Arminius, who'd served as an Auxiliary, set up an ambush and turned coat. He also attempted to fight the Roman force that tracked him down, but as was much more usual, the tide turned, and he had to flee for his life. He took refuge deep in Germanic (Frankish, as in the founders of France) territory, among some relatives of his. A few years later they accepted a contract hit on Arminius put out by the Romans. I suspect they had to produce his head to collect, but regardless, they killed him.
It wasn't "The Battle That Stopped Rome", either; Roman activity well east of the Rhine continued for a long while. Not many years ago a Roman cemetery was dug up in Copenhagen, Denmark.
