Third Colonial Conflict
From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
The Third Colonial War occured 60 years prior to the Cylon Holocaust. All that is known of the war is that Caprica and Sagittaron were on opposing sides. The Sagittarian fleet used warbirds and the Caprican Expeditionary Fleet used early vipers, medivacs, and flattops.