Samnite, Campanian and Lucanian warriors. In a number of hard fought battles, the Romans defeated the Latin League, taking away the sovereignty of their states, who subsequently assimilated into Latium. The consul, Lucius Furius Camillus, asked the Senate: "Do you wish to adopt ruthless measures against a people that have surrendered and been defeated? ... Or do you wish to follow the example of your ancestors and make Rome greater by conferring her citizenship on those whom she has…
Battle of Magnesia 190BCE. Fought between the Seleucid empire under Antiochus III 'The Great' against the forces of Lucius Cornelius Scipio and his brother Publius Cornelius Scipio Africanus, the victor of Zama. ~ by Dzis Igor 2005
The Battle of Chalons by Angus McBride, pits the army of Attila, which comprised of Huns, Ostrogoths & Gepids, against the forces of Theodoric and his "Roman" army of Visigoths, Franks, Alans & Burgundians. Basically two armies made up of Germanic tribes.
Armies of the Macedonian and Punic Wars. Here is a great illustration of the Italian allies that fought with and against Rome during the Punic Wars. The first is a Samnite with his easily discernible shield. The warrior at his feet is a wounded Lucanian and behind shows a Campanian cavalryman.
The attire and accoutrements of an Iron Age warrior from continental Germania 3rd - 1st c. AD Iron was 'scarce' in Germania according to Tacitus, and thus the peasant levy fought with cudgels, rocks, spears, and axes. The warrior depicted has a sword and thus would be equivalent to the knightly class that evolved later. By the time of the Frankish kingdoms (5th c. on), the Germanic regions possibly had the greatest iron/steel output in the world at that time.