The Schism Wars

"Schism War" is a term given to large galactic wars that involve the 'great powers' splitting into 2 (or more) opposing military alliances. There have been 3 Schism Wars each one larger than the last. The 1st schism war took place almost entirely in the Ovany system. The 2nd saw the entire Ovany arm dividing into 3 factions. The 3rd saw the entire Galaxy fighting each other.