The 1st Special Forces Operational Detachment - Delta (1st SFOD - D), commonly referred to as Delta Force, Combat Applications Group (CAG), "The Unit '', Army Compartmented Element (ACE), or within JSOC as Task Force Green, is an elite special mission unit of the United States Army, under operational control of the Joint Special Operations Command. The unit is tasked with specialized missions primarily involving hostage rescue and counter-terrorism, as well as direct action and special reconnaissance against high - value targets. Delta Force and its maritime counterpart, the U.S. Navy 's SEAL Team Six (also known as DEVGRU), are the U.S. military 's primary counterterrorism units. Delta Force and DEVGRU perform the most complex, classified, and dangerous missions in the U.S. military, as directed by the U.S. National Command Authority.
what part of the military is delta force
an elite special mission unit of the United States Army, under operational control of the Joint Special Operations Command