W031 The Cimbrian and Teutonic wars

Roman armies suffered a sequence of defeats, most famously at Arausio in 105 BC. The crisis was not one uninterrupted march by a single people along a known line. Groups called Cimbri, Teutones and associated names moved, separated and recombined within a broader and imperfectly recorded setting.

Marius' forces defeated the Teutones near Aquae Sextiae in 102 BC. In 101, Marius and Catulus defeated the Cimbri in the encounter conventionally associated with Vercellae and the Raudian Plain. Preparation, command relations and the choice of ground belong beside the reputation of the victorious general.

Command, forces and military problem

Extended campaign study

The account below develops the operations and their interpretation. Reported numbers and reconstructed tactical details retain the uncertainties described in the dossier.

Arausio

While the African war was consuming Roman political attention, a demographic event of an entirely different order was in motion beyond the Alps. The Cimbri and the Teutones — Germanic peoples from the Jutland peninsula, migrating southward with their families, wagons, and herds in a moving nation that the ancient sources number, with whatever exaggeration, in the many hundreds of thousands — had entered the middle Danube lands in the 110s and collided with the Roman sphere for the first time in 113 BC, when the consul Gnaeus Papirius Carbo attempted to ambush them in the eastern Alps near Noreia and was routed for his treachery, his army saved from annihilation only by a thunderstorm that broke off the pursuit. The wanderers turned west rather than south, spent years traversing Gaul, and reappeared on the Rhône in 109, requesting land for settlement from the Roman province and defeating the consul Marcus Junius Silanus when it was refused. In 107 the Tigurini — a Helvetian people drawn into the migration's wake — destroyed the army of the consul Lucius Cassius Longinus near the Garonne, killed the consul, and sent the survivors under the yoke. And in October of 105, at Arausio on the lower Rhône, the compounding negligence of a decade reached its arithmetic conclusion.

Two full Roman armies stood on the Rhône that autumn — the consular army of Gnaeus Mallius Maximus, a novus homo, and the proconsular army of Quintus Servilius Caepio, an aristocrat of the bluest descent who had the previous year, in a transaction that became proverbial, appropriated the enormous sacred treasure of Tolosa (the "gold of Tolosa," which vanished en route to Massilia under an escort that was itself massacred; the phrase became a Latin byword for cursed wealth). Caepio would neither combine camps with the new man nor coordinate with him; when Mallius opened negotiations with the approaching Cimbri, Caepio, fearing a settlement that would rob him of a triumph, attacked alone rather than share one. His army was destroyed against the river; the Cimbri then stormed Mallius's camp and destroyed the second army against the same river; and the Roman dead of the sixth of October — the sources' figure is eighty thousand soldiers with the servants and camp-followers besides, and even the most severe modern discounting leaves Arausio the bloodiest Roman day since Cannae — were not ransomed or enslaved, for the victors, in fulfillment of a vow, sacrificed everything: the prisoners hanged, the horses drowned, the gold and silver cut to pieces and thrown into the Rhône, the armor rent. Italy lay open, defended by nothing; and the fact that the Cimbri then turned aside into Spain for three years, for their own inscrutable reasons, was understood by the Romans themselves as an unearned reprieve granted by fortune to a state that had deserved destruction.

The political consequences were immediate and structural. Caepio was stripped of his proconsulate and eventually of his citizenship, prosecuted, and exiled — the gold of Tolosa unrecovered and his name accursed; the assembly carried a law barring iteration of commands by the incapable nobility; and Marius, still in Africa with the only victorious army Rome possessed, was elected consul for 104 in absentia and then — against every constitutional convention of the annual magistracy — re-elected continuously for 103, 102, 101, and 100: five successive consulships, an accumulation without precedent in the Republic's history, granted by a citizenry that had concluded, correctly, that the constitution's rotational principle was a luxury the emergency could not afford. The novus homo of Arpinum spent the reprieve rebuilding the northern armies around the professional model forged in Africa: the capite censi cohorts, the standardized equipment, the eagle standards, the mules of Marius — and the training regime, borrowed from the gladiatorial schools through his colleague Rutilius Rufus, that made the new legions the most drilled soldiery Rome had ever fielded. He also, in the waiting years, cut the canal — the fossae Marianae — through the silting mouths of the Rhône to secure his supply line from the sea, a piece of engineering patience that tells more about the man than his enemies' portrait of the rustic demagogue would suggest.

Aquae Sextiae and Vercellae (102–101 BC)

The migrating nations returned from Spain in 103, reunited in Gaul, and resolved — with the fatal deliberateness of a people who did not understand what had been rebuilt to meet them — on a converging invasion of Italy for 102: the Teutones and Ambrones to advance along the Mediterranean coast into Liguria, the Cimbri to cross the eastern Alps by the Brenner, the Tigurini to demonstrate through the Julian passes.

The division was the Romans' salvation, for it allowed the two consular armies to meet the columns in sequence. Marius, waiting behind entrenchments at the junction of the Isère and the Rhône, let the Teutonic host flow past his camp — six days, the tradition says, the wagons took to pass, the warriors shouting up at the palisades asking whether the Romans had messages for their wives — and then followed, choosing his ground at Aquae Sextiae (Aix-en-Provence) in the dry hills where Sextius had planted the province's first colony. The battle was opened by accident — a brawl of water-carriers at the stream between the camps drew in the Ambrones, who were cut to pieces crossing the water — and consummated two days later by design: Marius drew the Teutonic mass uphill against his legions posted on the slope, the disciplined line holding and then pressing the enemy back down onto the plain, where the ambush he had laid the night before — three thousand men under Claudius Marcellus, circling through the woods to the enemy rear — struck the reversing mass from behind at the moment of maximum compression. The Teutones and Ambrones ceased to exist as peoples: the sources speak of one hundred thousand killed or taken, of the fields of Massilia fenced with bones, of vineyards fattened for a generation on the dead; King Teutobod was taken in the pursuit. Marius was burning the trophy-pyre of captured arms when the riders reached him with his fifth consulship — and with the news that the other jaw of the invasion had broken through.

The Cimbri had crossed the Brenner in the same season, brushing aside the army of the proconsul Quintus Lutatius Catulus, which had attempted to hold the Adige gorges and had been saved from disintegration only by the self-possession of its military tribunes — among them Sulla, transferred from Marius's staff to Catulus's in the deepening chill between the two men. Northern Italy east of the Po wintered under the Cimbri, who — the detail is Plutarch's, and it fixed itself in the Roman imagination — slid the Alpine snowfields naked on their shields for sport. In the summer of 101 Marius brought the army of Gaul over to join Catulus, and the combined force of some fifty-two thousand met the entire Cimbric nation on the plain called the Raudine Field near Vercellae, west of Milan, on the thirtieth of July. The battle was fought in heat and blinding dust — conditions the Romans, trained in the African and Provençal sun, endured and the northern warriors could not; the Cimbric infantry, chained together in its front ranks by the sources' account, was enveloped and destroyed against its own wagon-laager, where the final horror was enacted by the Cimbric women, who killed their children and themselves rather than accept slavery, and whose defense of the wagons the sources describe with an awe that has nothing conventional in it. King Boiorix died fighting; the numbers given are one hundred twenty thousand dead and sixty thousand taken; the Tigurini, hearing, melted back through the passes; and the migration that had destroyed five consular armies in twelve years was gone from history. Marius was hailed by the acclamation of the whole state as the third founder of Rome, after Romulus and Camillus; his colleague Catulus, whose army claimed with some justice the decisive envelopment at Vercellae and whose memoir pressed the claim, was granted a share in a joint triumph and nursed the grievance; and Sulla, who had served Catulus through the campaign, filed the whole accounting away.

Outcome and critical assessment

Result and caution: the immediate invasion crisis ended. Ancient troop and casualty totals are not dependable measurements. The exact Raudian battlefield remains debated; the mapped city of Vercellae is only an orientation point. Ethnic labels in the literary tradition do not justify drawing fixed modern national identities onto the combatants.

Historical record: IR-V, chapter 3; Plutarch, Marius; campaign tables.