The Roman Legions In 390 BC the Celtics defeated Rome. The legions formed a group so they could protect Rome. There were no girls allowed and the men could only be 25-50 years old. Also the men had to be fit and healthy. The Roman Legions wore a helmet made of leather and iron-headed javelin (when they a javelin it bent so then the enemy could not throw it back.)They also had woollen leggings, a knife on their belt, metal plates, and a long wooden and metal shield, metal leg-protector known as greave and leather sandals. Roman legionnaires in their spare time built bridges and walls. The roman legions set up was… Enemy Young sold Veteron Most expenenced. That’s the roman legions! By Jessie