Battle of the Teutoburg Forest

The Battle of the Teutoburg Forest took place in A.D. 9 when an alliance of Germanic tribes led by Arminius (also known as "Hermann") ambushed and destroyed three Roman legions led by Publius Quinctilius Varus.

The battle began a seven-year war which established the Rhine as the boundary of the Roman Empire for the next four hundred years, until the decline of the Roman influence in the West. The Roman Empire made no further concerted attempts to conquer Germania beyond the Rhine after the war was over.