 He launched repeated and coordinated army-navy assaults on the city, all of which failed.The arrival of a large Carthaginian and Numidian relief army under Carthaginian general Hasdrubal Gisco and Numidian king Syphax in late autumn forced Scipio to break off the siege after 40 days and retreat to the coast.After a three-day journey from Sicily, Scipio's army of 35,000 men landed near Cape Farina, sixteen miles northeast of the city of Utica, causing panic in the Carthaginian civilians in the countryside, who quickly fled into towns.