The Full Form of SOG is Special Operations Group.

The Special Activities Center (SAC) is a division of the Central Intelligence Agency responsible for covert operations and paramilitary operations. The unit was named Special Activities Division (SAD) prior to 2016. Within SAC there are two separate groups: SAC/SOG (Special Operations Group) for tactical paramilitary operations and SAC/PAG (Political Action Group) for covert political action.

The Special Operations Group (SOG) is a department within SAC responsible for operations that include clandestine or covert operations with which the U.S. government does not want to be overtly associated. As such, unit members, called Paramilitary Operations Officers and Specialized Skills Officers, do not typically wear uniform.

If they are compromised during a mission, the U.S. government may deny all knowledge. SOG is considered the most secretive special operations force with fewer than one hundred operatives. The group often selects former personnel from the U.S. Special Operations Forces such as Delta Force, Green Berets, Rangers, Force Reconnaissance, Raiders, SEALs, SARC, STOs, CCTs, CROs and PJs