Martian Congressional Republic Navy

Eros IncidentEdit

“Welcome to the future” —  Spoilers for Leviathan Wakes follow.

When the Canterbury was destroyed, and James Holden released his broadcast incriminating Mars in its destruction, MCRN Donnager picked up Holden and his crew of Knight. During Holden's debrief, the Donnager is attacked by six unidentified ships and eventually destroyed. Holden and his crew escaped on the MCRN Corvette-class ship Tachi and later claim it as salvage.

When the Donnager is destroyed by what is believed to be OPA ships, Mars declares war on the Belt. Later, when Holden releases information that the ships that destroyed the Donnager were actually made on Earth, United Nations Navy ships fire on MCRN ships in Mars orbit, also destroying the Deimos deep radar station. The MCRN then ordered their ships in the system to return to Mars and declared war on Earth.

After the protomolecule was unleashed on Eros during the Eros incident, and its existence became known to the public, the Martian fleet nuked Phoebe into a thin gas that was sucked into Saturn’s gravity.

Ganymede IncidentEdit

“We are not alone” —  Spoilers for Caliban's War follow.

In the eighteen months since the Eros incident, the MCR and UN have been in a bitter cold war.

The Ganymede incident was an event in which a human-protomolecule hybrid attacked Martian and UN Marines on Ganymede, killing everyone except Gunnery Sergeant Roberta Draper. The initial attack was misinterpreted by both the MCR and the UN as an attack from the other side, which led to a battle above and on Ganymede that claimed nearly three thousand military and civilian lives, as well as causing over five billion MCR dollars of infrastructural damage.

Rebuilt fleetEdit

“Enter a new frontier” —  Spoilers for Cibola Burn follow.

By the time of the Conflict on Ilus IV, the MCRN had recovered significantly from its fighting with the UN in the war. The navy had sixteen battlecruisers and fifteen thousand nuclear warheads, alongside "high energy proton cannons".^[8]

Defections and theftEdit

“Catching fire” —  Spoilers for Nemesis Games follow.

Knowing that the MCR was facing an economic crisis due to mass emigration to new systems MCRN Admiral Winston Duarte organized to form a new government in the Laconia system using radical Belters as cover to escape the system with a third of the entire MCRN fleet. This was done by stealing officially decommissioned ships including many Corvette-class ships and giving them to the Free Navy to start a war.

Unknown to the Majority of the MCRN and the Martian Congressional Republic government when the Free Navy Conflict began Free Navy ships were able to approach the ship carrying the Prime Minister Nathan Smith posing as reinforcements. These ships then attacked the fleet at close range catching the MCRN off guard and forcing them to send the Prime Minister off onboard the fastest ship available the Razorback.

Confusion and warEdit

“Break on through” —  Spoilers for Abaddon's Gate follow.

With an entire third of the MCRN fleet gone rogue and heading towards the Laconia system with no known reason the MCR was in crisis that caused the Prime Minister to be deposed. During this time the remaining MCRN fleet was largely kept back and was unable to purse offensive operations until all personels loyalty could be confirmed.

Despite this at least one MCRN ship carrying Martian Marines was able to join the Ceres Offensive led by the United Nations Navy and arrived as one of the first two ships (the other carrying UN Marines) to easily retake Ceres.

The remaining MCRN forces once reorganised and secured were able to join the Consolidated Fleet Offensive including most of the reserves protecting Mars.

Post WarEdit

“An old enemy returns” —  Spoilers for Persepolis Rising follow.

After the Free Navy Conflict the MCRN joined the United Nations Navy as a part of the Earth-Mars Coalition Navy operating more as a single entity.

Laconian DominanceEdit

“The enemy is here” —  Spoilers for Tiamat's Wrath follow.

After the defeat to the Laconian Imperial Navy the MCRN was still permitted to operate as part of the Earth-Mars Coalition Navy in policing operations in the Sol system.

Eros IncidentEdit

Ganymede IncidentEdit