Roman Dacia
In AD 268–269, at Naissus, Claudius II (Gothicus Maximus) obtained a decisive victory over the Goths. Since at that time Romans were still occupying Roman Dacia it is assumed that the Goths didn't cross the Danube from the Roman province. The Goths who survived their defeat didn't even attempt to escape through Dacia, but through Thrace. At the boundaries of Roman Dacia, Carpi (Free Dacians) were still strong enough to sustain five battles in eight years against the Romans from AD 301–308. Roman Dacia was left in AD 275 by the Romans, to the Carpi again, and not to the Goths. There were still Dacians in AD 336, against whom Constantine the Great fought.