"Theodosius I (Greek: Θεοδόσιος Αʹ, Theodósios I; 11 January 347 – 17 January 395), also called Theodosius the Great, was Roman emperor from 379 to 395. On ...
accepting his elevation, he campaigned against Goths and other barbarians who had invaded the Empire. His resources were not sufficient to destroy them or drive them out, which had been Roman policy for centuries in dealing with invaders. By treaty, which followed his indecisive victory at the end of the Gothic War, they were established as foederati, autonomous allies of the Empire, south of the Danube, in Illyricum, within the Empire´s borders. They were given lands and allowed to remain under their own leaders, not assimilated as had been normal Roman practice. Theodosius I was obliged to fight two destructive civil wars, successively defeating the usurpers Magnus Maximus in 387–388 and Eugenius in 394, at great cost to the power of the Empire." - (en.wikipedia.org 18.10.2020)
