Were there any religious reasons for caesars invasion of gaul? or the punic wars?

In 264 B.C.E., a crisis in Sicily provided the Romans with a pretext for intervention. In violation of an agreement, Rome sent a detachment of troops, sparking what is called the First Punic War. This conflict, characterized by some of the largest naval battles of antiquity, dragged on for more than 20 years. Finally, in 241 B.C.E., the Carthaginians were defeated and forced to abandon Sicily. Rome also snatched Corsica and Sardinia from their grasp.
Carthage met a seemingly irrevocable end. Still, just a century later Julius Caesar decided to establish a colony there. In his honor it was called Colonia Julia Carthago.
It seems they were motivated by commercial and political considerations.

Rome tolerated almost any sort of religious practice, as long as those who held to it would also share in worship of the emperor. Such emperor worship was viewed as an important factor in uniting the empire. So any who refused to share in it were considered to be enemies of the state.

Christianity came to Carthage about the middle of the second century C.E. and experienced rapid growth there.

As the Roman Empire waned, so did Carthage. In 439 C.E., the city was captured and plundered by the Vandals.

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