Ilford Wargames Group
Following the discovery of interstellar travel, the UN was granted overall control of off-world forces and structured these as follows: -
Note that the restriction of the complete disarmament of space was revoked when the possibility of contact with aliens was deemed imminent. This was later found to have been a prudent option.
The UNSF has found itself embroiled in two conflicts: On Ran (Epsilon Eridani), the C'thik are fighting a civil war about control of access to the UN, and at Firefly the Oskhoak challenged the UN's access to the system.
The UNSN maintains two parallel structures: For Major Vessels and for Small Craft (Shuttles and Fighters)
The Crew of a Vessel is made up of one or more Divisions
The basic operational unit of the UNSN is the Squadron, commanded by a Captain
This squadron may be made up of tactical groups (where needed) of multiple vessels that manoeuver and fire together which are commanded by the senior Commander in that group.
The core operational group of the UNSN is a Flotilla of multiple Squadrons, commanded by a Commodore
In Theory, Multiple Flotillas may operate together as a Combat Group, commanded by a Rear-Admiral.
The smallest strategic unit is the Fleet (Commanded by a Vice Admiral) or Base (Commanded by a Port Admiral). n.b. This is a cartographic construct collecting all Combat Groups, Flotillas and Squadrons in an area together. Fleets are mobile units; Bases are static.
In Theory, Fleets and Bases may be collected into a Sector (commanded by an Admiral)
Multiple Sectors, and any independent elements, are collected into the Navy commanded by the Grand Admiral
A collection of 1-6 small craft on a single vessel is a Flight commanded by a Flight Leader
A collection of Flights on a single vessel is the small-craft Wing for that vessel commanded by a Wing Commander
The collection of Flights on multiple vessels in a squadron is a small craft tactical group which is commanded by the senior Wing Commander in that group.
The collection of all small craft on multiple vessels in a Flotilla is a small-craft Group commanded by a Group Captain
The collection of all small craft on multiple vessels in a Combat Group is a small-craft Force commanded by the Force Commodore.