Some book i read said Rome became powerful because Rome made other countries they conquered part of Romans if that make sense (Not very good at English sorry)
Athens and Spartans only gave their citizen ship to true Athenians and Spartans. But Romans gave their citizenship to everybody. So all the Roman allied state were soo close together and rarely betrayed the Romans.
Also Roman military were great because they adapted any tactic they thought its useful (Pilas from Samnite, Celtic formation, Gladius sword from spain) Also Scipio Africanus adapted Hannibals tactic which was also great fighting falanx baced Easterns and fanatic barbarians. Also Rome had one of the greatest infantry (especially after Marian reform) and had access to greatest cavarly after Punic war (Numidian cavarly and Gallic mercenaries)
Their republican system worked well in the first half and some of the emperors was great.
If that helps.. I got a crappy grammer i know.
Bookmarks