The Ocean, a Destroyer class vessel, served the Galactic Alliance throughout the duration of the Second Galactic Civil War.
As a flagship, the Ocean led the blockade of Corellia which was executed by the Alliance's Third and Fifth Fleets.
When the blockade began, the recently appointed Supreme Commander Cha Niathal was present on the ship, alongside Admiral [Makin], who commanded the Third Fleet. Rogue Squadron received orders assigning them to the Ocean.
As the conflict progressed, this ship had the largest proportion of Galactic Alliance members reporting issues with their weapons due to insufficient resources. Biris J. Te Gaf was eventually assigned to this ship. It took part in both the Second Battle of Fondor and the Second Battle of Roche.