Great War of Light and Darkness

The Great War of Light and Darkness was at the time the most devasting conflict ever fought. This war blurred the tradtion that Jedi and Sith had to be enemies. During this 28 year long war, the Galactic Republic and the Jedi of 5000 BBY and their Sith allies of 5000 BBY and the Sith Empire near the end of the Jedi Civil War were also surprisilingly the Republic allies. Revans Jedi and his forces from the future and the Mandalorians at the end of the Mandalorian wars also fought for the Republic. And this grand alliance fought against a Sith Empire that seemed almost unstoppable and it's Mandalorian allies.