The United Nations Space Command (abbreviated UNSC) is the organization that most of Humanity is a part of.
Branches of the UNSCEdit
The UNSC is made up of many Branches, everyone preforming a different and important role.
The Navy in in charge of Space Combat.
The "Grond-Pounders" of the UNSC, Marines are in charge of warfair on the ground.
The Army is a Branch of the UNSC. It is not often used.
The Air Force is mostly responcible for Fighter and Bomber aircraft.