The Roman military was a dominant force in the ancient world, thanks to their complex and intricate military system. This system focused on the recruitment and training of soldiers to create an ideal legionary. The Early Roman Empire saw the peak of military dominance and many, such as Vegetius, argue that the deterioration of the empire was due to straying from this strict recruitment and training system.
The Romans preferred recruits from certain areas and nations based on climate and culture. They generally preferred men from the countryside as they were more accustomed to the struggles of life, knew how to use tools, and were more resilient to hunger. City dwellers were also recruited but had to undergo a different, more rigorous training program.
Desirable traits for recruits included physical fitness, good eyesight, wide shoulders, a small waist, and a minimum height of 5.7 Roman feet for infantry. Other traits, such as lively eyes, good manners, a reputable family, sense of humor, and literacy, were also considered.
Once chosen, recruits began a four-month trial period. They were not taken into battle until they completed this trial. Training focused on several key areas:
Roman recruits underwent extensive training to become effective legionaries. Many did not make it past the initial four-month trial, but those who did would swear a military oath, receive a brand on their hand, and become legionaries. They would continue to train throughout their 20-year service, refining their skills and becoming the ideal Roman soldiers who brought the empire to its peak of military dominance.