Starfleet

During production of early episodes of the original series, several details of the makeup of the Star Trek universe had yet to be worked out, including the operating authority for the USS Enterprise. The terms Star Service ("The Conscience of the King"), Spacefleet Command ("The Squire of Gothos"), United Earth Space Probe Agency ("Charlie X" and "Tomorrow Is Yesterday"), and Space Central ("Miri") were all used to refer to the Enterprise's operating authority, before the term "Starfleet" became widespread from the episode "Court Martial" onwards.

However, references to the United Earth Space Probe Agency, and its abbreviation UESPA, are to be found in episodes of later series. For example, the Friendship One probe (launched, on the fictional timeline, in 2067) is marked with the letters UESPA-1 in the Star Trek: Voyager episode "Friendship One". Other background props included additional UESPA references, such as Captain Jean-Luc Picard's family album in Star Trek Generations. During the production of Star Trek: Enterprise, some larger Starfleet insignia designs included the name "United Earth Space Probe Agency".

Multiple Star Trek: Enterprise episodes refer to Starfleet having started operation some time between 2112 and 2136, when it funded research begun by Zefram Cochrane and Henry Archer, which led to the first successful flight of Warp-3 vessels in the 2140s. [1] This research is said to have evolved into the NX Program, which led to Starfleet launching its first Warp 5–capable starship, Enterprise (NX-01), in 2151, followed by Columbia (NX-02), in 2155, as well as other vessels.

Starfleet acts under the Prime Directive, a policy of non-interference with pre-warp worlds, such as interference in their internal politics. This is said not to be a human construct, but stems from policies originally implemented by the Vulcans, who regarded an alien civilization's attainment of warp speed as the sign of their importance and a reason for making first contact with them. The Prime Directive and Starfleet's first-contact policies are at the center of several episodes in each Star Trek series and the film Star Trek: First Contact.

Starfleet Headquarters is shown to be located on Earth, northeast of the Golden Gate Bridge in the present-day Fort Baker area. Starfleet Academy is located in the same general area.[2] Additionally, various episodes show Starfleet operating a series of starbases throughout Federation territory, as ground facilities, or as space stations in planetary orbit or in deep space. One example is Deep Space 9, a station near a wormhole commanded by Benjamin Sisko after its transfer from the Cardassian Empire.

Starfleet has been shown to handle scientific, defense, and diplomatic missions, although its primary mandate seems to be peaceful exploration in the search for sentient life, as seen in the mission statements of different incarnations of the USS Enterprise. The flagship of Starfleet is often considered to be the starship USS Enterprise.

Starfleet has many components, including:

Although Humans are the most-often-seen crew members onscreen, Starfleet is shown to be composed of individuals from over 150 species, with Vulcans perhaps being the most common aliens seen.

Already in TOS, the USS Enterprise and other ships have a mixed-species crew, although this does not appear to be an absolute rule; for instance, the episode "The Immunity Syndrome" refers to the USS Intrepid as having an all-Vulcan crew. The Star Trek: Deep Space Nine episode "Take Me Out to the Holosuite" also features such a crew, serving aboard the USS T'Kumbra.

In keeping with this idea, Star Trek: Enterprise, in its first two seasons, was the only show to have an entirely human crew, as it was set before the formation of the Federation, although the vessel did carry Phlox, a Denobulan serving in a medical exchange program, and T'Pol, then serving as an observer from the Vulcan High Command.

Star Trek: The Next Generation saw the introduction of Starfleet's first Klingon officer. Other races—such as Bolians, Betazoids, and Trill—were seen, and given more central roles, in later series; some of these, notably Klingons, had been shown as enemies in earlier episodes.

Various episodes show that Earth/Federation citizenship is not a necessary pre-condition for joining Starfleet. T'Pol of Vulcan is shown to be the first non-human Starfleet officer, receiving a commission as a commander following the Xindi mission and her resignation from the Vulcan High Command. Even after the Federation's formation citizenship was not required; several officers are from planets that are not part of the Federation. For example, Star Trek: TNG's Ensign Ro Laren, a Bajoran aboard the USS Enterprise-D; her fellow Bajoran Kira Nerys, who was field-commissioned as a Starfleet commander so that she could aid the Cardassian resistance during the Dominion War; and Ferengi Nog, who enters Starfleet Academy in season four of Deep Space Nine; all were from non-member planets. In addition, Quinn and Icheb from Star Trek: Voyager both spoke of joining Starfleet.

An example of the process imagined by the writers is given when the character Nog attempts to apply to the Academy. He is told that since he is from a non-member world (Ferenginar), he requires a letter of recommendation from a command-level officer before his application can be considered, with the implication that this is the standard procedure for all non-Federation applicants to Starfleet.

In the Star Trek Expanded Universe, an example of what typically becomes of a new Federation member world's military is depicted when the Bajoran Militia is integrated into Starfleet upon Bajor's entry into the Federation.

Dunes on Mars look like the Starfleet emblem.[6][7]

• Star Trek uniforms

• Starfleet at Memory Alpha (a Star Trek wiki)