Established in 1971, the United States Marshals Service (USMS) Special Operations Group (SOG) was formed as one of the first federal tactical units. Special Operations Group (SOG)is a flexible, modernized unit with a diverse skill set that conducts specialty operations in any environment and deploys to enhance the tactical capabilities of the Department of Justice (DOJ) and the U.S. Marshals Service both domestically and internationally. SOG's specialty operations span the range of federal law enforcement missions, such as supporting the apprehension of violent offenders, terrorist trials, high-threat prisoner movements, witness security operations, national emergencies, civil disorder, protection of at-risk health facilities and personnel, large scale seizures, actions against anti-government and militia groups, international stability and reconstruction efforts, and other missions as ordered by the U.S. Attorney General.