picked from the regular citizen infantry. These existed at times in Athens, Sparta, Argos, Thebes, and Syracuse, among other places. Hoplite soldiers made up the bulk of ancient Greek armies.
Infantry is a military specialization of military personnel who engage in ground combat on foot. Infantry generally consists of light infantry, irregular infantry, heavy infantry, mountain infantry, motorized infantry, mechanized infantry, airborne infantry, air assault infantry, and naval infantry.
Combined arms is an approach to warfare that seeks to integrate different combat arms of a military to achieve mutually complementary effects—for example, using infantry and armour in an urban environment in which each supports the other.
A cataphract was a form of armored heavy cavalry that originated in Persia and was fielded in ancient warfare throughout Eurasia and Northern Africa.
The Battle of Gaugamela, also called the Battle of Arbela, took place in 331 BC between the forces of the Army of Macedon under Alexander the Great and the Persian Army under King Darius III. It was the second and final battle between the two kings, and is considered to be the final blow to the Achaemenid Empire, resulting in its complete conquest by Alexander.
Immortals or Persian Immortals was the name given by Herodotus to an elite heavy infantry unit of 10,000 soldiers in the army of the Achaemenid Empire. The unit served in a dual capacity through its role as imperial guard alongside its contribution to the ranks of the Persian Empire's standing army. While it primarily consisted of Persians, the Immortals force also included Medes and Elamites. Essential questions regarding the historic unit remain unanswered because authoritative sources are missing.
A peltast was a type of light infantry originating in Thrace and Paeonia and named after the kind of shield he carried. Thucydides mentions the Thracian peltasts, while Xenophon in the Anabasis distinguishes the Thracian and Greek peltast troops.
The phalanx was a rectangular mass military formation, usually composed entirely of heavy infantry armed with spears, pikes, sarissas, or similar pole weapons. The term is particularly used to describe the use of this formation in ancient Greek warfare, although the ancient Greek writers used it to also describe any massed infantry formation, regardless of its equipment. Arrian uses the term in his Array against the Alans when he refers to his legions. In Greek texts, the phalanx may be deployed for battle, on the march, or even camped, thus describing the mass of infantry or cavalry that would deploy in line during battle. They marched forward as one entity.
A shield wall is a military formation that was common in ancient and medieval warfare. There were many slight variations of this formation, but the common factor was soldiers standing shoulder to shoulder and holding their shields so that they would abut or overlap. Each soldier thus benefited from the protection of the shields of his neighbors and his own.
The army of the Kingdom of Macedon was among the greatest military forces of the ancient world. It was created and made formidable by King Philip II of Macedon; previously the army of Macedon had been of little account in the politics of the Greek world, and Macedonia had been regarded as a second-rate power.
The Sasanian army was the primary military body of the Sasanian armed forces, serving alongside the Sasanian navy. The birth of the army dates back to the rise of Ardashir I, the founder of the Sasanian Empire, to the throne. Ardashir aimed at the revival of the Persian Empire, and to further this aim, he reformed the military by forming a standing army which was under his personal command and whose officers were separate from satraps, local princes and nobility. He restored the Achaemenid military organizations, retained the Parthian cavalry model, and employed new types of armour and siege warfare techniques. This was the beginning for a military system which served him and his successors for over 400 years, during which the Sasanian Empire was, along with the Roman Empire and later the East Roman Empire, one of the two superpowers of Late Antiquity in Western Eurasia. The Sasanian army protected Eranshahr from the East against the incursions of central Asiatic nomads like the Hephthalites and Turks, while in the west it was engaged in a recurrent struggle against the Roman Empire.
Warfare occurred throughout the history of Ancient Greece, from the Greek Dark Ages onward. The Greek 'Dark Ages' drew to an end as a significant increase in population allowed urbanized culture to be restored, which led to the rise of the city-states (Poleis). These developments ushered in the period of Archaic Greece. They also restored the capability of organized warfare between these Poleis. The fractious nature of Ancient Greek society seems to have made continuous conflict on this larger scale inevitable.
Heavy cavalry was a class of cavalry intended to deliver a battlefield charge and also to act as a tactical reserve; they are also often termed shock cavalry. Although their equipment differed greatly depending on the region and historical period, heavy cavalry were generally mounted on large powerful warhorses, wore body armor, and armed with either lances, swords, maces, flails (disputed), battle axes, or war hammers; their mounts may also have been protected by barding. They were distinct from light cavalry, who were intended for raiding, reconnaissance, screening, skirmishing, patrolling, and tactical communications.
For much of history, humans have used some form of cavalry for war and, as a result, cavalry tactics have evolved over time. Tactically, the main advantages of cavalry over infantry were greater mobility, a larger impact, and a higher riding position.
Heavy infantry consisted of heavily armed and armoured infantrymen who were trained to mount frontal assaults and/or anchor the defensive center of a battle line. This differentiated them from light infantry who are relatively mobile and lightly armoured skirmisher troops intended for screening, scouting, and other tactical roles unsuited to soldiers carrying heavier loads. Heavy infantry typically made use of dense battlefield formations, such as shield wall or phalanx, multiplying their effective weight of arms with force concentration.
The Hellenistic armies is the term applied to the armies of the successor kingdoms of the Hellenistic period. The Hellenistic armies emerged after the death of Alexander the Great ini 323 BCE, when his empire was split between his successors, also known as the Diadochi. During the Wars of the Diadochi, the Macedonian army under Philip II and Alexander gradually adopted new units and tactics, further developing Macedonian warfare and improving on the tactics used in the Classical era. The armies of the Diadochi bear few differences from those of Alexander, but during the era of the Epigonoi, the differences were obvious, favoring numbers over quality and weight over maneuverability. The limited availability of Greek conscripts in the east led to an increasing dependence on mercenary forces, whereas in the west, Hellenistic armies were continuously involved in wars, which soon exhausted local manpower, paving the way for Roman supremacy. The major Hellenistic states were the Seleucid Empire, Ptolemaic Egypt and Macedonia during the Antigonid kingdom. Smaller states included Attalid Pergamum, Pontus, Epirus, the Achaean League, the Aetolian League, Syracuse, and other nations such as Athens, Sparta, etc.
Despite the rise of knightly cavalry in the 11th century, infantry played an important role throughout the Middle Ages on both the battlefield and in sieges. From the 14th century onwards, there was a rise in the prominence of infantry forces, sometimes referred to as an "infantry revolution".
Ancient Greek weapons and armor were primarily geared towards combat between individuals. Their primary technique was called the phalanx, a formation consisting of massed shield wall, which required heavy frontal armor and medium-ranged weapons such as spears. Soldiers were required to provide their own panoply, which could prove expensive, however the lack of any official peace-keeping force meant that most Greek citizens carried weapons as a matter of course for self-defence. Because individuals provided their own equipment, there was considerable diversity in arms and armor among the Hellenistic troops.
The Macedonian phalanx was an infantry formation developed by Philip II from the classical Greek phalanx, of which the main innovation was the use of the sarissa, a 6-metre pike. It was famously commanded by Philip's son Alexander the Great during his conquest of the Achaemenid Empire between 334 and 323 BC. The Macedonian phalanx model then spread throughout the Hellenistic world, where it became the standard battle formation for pitched battles. During the Macedonian Wars against the Roman Republic, the phalanx appeared obsolete against the more manoeuvrable Roman legions.
The military tactics of Alexander the Great show that he was one of the greatest generals in history. During the Battle of Chaeronea, won against the Athenian and Theban armies, and the battles of Granicius and of Issus, won against the Achaemenid Persian army of Darius III, Alexander employed the so-called "hammer and anvil" tactic. However, in the Battle of Gaugamela, the Persians possessed an army vastly superior in numbers to the Macedonian army. This tactic of encirclement by rapid shock units was not very feasible. Alexander had to compose and decide on an innovative combat formation for the time; he arranged his units in levels; he pretended to want to encircle the enemy in order to better divide it and thus opened a breach in its defensive lines.
