The Romans, aside from committing atrocities during the war, split up Illyrian tribes into different groups than the ones they had previously composed.

The administrative civitates of Osseriates, Colapiani and Varciani are probably created from the Breuci.

Other members of tribes are probably sold as slaves or deported to different locations.

Pannonia is incorporated with Illyria, the frontier of which is thus extended as far as the Danube.

The proximity of dangerous barbarian tribes (Quadi, Marcomanni) necessitates the presence of a large number of troops (seven legions in later times), and numerous fortresses are built on the bank of the Danube.

...Siscia, the ancient fortresses that had been restored by Gallienus; many cities are burned.