The Transport Union is a sovereign federation first proposed after the conclusion of the Interplanetary War. Through its mandate, territory has expanded beyond the Asteroid Belt and the outer Sol system and encompasses all that is not in the gravity wells of the planets themselves..

The Union establishes itself as a greater superpower than the former ones, the United Nations and the MCR, by controlling all inter-system and intra-system trade, as well as other economic and military aspects, such as assuring safety and fairness during interstellar transit throughout the Ring Network.

The trade system would re-stabilize Sol's economy and power balance, and also would improve international cooperation between the UN and the MCR.

The Union is rooted in the belt of Sol. It grew out of all the stations Earth and Mars colonized on asteroids and moons. It now also includes the growing number of void cities and transfer stations.

Unlike the navies of Mars and Earth the Transport Union gives contracts out to armed ships for any mission/assignment they partake in. In some cases independently owned ships are given mandatory security contracts[1]

History Edit

The formation of the Transport Union was first discussed at a conference on the Medina Station, proposed by Holden. The idea was then formalized and accepted by Sol's heads of government. Thirty years after the bombardment of Earth, once the planet is recovered, the union itself has established stations outside the gravity wells and opens for business through a ceremony where president Drummer presides on TSL-5, transfer station at Lagrange-5.

Before this Union was established, the populations in the Belt had been brought together with the Outer Planets Alliance through a shared sense of struggle, oppression, and in many cases rebellion. With the change of conditions brought about because of the ring gates and the treaty which brought about union, the power base of the OPA dissolve and many constituents were absorbed in a new role within the Union. Deft members of the old OPA leadership parlayed their political capital for a position in the Union.

When the colony of Freehold sent a ship through the Slow Zone without authorisation the Transport Union contracted the Rocinante to visit Freehold and inform them that they were being cut off from the Ring network as punishment.

Shortly the Rocinante returned to Medina Station an announcement came through the Laconia Ring stating that they would be entering the Slow Zone. The Transport Union formed a small two-ship fleet consisting of the cruiser Tori Byron and the Frigate Rocinante along with the Ring station Railgun emplacements to fend off any aggression. When the Heart of the Tempest entered the slow Zone it destroyed the Tori Byron the Captain of the Rocinante Bobbie Draper ordered the rail guns to fire on the enemy. However, the enemy warship absorbed all projectal hits and fired it's mysterious weapon against Ring Station destroying the railguns. The Rocinante then surrendered and Medina Station was lost to Laconian Marines in boarding pods.

With the arrival of Laconia, factions of the old OPA re-emerge and act in ways reminiscent of their heyday. Factions such as Golden Bough and Voltaire as well as Johnson's OPA and Ochoa's OPA.[2]

After the defeat of the United Nations, Martian Congressional Republic, and Transport Union at the Battle of Point Leuctra the transport union became a Client State of the Empire of Laconia with its President Camina Drummer being given scripted speeches by the new rulers to say the official Laconian stance.

Ships/Stations Edit

Designation Class Type Appearances Notes
Medina station Behemoth-class Spin-Station TV and Books Located in the Slow Zone
Tori Byron Unknown class Cruiser Books Destroyed by Heart of the Tempest
Rocinante Corvette-class Fast-attack-frigate TV and Books Under mandatory security contract during inital stages of the Laconian Unification Movement
People's Home Void city Station/Battleship Books
Independence Books Destroyed by Heart of the Tempest
Guard of Passage Books
Assurance of Peace Books Never completed. Was abandoned when Heart of the Tempest approached when only half-built.


  1. The Expanse: Persepolis Rising, Chapter 11, Bobbie
  2. "The Expanse: 'Persepolis Rising'", Chapter 25

See also Edit


  1. The Expanse: Persepolis Rising, Chapter 11, Bobbie
  2. "The Expanse: 'Persepolis Rising'", Chapter 25