40px-Terminal.png This article, UNSC Merchant Marine, was written by Sgt.johnson, Spartan-091 and -AR-. Please do not edit this fiction without the writers' permission.

The UNSC Merchant Marine is the auxiliary service to the UNSC Navy, and is under the authority of the UNSC Naval Command. They operate a fleet of privately-owned vessels used to ferry goods to Earth and her colonies.