| ACCP | (The) Army Correspondence Course Program (www.atsc.army.mil/accp/) | In English | → Education |
| AFAD | Armed Forces Acquisition Document | In English | |
| AIVD | Algemene Inlichtingen en Veiligheids Dienst | In Dutch | |
| AMGOT | Allied Military Government for Occupied Territories | In English | → History |
| ARLA | Armée révolutionnaire de libération de l’Azawad | In French | → Political parties and movements |
| ASFP | Army Senior Fellows Program | In English | |
| ASTIA | Armed Services Technical Information Agency | In English | |
| ATF | Advanced Tactical Fighter | In English | |
| BASM | Bombe à sous-munition | In French | |
| BCA | Bataillon de Chasseurs Alpins | In French | |
| BCRAM | Bureau Central de Renseignement et d’Action Militaire | In French | → History |
| BMD | Ballistic Missile Defense | In English | → Military engineering |
| BMS | Battle Management Simulation | In English | |
| BVE | Batallón Vasco Español | In Spanish | → Organizations and associations |
| CDC | Collins Defense Communications | In English | → Telecommunications |
| CDCD | Collins Defense Communications Division | In English | → Telecommunications |
| CED | Comunidade Europeia de Defesa = EDC | European Defence Community | In English = EVG | Europäische Verteidigungsgemeinschaft | In German = CED | Communauté Européenne de Défense | In French = CED | Comunità Europea di Difesa | In Italian = EDG | Europese Defensie Gemeenschap | In Dutch = EWO | Europejska Wspólnota Obronna | In Polish |
In Portuguese | → European Union |
| CED | Comunità Europea di Difesa = EDC, EVG, EDG, EWO (look above) |
In Italian | → European Union |
| CED | Communauté Européenne de Défense = EDC, EVG, EDG, EWO (look above) |
In French | → European Union |
| CFAC | Conférence des Forces Armées Centraméricaines = CFAC | Conferencia de las Fuerzas Armadas Centroamericanas | In Portuguese = CFAC | Conferência das Forças Armadas da América Central | In Portuguese |
In French | → International relations |
| CFAC | Conferencia de las Fuerzas Armadas Centroamericanas = (look above) |
In Portuguese | → International relations |
| CFAC | Conferência das Forças Armadas da América Central = (look above) |
In Portuguese | → International relations |
| CIRAT | Centre d'Information et de Recrutement de l'Armée de Terre | In French | → Labour, labour economics |
| CISM | Conseil International du Sport Militaire | In French | → Organizations and associations → Sport, physical exercises |
| CJFLCC | Coalition Joint Forces Land Component Command | In English | |
| COMAC | Comité d’Action Militaire | In French | |
| COPS | Comité politique et de sécurité | In French | → Politics |
| DAB | Defense Acquisition Board | In English | |
| DABM | Defense Against Ballistic Missiles | In English | → Military engineering |
| DAR | Defense Acquisition Regulation | In English | |
| DARPA | Defense Advanced Research Projects Agency | In English | |
| DCA | Defense Communications Agency | In English | → Telecommunications |
| DCA | Defense Communication Agency | In English | → Telecommunications |
| DCAA | Defense Contract Audit Agency | In English | → Military engineering |
| DCAS | Defense Contract Administration Services | In English | → 3474 |
| DCASMA | Defense Contract Administration Services Management Area | In English | → 3474 |
| DCASR | Defense Contract Administration Services Region | In English | → 3474 |
| DCM | Distinguished Conduct Medal | In English | |
| DDC | Defense Documentation Center | In English | → Libraries → Military engineering |
| DDN | Defense Data Network | In English | → Networks, communication |
| DefEl | Defense Electronics | In English | → Serial publications, periodicals → Electronics → Military engineering |
| DeScE | Defense Science Electronics | In English | → Serial publications, periodicals → Electronics → Military engineering |
| DFA | Defence Families of Australia (www.dfa.org.au) | In English | → Organizations and associations |
| DGA | Délégation Générale à l'Armement | In French | → Military engineering |
| DIA | Defense Intelligence Agency | In English | |
| DID | Defense In Depth | In English | → Computer science |
| DII | Defense Industry Initiative | In English | → Industry, industrial policy → Military engineering |
| DIS | Defense Industrial Security | In English | → Military engineering |
| DIS | Defense Investigative Service | In English | |
| DISCO | Defense Industrial Security Clearance Office | In English | → Military engineering |
| DLSC | Defense Logistics Service Center | In English | → Maintenance and logistics |
| DMA | Defense Mapping Agency | In English | |
| DMJ | Defense Management Journal | In English | → Serial publications, periodicals |
| DMR | Délégué Militaire Régional | In French | |
| DMSP | Defense Meterological Satellite Program | In English | → Meteorology, climatology → Spaceflight engineering, astronautics |
| DNA | Defense Nuclear Agency | In English | → Nuclear technology |
| DOD | Department of Defense | In English | |
| DODI | Department of Defense Instruction | In English | |
| DODISS | Department of Defense Index of Specifications and Standards | In English | → Standardization |
| DODSTP | Department of Defense Standard Satellite | In English | → Spaceflight engineering, astronautics |
| DPAS | Defense Priorities and Allocation System | In English | |
| DPDO | Defense Property Disposal Office | In English | |
| DPS | Department of Defense Project Specification | In English | → Military engineering |
| DSA | Defense Supply Agency | In English | → Military engineering |
| DSJ | Defense Science Journal | In English | → Serial publications, periodicals |
| DSP | Defense Support Program | In English | |
| DSRMC | Defense Systems Review Military Communications | In English | → Serial publications, periodicals → Military engineering |
| DST | Defense Suppression Threat | In English | |
| EDC | European Defence Community = CED, EVG, EDG, EWO (look above) |
In English | → European Union |
| EDG | Europese Defensie Gemeenschap = CED, EDC, EVG, EWO (look above) |
In Dutch | → European Union |
| EFMS | Équipe de France Militaire de Ski | In French | → Sport, physical exercises |
| ESOAR | Escuela de Suboficiales de la Armada | In Spanish | → Specialized or (poly)technical colleges |
| EVG | Europäische Verteidigungsgemeinschaft = CED, EDC, EDG, EWO (look above) |
In German | → European Union |
| EWO | Europejska Wspólnota Obronna = CED, EDC, EVG, EDG (look above) |
In Polish | → European Union |
| FFA | Forces Françaises en Allemagne | In French | |
| FFI | Forces Françaises de l'Intérieur | In French | → History |
| FFSA | Forces Françaises Stationnées en Allemagne | In French | |
| GAE | Grupos Armados Españoles | In Spanish | → Organizations and associations |
| GAL | Grupos Antiterroristas de Liberación | In Spanish | → Organizations and associations |
| GF | Groupe Franc | In French | → History |
| GMR | Groupes Mobiles de Réserve | In French | → History |
| GRU | Glavnoye Razvedivatel'noye Upravileniye | In Russian | |
| HGM | Heeresgeschichtliches Museum (www.hgm.or.at) | In German | → Museums |
| HIAD | High-Altitude Defense Program | In English | → Military engineering → Aeronautics, aircraft |
| IADB | Inter-American Defense Board | In English | → International relations |
| IDDS | Institute for Defense and Disarmament Studies | In English | → Polemology |
| IDS | Initiative de Défense Stratégique | In French | |
| IDSA | Institute for Defense Studies and Analyses | In English | → Research institutes → Polemology |
| IDSNET | Integrated Defense System Network | In English | → Military engineering → Networks, communication |
| JA | Jugoslavenska armija | In Croatian | |
| JAN | Joint Army-Navy | In English | → 359 |
| JANNAF | Joint Army, Navy, NASA, Air Force | In English | → Spaceflight engineering, astronautics |
| JNA | Jugoslavenska narodna | In Croatian | |
| LVF | Légion des Volontaires Français | In French | → History |
| MEC | Ministerul Educaţiei şi Cercetării | In Romanian | → Education → Research policy |
| MGK | Millî Güvenlik Kurulu (www.mgk.gov.tr) | In Turkish | → International relations |
| MILS | Mission Interministérielle pour la Lutte contre les Sectes | In French | → Religion, theology |
| MIVD | Militaire Inlichtingen en Veiligheids Dienst | In Dutch | |
| MIVILUDES | Mission interministérielle de vigilance et de lutte contre les dérives sectaires | In French | → Religion, theology |
| MUAHAG | Military Usage and Harmonization Advisory Group | In English | |
| OPDS | Organ on Politics, Defence and Security | In English | → International relations |
| ORA | Organisation de Résistance de l’Armée | In French | → History |
| OSD | Office of the Secretary of Defense | In English | → Military engineering |
| PESD | Politique Européenne de Sécurité et de Défense | In French | → European Union |
| PLA | Palestina Liberiga Armeo | In Esperanto | |
| RIDS | Rockwell Integrated Defense Simulator | In English | → Computer simulation |
| RSN | Refuser Solidarity Network (www.refusersolidarity.net) | In English | → Organizations and associations → Politics |
| SA | Sturmabteilung | In German | → History |
| SD/SP | Space Division Directorate of Security | In English | → Spaceflight engineering, astronautics |
| SDAG | Strategic Defense Advisory Group | In English | |
| SDC | Strategic Defense Center | In English | |
| SDC | Strategic Defense Command | In English | |
| SDCC | Strategic Defense Command Center | In English | |
| SDCCC | Space Defense Command Communication Center | In English | → Telecommunications → Spaceflight engineering, astronautics |
| SDCOC | Space Defense Command Operations Center | In English | → Telecommunications → Spaceflight engineering, astronautics |
| SDI | Strategic Defense Initiative | In English | |
| SDIO | Strategic Defense Initiative Office | In English | |
| SDIO | Strategic Defense Initiative Organization | In English | → Organizations and associations → Military engineering |
| SDIP | Strategic Defense Initiative Program | In English | |
| SDOPS | Strategic Defense Operational Planning Support | In English | |
| SDP | Strategic Defense Program | In English | → Military engineering |
| SDSC | Strategic and Defence Studies Centre | In English | |
| SEMWS | Survivable, Endurable Missile Warning System | In English | → Military engineering |
| SIFC | Service de l'Instruction des Forces Canadiennes | In French | → Education |
| SMH | Society for Military History | In English | → Organizations and associations → History |
| SMI | Structure Militaire d'Intégration | In French | |
| SNM | Service National Maquis | In French | → Political parties and movements → History |
| SODSIM | Strategic Offense-Defense Simulation | In English | → Military engineering |
| SS | Schutzstaffel | In German | → History |
| STRADEM | Strategic Defense Effectiveness Model | In English | → Military engineering |
| TOC | Tactical Operations Center | In English | |
| TW/AA | Tactical Warning/Attack Assessment | In English | → Military engineering |
| UNSC | United Nations Space Command | In English | → United Nations → Entertainment |
| USAMRIID | United States Army Medical Research Institute of Infectious Diseases | In English | → Infectious diseases |
| USASDC | United States Army Strategic Defense Command | In English | |
| USASDG | United States Army Space Defense Group | In English | 623n → Spaceflight engineering, astronautics |
| VDSÖ | Vereinigung Demokratischer Soldaten Österreichs | In German | → United Nations |
| WWMCCS | Worldwide Military Command and Control System | In English | → Military engineering |