What innovation did Julius Caesar bring to Rome's generations-long civil wars?
Caesar was the first general to recruit and equip poor citizens and also the first to reward his veterans with land.
Caesar ended the practice of ambitious generals starting wars and expanding the empire.
Caesar was the first to make lists of his opponents who he would put to death.
Caesar offered mercy to his defeated opponents and to any who did not actively oppose him.
The best option from the list would be that "Caesar ended the practice of ambitious generals starting wars and expanding the empire," since Caesar assumed ultimate and "tight" control over the entire military establishment.
