Midnight Base

Interstellar Era
Midnight Base was the final of the three Core Citadels, as well as the third to be constructed by the ADJM. It was heavily armed as to fend off the Celestial Strider threats on its own, with a focus on creating a larger self-sustaining army compared to Guardia 7. It featured enough storerooms to fuel several Solar Cannons on its own. Along with this, it featured twice as many hangars than the usual six, and several sub-hangars for entire platoons of Garrisai. With this incredible amount of firepower in combating Celestial Striders, it scored a number of kills during the course of the Interstellar Era.

Pre-Uprising Era
Midnight Base was relatively dormant during the first Armeli Invasion, though by the time Project X began it had been relegated in helping test some of its Units. During the Fall of the NDRC, the continuous losses taken by the LCDM forced all available resources from the Citadels outside of the main battle to be relegated to the front lines. This left Midnight Base almost completely abandoned, which only aided the Mercury Legion in capturing the base. It would then become the main military headquarters of the faction, while Dragon’s Keep (The Legion's first Citadel) was relegated to more administrative purposes.

Uprising Era
By the events of Harbinger LEGACY, Midnight Base had become even more powerful in armaments, being controlled by Legion Second-In Command Daniel Sherman. It would serve as the main source of their army in combating the UNI and LCR. Its is infamously known for being the site of the Battle of Midnight Base.

Trivia
- Midnight Base's story arc and relative design is reminiscent to Torrington Base of Gundam Unicorn and subsequently, the Battle of Torrington Base.

- Its actual design is based off of the Cassiopeia Citadel from the first drafts of Harbinger 2584. It, alongside Fort Hummingbird, are the only citadels to retain the same design, overseers, location, and controlling faction since these first drafts.