Angrivarii
The wars began in the last years of the reign of Augustus, first emperor of Rome. Augustus died an old but respected man in the year 14 and was celebrated with much pomp and splendor. He left a document to be read to the senate posthumously, expressly forbidding extension of the empire beyond the Rhine. News of the will was welcomed by the Germans, thinking it gave them a free hand in the region. Germanicus found it necessary to pacify the border, which he did by a combination of scorched earth raids and offers of alliance with Rome - in short, stick and carrot. These raids also kept the army of the lower Rhine distracted from the possibility of mutiny, which had broken out on Augustus's death and only been quelled by concessions and executions.
Roman conquest of the Iberian peninsula
Augustus took the command in 26 BC, the fourth year of the war. He left Rome in 27 BC. There were rumours that he was going to conquer Britannia to perform a great military feat. Instead, he undertook the reorganisation of Gallic provinces that had been left largely unsupervised since their conquest by Julius Caesar in his Gallic Wars (58–50 BC). He might have seen the war in next door Hispania as a chance for military glory. He reached Tarraco (Tarragona) in eastern Hispania in 27 BC, but he arrived in the area too late for fighting before winter set in. In terms of personal propaganda these wars became his war, even though he fought only one campaign. In 25 BC, he retired to Tarraco due to illness. Cassius Dio wrote that he fell ill from over-exertion and anxiety. González Echegaray, places the involvement of Augustus in the political context of his task of delineating and defending the frontiers of the Roman Empire after the Roman civil wars. After the conquest of Gaul there was no more room for expansion and there was the task defence from attacks of the borders in Europe in the face of a reduction in size of the Roman army. In an economic context there was the question of control over the rich gold mine at Las Medullas (the richest in the empire) in Asturia and the abundant iron ores of Cantabria. Towards the end of the Roman Civil Wars there was a shortage of gold and silver.