<em>Hello, Your answer will be </em><em>"Germanic" tribes invading from the north is one of the main reason for Rome’s fall.</em>
Explanation:
Many of the groups that attacked and invaded the Roman Empire were Germanic tribes from Northern Europe. Goths One of the most powerful and organized groups of barbarians were the Goths. The Goths were divided into two major branches: the Visigoths and the Ostrogoths. <em>Hope That Helps!</em>