When was Roman army at the height of its power?

[Flavivs Aetivs]

Diocle you and I both know the concept of "Barbarization" is completely false and has been thoroughly disproven since the 60's. The Barbarians were Romanized, the Romans were not Barbarized. The Success of the late army relied on these "barbarians" who were actually Roman citizens, and the Romans mixed Barbarians into regular units and placed them under Roman command to disperse and control them.

The Romans broke up the Legions because the scale of warfare was smaller. The Romans weren't usually facing armies of 10000 or 20000 men. Most of what they fought were warbands of 200-1000men, meaning that it was more effective to have a distributed force of a Legion in 1000 man units. Many Legions continued to total about 5000 men, but were in several places (good examples being V Macedonica and XI Claudia).

The text cannot be taken literally, these authors were alluding to "The good old days" just like authors of every century since Classical Greece.

The Germanic tribes could not field forces of 10000 men. The Visigothic Kingdom of Spain in the 460's could only field a maximum of 25,000 men, the Huns themselves only 30,000 (and never coallesced into that high a number except under Ruga-Attila), and only in confederated empires could they field more, the Hun empire had a MAXIMUM of 70,000 men from all across Germanic Europe in 451.