In the Mobile Suit Gundam metaverse, Jaburo is the headquarters of the Earth Federal Forces during the One Year War and the years after. It is a massive underground complex in the heart of Brazil. Because of its subterranean location, Jaburo is imprevious to conventional assault. Jaburo's exact location is also a strict Earth Federation secret, much like modern day Area 51.

Jaburo's cavernous reaches holds a decent size city itself, along with housing factories, spaceships docks, and many other types of facilities. The Federations early Mobile Suit factories are located in Jaburo, which during One Year War produced hundreds upon hundreds if not thousands of mobile suits, including several Gudams.

Jaburo had often been a target for the Zeon Military, however due to its unusual location; a frontal assault proved difficult. In the early weeks of the One Year War the Zeon began Operation British , attempting a space colony drop on Brazil in an attempt to destroy Jaburo. The attempt failed as the colony broke up over the Pacific Ocean and landed in Australia. After the failure of Operation British the Zeon realized the only way to take out Jaburo, was a frontal assault. Prior to Char Aznable's premptive strike, the Zeon had been working on an attack strategy, using multiple battalions of Mobile Suits and a super powerful Mobile Armor being designed in East Asia by Zeon scientist Ginias Sahalin. However, before these plans could be implemented, the war was turning in Federation favor, and the Mobile Armor project suffered major set backs, such as the creator going insane and killing the Apsalus Project team and taking the Mobile Armor for himself as seen in The 08th MS Team. The other major flaw of the stategy, was the fact that the Zeon ground forces could not confirm Jaburo's exact location.