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.
National Counter Terrorism Security Office National Counter Terrorism Security Office The National Counter Terrorism Security Office (NaCTSO) is a police unit. It is funded by, and reports to, the Home Office, which advises the British government on its counter-terrorism strategy. The National Counter Terrorism Security Office supports the protection of the United Kingdom's crowded spaces, hazardous and potentially vulnerable or at risk sites, as well as offering advice on a range of threats and dangerous substances. They work alongside the Centre for the Protection of National Infrastructure. The National Counter Terrorism Security Office is also responsible for running National Counter Terrorism Security Advisers (CTSA's) network.