Who were the main opponents in the punic wars?

The Punic War occurred during 264 BC to 146 BC. This war consisted of three sets of war. The main opponents within the Punic Wars were Carthage and Rome. All the three wars that had been fought within the Punic Wars were won by Rome. This resulted in the rise in the Roman Empires.

mass production/ assembly line production

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.