Between AD 14 and 16, Germanicus led Roman armies across the Rhine into Germany against the forces of Arminius and his allies. Germanicus made great use of the navy, which he needed for logistics given the lack of roads in Germany at the time. The war culminated in AD 16 with the decisive victories of Idastaviso and Angrivarian Wall in which the Germanic coalition under Arminius was destroyed. Arminius himself barely managed to survive the conflict. Rome handed annexed lands over to friendly chieftains and withdrew from most of Germany. They considered German lands too poor for annexation and the people too wild. Tacitus says the purpose of the campaigns were to avenge the defeat of Varus, not to expand Rome's borders.