Delta Force—officially the 1st Special Forces Operational Detachment–Delta (1st SFOD-D) and often referred to as the Combat Applications Group (CAG)—is a Tier 1 special missions unit under the Joint Special Operations Command (JSOC). Tasked with high-stakes counterterrorism, hostage rescue, and direct action, it represents a cornerstone of U.S. special operations. While the unit primarily recruits from the 75th Ranger Regiment and Army Special Forces, its rigorous selection process remains open to elite candidates from all military branches.

USASOC's shoulder sleeve insignia worn by Delta operators, depicting the historical Fairbairn–Sykes fighting knife inside the outline of an arrowhead

History

Established in 1977, Delta Force was born from the rising tide of global terrorism. The unit was the brainchild of Colonel Charles Beckwith, who—inspired by his service with the British SAS—envisioned a versatile "doer" unit capable of direct action, a departure from the traditional "teacher" role of the Army Special Forces. Despite initial institutional pushback, Beckwith secured a 24-month window to meticulously build the unit according to SAS benchmarks.

Delta Force was officially activated on November 19, 1977. While it took shape, a temporary unit known as "Blue Light" bridged the capability gap. By early 1978, Delta began its legendary selection process, pushing volunteers to their breaking points through grueling land navigation. The unit was certified as mission-ready in late 1979—just as the Iran Hostage Crisis began.

Delta’s first major test, Operation Eagle Claw, ended in tragedy in April 1980. Hampered by mechanical failures, desert storms, and a fatal mid-air collision, the mission was aborted. However, this failure became a catalyst for change. To prevent future disasters, the U.S. military overhauled its special operations, leading to the creation of the 160th SOAR (Night Stalkers), SEAL Team Six, and the Joint Special Operations Command (JSOC).

Delta Force's founder Charles Beckwith in 1980

Organization and structure

Administratively overseen by U.S. Army Special Operations Command (USASOC) but operationally controlled by JSOC, Delta Force is a highly classified unit headquartered at Fort Bragg. Its structure is modeled after the British SAS, consisting of several hundred elite operators supported by an extensive network of combat and service specialists.

The unit is organized into several core operational squadrons:

• Sabre Squadrons (Assault): A, B, C (est. 1990), and D (est. 2006).

• G Squadron: Specialized in Advanced Force Operations (AFO), formerly the Operational Support Troop.

• E Squadron: The unit’s aviation element (est. 1989), stationed at Fort Eustis and known as the Aviation Technology Office (formerly SeaSpray).

• Specialized Support: Including Signal, Combat Support (est. 2005), Combat Development, and Selection & Training.

Each Sabre Squadron is commanded by a lieutenant colonel and comprises three troops: two for assault and one for reconnaissance. These troops, led by a captain or major, are further subdivided into autonomous five-to-six-man teams directed by senior non-commissioned officers.

Delta Force bodyguards in civilian clothing providing close protection to General Norman Schwarzkopf during the Gulf War, 1991