Trajan led the Roman legions across the Danube, penetrating Dacia and focusing on the important area around the Orăştie Mountains.
Provinco so leta 248-250 opustošila germanska plemena (Goti, Tajfali in Bastarni), katerim so se pridružili Karpi, leta 258 in 263 Karpi in Goti, leta 267 in 269 pa Goti in Heruli.