Which answer matches this clue: the AD 9 ambush in a German forest where three legions under Varus were annihilated by Arminius?

• A Battle of the Weser River
• B Battle of the Teutoburg Forest ✓
• C Battle of the Angrivarian Wall
• D Battle of Idistaviso

The loss of over 15,000 soldiers at Teutoburg Forest ended Augustus's plans to conquer Germania; he reportedly wandered the palace crying Quintili Vare, legiones redde!