Military · Roman Empire Daily
A Roman legion was roughly 5,000 men, organized into cohorts and centuries led by centurions.
Deep dive
The legion's strength came from its structure: small units that could maneuver independently, with experienced centurions holding the line. This flexibility helped Rome win against larger but less organized forces.
Source: Polybius, 'Histories,' 6.19–26; Vegetius, 'De Re Militari,' 2.
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