Begun in Osea as the CG(X) project, the Arcadia class guided missile cruiser is based on the Century class destroyer's hull and superstructure, but with all of its guns removed and replaced with additional VLS cells totaling 512. The primary mission of the Arcadia class is that of the Excaliburs that it replaced, to provide carrier battlegroups with air defense as well as to act as mobile nodes in Osea's anti-ballistic missile system.
Although the GRDF regarded Excaliburs as more efficient vessels and saw no need for ABM capabilities, they acquired four Arcadias in 2028 as arsenal ships.
Ships
General Resource Defense Force GRS Achilles (CG-9) - GRS Agamemnon (CG-10) - GRS Diomedes (CG-11) - GRS Menelaus (CG-12)