Roman Military Personal Equipment

Roman military personal equipment was produced in large numbers to established patterns and used in an established way. These standard patterns and uses were called the res militaris or disciplina. Its regular practice during the Roman Republic and Roman Empire led to military excellence and victory. The general word for army became exercitus, "exercise." Roman equipment (especially armor) gave them "a distinct advantage over their barbarian enemies." This did not imply that every Roman soldier had better equipment than the richer men among his opponents. According to Edward Luttwak, Roman equipment was not of a better quality than that used by the majority of its adversaries.

Initially, they used weapons based on Greek and Etruscan types. On encountering the Celts, they based new varieties on Celtic equipment. To defeat the Carthaginians, they constructed an entire fleet de novo based on the Carthaginian model. Once a weapon was adopted, it became standard. The standard weapons varied somewhat during Rome's long history, but the equipment and its use were never individual.