The Army continued to exist until 127 ABY during the traumatic Sith–Imperial War which saw the Galactic Alliance's defeat by the Fel Empire and their One Sith allies. The Galactic Alliance Army was mostly disbanded following its surrender, although some units were absorbed by the Imperial Army. However, a small contingent continued to exist within the Galactic Alliance Core Fleet, under the command of Admiral Gar Stazi, where they conducted hit-and-run attacks similar to those employed by the Alliance to Restore the Republic.
- Special Forces
- Page's Commandos
- Strike troops
- Stomper Brigade
- Orange Panthacs
- Tralus Ground Occupation Forces
- Galactic Alliance Guard
- Galactic Alliance Infantry Trooper
- Galactic Alliance Infantry Scout
- Galactic Alliance Marines
- Void Jumpers
- Space Rangers
- Venom Assault Trooper
- Galactic Alliance Core Fleet Commando