Technology & Combat Characteristics
A state-of-the-art machine adopted by the Earth Federation Forces as its main force mobile suit, the RGM-89 Jegan comes from the lineage of the RGM-79 GM as inferred by its "RGM" model number. However, it was not developed by the Earth Federation Forces' own engineers like most previous RGM series mobile suit. Instead, it was produced and supplied by Anaheim Electronics (AE). Created through combining the Earth Federation Forces' expertise of the GM series with AE's MS development technologies, the Jegan's performance is significantly higher than the RGM-86R GM III. It also has improved productivity due to the use of Titanium Alloy Ceramic Composite armor, as well as high operability, and excellent versatility. All these allows it to become the "next-generation standard MS", and it operated as the main force MS for a long period of time.
History
The Second Neo Zeon War in U.C. 0093 was the first major engagement in which the Jegan was deployed. There were less than 100 Jegans at that time, which were mainly used by the Londo Bell taskforce and the Luna II garrison, as the machine was still in its early stages of deployment. Despite this, Londo Bell's Jegans played a pivotal role in the conflict. After the conflict, the Jegan became the mainstay mobile suit of the Federation Forces.