صدربعل جيسكو
Opposing him were the three Carthaginian generals (Hasdrubal Barca, Mago Barca and Hasdrubal Gisco), who were on bad terms with each other, geographically scattered (Hasdrubal Barca in central Spain, Mago near Gibraltar and Hasdrubal near the mouth of the Tagus river), and at least 10 days away from New Carthage. The Roman campaign was conducted in winter to capture new Carthage using the element of surprise.