
During the construction of the space colonies, mankind advanced towards the Asteroid belt, Jupiter, and built cities on Mars. Amidst the transition to the Universal Century which began with the immigration to the space colonies, the Mars cities also developed Side A "Arcadia", which would become forgotten by the developing Earth Sphere.
Arcadia became a place for those who no longer had a place on Earth and became a kind of autonomous nation out of reach of the Earth Federation government and Federation Forces. After the end of the One Year War in U.C. 0079, the Kycilia loyalists faction of the Zeon remnants organized on Mars and conquered Arcadia. They were later renamed Zeon Mars, and with cooperation from Axis, they effectively controlled Mars with military might and the industrial power of the Mars plant.
However, after the end of the Delaz Conflict in U.C. 0083, remnants of the Gihren loyalists faction led by Omega established themselves on Mars and were named ReZeon. They employed guerrilla warfare to challenge Zeon Mars' dominance in Mars.
Following the end of the Gryps War in February of U.C. 0088, captain Tristan led a faction of Titans remnants (also known as Tristellar) which merged with Axis forces and escaped to Mars, bringing the TR Series plans and " Inle's Wings " with them. The Titans remnants joined ReZeon under the leadership of Alicia, who claimed to be a successor of the Zabis. Using "Inle's Wings", Zeon Mars ultimately fell into ruin with Alicia declaring the founding of the nation of ReZeon. The citizens of Arcadia who suffered under the tyranny of Zeon Mars graciously accepted the new ReZeon leadership.
Every catalogued mobile suit appearing in Advance of Zeta Re-Boot: Gundam Inle. Each link opens the unit's interactive development tree.
Browse more shows on the full list of Gundam series, or return to the interactive mobile suit evolution tree.