 These legionaries were drawn from citizen stock; by this time, Roman or Latin citizenship had been regionally expanded over much of ancient Italy and Cisalpine Gaul.Lighter citizen infantry, such as the "velites" and "equites", were replaced by non-citizen auxiliaries ("auxilia") that could consist of foreign mercenaries.Due to the concentration of the citizen legions into a force of heavy infantry Rome's armies depended on auxiliary cavalry attachments for support.