2nd Marine Expeditionary Force (MCR)
A Martian Marine Corps formation that combines ground, space and logistics elements under one command, able to push combat power into a forward area and sustain itself there without outside support.
The 2nd Marine Expeditionary Force is a formation of the Martian Marine Corps, which falls under the Martian Congressional Republic Navy. It is a Marine Space-Ground Task Force, meaning it combines ground, space and logistics elements under one command: it can push offensive combat power into a forward area and then sustain itself there, without outside assistance, for an extended period. It runs its own special warfare training facility.
How far into The Expanse have you read?
Set your place and this page rewrites itself to exactly that point. Nothing ahead of you will show.