While Marius was concluding the war with Jugurtha, a great danger threatened Italy. Since 641, an immense migration of barbarians had moved through Illyria into Cisalpine Gaul, and had defeated, at Noreia (in Carniola) the consul Papirius Carbo. They were the Cimbri, and all their peculiarities, manners, language, habits of pillage, and adventures, attested their relationship to the Gauls.[687] In their passage through Rhætia into the country of the Helvetii, they dragged with them different peoples, and during some years devastated Gaul; returned in 645 to the neighbourhood of the Roman province, they demanded of the Republic lands to settle in. The consular army sent to meet them was defeated, and they invaded the province itself. The Tigurini (647), a people of Helvetia, issuing from their mountains, slew the consul L. Cassius, and made his army pass under the yoke. It was only a prelude to greater disasters. A third invasion of the Cimbri, followed by two new defeats in 649, on the banks of the Rhine, excites the keenest apprehensions, and points to Marius as the only man capable of saving Italy; the nobles, moreover, in presence of this great danger, sought no longer to seize the power.[688] Marius was, contrary to the law, named a second time consul, in 650, and charged with the war in Gaul. This great captain laboured during several years to restore military discipline, practise his troops, and familiarise them with their new enemies, whose aspect filled them with terror. Marius, considered indispensable, was re-elected from year to year; from 650 to 654, he was five times elected consul, and beat the Cimbri, united with the Ambrones and Teutones, near Aquæ Sextiæ (_Aix_), re-passed into Italy, and exterminated, near Vercellæ, the Cimbri who had escaped from the last battle and those whom the Celtiberians had driven back from Spain. These immense butcheries, these massacres of whole peoples, removed for some time the barbarians from the frontiers of the Republic.