Roman Fleet
The Roman Navy was always considered an inferior arm and was strictly under army control.
But already during the First Punic War, Rome proved itself capable of launching a fleet capable of checking an established naval power such as Carthage. Romans were no sailors though. They had no knowledge of ship building. Their ships were in fact built copying the example of captured Carthaginian vessels, combined with the expertise supplied by the Greek cities of southern Italy.
Rather unexpected success in battle was obtained by a logical Roman idea that a warship was little more than a floating platform on which the soldiers could be brought into close contact with the enemy.
Read More about Roman Fleet