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, distinguishing himself several times. A new Roman commander took over in 148 BC, and fared equally badly. At the annual election of Roman magistrates in early 147 BC, the 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 via blockade runners. The Carthaginians had partially rebuilt their fleet and it sortied, to the Romans' surprise; 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 prisoners – 50,000, who were sold into slavery.

Reader's Guide

The siege of Carthage was the decisive event of the Third Punic War, ending Carthaginian independence and leading to the creation of the Roman province of Africa, with Utica as its capital. The main source for the war is the historian Polybius, a Greek who accompanied Scipio Aemilianus during the campaign. Polybius's account is considered broadly objective and largely neutral; modern historians generally accept it at face value. Other ancient sources include Appian, Livy, Plutarch, and Dio Cassius. The siege demonstrated Roman determination to eliminate a long-time rival, despite Carthage having been disarmed and offering no military threat. The city's destruction was so thorough that it was a century before the site was rebuilt as a Roman city. The siege also highlighted the role of Scipio Aemilianus, whose leadership proved crucial after earlier Roman commanders failed.

Did You Know?

• The Carthaginians surrendered 200,000 sets of armour and 2,000 catapults before the siege began.
• Scipio Aemilianus was appointed commander in Africa in early 147 BC after public support lifted usual age restrictions.
• Only on the last day of the final assault did the Romans take prisoners—50,000, who were sold into slavery.
• The site of Carthage was not rebuilt as a Roman city for a century after its destruction.

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.