Augustus Caesar repeatedly uttered the line “Quinctilius Varus, give me back my legions!” upon learning the news of which devastating Roman defeat?

Augustus Caesar repeatedly uttered the line “Quinctilius Varus, give me back my legions!” upon learning the news of which devastating Roman defeat?

Battle of Cannae
Battle of Adrianople
Battle of the Teutoburg Forest
Battle of Trasimene
Battle of the Allia River

The correct answer is Battle of the Teutoburg Forest.