Siege of Carthage (Third Punic War)

Lore & Background

In 149 BC, a large Roman army landed at Utica in North Africa. The Carthaginians hoped to appease the Romans, but despite surrendering all of their weapons, the Romans pressed on to besiege the city. The Roman campaign suffered repeated setbacks through 149 BC, only alleviated by Scipio Aemilianus, a middle-ranking officer. A new Roman commander took over in 148 BC, and fared equally badly. At the annual election of Roman magistrates in early 147 BC, public support for Scipio was so great that the usual age restrictions were lifted to allow him to be appointed commander in Africa. Scipio's term began with two Carthaginian successes, but he tightened the siege and commenced construction of a large mole to prevent supplies from getting into Carthage. The Carthaginians had partially rebuilt their fleet and it sortied; after an indecisive engagement the Carthaginians mismanaged their withdrawal and lost many ships. The Romans then built a large brick structure in the harbour area, which dominated the city wall. In early 146 BC the Romans launched their final assault, and over one week systematically destroyed the city and killed its inhabitants; only on the last day did they take 50,000 prisoners, who were sold into slavery. The formerly Carthaginian territories became the Roman province of Africa, with Utica as its capital.

Reader's Guide

The main source for almost every aspect of the Third Punic War is the historian Polybius. His work is considered broadly objective and largely neutral. The accuracy of Polybius's account has been much debated, but the modern consensus is to accept it largely at face value. Other ancient histories exist, including Appian's account, which is especially valuable. Modern historians also consider writings of various Roman annalists, Diodorus Siculus, Livy, Plutarch, and Dio Cassius. Other sources include coins, inscriptions, archaeological evidence, and empirical evidence from reconstructions.

Did You Know?

• The city of Carthage was an unusually large city for the time, with a population estimated between 150,000 to 250,000.
• The Carthaginians surrendered 200,000 sets of armor and 2,000 catapults before the siege began.
• Scipio Aemilianus was a middle-ranking officer who later became commander due to public support.

From Disarmament to Demolition – The Roman Campaign's Turbulent Path

In 149 BC, a large Roman force under consuls Manius Manilius and Lucius Censorius landed at the North African port of Utica. The Carthaginians, desperate to avoid conflict, surrendered their entire arsenal—records cite 200,000 sets of armour and 2,000 catapults—and their warships were burned in the harbour. Yet Rome's demands did not stop there: the consuls ordered the city's inhabitants to relocate sixteen kilometres inland, a condition Carthage refused. What followed was a grinding, nearly three-year siege marked by repeated Roman setbacks throughout 149 BC. A replacement commander in 148 BC fared no better. The turning point came through an unlikely figure: Scipio Aemilianus, then merely a middle-ranking officer, who distinguished himself repeatedly on the battlefield. By early 147 BC, public enthusiasm for him was so overwhelming that the Senate lifted the usual age restrictions to appoint him commander in Africa. His elevation transformed a stalled campaign into a decisive, methodical siege operation.

The Final Assault and the Eradication of a Civilization

Scipio Aemilianus opened his command with two Carthaginian victories, but he quickly tightened the noose. He ordered the construction of a massive mole to cut off blockade runners and prevent supplies from reaching the city by sea. The Carthaginians, who had partially rebuilt their fleet, launched a surprise sortie; the ensuing naval engagement was indecisive, but their botched withdrawal cost them many ships. Seizing the advantage, the Romans erected a large brick structure in the harbour area that dominated the city wall, giving them a commanding position for the final blow. In early 146 BC, the Romans launched their decisive assault. Over the course of one week, they systematically razed the city and killed its inhabitants. Only on the final day did they take prisoners—fifty thousand Carthaginians were captured and sold into slavery. The former Carthaginian territories were reorganized into the Roman province of Africa, with Utica designated as its capital. It would be a full century before the site of Carthage was rebuilt as a Roman city.

The Long Road to War – Subjugation, Provocation, and Pretext

The roots of the Third Punic War stretched back to the peace terms imposed after the Second Punic War ended in 201 BC. Carthage lost its overseas territories, paid a massive indemnity of 10,000 silver talents over fifty years, surrendered hostages, and was forbidden from possessing war elephants or maintaining more than ten warships. Crucially, it could wage war only with Rome's permission. Over the next half-century, the Roman ally Masinissa, the most powerful Numidian ruler, repeatedly seized Carthaginian lands, and every time Carthage petitioned Rome for redress, the Senate sided with Masinissa. In 151 BC, Carthage finally broke the treaty and raised a large army under Hasdrubal to counterattack the Numidians. The campaign collapsed in disaster; the army surrendered and many Carthaginians were massacred. Hasdrubal was condemned to death at home to placate Rome. Though Carthage had paid its indemnity and was economically prosperous, elements in the Senate had long desired its destruction. The illicit military action provided the pretext they needed. When the port city of Utica defected to Rome in 149 BC, the Senate and the centuriate assembly declared war.

How We Know – Polybius and the Historiographical Record

Our understanding of the Third Punic War rests overwhelmingly on the work of Polybius, a Greek historian born around 200 BC who arrived in Rome in 167 BC as a hostage. His masterwork, The Histories, composed sometime after 146 BC, covers virtually every aspect of the war. What makes Polybius exceptional is his method: he personally interviewed participants from both the Carthaginian and Roman sides, and he accompanied Scipio Aemilianus during the North African campaign that culminated in the storming of Carthage. His account is regarded as broadly objective and largely neutral between the two perspectives. Over the past century and a half, scholars have debated the accuracy of his narrative, but the modern consensus accepts it largely at face value. Historians such as Andrew Curry call him "fairly reliable," while Craige Champion praises him as "a remarkably well-informed, industrious, and insightful historian." Additional evidence comes from Appian's fragmentary account, the Roman annalists, Diodorus Siculus, Livy, Plutarch, Dio Cassius, as well as coins, inscriptions, archaeological remains, and empirical reconstructions like the trireme Olympias.