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Ancient Warfare: From Thermopylae to Cannae

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Course outline

Module 1 Module 1: Greek Hoplites and the Battle of Thermopylae

Greek Hoplites and the Battle of Thermopylae

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. What was the primary offensive and defensive infantry unit of the ancient Greek city-states?
  • A. The cavalry squadron (hippeis)
  • B. The hoplite, a heavily armored spearman fighting in a phalanx ✓
  • C. The light skirmisher armed with javelins and slings
  • D. The chariot archer operating in open formation

Why: Hoplites were citizen-soldiers who supplied their own bronze armor, large round shield (hoplon), spear, and sword, and fought shoulder to shoulder in the phalanx formation that defined Greek battle tactics.

Q2. Which Greek city-state was renowned for its professional, militarized society and produced the most feared hoplite army of the Classical era?
  • A. Athens
  • B. Corinth
  • C. Sparta ✓
  • D. Thebes

Why: Sparta maintained a full-time military training system (the agoge) and a population of helots that required a constant standing army, giving it hoplites with exceptional discipline and cohesion.

Q3. Who led the Greek forces at the Battle of Thermopylae in 480 BCE against the Persian army of Xerxes?
  • A. Themistocles of Athens
  • B. Pausanias of Sparta
  • C. Leonidas I of Sparta ✓
  • D. Miltiades of Athens

Why: King Leonidas I of Sparta commanded the allied Greek force at the narrow pass of Thermopylae, holding the Persians back for several days before being defeated when a path around the position was revealed.

Q4. What was the main geographic feature that made the pass at Thermopylae strategically important for the defending Greeks?
  • A. A large river that blocked the Persian advance
  • B. A narrow coastal passage between mountains and the sea that limited the front the Persians could use ✓
  • C. A dense forest that concealed Greek ambushes
  • D. A walled city that could be defended indefinitely

Why: The pass was extremely narrow, squeezed between steep mountains and the Malian Gulf, so the vast Persian numbers could not be deployed fully and the Greek hoplites could hold a short line against them.

Q5. What is the name of the Greek phalanx's defining formation requirement, in which each hoplite's shield protected the warrior on his left side?
  • A. The wedge formation
  • B. The open order
  • C. The shield-overlap formation ✓
  • D. The flanking column

Why: In the phalanx, each hoplite held his shield on his left arm, which protected the man to his left; this meant soldiers drifted rightward and the line relied on tight shield-overlap for mutual protection.

Module 2 Module 2: Persian Empire and Its Military Machine

Persian Empire and Its Military Machine

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. Which Persian king is traditionally credited with organizing the Achaemenid Empire's vast army and expanding its road network to support military logistics?
  • A. Cyrus the Great
  • B. Darius I ✓
  • C. Xerxes I
  • D. Cambyses II

Why: Darius I (r. 522–486 BCE) reorganized the empire into satrapies, standardized taxation, and built and maintained the Royal Road, which allowed messages and troops to move quickly across the empire.

Q2. What was the name of the elite Persian infantry unit made up of 10,000 soldiers, known for their gold and silver spear-butts?
  • A. The Immortals ✓
  • B. The Sacred Band
  • C. The Epigoi
  • D. The Hypaspists

Why: The Immortals were the king's elite guard of roughly 10,000 men. The name came from the practice of always keeping the unit at full strength, replacing any fallen member immediately.

Q3. Which battle, fought in 480 BCE, saw a small Greek force hold a narrow mountain pass against the army of Xerxes I for several days?
  • A. Marathon
  • B. Plataea
  • C. Thermopylae ✓
  • D. Salamis

Why: At Thermopylae, the Spartan-led Greek force under Leonidas I held the narrow coastal pass against Xerxes' much larger army, which was only broken after a traitor revealed a mountain path around the Greek position.

Q4. Persian armies relied heavily on which type of troops, often drawn from subject peoples and famed for their mounted skill and archery?
  • A. Heavy phalanx infantry
  • B. Light skirmishers and cavalry archers ✓
  • C. War elephants
  • D. Siege engineers

Why: Persian forces were a multi-ethnic coalition whose strengths included archers, javelin throwers, and cavalry, with contingents supplied by different satrapies and subject peoples, rather than the heavy Greek-style hoplite phalanx.

Q5. What was the primary function of the Royal Road in the Persian military system?
  • A. Carrying trade goods for private merchants only
  • B. Enabling rapid communication and troop movement across the empire ✓
  • C. Serving as a religious pilgrimage route
  • D. Marking the boundary between satrapies

Why: The Royal Road stretched roughly 2,500 kilometers from Sardis to Susa and used a relay system of couriers and stations, letting the king send orders and move forces across a vast empire far faster than was otherwise possible.

Module 3 Module 3: Athenian Naval Power and Salamis

Athenian Naval Power and Salamis

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. What was the primary reason the Athenian fleet became so important during the Persian Wars?
  • A. Athens had the largest army in Greece at the time
  • B. Themistocles persuaded Athens to invest in a large trireme fleet using silver from the Laurion mines ✓
  • C. Athens allied with Egypt to gain access to Phoenician ships
  • D. The Persians had no naval forces that could challenge Athens

Why: Themistocles convinced the Athenians to use a windfall of silver from the Laurion mines to build a fleet of about 200 triremes rather than distribute the money among citizens. This naval investment proved decisive at Salamis.

Q2. What type of warship was the main battle vessel of the Greek navies at Salamis?
  • A. The quinquereme
  • B. The longship
  • C. The trireme ✓
  • D. The galley with a single bank of oars

Why: The trireme, a fast warship powered by three tiers of oarsmen and equipped with a bronze ram, was the standard warship of the Greek navies in the fifth century BCE, including at Salamis in 480 BCE.

Q3. Why did the Greek fleet fight in the narrow waters of the Straits of Salamis?
  • A. The Persian fleet had been trapped there by a storm
  • B. The narrow waters neutralized the numerical advantage of the larger Persian fleet ✓
  • C. The Greeks wanted to protect the city of Megara from attack
  • D. The Persians required shallow water to land their infantry

Why: In the confined straits, the Persians could not deploy their much larger fleet effectively. Their ships became crowded and disordered, limiting their ability to maneuver and use their numbers.

Q4. Which Athenian general is traditionally credited with devising the strategy that lured the Persian fleet into the straits of Salamis?
  • A. Pericles
  • B. Miltiades
  • C. Themistocles ✓
  • D. Leonidas

Why: Themistocles is credited by the historian Herodotus with the strategy of luring the Persians into the narrow straits, partly by sending a message to Xerxes claiming the Greeks were planning to flee.

Q5. What was the approximate outcome of the Battle of Salamis for the Persian fleet?
  • A. The Persians captured the Greek fleet and advanced on Athens
  • B. The battle ended in a stalemate and both fleets withdrew
  • C. The Persian fleet suffered heavy losses and Xerxes withdrew much of his force from Greece ✓
  • D. The Persians destroyed the Athenian navy but lost their own ships in a storm

Why: The Greek victory at Salamis in 480 BCE was a major defeat for Xerxes. Heavy Persian losses and the threat to his lines of communication led him to withdraw a substantial part of his forces, limiting the Persian campaign for the following year.

Module 4 Module 4: Macedonian Phalanx Under Philip II and Alexander

Macedonian Phalanx Under Philip II and Alexander

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. What was the primary weapon carried by the soldiers of the Macedonian phalanx?
  • A. A short gladius
  • B. A long pike called the sarissa ✓
  • C. A javelin thrown before close combat
  • D. A curved sickle-sword called the kopis

Why: The Macedonian phalanx was armed with the sarissa, a pike roughly 5 to 6 meters long. Its length allowed the front ranks to project a dense wall of points beyond the formation, which made the phalanx extremely difficult to attack head-on.

Q2. Who is generally credited with reforming the Macedonian army into the formidable phalanx that Alexander later used?
  • A. Alexander the Great
  • B. Philip II of Macedon ✓
  • C. Demetrius Poliorcetes
  • D. Leonidas I of Sparta

Why: Philip II reorganized the Macedonian army during his reign from 359 to 336 BCE. He introduced the longer sarissa, professional training, and combined arms tactics, creating the disciplined phalanx that his son Alexander used to conquer Persia.

Q3. What was the main role of the hypaspists in the Macedonian army?
  • A. They served as heavy cavalry charging the enemy flanks
  • B. They were elite light infantry that fought alongside the phalanx and could fill gaps or maneuver flexibly ✓
  • C. They operated siege engines during city assaults
  • D. They guarded the royal treasury and baggage train

Why: The hypaspists were an elite infantry corps that carried shorter spears and shields rather than the sarissa. They were more mobile than the phalanx and could be deployed to exploit openings, protect flanks, or support the cavalry.

Q4. Which battle in 338 BCE demonstrated the effectiveness of Philip II's combined use of phalanx and cavalry against a Greek coalition?
  • A. The Battle of Gaugamela
  • B. The Battle of the Granicus
  • C. The Battle of Chaeronea ✓
  • D. The Battle of Issus

Why: At Chaeronea, Philip II defeated an alliance of Athens and Thebes. He used his phalanx to pin the enemy line while his son Alexander led the companion cavalry to break the Theban Sacred Band, securing a decisive victory that gave Macedon dominance over Greece.

Q5. What was the Macedonian cavalry unit led by Alexander at the Battle of the Granicus called?
  • A. The Scythian Horse
  • B. The Companion Cavalry (Hetairoi) ✓
  • C. The Thessalian Lancers
  • D. The Sacred Band

Why: The Companion Cavalry, known as the Hetairoi, was the elite heavy cavalry of the Macedonian army. Alexander personally led them, and they were used to deliver decisive shock attacks against enemy lines and commanders.

Module 5 Module 5: Roman Legion Organization and Expansion

Roman Legion Organization and Expansion

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. What was the basic organizational unit of the Roman legion during the Republic, consisting of roughly 60 to 120 men?
  • A. The contubernium
  • B. The centuria ✓
  • C. The cohort
  • D. The maniple

Why: The centuria, led by a centurion, was the basic subunit of the legion. Its size is traditionally given as 80 men, though strengths varied in practice. The contubernium was a squad of about eight men sharing a tent, and the cohort and maniple were larger groupings.

Q2. Under the reforms commonly attributed to Gaius Marius around 107 BCE, which change most significantly altered the legion?
  • A. Recruiting soldiers only from the wealthiest citizens
  • B. Replacing the property-based census requirement with recruitment of landless citizens ✓
  • C. Abolishing the centurion rank entirely
  • D. Reducing legions to a fixed strength of 1,000 men

Why: Marius opened recruitment to the landless proletarii, who previously could not afford their own equipment. This made the army more dependent on the state and on the commander who led them, a shift with long-term political consequences.

Q3. Which weapon was the standard javelin carried by Roman legionaries of the Republic and early Empire?
  • A. The sarissa
  • B. The pilum ✓
  • C. The falcata
  • D. The lancea

Why: The pilum was a heavy javelin with a long iron shank designed to bend on impact, preventing enemies from throwing it back and encumbering their shields. The sarissa was a Macedonian pike, the falcata a Iberian sword, and the lancea a light spear used by auxiliaries.

Q4. Roughly how many legions did Rome maintain at the height of the late Republic and early Empire under Augustus?
  • A. About 4 legions
  • B. About 10 legions
  • C. About 28 legions ✓
  • D. About 60 legions

Why: Augustus left around 28 legions at the end of his reign, though this number fluctuated with campaigns and losses such as the disaster in the Teutoburg Forest, after which some legions were disbanded or renumbered. Earlier in the Republic, Rome typically fielded only a few legions per year.

Q5. What was the role of auxiliary troops (auxilia) in the Roman army?
  • A. They were citizen soldiers who formed the core heavy infantry of each legion
  • B. They were non-citizen provincial troops who supplemented the legions, often in specialized roles like archers and cavalry ✓
  • C. They were slaves who served as camp laborers and were never armed
  • D. They were naval marines who fought only at sea

Why: Auxiliaries were recruited from non-citizens in the provinces and typically served for 25 years, after which they received Roman citizenship. They provided light infantry, archers, and cavalry that the legions lacked, making the army a combined force.

Module 6 Module 6: Carthage, Hannibal, and the Crossing of the Alps

Carthage, Hannibal, and the Crossing of the Alps

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. In which year did Hannibal Barca lead his army across the Alps into Italy during the Second Punic War?
  • A. 218 BCE ✓
  • B. 264 BCE
  • C. 146 BCE
  • D. 202 BCE

Why: Hannibal began his march from Iberia in 218 BCE and crossed the Alps later that year, launching the invasion of Italy. The other dates mark the First Punic War (264 BCE), the destruction of Carthage (146 BCE), and the Battle of Zama (202 BCE).

Q2. Which city was Hannibal's main rival power in the western Mediterranean during the Punic Wars?
  • A. Syracuse
  • B. Carthage
  • C. Rome ✓
  • D. Massalia

Why: Hannibal's opponent throughout the Second Punic War was Rome. Carthage was his home city, Syracuse was a Greek city-state in Sicily, and Massalia (Marseille) was a Greek colony in Gaul.

Q3. What was the name of the great Roman defeat at Lake Trasimene and Cannae's predecessor that Hannibal inflicted in 217 BCE?
  • A. The Battle of Zama
  • B. The Battle of Trebia ✓
  • C. The Battle of Metaurus
  • D. The Battle of Ilipa

Why: Hannibal's early victories in Italy included Trebia (218 BCE) and Lake Trasimene (217 BCE). The Battle of Zama (202 BCE) ended the war, Metaurus (207 BCE) saw Hannibal's brother Hasdrubal killed, and Ilipa (206 BCE) was fought in Iberia.

Q4. Which animals did Hannibal reportedly use to help his army cross the Alps and to terrify Roman forces?
  • A. Camels
  • B. War elephants ✓
  • C. Horses
  • D. Lions

Why: Hannibal brought war elephants across the Alps, which were used in battles such as Trebia and Trasimene. Camels were more associated with North African and desert campaigns, while horses and lions did not play this famous role.

Q5. Which Roman general was defeated by Hannibal at the Battle of Cannae in 216 BCE?
  • A. Scipio Africanus
  • B. Fabius Maximus
  • C. Marcus Claudius Marcellus
  • D. Lucius Aemilius Paullus ✓

Why: Lucius Aemilius Paullus, along with consul Gaius Terentius Varro, commanded the large Roman army crushed at Cannae. Scipio Africanus later defeated Hannibal at Zama, Fabius Maximus was known for his delaying tactics, and Marcellus fought Hannibal in Italy but was not the commander at Cannae.

Module 7 Module 7: Cannae and the Tactics of Encirclement

Cannae and the Tactics of Encirclement

Introduction

Core content I

Core content II

Core content III

Summary

Further learning

Knowledge check

Q1. In which year BCE was the Battle of Cannae fought?
  • A. 218 BCE
  • B. 216 BCE ✓
  • C. 201 BCE
  • D. 480 BCE

Why: The Battle of Cannae took place in 216 BCE during the Second Punic War, when Hannibal's Carthaginian army defeated a much larger Roman force in southern Italy.

Q2. Who was the Carthaginian general who won the Battle of Cannae?
  • A. Scipio Africanus
  • B. Hasdrubal Barca
  • C. Hannibal Barca ✓
  • D. Hamilcar Barca

Why: Hannibal Barca commanded the Carthaginian forces at Cannae and designed the double envelopment that destroyed the Roman army.

Q3. What was the name of the tactical formation Hannibal used to encircle the Romans at Cannae?
  • A. The phalanx
  • B. The testudo
  • C. The double envelopment ✓
  • D. The wedge formation

Why: Hannibal used a double envelopment, in which his center gave way while his flanking cavalry and infantry wheeled around to surround the Roman legions from the sides and rear.

Q4. Which cavalry commander led the Carthaginian horsemen that broke the Roman cavalry and attacked the Roman rear at Cannae?
  • A. Maharbal ✓
  • B. Gisgo
  • C. Hanno
  • D. Mago

Why: Maharbal commanded the Numidian cavalry on the Carthaginian side, and his forces helped rout the Roman horsemen before swinging around to attack the legions from behind.

Q5. Why was the Roman army at Cannae at a disadvantage in terms of its formation?
  • A. It had been caught crossing a river
  • B. It was packed into a deep, narrow formation with little room to maneuver ✓
  • C. It had no cavalry at all
  • D. It was positioned with its back to a mountain range

Why: The Romans crowded into a deep formation to press their advantage in numbers, which left soldiers unable to use their weapons fully or maneuver once Hannibal's flanks closed in.

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