Mago Barca, Hannibal’s younger brother, was a key Carthaginian commander in the Second Punic War (218–201 BCE). He fought in Iberia under their brother Hasdrubal, helping secure Carthage’s Spanish base after Hannibal marched for Italy. In 218 BCE Mago briefly sailed to reinforce Hannibal, but most of his career unfolded in Spain, where Carthage depended on Iberian allies, silver revenues, and veteran officers to keep Rome from cutting the war off at its roots. After Hasdrubal Barca departed Spai