At Rome it was felt impossible to look on passively at the growing power of the Marcomannian state on the Danube. A simultaneous attack from east and west was to work its destruction. While Tiberius was assembling a large force at Carnuntum to proceed up-stream, Sentius Saturninus was to advance from the country of the Chatti by way of the Hercynian forest. This well-concerted scheme was, however, destined never to be executed. The revolt of the Pannonian tribes obliged Tiberius to lead his legions to the lower Danube, and Augustus hastened to keep the Marcomannian chieftain fast among his mountains by a peace on favourable terms, lest he should increase the impending danger on the Adriatic by joining the enemy. We have already spoken of the terrible war by which the country along the lower Danube was at once conquered and reduced to a desert. When Germanicus brought to Rome the news of the victorious issue of the three years’ conflict, a mood of unbounded jubilation took possession of the capital. The people vied with one another in celebrating these triumphant achievements with festal banquets and monuments. But the holiday was quickly transformed into a day of mourning, the thanksgivings into anxious prayers, when the terrible news of the disasters in Germany smote upon the bustle of the city like a bolt from the blue.[c] THE BATTLE OF TEUTOBURG FOREST [Sidenote: [9 A.D.]] It has already been mentioned that, in the years 4 and 5 A.D., Tiberius had achieved some successes in northwest Germany. According to Velleius these successes consisted in the subjugation of the Caninefates, Hattuarii, and Bructeri, and in the voluntary submission of the Chauci and, more especially, of the Cherusci. It has also been observed that, from what Velleius says we can form no clear conception of the relations between these tribes and Rome, though from the different terms which he employs in speaking of the two groups it seems probable that the Cherusci and a part of the tribe of the Chauci occupied the position of allies, and had pledged themselves to act as auxiliaries. Strabo also says τὰ τρία τάγματα παραστονδηθέντα ἀπώέτο ἐξ ἐνέδρας. [Illustration: EARLY GERMAN WEAPONS]