Central Files: The location in M Compound headquarters where select DGI files are stored, processed by staff, and reviewed by its leadership.
Department Files: The more expansive files on specific operations and agents that are kept separate from the Central Files by departmental records units.
Case Files: Operational and intelligence files kept by individual DGI employees in the attempt to compartmentalize information and while communication of information to superiors often occurs the file is not generally provided.
Communism: The system of authoritarian government that advocates class war based on the collective need of the people and governance being determined by a communal group of leaders who set all policy.
Communist Party: The chief group promoting Communism and Marxism internationally that often acts knowingly or is unwittingly used to conceal members of aligned intelligence groups.
Departments: The individual subordinate associations within the General Directorate of Intelligence, these departments also possessed smaller reporting groups called sections.
Going Native: The process of an intelligence officer being emotionally influenced by revolutionary or guerrilla movements they have infiltrated and abandoning their loyalty to a respective intelligence organization.
Guerrilla: A membership of an irregular fighting group without legal authority that is at odds with organized regular forces or a national government.
Guerrilla Warfare: Irregular forces using sabotage, assassination, and terrorism against civilians or military forces with the intent to destabilize a government or society.
Illegal Agent: Operatives that act without legitimate cover and thus are not protected by the diplomatic conventions shielding legal agents in countries that Cuban intelligence operates. These Illegal Department used these agents by permanently assigning them to foreign countries without field stations for intelligence operations or local infiltration.
Legal Agent: Agents provided cover by employing them as staff under a nation's diplomatic or military groups.
Missions: A Cuban embassy located in foreign countries that are usually the planning center of most local intelligence operations.
Sections: The geographic areas of influence Cuban agencies divided influence among themselves to conduct operations. Examples would include Central American Section, Latin American Section, and South American Section that each had subordinate leaders in specific countries that reported to Section leaders.
BC: Colonial Bureau
CTC: Confederation of Cuban Workers
DAAFAR: Anti-Air Defense and Revolutionary Air Force
DIER: Directorate of Investigations of the Rebel Army
DR: Revolutionary Directorate
DSE: Cuban Department of State Security
EE: Special Schools Department
EJT: Youth Labor Army
EMB: Concealment Device Section
FAR: Revolutionary Armed Forces of Cuba
FEU: Federation of University Students
G-2: DGI (Department M)
ICAP: Cuban Institute of Friendship with Peoples
IO: Operational Information Section
LF: Photographic Laboratory
LN: National Liberation Department
LQ: Chemical Laboratory
MGR: Revolutionary Navy
MI: Technical Operational Support Department
MINFAR: Revolutionary Armed Forces
MININT: Ministry of the Interior
MO: Illegal Centers Department
MS: Legal Centers Department
NR: National Revolutionary Militia
PCC: Cuban Communist Party
PD: Personnel Department
PRC: Cuban Revolutionary Party
PSP: Popular Socialist Party
SCC: Central Ciphering Service
SI: Information Services Department
ST: Technical Training Section
TGF: Border Guard Troops
UCL: Cuban Union for Liberation
UJC: Union of Young Communists