The term 'Foes of the Romans' refers to two different groups of people who were enemies of the Roman Empire: the CELTS and the Goths. The CELTS were a group of Indo-European peoples who lived in Iron Age Europe and were known for their advanced culture and art. The Goths were a Germanic people who migrated into the Roman Empire in the 3rd century and eventually sacked Rome in 410 AD. Both the CELTS and the Goths were formidable foes of the Romans and posed a significant threat to the Roman Empire.