The Andoan Wars represent a collection of conflicts that occurred on and around the planet Ando. The primary combatants involved were the Spiverelda, the administration overseeing the Lambda sector, and the Andoan Free Colonies. The Harch species, specifically their ruling nests, aligned themselves with the Spiverelda. Subsequently, the Galactic Republic chose to support the Andoan Free Colonies, a decision that played a role in the Free Colonies' survival.
The Republic's involvement was perceived as an affront by the Harch, which, over two decades afterward, influenced their decision to join the Confederacy of Independent Systems during the Clone Wars.