Res Gestae

But, although he was so diligently engaged in reforming civil abuses, he did not on that account neglect military affairs, but put in command of the soldiers men approved by long trial; nay more, he repaired all the cities throughout Thrace as well as the fortifications on the borders, and took particular pains that the troops posted along the banks of the Danube, who, as he heard, were meeting inroads of the savages with watchfulness and valour, should lack neither arms and clothing nor pay and supplies.