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In page Lusitanians:

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Lusitanian mercenaries fought for Carthage between the years 218 and 201 BC, during the Second Punic War against Rome. Silius Italicus describes them as forming a combined contingent with the Gallaeci and being led both by a commander named Viriathus (not to be confused with the similarly named chieftain).[1] According to Livy, Lusitanian and Celtiberian cavalry performed raids in the north of Italy whenever the terrain was too rough for Hannibal's famed Numidian cavalry.[2]