thumb|left|340px|In AD 1 Augustus sent his stepson Tiberius to subdue the Germanic tribes on the Rhine frontier. In his campaigns, Tiberius eventually extended the Roman border as far as the Elbe but was forced to cancel plans to conquer the Suevic Marcomanni when revolt broke out in Illyria in AD 6.
thumb|left|340px|In AD 1 Augustus sent his stepson Tiberius to subdue the Germanic tribes .on the Rhine frontier In his campaigns, Tiberius eventually extended the Roman border as far as the Elbe but was forced to cancel plans to conquer the Suevic Marcomanni when r.evolt broke out in Illyria in AD 6