Central Intelligence Agency (CIA) Special Activities Division (SAD) Special Operations Group (SOG).

Special Operations Group (SOG) is the department within SAD responsible for operations that include the collection of intelligence in hostile countries and regions, and all high threat military or intelligence operations with which the U.S. government does not wish to be overtly associated. As such, members of the unit (called Paramilitary Operations Officers and Specialized Skills Officers) normally do not carry any objects or clothing (e.g., military uniforms) that would associate them with the United States government. If they are compromised during a mission, the United States government may deny all knowledge.

SOG is generally considered the most secretive special operations force in the United States. The group selects operatives from other tier one special mission units such as Delta Force, DEVGRU and ISA, as well as other United States special operations forces, such as USNSWC, MARSOC, Special Forces, SEALs and 24th STS.