This brought Augustus to the spot, and he spent two years in studying the problems of Gaul and Germany. In 12 B.C. the first campaign was undertaken under the command of Drusus, his younger stepson. Drusus, who was not yet twenty-five, was the most brilliant figure of his day, brave, handsome, virtuous, adored by the soldiers, and a thoroughly capable general. On this occasion he crossed the Rhine and descended into Dutch territory, laying waste the lands of the Sygambri and the other hostile tribes who had provoked these punitive measures. He accepted the submission of the Frisians who lived on the coast of North Holland. During the winter his troops seem to have been employed in cutting a canal from the Rhine to the Zuyder Zee. Next year he crossed again, marched on, and threw a bridge across the Lippe, crossed the territory of the Cherusci--the most warlike of all the tribes--and halted on the banks of the Weser. He built a great fort at the junction of the Lippe and the Alme or Ems, and cut a highway along the banks of the Lippe to join the new fort Aliso with a great camp on the Rhine near Xanten. In the next year there was more building and settling, and in 9 B.C. came the great effort. Drusus marched out into Suabia and Cheruscia, crossed the Weser, ravaging everywhere, and reached the Elbe. This river he essayed to cross, but he could not, and, as the historians put it, omens appeared to forbid further progress. This then was the Roman limit. Somewhere between the Saale and the Weser, Drusus fell from his horse and sustained injuries which resulted in his death. Augustus, though greatly grieved, determined to continue his operations. Tiberius was sent to continue the work, and 40,000 Sygambrians were transported into Roman territory. We know little of the work of the next dozen years. Another legate reached the Elbe. A great viaduct was constructed between the Ems and the Rhine. During this period the pacification was apparently proceeding with rapidity. Many of the young Germans came into the Roman camp and learnt Roman ways and Latin speech. The head-quarters were still at Vetera Castra near Xanten and at Mogontiacum (Mainz), with summer quarters at Aliso. In A.D. 4 fresh campaigns were undertaken by Tiberius. For many of these expeditions the Roman historians offer no excuse or justification. They record with pride the immense slaughter and devastation that accompanied them. It is hard to resist the conclusion that much of this fighting was undertaken for its own sake, or to exercise the legions. In A.D. 5 the greatest expedition of all was undertaken. There was a great “durbar” at which the wild Chauci and Cherusci handed in their weapons and did obeisance to the Roman general. The Langobardi--later known as the Lombards--submitted, and Tiberius crossed the Elbe itself, while the fleet which had “circumnavigated the recesses of the Ocean” sailed up the river to meet the army with supplies.