 Publius Scipio led Roman and allied soldiers to attack Mago Barca near Castulo, while Gnaeus Scipio took one-third of the Roman army in Spain and the mercenaries to attack Hasdrubal Barca.This stratagem would lead to two battles, the Battle of Castulo and the Battle of Ilorca, which took place within a few days of each other.Gnaeus Scipio arrived at his objective first.