ɡˈælbə sˈɜːvd æz tɹˈɪbjuːn ʌvðə sˈoʊldʒɚz fɔːɹ pˈɑːɹt ʌvðə sˈɛkənd lˈiːdʒən ɪn mˌæsɪdˈoʊniə, ˌʌndɚ lˈuːʃəs iːmˈɪlɪəs pˈɔːləs mˌæsɪdˈɑːnɪkəs.
Galba served as tribune of the soldiers for part of the second legion in Macedonia, under Lucius Aemilius Paullus Macedonicus.