Roman defensive tactics were far superior. Their shields were far more protective.From behind their sheild walls they would stab their foe machine like,without breaking ranks. Hannibal knew the tactic and double envoleped them at cannae. Attack their rear,where their shields were no longer effective .The elephants crashed into their shield wall,they could no longer communicate,and suffered their greatest defeat. But addapt they did opening their wall at Zama allowing the elephants in to be stabbed from Benith. Excellently trained in the tactic by Scipio. They are the greatest tacticians of the ancient world,using a trapping game.Give them credit for the maneuver. For 2000 years you could win battles,but you would loose the war.Cesare built a bridge accords the rhine river in days,an engineering marvel,just to let the Germans see the power of Rome,they were astonished. Our society is foundation is the will and skill of the power of Rome.