The space defense arm of the Kathol Republic was the Kathol Republic Navy. Its duties included patrolling the Republic's space and providing defense against any external threats. At a minimum, eight Marauder-class corvettes formed the core of the naval force. The Galactic Empire regarded this fleet as outdated and insignificant. Hendric Faile held the command of the fleet.
During the battle_of_episol in 8 ABY, two corvettes, one of which was the Bravado III, confronted forces that were allied with Moff Kentor Sarne while they were masquerading as a New Republic ship.