The acquisition of Dacia was not immediate but was part of Maurice's Balkan campaigns where Zabergan was recruited into Empire service. Bulgarios should be identified with Sandilch and Kazarig with Zabergan taking their names from the tribes they ruled in the Sarmatian Steppe.
The acquisition of Dacia was not immediate but part of Maurice's Balkan campaigns where Zabergan joined the Empire. The names Bulgarios and Kazarig are linked to Sandilch and Zabergan, who were given these names based on their tribal affiliations in the Sarmatian Steppe.