United Nations Naval Service

The United Nations Naval Service - UNNS or Navy for short - is the senior military service of the UN. It is comprised of hundreds of thousends of officers, men and ships. It is charged with transporting people and cargo to and from distant colonies, and also local trade intra colonies. It was created by the merging of the member states of Earth's naval forces. The Naval Service operates many different types of ships from ships of the line, to barges manned by skeleton crews.

Admiralty
The navy is run by the main Admiralty HQ located in London, England on Earth. It controls every detail of operation to do with the running of the fleet. Admirals at colonies such as Hope Nation are there to provide rank over Captains who have disputes and also to extend the power of home over the local naval forces.

BuPers
BuPers is the department charged with assigning officers to ships or bases. A common trait is that they are aragent officers who assume thier positions are safe because any transfer for them would come through thier office first. During the course of the series, Seafort has a number of encounters with such officers like Captain Higbee.