Universal Century, October 0079. Kurt Blatt volunteered for the Principality of Zeon forces and with the sergeant Alexei were assigned to the engineering battalion. They believed that Zeon would win but have just been through the Battle Of Odessa. (Source: Gundam Wikia)

The Mobile Suit Gundam Thunderbolt Gaiden manga is a collection of short stories focusing on different mobile suits that appear in Hobby Japan's Thunderbolt Mechanics magazine.

An explosive new serialization! A new story that differs from the movie and novel comes alive! The destination of the Newtype myth! The curtain rises on a never seen before story of Gundam Narrative from the tag team of Harutoshi Fukui and Kouzoh Ohmori!! (Source: Zeonic Republic)

The prequel manga is based on the Sengo no Sensou (The Postwar War) short story that appears in the 11th volume of Harutoshi Fukui's original Mobile Suit Gundam UC novels. The story centers on the Neo Zeon remnants' hijacking of the Sinanju Stein mobile suit. (Source: Anime News Network, edited)

In Universal Century 0112, there was the Fastest Formula. They wielded the ultimate, general-purpose weapon: the F90. Seven years following the Mufti Uprising, in the surging wave of mobile suit miniaturization, there was a team operating behind the scenes. These are the records of its various operations.

A Gundam Memorial from the point of view of Bright Noah, a man who has watched numerous Gundam pilots and Newtypes! What did Bright feel when he saw Amuro, Kamille, and Judau?

A new Zeon unit is formed to break the deadlock in which the Principality of Zeon is with the Earth Federation during the One Year War. The commander of which is a left handed former soccer player from Side 3.

In 1981, Osamu was obsessed with the popular "Gundam" series. One day, he stealthily takes his older brother's Gundam plastic models and, while playing with them, hears a mysterious voice call out to him. The person in question was Amuro Ray himself who appeared as he was in the anime...!?? (Source: Kadokawa, translated)

The Axis, which was supposed to have been struck by Camille, is still alive! Our new hero, Judau Ashta, gets into the super mobile suit "ZZ Gundam" and fights against them!

A prequel to Kidou Senshi Gundam Valpurgis

Universal Century 0079. The One Year War, which started with the Principality of Zeon's declaration of war, took the largest toll in human history. Their first step, in particular, was a colony drop, which brought unprecedented damage to the Earth and in an instant, resulted in the death of half of mankind. This story depicts the road to recovery of a ravaged land, the hardest hit area of Australia: Ground Zero for the colony drop. *Includes chapter 0.*

It is the year After Colony 195, and war between the Space Colonies and Earth has begun. To give the colonies an edge, they send 5 young soldiers, trained to perfection, to earth in the most powerful of Mobile Suits-Gundams. With their arrival, the tide of the war changes as they battle against the Earth forces and the Colonies of their origin. (Source: Anime News Network)