Decisive Battles

[Flavivs Aetivs]

For the 1st century AD I see the Battle at Teutoburg Forest as the most important one. It changed the grand strategy of the roman empire - if it ever had one - significantly.

For the 1st century BC, I see your point with the downfall of hellenism. But was there any hope at all? However, I am undecided, which battle during the roman civil war was more decisive for the implementation of the roman monarchy, which finally changed the world: Pharsalos, Philippi or Actium.

Thanks for your suggestions. I can see what you're saying about the civil wars, I'm interested in the discussion that will certainly follow.

As for Teutoberger Wald, I can see it as big, but not really decisive. The Romans didn't conquer Germania, but they maintained control of that area with the Agri Decumates and the Frisii anyways.