The Samnites were a people living in the center of Italy at the age of the Roman Republic, and were one of its most famous opponents.
Romans and Samnites fought each other during the three Samnites Wars which occured in the 4th-3rd centuries BC. The Samnites were eventually defeated and were compelled to become allies to Rome. Rome just became powerful enough to stand against Pyrrhus and thereafter Carthage.
I used the Italian Allies box by Hät to represent the Samnites.
The warrior on the left has colorful clothes and shield, and wears a bronze armor.
The other warriors are dressed in white, with silver armor. They are noble members of a particular unit called Legio Linteata.
In the last photo, I show the Samnites together with Italian troops in Roman service (more concerning these troops here). They certainly fought each other during the Samnites wars, before the became forced allies.
I hope you like them :)