Question: The raid of the Po Valley in 203 BC was the culmination of a major war, carried out by the Carthaginian commander Mago, son of Hamilcar Barca, at the end of the Second Punic war between Rome and which location, that was a Phoenician city-state, during the 7th to 3rd centuries BC?

Carthage (Punic: 𐤒𐤓𐤕•𐤇𐤃𐤔𐤕 , "Qart-ḥadašt " "new city") was the <a href="Phoenicia">Phoenicia</a>n <a href="city-state">city-state</a> of <a href="Carthage">Carthage</a> and during the 7th to 3rd centuries BC, included its sphere of influence, the Carthaginian Empire.  The empire extended over much of the coast of North Africa as well as encompassing substantial parts of coastal Iberia and the islands of the western Mediterranean Sea. <SEP>  Mago had landed at Genoa, Liguria, two years before, in an effort to keep the Romans busy to the North and thus hamper indirectly their plans to invade Carthage’s hinterland in Africa (modern Tunisia).  He was quite successful in reigniting the unrest among various peoples (Ligurians, Gauls, Etruscans) against the Roman dominance.  Rome was forced to concentrate large forces against him which finally resulted in a battle fought in the land of the Insubres (Lombardy).  Mago suffered defeat and had to retreat. The raid of the Po Valley in 203 BC was the culmination of a major war, carried out by the Carthaginian commander Mago, son of Hamilcar Barca, at the end of the Second Punic war between Rome and Carthage in what is now northwestern Italy.  The strategy to divert the enemy’s forces failed as the Roman general Publius Cornelius Scipio laid waste to Africa and wiped out the Carthaginian armies that were sent to destroy the invader.  To counter Scipio the Carthaginian government recalled Mago from Italy (along with his brother Hannibal, who had been in Bruttium until then).  However, the remnants of the Carthaginian forces in Cisalpine Gaul continued to harass the Romans for several years after the end of the war. <SEP> Mago, son of Hamilcar Barca, also spelled Magon, Phoenician MGN, "God sent" (243 BC – 203 BC), was a member of the Barcid family, and played an important role in the Second Punic War, leading forces of Carthage against the Roman Republic in Hispania, Gallia Cisalpina and Italy.  Mago was the third son of Hamilcar Barca, brother to Hannibal and Hasdrubal, and brother-in-law to Hasdrubal the Fair. <SEP> The Battle of Bagradas River or "Battle on the Macar" (c. 240 BC) was fought between Carthaginian forces and part of the combined forces of Carthage's former mercenary armies during the Mercenary War which it used to conduct the First Punic War and those of rebelling Libyan cities.  After the forces of Hanno the Great were defeated at Utica, and failed to engage the mercenaries afterwards despite favorable conditions, Carthage raised a new army under Hamilcar Barca in Carthage.  Hamilcar managed to leave Carthage despite the rebel blockade of the city and cross the Bagradas river.  Rebel armies from besieging Utica and the camp guarded the bridge on the Bargradas river.  Hamilcar Barca, by brilliant maneuvering, defeated the combined rebel army.  This was the first major Carthaginian victory of the war.  A description of the battle forms one of the grandiose set-piece scenes of Gustave Flaubert's novel, Salammbo.