The Laconian Imperial Navy is the space naval branch of the military of the Empire of Laconia. Formed from a defected third of the Martian Congressional Republic Navy Fleet forces under Admiral Duarte passed through the gates to the Laconia system where a new fleet and government was formed.

History Edit

Formed during the Free Navy Conflict, the Laconian First fleet consisted of former Martian Congressional Republic Navy ships. For thirty years Laconia remained in seclusion until it had replaced its former vessels with new ships built with technologies discovered through the Protomolecule. Laconia's new ships very vastly superior the those of the Sol powers containing self-healing armor and greatly increased missile capacity.

Within several months of establishing the Laconian government the first ship had been lauched at the Laconia shipyards. This ship the Proteus was deployed to the Slow Zone to install Rail-guns onto the Ring Station surface to support the Free Navy forces at Medina Station. Despite the Proteus having been seen by Free Navy personnel knowledge of Laconia having shipyards with which to build new vessels was not known to any of the Sol powers even thirty years later.

Upon the Laconia Unification War commencing, a single battleship was able to defeat and conquer the Transport Union, Martian Congressional Republic, and United Nations. Following the official ratification of the surrender and unification treaty, the Human empire was born, and along with it, the Unified Imperial Navy.

By this time, the original ships that left Mars for Laconia had been decommissioned for the new ships utilizing the new technologies. The entire Laconian Imperial Navy by this time consisted of over 100 ships with the Magnetar-class being the largest and most powerful by far[1].

Shipyards Edit

Shipyards Appears Notes
Laconia Station Books A Ring Builder Empire shipyard discovered by an MCRN probe. Was used by the Empire of Laconia to create a fleet vastly superior to anything already existing.


Fleet Appears Notes
First fleet Books Composed of a third of the MCRN fleet that defected to Laconia. By the Laconia Unification War this fleet had been decomissioned.
Home fleet Books For the defense of the Laconia system and policing operations.

Known ships Edit

Designation Class Ship type Appearances Notes
Heart of the Tempest Magnetar-class Battle cruiser[2] Books Defeated the entire Earth-Mars Coalition Navy and Transport Union fleets.
Eye of the Typhoon Books
Voice of the Whirlwind Books
Proteus Proteus-class Battle cruiser[3] Books The first ship produced at Laconia. Was used to send supplies to the Free Navy including the railguns for the Slow Zone.
Gathering Storm Pulsar-class Fast destroyer Books Captured by insurgents led by Bobbie Draper
Daskell Protector-class Destroyer Books
Ackermann Books
Ekandjo Books
Smith Books
Stover Books
Cleo Unknown-class Patrol ship Books
Lightbreaker Unknown-class Cargo ship Books Commandeered at Medina station for prisoner transfer.
Barkeith Donnager-class Battleship Books One of the stolen third of the MCRN fleet. Barkeith vanished when entering the Laconia Gate by an anomaly caused by ships entering the gate moments before

Ship-classes in serviceEdit

Class Ship type Photo Notes
Magnetar-class Battle cruiser Often referred to as Battleship by non-Laconian forces.
Proteus-class Battle cruiser Phased out of service by Laconia Unification War
Donnager-class Battleship Donnager Render 1 One ship in the First fleet. Was destroyed by Ring gate anomaly before entering Laconia system
Protector-class Destroyer Several used to establish power across recently conquered Sol system.
Pulsar-class Fast destroyer


  1. The Expanse: Persepolis Rising, Chapter 8, Singh
  2. The Expanse: Persepolis Rising, Chapter 16, Singh
  3. The Expanse: Persepolis Rising, Chapter 8, Singh (implied)