The battleship is a type of capital ship that is heavily armed and armored. Some battleships are referred to as dreadnoughts such as the UNN's third-generation battleships which represent the third redesign since the buildup of the first conflict between Earth and Mars as well as the OPA flagship Behemoth. The battleship designation can be applied to ships from any fleet including but not limited to those of the MCRN, UNN, and the Laconian Imperial Navy, with the latter referring to such vessels as battle cruisers.
These ships can take a lot of punishment during battles between ships. However, during one such engagement between the MCRN Donnager and six unidentified ships equipped with advanced torpedoes and rail guns, the MCRN battleship initiated the Condition Zero failsafe protocol that would self-destruct the ship if either the bridge, Command Information Center (CIC), engineering are breached by boarders.