Final answer:
The small groups of Roman soldiers were organized into legions, each consisting of around five thousand soldiers. Within a legion, there were smaller subdivisions called cohorts, which were led by centurions. The soldiers in each cohort lived, worked, trained, and fought together.
Step-by-step explanation:
The small groups of Roman soldiers were organized into legions, which were the basic units of the Roman army. Each legion consisted of around five thousand soldiers and was commanded by a legate. Within a legion, there were smaller subdivisions called cohorts, led by centurions. Each cohort was further divided into centuries, which were groups of around 80 soldiers.
The soldiers in a century lived, worked, trained, and fought together. They were highly disciplined and trained in combat drills to constantly be ready for battle. The legions were self-sufficient and could operate within hostile territory for long periods.
One exception to the organization of legions was the Praetorian Guard, which were elite soldiers responsible for protecting the emperor, Italy, and Rome. They were recruited from veteran legionaries and served a shorter term with higher pay.
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