Mobile Suit Gundam: The One Year War & How It Defines The U.C. Timeline

gamerant.com:

The Universal Century (U.C) timeline is the main storyline of the Mobile Suit Gundam franchise. It consists of a vast number of anime series and movies detailing different parts of the war between the Earth Federation against the Principality of Zeon. The most influential events within the U.C. timeline is the One-Year war. It is a bloody war that happened right after the foundation of the Principality of Zeon.

The story of the one-year war is told mainly in the original 1979 Mobile Suit Gundam, but you can also see various events of the war in the Mobile Suit Gundam: The 08th MS Team, Mobile Suit Gundam 0080: War in The Pocket, Mobile Suit Gundam MS IGLOO, the later-half of Mobile Suit Gundam: The Origin, and the first-half of Mobile Suit Gundam Thunderbolt.

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In the world of Gundam, there are numerous space colonies with thousands of people living inside each of them that are still within the jurisdiction of the Earth Federation. However, the Earth Federation begins to systematically turn their back on the people of the colonies and treat them like second-class citizens.

One colony, in particular, the Side 3, decided that they have enough. They demand independence from the Federation, and they rally behind a man named Zeon Zum Deikun. Unfortunately, not long after Side 3 declared their independence, Deikun fell ill and died.

That is when the Zabi family took over and named their newly created country “The Principality of Zeon”, and appointed the leader of the Zabi family, Degwin Zabi, as the leader of the Zeon.

The Zabi family concluded that if they truly want to be free from the Federation influence, which still refuses to accept Zeon’s