United Earth Starfleet

the formation of the United Federation of Planets and the Federation Starfleet.

History
An early iteration of Starfleet was founded in the early 21st century as part of the United Nations, working alongside NASA to promote science and spaceflight. At this juncture Starfleet did not actually control any space vehicles. Sean Christopher was an early trainer there. It is not known whether this Starfleet grew into the United Earth Starfleet, or merely provided the inspiration for it. (ST performance: Star Trek Live)

Starfleet was chartered in the early 22nd century, presumably as a branch of the United Earth Space Probe Agency. Jonathan Archer joined soon after its inception, after previously considering joining the Earth Cargo Service.

The United Earth Starfleet was responsible for several key warp test flights, including the NX-Alpha. 

In 2151, Starfleet launched Enterprise NX-01 its first Warp Five vessel, followed in 2153 by Columbia NX-02. These two ships were largely responsible for establishing United Earth as a legitimate interstellar power and paving the way for the founding of the Federation.

Unlike its future incarnation, the Earth Starfleet was not a military organization, but rather was purely scientific and exploratory in its mission. MACOs fulfilled any military functions needed aboard Earth Starfleet vessels. 

This separation of roles underwent modification with the creation of the Coalition of Planets, and in the lead-up to the Earth-Romulan War, when Starfleet was called upon more and more to provide defensive and offensive service. 

Leadership

 * Admiral Maxwell Forrest - commanding officer until his death in 2154 on.
 * Admiral Samuel Gardner - successor to Admiral Forrest following his 2154 death.
 * Admiral Gregory Black
 * Admiral

United Earth Starfleet ships

 * Intrepid
 * NX class
 * Enterprise (NX-01)
 * Columbia (NX-02)
 * Challenger (NX-03)
 * Excalibur (NX-03)
 * Discovery (NX-04)
 * Atlantis (NX-05)
 * Endeavour (NX-06)
 * Intrepid (NX-07)
 * Avenger (NX-09)
 * Currie (NX-16)
 * Daedalus class