A battle in 9 AD in which the Germans under Arminius annihilated three Roman Legions WordNet 3.0 & Open English WordNet

The Battle of the Teutoburg Forest, described as the Varian Disaster by Roman historians, was a major battle between Germanic tribes and the Roman Empire that took place at modern Kalkriese from September 8–11, 9 AD, when an alliance of Germanic peoples ambushed Roman legions and their auxiliaries, led by Publius Quinctilius Varus. Wikipedia

9 AD, between Germanic tribes and Roman legions Wikipedia Disambiguation

Comprehensive defeat of forces of Roman Empire in 9 CE Wikidata