XVI. The tribunitian authority was again conferred upon him for five years 318, and a commission given him to settle the affairs of Germany. The ambassadors of the Parthians, after having had an audience of Augustus, were ordered to apply to him likewise in his province. But on receiving intelligence of an insurrection in Illyricum 319, he went over to superintend the management of that new war, which proved the most serious of all the foreign wars since the Carthaginian.
This he conducted during three years, with fifteen legions and an equal number of auxiliary forces, under great difficulties, and an extreme scarcity of corn. And though he was several times recalled, he nevertheless persisted; fearing lest an enemy so powerful, and so near, should fall upon the army in their retreat.
This resolution was attended with good success; for he at last reduced to complete subjection all Illyricum, lying between Italy and the kingdom of Noricum, Thrace, Macedonia, the river Danube, and the Adriatic gulf.
XVII. The glory he acquired by these successes received an