United Nations of Earth and Her Colonies (EZ1239)

“We the people of the Unified Earth Government are capable of rebuilding our colonies with the help of the, other members of the United Sol Alliance and the Galactic Republic, not the New Sith Empire and their Insurrectionist allies, who I think are a direct threat to our security, our liberty, and our freedom."

“The UNSC Infinity has found the Master Chief, I have order the crew of our pride n' joy to bring our hero home, and they'll succeed in doing the job.”

Ruth Charet's second inaugural speech to all UEG citizens after being reelected for her second term, circa May 12th, 2557.

The Unified Earth Government (abbreviated as UEG) is the central government of humanity. Formed on 3/8/2170 now known as Founding Day

Background
The UEG is a Joint Federal-Democratic Republic.

Cities on Earth
New York City-18,890,456,237

Mombasa City-17,278,360,120 (rebuilt by 2557)

Tokyo-16,120,345,780,810

Los Angeles-15,747,808,621

New Phoenix-14,101,343,900

Sioux Falls-13,596,248,082

Overall Population: 26,000,000,000 Terrans (2557 estimate)

Cities on Reach
New Charlotte-17,405,238,120

New Alexandria-16,236,890,168

New Little Rock-15,136,996,340

New Manassas-14,208,560,101

New Sioux City-13,810,532,440

Overall Population: 20,000,000,000 (2557 estimate, recolonized by 2557)

United Republic of North America (URNA)
The URNA was formed on December 30th, 2016 with the Treaty of Chicago between the countries of North and Central America, including the recently formed United Provinces of Canada (UPC), the 774 year old United States of America (USA), the United Mexican Republic (UMR or also known as United Mexican States), the United Republic of Panama (URP), and many other North and Central American nations. It was one of the founding members and world superpowers of the Unified Earth Government and still has a seat in the UN and the UEG Terran Nation Council.

United South American Alliance (USAA)
The USAA was formed during the Third World War and fought beside the UN, the alliance was formed by the signing of the Treaty of Rio de Janeiro between various South American countries including United Republic of Brazil (URB), the Unified Argentinean Republic (UAR), the United Republic of Peru (URP), United Republic of Chile, and the other South American nations. It was one of the world superpowers that founded the UEG.

Sol System
The Sol System is humanity home system and consists of the following planets: Earth: Earth is humanity's home world and the UEG Capital, the planet is also the UNSC's #1 fortress world.
 * Earth (United Republic of Earth and Luna)
 * Luna (United Republic of Earth and Luna)
 * Mars (United Republic of Mars)
 * Phobos (prison colony)
 * Deimos (prison colony)
 * Jovian Moons (United Federation of the Jovian Moons)
 * Titan (United Republic of Titan)

UEG Inner Colonies (around to 512 colonies)
Sol Sector Minister Sector Miridem Sector Venezia Sector
 * Epsilon Eridani system
 * Reach (United Republic of Reach)
 * Tribute (United Republic of Tribute)
 * Beta Gabriel (United Republic of Beta Gabriel)
 * Circumstance (United Republic of Circumstance)
 * Tantalus (United Republic of Tantalus)
 * Epsilon Eridani IV
 * Cygnus System
 * Cygnus
 * Trio Moons
 * New Jerusalem
 * Cygnus Moons
 * Sigma Octancus System
 * Sigma Octancus IV
 * New Earth
 * New Luna
 * Hope System
 * Hope
 * Hades
 * Minister System
 * Miridem System
 * Miridem
 * Miri
 * New Devon
 * New Devon Moons
 * Alpha Taurius System
 * Alpha Taurius II
 * The A. Taurius II Moons
 * Atlas System
 * Atlas
 * The Atlas Moons
 * Venezia System
 * Venezia
 * The Venezian Moons
 * Chi Rho System
 * Chi Rho
 * The Chi Moons

UEG Outer Colonies (around to 408 colonies)
Beta Taurius Sector Eridanus Sector Epsilon Taurius Sector Gamma Taurius Sector
 * Beta Taurius System
 * Beta Taurius II
 * The B. Taurius II Moons
 * New Mars
 * New Phobos
 * New Deimos
 * New Reach
 * New Venus
 * New Vena
 * Taradia System
 * New Tarawa System
 * Far Isle System
 * Jericho VII
 * Eridanus System
 * Eridanus II
 * Eheild
 * Eridanus Secundus
 * Mamore System
 * Mamore
 * New Commoner System
 * New Eridanus System
 * New Eridanus
 * New Eheild
 * New Far Isle System
 * New Prussia System
 * Epsilon Taurius System
 * Gamma Taurius System
 * Circinius System
 * Circinius IV
 * Chi Ceti System
 * Chi Ceti
 * Bliss System
 * Bliss
 * Green Hills System
 * Epsilon Indi System
 * Harvest
 * Epsilon Iota System
 * New Harvest

Trivia

 * The UEG Government is a joint federal and democratic government.
 * Mid-Western city of Sioux Falls, SD being a mega city comes from the author being from the city.
 * UECA/UECMA is the replacement for the CAA/CMA.
 * The UN still exists and runs all governments on Earth.