History Main / OneWorldOrder

** Averted in ''Anime/MobileFighterGGundam'', as nations as we know it today still exist though their government moved to the space colonies. There is a United Colonies Federation, but they are merely like the United Nations of today and the winning country in the Gundam Fight simply becomes the leader for four years.

** In the Universal Century ''Gundam'' shows, the Earth Federation had long established control over the entire planet. On the other hand, it's presented (especially further down the line) as an elitist, bureaucratic mess rife with corruption. Their reach beyond the planet is also shown to be shaky at best, with many of the colonies not exactly eager to be under EF rule. And it's strongly hinted that their grip on Earth itself progressively becomes less stable.

The United Nations was a popular choice for fulfilling this function before the organization gained a reputation for corruption, indecision and inefficiency that persists to this day. Of course, [[TropesAreTools that in itself can be a useful trope]].

** This actually makes a measure of sense. The Tau homeworld was contentious and wartorn until the coming of the Ethereals and the firm establishment of the Caste system united them for the Greater Good. Then came a period of glorious victory and expansion. Now, they're butting up against the big boys and having to face against the horrors of alien races. This is the cause of most of their divisions.

** Similarly, in ''Literature/TheDispossessed'', Urras is divided into several countries, including ([[NominalImportance at minimum]]) the liberal democratic capitalist A-Io and the [[PeoplesRepublicOfTyranny "socialist" totalitarian state]] Thu, which are fighting a proxy war in unstable [[BananaRepublic Benbilli]]. If this sounds like the UsefulNotes/ColdWar... well... [[FantasyCounterpartCulture it should]]. Urras, it should be noted, is a double planet, with its (relatively) barren partner Anarres having been settled by "Odonian" anarcho-syndicalists who, as such, have no state. Although [=LeGuin=] is herself a noted anarcho-syndicalist, Anarres averts MarySuetopia by having a legion of problems, including the development of [[ObstructiveBureaucrat entrenched bureaucracy]] among the "syndics."

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* The [[PlanetTerra Terran Republic]] in ''Videogame/PlanetSide'' controls effectively the entirety of human civilization. In the first game, the Republic is a [[PeoplesRepublicOfTyranny republic in name only]] that monitors ''everyone'', but has created a thousand years of peace. In the second game, the Republic was founded after a century of war devastated Earth and was putting humanity on the road to extinction, and is a benevolent socialist government, though TheRemnant we see was [[FascistsBedTime forced into drastic measures]] to try and curb insurrection on the [[LostColony crippled and lost colonization fleet heading to Auraxis]]. Subverted in both games where the miners, libertarians, and [[MegaCorp corporations]] break away to form the [[NGOSuperPower New Conglomerate]], while the scientists and tech worshippers split off to form the [[MachineCult Vanu Sovereignty]] while isolated on Auraxis

* ''Anime/LegendOfGalacticHeroes'' subverts this in the long run. Planets by and large are run by only a single government, usually under either Empire or Alliance. But the sheer expanse of space (and not to mention human nature) means that humanity doesn't stay united for long.

* PlayedWith in ''TabletopGame/BattleTech'', where One World Orders were brought about twice, only to collapse within a century or two. First there was the Terran Alliance (Earth and the initial human colonies), which fell apart when first the colonies rebelled and then Terrans themselves overthrew the Alliance. Later practically all of humanity - the Great Houses of the Inner Sphere and the Periphery states - were united under the First Star League.
This fell apart again after two hundred years, leading to a ForeverWar that has raged on and off (mostly 'on') for nearly four centuries now (2786 to the 'present day' of 3151), with the driving impetus being reestablishing the Star League in one form or another.

* The Franchise/{{Gundam}} series in general are a subversion of this trope; when colonies are established in space, they inevitably try to become independent from Earth resulting in Space Wars.

* PlayedWith in ''TabletopGame/BattleTech'', where One World Orders were brought about three times, only to collapse centuries later. First Earth and its inital colonies, after the colonies rebelled, they were reconquered as the Terran Hegemony, Newer colonies rebelled again. Then everything was united under the First Star League including Periphery nations, 500 light years from Terra. This fell apart again after 200 years, leading to a ForeverWar that ran at least 400 years and is the game's main setting.

* This is one of the main points of the paradise-like Third Earth of DJ [=MacHale=]'s ''Literature/{{Pendragon}}''.

* In the ''Literature/CoDominium'', the eponymous organization controlled all of Earth and its fledgling extrasolar colonies. Unfortunately, the two controlling factions - the USA [[TheGreatPoliticsMessUp and the USSR]] - still hated each others guts, and after a few decades of iron-fisted peace [[HomeworldEvacuation and massed off-planet deportation]], the [=CoDom=] collapsed overnight in a global thermonuclear war. Two Empires of Man followed, the first of which collapsed due to internal revolt, leading the second to be far more... ''assertive'' with its territories.

* ''Film/StarTrekIntoDarkness'' subverts this. While the Earth is united, there remains cultural and national diversity, with at least some present-day countries apparently surviving into the 2250s in some form. The Union Jack is still shown flying in London, suggesting that the UK made it as well, while in a bar scene involving Kirk, what looks like an American flag appears to be in the background. However, this may be in line with some [=TNG=] material which references a starship being built in [[TheGreatPoliticsMessUp the Soviet Union]]; old Earth countries still exist, but are subsumed into a federal United Earth government.

* In the contemporary Literature/TakeshiKovacs novels by Richard Morgan, a U.N Protectorate maintains its rule over the Earth colonies by propaganda, military force and subtle corruption.

* ''[[Anime/MobileSuitGundamSeed Gundam SEED]]'' frequently refers to the Earth as though it were one political entity, but this isn't the case. It is in fact divided into seven or eight supranational blocs, as well as the Orb Union, a small but powerful south Pacific island country. Most of them are united in a military alliance under the Atlantic Federation, which is hostile to the space nation of ZAFT. However, a couple of nations on Earth support ZAFT, most notably the Oceania Union (Australia + New Zealand), which lends ZAFT the use of a large naval base at Carpenteria, and a few others remain stubbornly neutral in the whole affair, including Orb.

If the species in question is humanity, there may be more diversity involved, if only because the writers don't need to ''invent'' it all. The aliens may also look the same. See DittoAliens. See also {{Planetville}} and PlanetaryNation when this applies to non-human species.

* The United Nations fulfilled this function (in ''Literature/RocketshipGalileo'' by Creator/RobertAHeinlein peace is enforced by the guided rockets of the U.N. World Patrol, while ''Literature/TheGanymedeTakeover'' by Creator/PhilipKDick and Ray Nelson makes reference to the U.N. Army fighting the AlienInvasion) before they became synonymous with corruption, indecision and inefficiency. Of course, that in itself can be a useful trope, as seen in the contemporary Literature/TakeshiKovacs novels by Richard Morgan, where a U.N Protectorate maintains its rule over the Earth colonies by propaganda, military force and subtle corruption.

* This is the goal of ''VideoGame/DeusEx'''s Evil CEO and BigBad, Bob Page. By buying influence with money or blackmailing with a critical vaccine, he can have his choice of appointees in any government agency in the world, and have the legislation drafted to give them authority to declare and maintain martial law. He gradually stages legal coups to make the transfer of authority to a U.N. enforcement agency permanent, consolidating control of all governments.
** This is Deconstructed; since his influence outgrew its natural boundaries, he effectively sabotaged every contingency plan the Illuminati used to defend themselves against failure, which meant that his giant conspiracy was still a house of cards. Then, as the one person in charge, he pooled all his resources into an AI so he could merge with it and develop super-intelligence to run the whole thing. The AI promptly went rogue from lack of confidence in a deluded megalomaniac, and concluded the only way to truly implement a one-world order is if everyone was involved in ruling it - whether they want to or not.

** Although a lot of 21st century countries (America, Mexico, Jamaica, China, etc.) somehow still exist as culturally distinct regions.

* {{Lampshade|Hanging}}d in ''Series/AlienNation'' when Sykes is surprised his Tenctonese lady friend follows a more "Eastern" religion, then admits it's stupid to think an entire race of people would only follow one belief system.

* Earthgov in the Zero Hour version of ''ComicBook/{{Legion Of Super-Heroes}}'' is like this, with a little PresidentEvil (President Thawne) and SecretPolice (the Science Police) thrown in for spice. The United Planets in general might qualify, but they're more TheFederation.

* Throughout the fanon and canon series, the universe of My Little Pony, Friendship is Magic has dozens of races ruled by separate leaders. However, after Dante's actions in ''Fanfic/AncientSins'', all the different races unite to form a single world order, led by a concil of representivitves. Even the human world gets in one this, with portals maintianed so they can enter and exit the Equrstian world whenever the wish.