Legio (Roman Legion)

A Roman legio, or legion, was a large military unit in ancient Rome, typically consisting of about 4,500 to 6,000 soldiers. It was the core of the Roman army, structured into smaller groups called centuries and cohorts, allowing for flexible and organized combat. Legions were trained for discipline, engineering, and combat, playing a vital role in expanding and defending the Roman Empire. Each legion had its own command, standard, and unique identity. Their effective organization, innovation, and discipline made Roman legions some of the most formidable and enduring military units in history.