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.
Res Gestae Divi Augusti
Res Gestae Divi Augusti (Eng. The Deeds of the Divine Augustus) is the funerary inscription of the first Roman emperor, Augustus, giving a first-person record of his life and accomplishments. The "Res Gestae" is especially significant because it gives an insight into the image Augustus portrayed to the Roman people. Various portions of the "Res Gestae" have been found in modern Turkey. The inscription itself is a monument to the establishment of the Julio-Claudian dynasty that was to follow Augustus.