The Guyana-class (aka Ground Battleship), is a command and assault carrier used by Earth Sphere Federation and A-Laws forces operating on Earth. Colonels Kati Mannequin and Sergei Smirnov were both assigned command of Guyana-class in the year AD 2312, Kati as a member of the A-Laws hunting the Gundams and Sergei as part of the regular military searching for Katharon.