I would say the Romans because they had better technology.
In which battle did the romans defeat the huns in 451?
The Romans
They fought fearsomely.
The Romans were not conquered by the Huns. The Huns settled north of the river Danube, part of the border of the Roman Empire. They carried out many raids south of that river, but did not make any conquests there. They tried to invade Gaul, but they were defeated and repelled by a combined army of Romans, Franks, and Visigoths. Soon after this, the Hun empire disintegrated.
Some Romans welcomed the Huns' conquest as it disrupted the power of the Eastern Roman Empire and weakened their oppressive rule. Additionally, the Huns' invasions led to the displacement of other tribes, which sometimes resulted in temporary relief from local conflicts and taxes. For some, the promise of new opportunities and the prospect of a different governance under the Huns seemed preferable to the Roman status quo.
They weren’t happy about it and did everything they could to stop it.
The Romans were not conquered by the Huns. The Huns settled north of the river Danube, part of the border of the Roman empire. They carried out many raids south of that river, but did not make any conquests there. They tried to invade Gaul, but they were defeated and repelled by a combined army of Romans, Franks, and Visigoths. Soon after this, the Hun empire disintegrated.
Simon MacDowall has written: 'Adrianopole AD 378' 'Romans, Goths, and Huns'
The Huns invaded central and eastern Europe north of the river Danube They did not invade the empire. The carried out devastating raids in the Balkans. Later they tried to invade Gaul, but were defeated. The Huns caused population pressure on the land in the area they expanded into to increase. This led to the invasion of Gaul by the Vandals, Alans, Sueves and Burgundians . The Alemanni of southern Germany took advantage of this to invade northeast France and Switzerland. The Romans' inability to deal with the invasions showed fading power This was made worse by infighting between the Romans and their political instability.
The Franks were allies of the Romans. They helped them to repel Attila of the Huns' attempt to invade Gaul. They took over the Domain of Soissons, a Roman rump state in central Gaul after the western part of the Roman Empire was already a dead letter.
It is difficult to determine who would win in a battle between the Mongols and the Huns as both groups were skilled warriors with different tactics and strengths. The outcome would likely depend on various factors such as leadership, strategy, and battlefield conditions.
Carthaginians, Gauls, Macedonians, Pontics, Parthians; <--BCEish Goths, Vandals, Huns, Franks, Saxons <--CEish And other Romans, like Julius Caesar.