Octavian, Augustus, and the Fall of the Republic. 218 – 202: The Second Punic War. Hannibal is defeated at Zama by Scipio Africanus. Rome becomes ruler of the Mediterranean (Mare Nostrum). The army is needed to protect the new empire of Rome. Enlistment is for six years.
Because of the length of enlistment, many soldiers lose their family farms, and go to Rome, becoming part of the Head Count (capiti censi)
Rise of the Street Gangs
The Senate later brands the conspirators as enemies of the state, and commissions Marcus Antonius and Gaius Julius Caesar Octavianus to hunt them down;
“After that time I excelled all others in dignity, but of power I held no more than those who were my colleagues in any magistracy.”