Question: What is the slang term used to describe the agency that The Grupo de Operaciones Especiales  is a part of?

Context paragraphs:
Fuerza de Guerra Naval Especial: The Fuerza de Guerra Naval Especial -Special Naval Warfare Force- is the current special operations unit of the Spanish Navy.  It was created the 10th of June 2009, as the merge of different units of the Spanish Navy: the Unidad Especial de Buceadores de Combate (UEBC) -Special Combat Divers Unit-, the Unidad Especial de Desactivadores de Explosivos (UEDE) - Special Explosive Defusers Unit- from the Navy Diving Center, and the Unidad de Operaciones Especiales (UOE) -Special Operations Unit- from the Spanish Navy Marines.

Federal Police (Mexico): The Federal Police (Spanish: "Policía Federal, PF" ), formerly known as the "Policía Federal Preventiva" (Federal Preventive Police), is a Mexican police force under the authority of the Secretariat of the Interior.  They are sometimes referred to by the slang term "Federales".  Typically, agents of the Federal Police are heavily armed and wear dark blue, black, or gray combat fatigues.

Grupo de Operaciones Especiales (Mexico): The Grupo de Operaciones Especiales ("Special Operations Group", GOPES) is the operative tactical group of the Federal Police of Mexico.

Grupo de Operaciones Policiales Especiales: The Grupo de Operaciones Policiales Especiales (Police Special Operations Group, GOPE) is the grouping of commands of the Police of Chile [ Carabineros de Chile ] which carry out high-risk police operations throughout the country, including bomb disposal, location and tracking of bombs and explosives, rescuing people or bodies from places of difficult access, anti-crime raids and clashes.  GOPE is a special force of military uniformed police, as stipulated in the Constitutional Act of the Carabineros.

Grupo Especial de Operaciones: The Grupo Especial de Operaciones (English: Special Operations Group ), commonly known as GEO (pronounced ), is the Police Tactical Unit of the Spanish Cuerpo Nacional de Policía (English: National Police Corps ).  The GEO has response capabilities and is responsible for VIP protection duties, as well as countering and responding to terrorism.  Organized along the lines of many other Police Tactical Units throughout Europe, the GEO is focused on dealing with terrorist attacks, including aircraft hijackings as well as maritime threats and hostage taking.  The GEO can also be used in a support role for Spanish Police operations outside the realm of terrorism, and is active in protecting visiting heads of state and providing security for high-profile events such as the 1992 Summer Olympics held in Barcelona.  The GEO is in the ATLAS Network, that includes all the national police tactical units of European Union countries, and other countries excluded from the European Union.

Compañía de Tropas de Operaciones Especiales: Compañía de Tropas de Operaciones Especiales ("Special Operations Troops Company", CTOE) is the premier special operations force of the Santa Fe Province Police, Argentina.

Grupo de Operaciones Especiales (Spain): The Special Operations Groups (Spanish: "Grupos de Operaciones Especiales" , GOE) are the special operations forces of the Spanish Army.

Special Operations Forces Group: The Special Operations Forces Group (Spanish: "Agrupación de Fuerzas de Operaciones Especiales" , AFOE) is a special operations unit of the Argentine Army.

Unidad de Operaciones Especiales: The Unidad de Operaciones Especiales ("Special Operations Unit" - UOE) was the elite special operations force of the Spanish Navy and Marines from 1967 to 2009.  In June 2009, the unit was absorbed into the newly formed Naval Special Warfare Force ("Fuerza de Guerra Naval Especial").  The UOE, which was formerly garrisoned in the "Tercio de Armada" in San Fernando, Cádiz, operated under the direct control of the Admiralty and Naval Special Warfare Command.  It was thought to comprise approximately 100 men organized into three Operational Teams ("Estoles") as well as command and support personnel.

Special Operations Command (Spain): The Special Operations Command (Spanish: "Mando de Operaciones Especiales" ) is the command charged with overseeing the various Special Operations Groups ("Grupos de Operaciones Especiales" or "GOE") of the Spanish Army.

Supporting paragraphs: Grupo de Operaciones Especiales (Mexico) Federal Police (Mexico)
Answer: Federales