hiː wʌz ɐsˈaɪnd tə ɡˈɔːl tʊ əpˈoʊz ðə maɪɡɹˈeɪʃən əvə kənfˌɛdɚɹˈeɪʃən ʌv dʒɜːmˈænɪk tɹˈaɪbz mˈeɪnli sˈɪmbɹi ænd tjˈuːtoʊnz.
He was assigned to Gaul to oppose the migration of a confederation of Germanic tribes (mainly Cimbri and Teutones).