How did the Roman army gain so much power?
A) Traveling by the sea
B) assassinating Julius Caesar
C) fighting and conquering foreigners
D) Talking nicely to foreigners

C

Explanation:

One of thereasons Rome became thus powerful was attributable to the strength of its army. It conquered a colossal empire that stretched from United Kingdom all the thanks to the center East. the military was terribly advanced for its time. The troopers were the simplest trained, that they had the simplest weapons and therefore the best armour.

the population grew a lot and was making more money