The 1st Special Forces Operational Detachment-Delta (1st SFOD-D) — commonly known as Delta in the U.S. Army, Delta Force by civilians, and Combat Applications Group by the Department of Defense — is a Special Operations Force (SOF) and an integral element of the Joint Special Operations Command (JSOC).

Delta Force's primary tasks are counter-terrorism, counter-insurgency and national intervention operations, although it is an extremely versatile group capable of assuming many missions, including, but not limited to, rescuing hostages, raids, and eliminating covert enemy forces. Delta Force conducts missions similar to those attributed to the British Special Air Service (SAS), on which it was originally modeled.

Source Elite Combat Units