Side 3

Side 3 is located behind the moon, at L2, and is known as Munzo. Side 3 was the only Side to never use the "open-type" colonies. They instead used "closed-type" colonies, which removed the glass "sky" panels and was a completely "solid" cylinder with no open view to space. This allowed each colony to house greater capacities of people.

In UC 0052, Zeon Zum Diekin moved to Side 3 and began to spread his philosophy of Contolism - essentially that the earth was sacred, and that human beings had a solem right to protect it. This philosophy also encouraged the people of the space colonies to considered themselves independent from earth. In UC 0058, under the guidance of Zeon Zum Diekin, Side 3 declared independence from the Earth Federation and fored the Republic of Zeon. In UC 0068, Deikin died under mysterious circumstances, and Degwin Zabi took control of the Republic of Zeon.

Under Degwin's leadership, the Republic of Zeon became a dictatorship, and the National Gaurd regiments Side 3 maintained became of full fledged army. On August 15, UC 0069, Degwin announced the formation of the Principality of Zeon, setting himself up as the ruler and giving his four children unilateral control of the military forces. Simultanious with this announcement cam severe purges of the remaining followers of Zeon Zum Deikin living in Side 3. Between UC 0069 and UC 0078 the Pricipality of Zeon began mass producing various warships and mobile suits in anticipation of an armed conflict with the Federation.

After the One Year War Side 3 came under the control of the Prime Minister, who sued for peace. The prime minister and the Federation reached an agreement whereby the Principality of Zeon would surrenders, and Side 3 would be allowed to maintain its independence under its previous title, the Republic of Zeon. The deal also allowed the Republic to maintain an armed force which would be sunject to periodic inspections by the Federation. Allow the agreement formally ended the war many Principality supports rejected the offer, and choose instead to go into hiding.

Side 3 recieved additional space colonies in 0082 and again in 0083 as part of the Colony Reclamation Project, which sought to ease the overcrowding of Side 3. Side 3 remained the Republic of Zeon until they rejoined the Federation in UC 0100.