Arminius - Battle of the Teutoburg Forest

I have been fascinated to learn some ancient German history this week, no less than the first major defeat of the Roman Army.
Especially interesting is the theory that Arminius was the origin for the legend of Siegfried and the Dragon.

The Roman's 10 km long armoured infantry column snaking it's way thru the primordial German forest becoming the Dragon and Arminius the hero that slew it.

Even archaeological evidence that Arminius' army dug drainage ditches along the rear of their fortifications to direct rain water from there wall down the slope to the boggy land that the Romans were fighting on could be interpretted as being reflected in Siegfried story as the trench he digs below the Dragon to swim in it's blood (on the advice of a disguised Odin) to become immortal.