Columbia subject headings:
Mercenary troops--Spain--History.
Rome--Army--Colonial forces--History.
Rome--History--Republic, 265-30 B.C.
Harvard subject headings:
Rome--Army--Spanish troops.
Rome--History, Military--265 B.C.-30 B.C.
Spain--History--Roman period, 218 B.C.-414 A.D.
Spaniards--Rome--History.
Princeton subject headings: