OVERVIEW: Delta Force (1st Special Forces Operational Detachment–Delta, 1st SFOD‑D) is a Tier‑One U.S. Army special missions unit under JSOC, specializing in counter‑terrorism, hostage rescue, direct action, and covert reconnaissance.

DETAILS: Formally established on 19 November 1977 by Colonel Charles Beckwith and Colonel Thomas Henry, Delta Force was modeled on the British SAS. It comprises assault squadrons (A-D), an aviation squadron (E), a clandestine squadron (G), plus support and training elements. Operators numbering around 250–300 of ~1,000 personnel are selected primarily from the Rangers and Green Berets through a classified selection and a six‑month Operator Training Course. The unit operates globally in high-risk, time-sensitive missions closely coordinated with CIA, JSOC aviation, and SOF support elements.

FUNCTION: Delta Force conducts highly sensitive operations including counter-terrorism raids, hostage rescues, direct-action strikes, and intelligence reconnaissance. It employs advanced tactical insertion (airborne, helicopter, ground), integrated signals, cyber, and medical support, executing missions based on near‑real‑time intelligence and precision planning.

NOTE:
IOC: 19 November 1977
Operators: United States (JSOC/USASOC)
Structure: A–D (assault squadrons), E (aviation), G (clandestine), support, selection & training, combat development
Base: Fort Liberty, North Carolina
Conflict used in: Operation Eagle Claw (1980), Panama (1989), Gulf War (1991), Mogadishu (1993), Afghanistan (2001+), Iraq (2003+), Syria (2015+), raid on Abu Bakr al‑Baghdadi’s compound (2019)

SOURCE: Britannica: https://www.britannica.com/topic/Delta-Force ; Wikipedia: https://en.wikipedia.org/wiki/Delta_Force ; SOFREP: https://sofrep.com/specialoperations/delta-force-the-complete-guide ; AmericanSpecialOps.com: https://www.americanspecialops.com/delta-force ; National Interest: https://nationalinterest.org/blog/buzz/unstoppable-delta-force-very-best-special-forces-unit-planet-earth-207520