The Roman Empire was invaded by two different groups, the Goths and ATTILA. The Goths were a Germanic people who first appeared in the 3rd century and eventually settled in the Roman Empire in the 4th century. ATTILA was the leader of the Huns, a nomadic people from Central Asia who invaded the Roman Empire in the 5th century. Both the Goths and ATTILA caused significant damage to the Roman Empire before they were eventually defeated.