Answer:
The Romans won the first punic war by defeating the Carthaginian navy. The second punic war was when Hannibal invaded Italy. ... Then Scipio Africanus took the war from Italy to Carthage and New Carthage (Spain) and defeated the Carthaginians in their own lands. The key factor the Romans had over Carthage was resources.
Step-by-step explanation:
The Carthaginian navy had long been able to enforce the treaty which kept Rome from trading in the western Mediterranean. ... After an initial struggle with military tactics, Rome won a series of victories and finally defeated Carthage in 241 BCE. Carthage was forced to cede Sicily to Rome and pay a heavy war indemnity.