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Multiple realities
(covers information from several alternate timelines)

"We're not the Klingons. We only want to be your partners, to do what the nations of Earth have learned to do: to work together in common cause."

United Earth, also known as the World Government, was the single planetary authority for all Humanity created through the unification of Earth in the 22nd century, following First Contact with Vulcans in 2063. United Earth continued to exist as a member world of the United Federation of Planets after it helped found it in 2161.

Following the Burn in the 31st century, United Earth withdrew from the Federation, but rejoined in 3190. (Star Trek: First Contact; Star Trek: Enterprise; TNG: "Attached"; DIS: "People of Earth", "Coming Home")


By the 2150s, the United Earth was coterminous with all major settlements made by Humanity. This included all territory on Earth itself, after all Human nation-states agreed to work together in common cause. United Earth oversaw all of the Sol system, but in the 2150s, the organization had begun to spread to other nearby star systems.

Planetary bodies that had major Human settlements or military installations on them in the 2150s included:

In the Sol system:

In other solar systems:

In ENT: "Twilight", in an alternate timeline in which Jonathan Archer lost his long-term memory, Earth was destroyed by the Xindi weapon in 2154. When describing the Xindi's drive to exterminate Humanity, a future T'Pol explained to Archer that the Xindi had not stopped with the destruction of Earth (and thus, Luna) but went on to destroy every major Human colony which existed in 2154, which she then listed as Mars, Alpha Centauri, and "Vega colony." It is uncertain, from T'Pol's comments, if these four planets were absolutely the only worlds colonized by Humans, or if there may have been smaller colonies/outposts besides them. As for Deneva, TOS: "Operation -- Annihilate!" states that the planet was colonized by Humans by the 2150s. Furthermore, in ENT: "Horizon", it is stated that Earth Cargo Service trading ships were making runs to the colony in 2153.

In the first half of the 22nd century, the most significant Human presence in space beyond the Sol system itself was in the form of "Boomers", independent Human traders that formed a merchant marine using crude, generationally-owned starships that took years to travel between destinations. While nominally under the control of the Earth Cargo Service, by their very nature, the Boomers were frontiersmen without any real oversight from Earth and generally handled their own affairs. In a sense, these small (with approximately two dozen crewmen on the common Y-class freighter) and mobile ship-borne communities could be seen as "colonies" of a sort. During the second half of the 22nd century, as faster warp drives became more commercially available, travel time between destinations was cut down from years to months or weeks, and response by official United Earth Starfleet ships was, for the first time, made a practical reality; the independent frontier lifestyle of the Boomers gradually began to come to an end. (ENT: "Fortunate Son", "Horizon")


As a planetary state, United Earth was represented in the Coalition of Planets and, later, the United Federation of Planets. Government officials included ministers. (ENT: "Demons")

United Earth's head of state is the President. (DIS: "...But to Connect")

Even after United Earth was formed, many nation-states and confederations of Earth retained their individual identities. These included the African Confederation, Canada, the European Alliance, Russia, and the United States of America. (TNG: "The Naked Now", "The Price", "Conundrum", "Lower Decks"; VOY: "Imperfection")

United Earth had many agencies. These included an early form of Starfleet (prior to 2161), Military Assault Command Operations (MACO), the United Earth Space Probe Agency, and the United Earth Diplomatic Corps, the latter of which was responsible, among other things, for running the United Earth Embassy on Vulcan during the 22nd century. (ENT: "Broken Bow", "The Expanse", "The Forge"; TOS: "Court Martial")

As evidenced by the first draft script of the ultimately undeveloped film Star Trek: The Beginning, a United Earth agency called the "United Earth Stellar Navy" (abbreviated as "UESN" and with an academy of its own) was intended to have been established in that film. [1]


The term "United Earth" was used in relation to a New United Nations declaration of 2036. (TNG: "Encounter at Farpoint") The phrase was used as a name as early as 2067, for the United Earth Space Probe Agency. (TOS: "Court Martial"; VOY: "Friendship One")

By 2079, all "United Earth nonsense" was abolished in the post-atomic horror, at least in some areas of the planet. (TNG: "Encounter at Farpoint")

The activities of the European Hegemony, which existed in the 2120s, led to the formation of United Earth. (TNG: "Up The Long Ladder")

According to, United Earth may have come into being in 2113, though this detail has never made it into canon. (citation needededit) The date is cited to Star Trek: First Contact by some sources, (citation needededit) but except for Deanna Troi speaking of "poverty, disease, [and] war" being gone in fifty years, there is no line in the movie suggesting a unification.

In 2150, the last of Earth's nations joined the "World Government", making United Earth truly global. (TNG: "Attached")

It is a common misbelief that Australia was the last state to join the "World Government", as Beverly Crusher called it, in 2150, but Australia holding out was only used by Crusher as a hypothetical example when discussing the eligibility of the fractured planet Kesprytt with Jean-Luc Picard in TNG: "Attached".

It is, however, possible that the World Government was founded prior to 2150 and that this was the year that the last remaining independent nations chose to join. This is supported by various episodes of Star Trek: Enterprise, such as "First Flight", which established that the United Earth Starfleet existed in the 2130s and 2140s.

Minister Nathan Samuels represented United Earth at talks for the Coalition of Planets in 2155. (ENT: "Demons", "Terra Prime")

It is consistent with the term "federation" (as in "United Federation of Planets") to presume that the United Earth government remained in place following the founding of the United Federation of Planets. Further evidence in this regard includes the 23rd century existence of a United Earth Space Probe Agency in TOS Season 1 and other agencies noted above under the jurisdiction of a Terran global government within the UFP.

In an alternate timeline, the time traveling Romulan agent Sera destroyed Toronto in 2022 and triggered a war between Humans and Romulans that devastated Earth and prevented the formation of the Federation. By the 23rd century, United Earth had colonized Luna, Mars, Venus, and Europa; instead of Starfleet, its space service was the United Earth Fleet. (SNW: "Tomorrow and Tomorrow and Tomorrow")

By 3189, Earth had left the United Federation of Planets and had became self-sufficient. United Earth had once again formed a military style organization called the United Earth Defense Force. (DIS: "People of Earth").

By 3190, Titan had joined United Earth. Later that year, United Earth rejoined the Federation. (DIS: "...But to Connect", "Coming Home")


Archer's ambassadorship is from a 2268 biographical screen seen in "In a Mirror, Darkly, Part II".


Background information[]

United Earth was first referenced in TOS: "The Corbomite Maneuver", when Captain Kirk refers to the USS Enterprise as a "United Earth ship", upon hailing the Fesarius.

In TNG: "Attached", when Dr. Crusher implies 2150 as the year that the last holdout(s) finally joined a unified government on Earth, she refers to simply the "World Government". Her comment, however, gave no indication when said unification began.

According to an unseen It's Federation Day! article created for the Picard family album in Star Trek Generations, Thomas Vanderbilt was the United Earth ambassador to the Federation Founding Ceremony.

The seal of United Earth first appears in ENT: "Home", on a podium Captain Archer speaks at, moments after arriving on Earth, when he and his senior officers are welcomed back after having saved the planet from the Xindi. The idea of devising the United Earth seal and introducing it in "Home" was thought up by the episode's writer, Michael Sussman. He later recalled, "They pitched to me that there was going to be a big ceremony and that there'd be a podium with a Starfleet logo on it. My immediate thought was, 'I don't know if that's right.' They haven't just saved Starfleet, they've saved the planet, so shouldn't that be the equivalent of the flag of our nation and our nation is Earth." (Star Trek: The Official Starships Collection issue 82, p. 15)

While considering how the symbol should look, Mike Sussman also questioned who the governors of Earth in the 22nd century would be. "I found myself asking 'what is the government of Earth like?'" he remembered. "We certainly said in the [ENT] pilot[!] that the nations of Earth were united but what is the name of the government? Was it the new United Nations? Was it the United Earth? We certainly heard both terms thrown about." A passionate fan of Star Trek: The Original Series, Sussman was meanwhile aware that, in the earliest episodes of Star Trek, there are several references to the United Earth Space Probe Agency, as the idea of the Federation hadn't yet been established behind-the-scenes. He also knew that, in the TOS second pilot "Where No Man Has Gone Before", there is a styrofoam cup adorned with a symbol that looks like it might represent United Earth. (Star Trek: The Official Starships Collection issue 82, pp. 15-16)

Deciding precisely how the logo in "Home" should look involved much consideration. "For a long time, I was actually dreading designing the United Earth logo," admitted Michael Okuda, "because it was such an important thing." (ENT: "The Forge" audio commentary, ENT Season 4 Blu-ray)

Faucet, 2265

The cup that inspired the United Earth seal

Inspiration came from the aforementioned cup which appears in "Where No Man Has Gone Before" and seems to be decorated with the symbol of United Earth. "It kind of looked like the UN logo, that said USS Enterprise and had palm leaves on it," Mike Sussman remarked. "We clearly weren't going to do that logo exactly but I wanted to see that design." (Star Trek: The Official Starships Collection issue 82, p. 16)

As it turned out, Mike Okuda needn't have worried about the task of designing the seal of United Earth. "When it came time to design," he said, "you suddenly realize, 'Well, you want to point toward the Federation [in design lineage] and you want to show Earth,' so it's actually created very quickly." (ENT: "The Forge" audio commentary, ENT Season 4 Blu-ray)

Mike Sussman was extremely pleased with how the symbol was introduced. "To me, it was [a] very moving and emotional moment where Archer is addressing the people of Earth and there is the Earth logo: Earth embraced in the palm leaves just as the Federation logo is the universe in that same kind of graphic," he observed. "I think that logo alone speaks volumes to me about Star Trek and its ideals and about where we will hopefully go as a species and that is something to [hope] for. To me, it is as hopeful as the image of Earth rising over the moon that the Apollo astronauts photographed." (Star Trek: The Official Starships Collection issue 82, p. 16)


In the novel Articles of the Federation, it is revealed that United Earth came into existence in 2130, with the signing of a document called the Traité d'Unification (β) at the Place de la Concorde (β) in Paris, France; the Place de la Concorde later becomes the site of the Palais de la Concorde (β), the Federation's capitol building. The novel The Good That Men Do followed the notion that the last nation to become part of United Earth was Australia.

The short story "Eleven Hours Out" in the anthology Tales of the Dominion War indicates that United Earth is a parliamentary system, as an unnamed Prime Minister of United Earth is described as touring the devastated city of San Francisco after the Breen attack of 2375, along with the President of the United States and Federation President (established in a subsequent novel, A Time to Kill, as Min Zife (β) of Bolarus). The novel Starfleet: Year One features a character named Lydia Littlejohn (β), who served as President of United Earth during the Earth-Romulan War. If the apocryphal stories are accepted as being in continuity with one another, this may be an indication that United Earth utilizes both presidential and prime ministerial offices, akin to the systems of the present-day State of Israel or Italian Republic. (In such systems, the President is usually the head of state, and the Prime Minister is the head of government.)

The Star Trek: Enterprise novel Last Full Measure reveals that United Earth was involved in a number of very low-level conflicts with factions on alien planets (not full governments) and a rebellion on Mars in the years prior to the Xindi attack of 2153; MACO forces played a decisive role in those conflicts. United Earth's military is also revealed to have inherited the martial funeral ceremony of flag folding.

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