Pyrrhic War

The Pyrrhic War (/ˈpɪrɪk/ PIRR-ik; 281–275 BC) was a conflict fought by Pyrrhus of Epirus and his allies against the Roman Republic, supported by its allies, and Carthage. Fought mainly in Magna Graecia and Sicily, Pyrrhus first intervened at the invitation of the Italiote Greeks against Roman expansion. However, his aims in the war became oriented towards establishing hegemony over southern Italy and Sicily. Initially meeting some success, his aims were left unfulfilled after his campaign in Sicily stalemated against Carthaginian resistance and Rome forced his withdrawal from Italy in 275 BC. The first major conflict involving Rome and one of the Hellenistic powers, Rome's victory showed its emergence as a major Mediterranean power.

Prior to the war, the Romans had expanded for some decades into southern Italy, defeating most notably the Samnites. They also started to conclude alliances with the Greek city-states of Magna Graecia. The outbreak of a new conflict between one of those allies, Thurii, and a Samnite-led alliance led to Roman intervention. The Tarentines, seeking to prevent continued Roman intervention in southern Italy, attacked a Roman fleet sailing in their waters contrary to a previous treaty and marched on Thurii, deposing the pro-Roman government there. After rejection of a Roman ultimatum in early 281 BC, war was declared. Cognisant of their weakness in the field, the Tarentines sought foreign support in the form of Pyrrhus of Epirus, who landed at Tarentum with reinforcements in the winter of 281/80 BC.

Pyrrhus advanced north, defeating the Romans at Heraclea in Lucania and causing some Roman allies to defect. He advanced quickly into Latium with interest in supporting the Etruscans against Rome. However, after the Romans concluded victory in Etruria, Pyrrhus withdrew from Latium for winter quarters. Over the winter, the Romans refused negotiations for a peace and reengaged Pyrrhus at Asculum in 279 BC, where the Romans were again defeated. In the aftermath of Pyrrhus' victory, however, he is said to have exclaimed "Another such victory and we are lost!" due to the losses incurred, giving rise to the modern phrase "Pyrrhic victory". With the Romans displaced from southern Italy, Pyrrhus moved into Sicily to intervene in favour of Syracuse against Carthage.

Successful on much of the island, Pyrrhus was however unable to take the Carthaginian stronghold of Lilybaeum due to weakness at sea. With renewed Roman aggression in southern Italy between 279 and 276 BC and dwindling support among the Sicilians due to the costs of the war, Pyrrhus heeded a renewed Tarentine call for aid and returned to southern Italy with some losses in early 276. In 275 BC he engaged the Romans again at Beneventum, where he was defeated or stalemated, forcing him on the defensive. With the campaign unwinnable, Pyrrhus withdrew to Epirus in the winter of 275/74, leaving a small garrison at Tarentum. While Pyrrhus' intervention had revitalised the cause of the Samnites, Lucanians, Bruttians, and Italian Greeks against Rome, the gains were short-lived. In 272, some two years after Pyrrhus' withdrawal, Tarentum fell to the Romans with the Epirote garrison given free passage home. That year Pyrrhus, campaigning in a different war in the Peloponnese, also met his end at Argos. Roman prestige on the pan-Mediterranean stage was greatly enhanced and its status as the dominant power on peninsular Italy would only again be challenged at the end of the century during the Hannibalic War.