Delta Force Delta Force 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.
Counter Terrorism Command the National Counter Terrorism Network which consists of five Counter Terrorism Units (CTUs) and smaller regional units. It is overseen by the counter-terrorism coordination committee, chaired by Assistant Commissioner Neil Basu of the Metropolitan Police Service. As part of its role in the National Counter Terrorism Network, SO15 operate against the threat of terrorism at a local, national, and international level and engages with a range of partners to prevent terrorist related activity, including the Security Service (MI5) and Secret Intelligence Service (MI6). The first counter terrorist unit at Scotland Yard was commissioned in 1883 by the then Home Secretary