This could be explained by Orosius who recounts in 402 "I say nothing of the many internecine conflicts between the barbarians themselves, when two cunei of the Goths, and then the Alans and Huns, destroyed one another in mutual slaughter".
According to Orosius in 402, it can be argued that this was due to the frequent clashes between rival barbarian groups, such as two Gothic contingents and later the Alans and Huns, who engaged in a vicious cycle of bloodshed.