Answer:
There were sea routes that covered the Mediterranean and Black Seas and numerous land routes using the roads built by the Romans. Trade and moving the Roman Army around were the two principle reasons for building roads. The most important port was Ostia as it was the nearest major port to Rome itself.
Some volunteer others got drafted if you were 18 and met physical conditions you were required to go to war it angered many Americans because they were against the war and because 18 year old boys were being taken to fight
C. Christian emperors from Rome conquered these regions.
<span>"After a period of conflict, Christianity was made the official religion of the Roman Empire so as to unite and reinforce it. Both state and church each had their own, sometimes overlapping, spheres of influence over people, one temporal and the other spiritual." (I really hope this helps good luck.)</span>