The Glacis was a light cruiser of the Callas Republic which was part of the Alliance Fleet sent to the Syndic home system. The Glacis survived the ensuing Syndic ambush and the flight from the system. She took part in a number of engagements as part of the Lost Fleet under the command of Captain John Geary, including the pivotal battles at Sancere. She was later destroyed by a pair of Syndic battleships while exiting the jump point at Daiquon. Nearly half her crew were lost with the ship, the survivors being distributed amongst the remaining Callas Republic ships.