Universal Century World
The Universal Century, named after humanity's first migration to the stars, aboard colonies called 'Sides', has a near 100 year history, and its development is overseen by the political and military ruling body, the Earth Federation. The Spacenoid Government, called the Principality of Zeon, has several Sides under its flag as well, and a tentative peace between both faction has been forged through almost 25 years of conflict.
The Current Year is UC 0097.
Earth Federation
The Federation is a global government that was formed by a 'rich mans' club' of wealthy nations. No individual nations are mentioned or continue to exist. Places are mentioned by what landmass or region they are in, such as New York City (or New Yark, according to on-screen text) and Odessa are mentioned to be located in North America and Central Asia, not the United States or Ukraine. While Japan, Australia, and Ireland are mentioned, these names refer to the landmasses and not the former countries. The only exception to this is the language and nationality of characters, which can be interpreted to be based on their predecessors' former homeland before emigrating to the space colonies.
Titans
The Titans were an elite counter-insurgency group formed by the Federation Council in response to the events of Operation Stardust in 0083, where the Federation lost the large part of its fleet to a nuclear attack perpetrated by Zeon loyalists. The Federation decided to form an elite unit of the Earth Federation Space Force whose sole purpose would be to hunt down renegade citizens who either supported the Zeon and their cause or spoke out against the Federation government.
New Desides
On January 29, U.C. 0088, A group of junior officers in the Titans Mobile Suit Instructor Corps stationed at the remote asteroid Pezun near Side 2 (L4) stage a rebellion led by Brave Cod against the AEUG allied command of the facility in order to further their own ambitions. In response to this action, the Earth Federation government forms Task Force Alpha, a small force of EFSF, AEUG, and Karaba veterans in order to deal with this issue. In order to assist the task force, the Federation assigned the MSA-0011 S Gundam to the task force to complete the operation before the rebellion begins to spread to other locations.