Islam’s historical role in central asia

Which of the following statements describes how the punic wars contributed to the development of the roman empire? (5 points) they allowed the romans to focus more on expanding into the western mediterranean. they resulted in the overthrow of the roman republic and establishment of the empire. they marked the end of roman expansion in the mediterranean region. they forced the romans to reorganize their government with an emperor as ruler.

Ineed asap! ! what is the name of the system in which each branch of the u.s government can limit the actions of the other branches? a. perpetual union b. division of powers c. cooperative federalism d. checks and balances

In which era does vietnam war fought and what was the reason?