Delta Force (1st Special Forces Operational Detachment- Delta) are first featured in Ace Combat: Assault Horizon, where they are frequently portrayed as working alongside the 108th Task Force's Nomad Squadron. The unit is first introduced in mission 03, "Red Moon", where they undertake a rescue operation to rescue Major Illich, a Russian Air Force pilot held hostage by the SRN in a rebel hideout somewhere in East Africa.
1st Special Forces Operational Detachment-Delta (1st SFOD-D) is one of the United States' secretive Tier One counter-terrorism and Special Mission Units. Commonly known as Delta, or Delta Force, it was formed under the designation 1st SFOD-D, and is officially referred to by the Department of Defense as Combat Applications Group. This unit is an elite Special Operations Force, and an Army Compartmented Element of the Joint Special Operations Command. Delta Force, along with its Navy counterpart DEVGRU, are the United States' primary counter-terrorism units.
- Bravo 1
- Bravo 2
- Bravo 3
- Bravo 4
- Bravo 5
- Bravo 8
- William Bishop incorrectly refers to them as 'PJs' during the game. 'PJ' stands for Pararescue Jumper, a term referring to Pararescuemen of the USAF Pararescue, an elite unit tasked with recovery and medical treatment of personnel in humanitarian and combat environments.