After the Battle of Baecula and Hasdrubal Barca’s departure, further Carthaginian reinforcements were landed in Iberia in early 207 BC under Hanno, who soon joined Mago Barca. Together they were raising a powerful army by heavy recruiting of Celtiberians. Meanwhile, Hasdrubal Gisco also advanced his army from Gades into Andalusia. Thus Scipio was facing two concentrated enemy forces, one of which would no doubt fall upon his rear if he tried to attack the other.