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.
Immediate Action Unit tasked with responding to internal emergencies of great concern to the national government. Its name changes frequently and may no longer be used at this time of writing. A similar unit fulfilling its counter-terrorism role is the Snow Leopard Commando Unit. Immediate Action Unit The Immediate Action Unit (IAU) is the premier counter-terrorism unit of the People's Republic of China. Little is known about the Immediate Action Unit except that it is an elite People's Armed Police tactical unit rather than being drawn from the People's Liberation Army. In comparison to the Special Police Units which are the police tactical