Most of europe are considered what type of government?

Unitary - this is where all power is in the hands of a central government - city and state governments do not have power. Hope this Helps!!

Explanation:

the roman republic began to expand when rome fought the punic wars and defeated carthage. the punic wars refer to the series of 3 wars fought among rome and carthage, before it ended in carthage's defeat.

separation of church and state? not sure what you mean.