As the Federation's mobile suit production becomes more widely known, Zeon deploys Zimmad's EMS-10 Zudah, assigning four suits to the 603rd Technical Evaluation Unit.
The Principality touts the Zudah's impressive performance as a show of military strength, but in reality, it is scarcely different to the failed EMS-04 that was trialled in 0075.
Colonel M'Quve and his colleagues finish drafting the United Maintenance Plan, which is immediately adopted by the Principality. The creation of universal mobile suit components begins, and production lines are altered to accommodate them.
In addition, Zeon's weapons manufacturers begin developing improved variants of their mobile suits that to adhere to the Plan from the design stage.
Zeon deploys the MSM-03 Gogg for the first time. It is a fully amphibious design created by Zimmad to replace Zeonic's failed Zaku Marine Type. Produced at California Base, it is initially fielded to the Mediterranean and Gulf of Mexico.
The Gogg is the first Zeon mobile suit armed with beam weapons: the two mega particle cannons mounted in its large torso are cooled by seawater, solving an overheating problem faced by the Principality's weapons engineers for months.
To counter the Federation's rumoured V Project, Zeon accelerates the development of new mobile suits, already long in-progress.
Although Zeonic began testing their YMS-07A Prototype Gouf as early as January, its troubled production allows Zimmad to beat them to the punch – after field testing a pair of YMS-09 Prototype Doms at California Base, they roll out the completed MS-09 Dom.
Anticipating that the Federation might fully drive them from Earth after Odessa, the Principality orders Zimmad to convert their Dom assembly lines to produce a space-use variant, the MS-09R Rick Dom.
The Rick Dom is cheaper and easier to produce than its competition at Zeonic, and Zeon intends to replace the obsolete Zaku 2 with the Rick Dom going forward.
The following is a master post of events leading directly to the start of the One Year War, particularly the rapid development of new weapons by the Republic of Zeon.
UC 0074
The EFSF convert their vessels' main armaments from shell-firing cannons to mega particle cannons.
In February, Zeonic complete the MS-04 Prototype Zaku.
December, UC 0074
The first Jupiter Energy Fleet returns to the Republic of Zeon, rendering the nation energy independent from the Earth Federation.
Zimmad submits the design of their EMS-04 Zudah to Zeon’s military.
Zeonic completes the first prototype YMS-05 Zaku, later renumbered MS-05A.
UC 0075
Zeonic’s Zaku and Zimmad’s Zudah are trialled against each other to determine which will be adopted as the Zeon military’s mainline mobile suit. The Zaku underperforms compared to the impressive Zudah, but the Zudah’s reactor overheats and explodes, destroying the mobile suit. The Zaku is chosen for its reliability and lower production cost.
In May, Zeonic rolls out the MS-05B Zaku 1, Zeon’s first combat-ready mobile suit.
In July, Zeon commissions the Musai-class space cruiser, the first warship in history designed to carry mobile suits.
UC 0076
In March, Zeon commissions the Gwazine-class battleship, a command ship for their highest-ranking officers.
In April, Zeon begins mass-producing the MS-05B Zaku 1 after widely expanding their mobile suit factories.
In May, Colonel Kycilia Zabi creates the Mobile Training Battalion to train mobile suit pilots and establish mobile suit tactics.
In December, Zeon begins development of specialized mobile suit variants, especially for terrestrial and maritime warfare. A high-performance "R-type" Zaku is also proposed.
UC 0077
In April, the Riah Revolution occurs at Side 6. Zeon military backs the nationalist faction, sending a squad of Zakus to blockade the EFF, helping to secure the revolution’s victory. Side 6 declares independence from the Earth Federation as the Riah Republic.
In August, Zeonic rolls out the MS-06A Zaku 2. Its performance is greatly improved over the Zaku 1, but Kycilia Zabi orders it redesigned to be better equipped for melee combat, expecting that the Federation will eventually develop their own mobile suits.
In September, per Kycilia's orders, Zeonic rolls out the MS-06C Zaku 2.
UC 0078
In January, Zeon begins mass-producing the Zaku 2 C-type, replacing the Zaku 1 as its military mainstay.
In February, the EFF's SCV-X project begins construction of SCV-27A, a carrier for the FF-S3 Saberfish fighter.
In March, the EFF commence the RX Project, though the Federation at large dismisses the threat of Zeon's humanoid weapons and remains skeptical about developing their own.
In September, Zeonic rolls out the MS-06F Zaku 2. This version lacks its predecessor's heavy radiation shielding, making it lighter and in turn granting it better performance. The commander-use S-type is later developed, based on the nimble F-type.
In October, as part of Zeon's preparation for a possible Earth invasion, Zeonic rolls out the MS-06J Zaku 2. It is closely based on the F-type, but lacks rocket thrusters to further reduce its weight.
On October 24, the government of Side 3 rechristens itself as the Principality of Zeon and declares independence from the Earth Federation.
In November, the Principality of Zeon begins national mobilization. Supreme Commander Gihren Zabi divides the military into the Space Attack Force, under Vice Admiral Dozle Zabi, and the Mobile Assault Force, under Vice Admiral Kycilia Zabi.
In December, the Principality of Zeon begins the lengthy production of the Dolos-class, a trio of massive warships capable of carrying a staggering 182 mobile suits.
Reasons the Zimmad Company company was ahead of its time.
The micro missiles in the Gyan’s shield would fuck up bits, even if the pilot isn’t a newtype mass numbers ensure something will hit- and bits usually aren’t heavily armored so the lack of stopping power isn’t an issue.
Replace the useless Zudah legs with a Bawoo Nutter style escape mechanism (and make the top half the autonomous one), and the “explosion” downside becomes a feature.