|Battle of Cimtar|
|Cylon raiders begin the ambush on the battlestars|
|Date:||During the Peace Conference|
|Place:||Cimtar, Twelve Colonies of Man|
|Result:||Decisive Cylon victory, destruction of the Twelve Colonies|
After 1000 yahrens of war, the humans of the Twelve Colonies vie for peace with Lord Baltar acting as diplomat. The peace is to become official at Cimtar, a moon believed to be neutral territory. Instead of peace, the Cylons launch their largest onslaught ever against the Colonials. The Cylons use a two-pronged attack, striking at both the peace delegation (including the battlestars) as well as the Twelve Colonies.
In an alternate reality where a battlestar named Galactica was never built, President Adama survives the attack only through the efforts of Commander Tigh, who sacrifices his life in the process (Classic Battlestar Galactica Vol. 2 #3).
Following this event, two noteworthy factions harass the Cylon Empire: a Colonial Resistance lead by Adama himself, and a motley crew of pirates lead by Starbuck (Classic Battlestar Galactica Vol. 2 #3 & #4)