The Principality of Zeon is the creation of the cunning and ambitious Degwin Sodo Zabi.
In August of UC 0069 - a year after the death of the republic's founder - Zum Deikun.
The Deikun's successor, Degwin proclaims Side 3 the Principality of
Zeon and installs himself as sovereign, ruthlessly purging the Deikun loyalists.
Under Degwin Sodo Zabi's leadership, the Principality of Zeon begins preparing itself for a military confrontation with the Federation.
Degwin's children are then appointed as the commanders of the Zeon military, supervising the development and deployment
of advanced new weapons such as mobile suits. In October of UC 0078, the Zeon military is split into two branches, both reporting to Admiral Gihren Zabi.
The Space Attack Force, commanded by Lieutenant General Dozle Zabi, emphasizes traditional manuever warfare tactics in his deployment of mobile forces.
The Mobile Assault Force, led by Major General Kycilia Zabi, specializes in unconventional activities such as intelligence-gathering,
resource mining, and newtype research; its subdivisions include the 7th Division, the 1st Mobile Infantry Division, and the Zeon royal guard.
In February of UC 0079 a third branch, the Earth Attack Force, is created to carry out the upcoming Earth invasion.
Kycilia's 1st Mobile Infantry Division is reorganized into this independent force,
commanded by Colonel Garma Zabi, and its ranks expanded into five Mobile Infantry Divisions trained and equipped for the terrestrial Assult on earth.
By April of UC 0079, the Earth Attack Force has overrun much of Earth's surface.
Its principal strongholds include the captured California Base;
Zeon's main terrestrial production facility, Odessa,
where Colonel M'quve supervises an immense mining operation;
and New York, from where Garma Zabi commands the Earth Attack Force.
In May, the asteroid fortress Solomon is completed;
located near the rubble of Side 1, this base serves as the frontline headquarters of the Space Attack Force.
The Mobile Assault Force is based at the lunar city of Granada, where most of Zeon's space mobile suits are produced.
The asteroid fortress A Baoa Qu, completed in June, completes the Principality of Zeon's last line of defense.
Located near Side 3 behind the "dark side" of the moon, A Baoa Qu not only hosts a couple of Space Attack Force's fleets,
but also houses its own factories for the production of mobile suits.