| English | Spanish |
| active air defence | defensa aérea activa |
| air defence | defensa aérea |
| air defence | defensa antiaérea |
| Air Defence Control Center | Centro de Control de la Defensa Aérea |
| air defence position | posición de la defensa aérea |
| air defence region | zona de defensa aérea |
| air defence system | sistema de defensa aérea |
| antimissile defence shield | sistema de defensa antimisiles |
| Appeal Board of the European Defence Agency | Comisión de Recursos |
| Appeal Board of the European Defence Agency | Comisión de Recursos de la Agencia Europea de Defensa |
| Assistant Director for Defence Industry | Vicedirector de Industria de la Defensa |
| Association for the Defence of Macao | Asociación para la Defensa de los Intereses de Macao |
| Balkan Defence Pact | Alianza Balcánica |
| ballistic missile defence | Defensa contra los Misiles Balísticos |
| ballistic missile defence system | sistema de defensa contra misiles balísticos |
| to be assisted in one's defence by a person of one's own choice | hacerse asistir en su defensa por una persona de su elección |
| Central "People and Defence" Federation | Federación Central "Nación y Defensa" |
| Centre for Defence Intelligence | Centro Superior de Información de la Defensa |
| Centre for National Defence Studies | Centro Superior de Estudios de la Defensa Nacional |
| Chief of Defence | Jefe del Estado Mayor de la Defensa |
| Chief of Defence Staff | Jefe del Estado Mayor de la Defensa |
| Chief of the Defence Staff | Jefe del Estado Mayor de la Defensa |
| civil defence | defensa civil |
| Civil Defence Forces | fuerzas de defensa civil |
| Code of Conduct on Defence Procurement | código de conducta sobre contratos públicos de defensa |
| collective defence | defensa colectiva |
| Committe on Foreign Affairs, Security and Defence Policy | Comisión des Asuntos Exteriores, Seguridad y Política de Defensa |
| Committee for the Defence of Legitimate Rights | Comité para la Defensa de los Derechos Legítimos |
| Committee for the Defence of the Revolution | Comité para la Defensa de la Revolución |
| Committee on EU Transfers of Defence-related Products | Comité de transferencias de productos relacionados con la defensa dentro de la Comunidad |
| Committee on EU Transfers of Defence-related Products | Comité de transferencias de material de defensa en la UE |
| common European defence policy | política de defensa europea común |
| Common European Security and Defence Policy | Política Común de Seguridad y Defensa |
| Common Security and Defence Policy | Política Común de Seguridad y Defensa |
| Community initiative concerning defence conversion | Iniciativa comunitaria de reconversión militar |
| Confederation: "Freedom, Defence, Security" | Unión: "Paz, defensa, seguridad" |
| conversion of the defence industry | reconversión de la industria de defensa |
| Council for Defence and National Security | Consejo de Defensa Nacional y Seguridad |
| Croatian Defence Council | Fuerzas de Defensa Croatas |
| Croatian Defence Council | milicias croato-bosnias |
| Croatian Defence Council | Consejo de Defensa Croata |
| Croatian Defence Forces | Fuerzas de Defensa Croata |
| Defence Advanced Research Projects Agency | Agencia de investigación militar de EE.UU. |
| Defence Advanced Research Projects Agency | Agencia de Proyectos de Investigación Avanzada para la Defensa |
| defence advisory team | equipo consultivo sobre defensa |
| Defence Attaché | agregado militar |
| Defence Capabilities Initiative | Iniciativa sobre Capacidades de Defensa |
| defence district command | Comandancia de región militar |
| Defence District Commander | comandante de región militar |
| defence industry | industria de defensa |
| defence industry | industria armamentística |
| defence-in-space system | sistema de defensa con base en el espacio |
| Defence Matériel Administration | Administración de Material de las Fuerzas Armadas |
| Defence Ministry Restructuring Fund | Fondo para la reestructuración de la defensa |
| Defence Package | paquete legislativo de Defensa |
| Defence Package | paquete "Defensa" |
| defence planning | planificación de la defensa |
| defence planning | planeamiento de la defensa |
| Defence Planning Committee | Comité planificador de defensa |
| Defence Planning Committee | Comité de Planes de Defensa |
| Defence Planning Process | Proceso de Planificación de la Defensa de la OTAN |
| Defence Policy and Planning Committee | Comité de Planificación y Política de Defensa |
| defence procurement | contrato público de defensa |
| Defence Procurement Agency | Administración de Material de las Fuerzas Armadas |
| Defence Research Group | Grupo de Investigación de la Defensa |
| defence shield | sistema de defensa antimisiles |
| Defence Staff | Estado Mayor de la Defensa |
| defence umbrella | sistema de defensa antimisiles |
| Deputy Prime Minister and Minister for Defence | Viceprimer Ministro y Ministro de Defensa Nacional |
| Director, Regional Civilian Defence Area | comandante regional de la Defensa Civil |
| Duma defence committee | Comité de Defensa de la Duma |
| European Cooperation for the Long Term in Defence | Cooperación Europea a Largo Plazo en Defensa |
| European Defence Community | Comunidad de Defensa Europea |
| European Defence Identity | identidad europea de seguridad y de defensa |
| European Defence Identity | identidad europea de defensa |
| European Defence Identity | Identidad Europea de Seguridad y Defensa |
| European Security and Defence Identity | Identidad Europea de Seguridad y Defensa |
| European Security and Defence Identity | identidad europea de seguridad y de defensa |
| European Security and Defence Identity | identidad europea de seguridad y defensa |
| European Security and Defence Identity | identidad europea de defensa |
| European Security and Defence Policy | Política Común de Seguridad y Defensa |
| Farmers self-defence force of Cordoba and Uraba | mocha-cabezas |
| Farmers self-defence force of Cordoba and Uraba | Autodefensas Campesinas de Córdoba y Urabá |
| Federal Academy of Defence Administration and Technology | Escuela Federal de Administración y Técnica Militares |
| Federal Civil Defence Agency | Oficina Federal de Protección Civil |
| Federal Minister for Defence | Ministro Federal de Defensa |
| Federal Minister for Defence | Ministro Federal de Defensa nacional |
| Federal Office of Defence Administration | Oficina Federal de Administración de las Fuerzas Armadas |
| fire defence | defensiva contra incendios |
| Five Year Defence Program | programa quinquenal de defensa |
| Forces for the Defence of Democracy | Fuerzas para la Defensa de la Democracia |
| forward defence | defensa avanzada |
| Ground Based Air Defence | defensa antiaérea terrestre |
| Guidelines on the Use of Foreign Military and Civil Defence Assets in Disaster Relief | Directrices de Oslo |
| Guidelines on the Use of Military and Civil Defence Assets to Support United Nations Humanitarian activities in Complex Emergencies | Directrices sobre la utilización de recursos militares y de la defensa civil en apoyo de las actividades humanitarias de las Naciones Unidas en situaciones de emergencia complejas |
| Higher Centre for National Defence Studies | Centro Superior de Estudios de la Defensa Nacional |
| Higher Institute for National Defence Studies | Instituto de Altos Estudios de Defensa Nacional |
| integrated defence structure | estructura de defensa integrada |
| International Civil Defence Organisation | Organización internacional para la protección civil |
| International Civil Defence Organisation | Organización internacional de protección civil |
| International Civil Defence Organisation | Organización Internacional de Protección Civil |
| International Defence and Aid Fund for Southern Africa | Fondo Internacional de Ayuda y Defensa para el África Meridional |
| Israeli Defence Forces | Fuerza de Defensa de Israel |
| Joint Defence Council | Consejo de Seguridad Militar común |
| Joint Defence Council | Consejo de Seguridad Militar |
| Joint Defence General Staff | Estado Mayor Conjunto de la Defensa |
| Letter of intent on Measures to facilitate the Restructuring of the European Defence Industry | Carta de Intenciones relativa a las medidas para facilitar la reestructuración de la industria europea de defensa |
| Long Term Defence Programme | programa de defensa a largo plazo |
| man-portable air defence system | sistema portátil de defensa antiaérea |
| materials intended to meet defence requirements | materiales destinados a satisfacer las necesidades de defensa |
| mechanism to administer the financing of the common costs of European Union operations having military or defence implications | mecanismo para administrar la financiación de los costes comunes de las operaciones de la Unión Europea que tengan repercusiones en el ámbito militar o de la defensa |
| mechanism to administer the financing of the common costs of European Union operations having military or defence implications | mecanismo ATHENA |
| Minister for Defence | Ministro de la Defensa |
| Minister for Defence | Ministro de Defensa |
| Minister for Defence and Minister for the Netherlands Antillean and Aruban Affairs | Ministro de Defensa y Ministro de Asuntos referentes a las Antillas Neerlandesas y Aruba |
| Minister for Defence and the Marine | Ministro de Defensa y de Marina |
| Minister of Defence | ministro de Defensa |
| Minister of Defence | Ministro de Defensa |
| Minister of State at the Department of the Taoiseach with special responsibility as Government Chief Whip and at the Department of Defence | Secretario de Estado Adjunto a la Presidencia del Gobierno con especial responsabilidad como Presidente de los Grupos Parlamentarios del Gobierno y en el Ministerio de Defensa |
| Minister of State for Defence Procurement, Ministry of Defence | Secretario de Estado de Defensa encargado de las compras de material para la Defensa |
| Minister of State for the Armed Forces, Ministry of Defence | Secretario de Estado para las Fuerzas Armadas Ministerio de Defensa |
| Ministry of Defence | Ministerio de Defensa |
| Ministry of Russian Federation for Civil Defence, Emergencies and Elimination of Consequences of Natural Disasters | Ministerio de Situaciones de Emergencia |
| Movement for the Defence of the Homeland | Movimiento de Defensa de la Tierra |
| National Board of Psychological Defence | Dirección Nacional de la Defensa Psicológica |
| National Congress for the Defence of the People | Congreso Nacional para la Defensa del Pueblo |
| National Council for the Defence of Democracy | Consejo Nacional para la Defensa de la Democracia |
| National Defence Civil Administration | Administración Civil de la Defensa |
| National Defence Council | Consejo Nacional de Defensa |
| National Defence Council | Junta de Defensa Nacional |
| NATO Active Layered Theatre Ballistic Missile Defence programme | programa de la OTAN de defensa activa escalonada contra misiles balísticos de teatro |
| NATO Agreement on the Communication of Technical Information for Defence Purposes | Acuerdo de la OTAN sobre la comunicación de información técnica con fines de defensa |
| NATO Air Defence Committee | Comité de Defensa Aérea de la OTAN |
| NATO Air Defence Ground Environment System | Infraestructura Terrestre de la Defensa Aérea de la OTAN |
| NATO Air Defence Ground Environment System | Defensa Antiaérea de Corto Alcance de la OTAN |
| NATO Defence College | Colegio de Defensa de la OTAN |
| NATO Defence Planning Process | Proceso de Planificación de la Defensa de la OTAN |
| North American Aerospace Defence Command | Mando de la Defensa Aérea de la América del Norte |
| North American Air Defence System | Sistema de Defensa Aérea de América del Norte |
| Nuclear Defence Affairs Committee | Comité de defensa nuclear |
| office of the director of a regional civilian defence area | Comandancia Regional de la Defensa Civil |
| Parliamentary State Secretary to the Federal Minister for Defence | Secretario de Estado Parlamentario adjunto al Ministro Federal de Defensa |
| Parliamentary Under-Secretary of State, Ministry of Defence | Secretario Parlamentario del Ministerio de Defensa |
| passive air defence | defensa aérea pasiva |
| Peasant Self-Defence of Cordoba and Uraba | mocha-cabezas |
| Peasant Self-Defence of Cordoba and Uraba | Autodefensas Campesinas de Córdoba y Urabá |
| Popular Defence Force | Fuerzas de Defensa Popular |
| to prohibit extradition of a foreigner pursued for activities in defence of freedom | prohibir la extradición de un extranjero perseguido por sus actividades en defensa de la libertad |
| Revolutionary Front for the Defence of the People | Frente Revolucionario de Defensa del Pueblo |
| Revolutionary Movement for the Defence of the People | Movimiento Revolucionario de Defensa del Pueblo |
| Second Line of Defence | programa "Segunda Línea de Defensa" |
| Secretary of State for Defence | Ministro de Defensa |
| self-defence equipment | material de autodefensa |
| Self Defence Forces | Fuerzas de Autodefensa |
| Senior Defence Group on Proliferation | Grupo de Defensa de Alto Nivel sobre Proliferación |
| smart defence | defensa inteligente |
| South African Defence Force | Fuerzas armadas sudafricanas |
| South African Defence Force | Fuerzas Armadas Sudafricanas |
| Spanish Centre for National Defence Studies | Centro Superior de Estudios de la Defensa Nacional |
| Standing Committee on Defence | Comisión Permanente de Defensa |
| State Duma Committee on Defence | Comité de Defensa de la Duma |
| State Secretary, Federal Ministry of Defence | Secretario de Estado del Ministerio de Defensa |
| State Secretary for Defence | Secretario de Estado de la Defensa Nacional |
| State Secretary for Defence | Secretario de Estado de la Defensa |
| State Secretary for Defence | Subsecretario de Estado de Defensa |
| State Secretary for Defence | Secretario de Estado de Defensa |
| State Secretary for Defence and for the Netherlands Antillean and Aruban Affairs | Secretario de Estado de Defensa y Secretario de Estado de Asuntos referentes a las Antillas Neerlandesas y Aruba |
| Strategic Defence Initiative | Iniciativa de Defensa Estratégica |
| Suppression of Enemy Air Defence | neutralización de la defensa aérea enemiga |
| Supreme Council for the Defence of Afghanistan | Consejo Supremo de Defensa de Afghanistán |
| Swedish Women's Voluntary Defence Service | Federación sueca de cuerpos femeninos voluntarios de la defensa |
| Task Force European Security and Defence Policy | Grupo sobre Política Europea de Seguridad y Defensa |
| Task Force European Security and Defence Policy | Grupo PESD |
| Theatre Ballistic Missile Defence | defensa contra misiles balísticos de teatro de operaciones |
| Theatre Ballistic Missile Defence | defensa contra misiles balísticos de teatro |
| Theatre Missile Defence | defensa antimisiles "teatro" |
| Treaty of Economic, Social and Cultural Collaboration and Collective Self-defence | Tratado de colaboración en materia económica, social y cultural y de legítima defensa colectiva |
| Treaty of Economic, Social and Cultural Collaboration and Collective Self-defence | Tratado de Bruselas |
| Tánaiste Deputy Prime Minister, Minister for the Gaeltacht and Minister for Defence | Viceprimer Ministro Tanaiste, Ministro de las Regiones de Expresión Gaélica y Ministro de Defensa |
| Ulster Defence Association | Asociación para la Defensa del Ulster |
| Ulster Defence Association | Asociación de Defensa del Ulster |
| Ulster Defence Regiment | Regimiento de Defensa del Ulster |
| United Self-Defence Forces of Colombia | Autodefensas Unidas de Colombia |
| United Self-Defence Units of Colombia | Autodefensas Unidas de Colombia |
| Virtual Center of Excellence for NBC Weapons Defence | Centro Virtual de Excelencia para la Defensa contra las Armas NBQ |
| Voluntary Committees of Civil Self-Defence | Comités Voluntarios de Autodefensa Civil |
| work of defence | obra de protección |
| work of defence | obra de defensa |
| Working Group on defence | Grupo "Defensa" |
| Working Party on Security and Defence | Grupo de trabajo sobre la seguridad y la defensa |
