In this instance Rome, while vindicating her own rights vindicated the general cause of the Hellenes against the barbarians.
Hiero, the new ruler of Syracuse, accordingly supported the Romans before Rhegium by sending supplies and a contingent, and in combination with the Roman expedition against the garrison of Rhegium he made an attack upon their fellow-countrymen and fellow-criminals, the Mamertines of Messana.

The siege of the latter town was long protracted.

On the other hand Rhegium, although the mutineers resisted long and obstinately, was stormed by the Romans in 484; the survivors of the garrison were scourged and beheaded in the public market at Rome, while the old inhabitants were recalled and, as far as possible, reinstated in their possessions.

Thus all Italy was, in 484, reduced to subjection.

The Samnites alone, the most obstinate antagonists of Rome, still in spite of the official conclusion of peace continued the struggle as "robbers," so that in 485 both consuls had to be once more despatched against them.