The Battle of Barios II took place on the first day of attacks. A large Galactic Alliance force of two capital ships and six frigates destroyed the Sith garrison fleet of just one frigate and two corvettes. Then, they landed 50,000 troops to conquer the surface. The Sith had only 8,000 troops and 30,000 poorly trained and underarmed Bariosians. The battle lasted for only eight hours and in the end, 3,000 Sith soldiers and 18,000 Bariosians surrendered the planet.

Barios II was under the control of the Galactic Alliance until the Galaxial War ended when it was turned back over to the Nymean Ascendancy.