Central Security Service (CSS)

combat service support (CSS)

security agreement (information security, NATO)

Defense Security Service (DSS)

Federal Security Service of the Russian Federation (FSB)

military security service

security service

Security Service / Military Intelligence, Section 5 (MI5)

Security Service of Ukraine (SSU)

site security service

Danish Security and Intelligence Service

United States Air Force Security Service

MIVD (Militaire Inlichtingen- en Veiligheidsdienst / Dutch Military Intelligence and Security Service)

sea surface drone (unique invention of Security Service of Ukraine - SSU)

airport security service

security courier service

central analysis team

Central Directorates (MoD RF)

Central Intelligence Agency (CIA)

central planning team

Special Operations Command Central (SOCCENT)

switching central

United Nations Mission in the Central African Republic (MINURCA)

United Nations Mission in the Central African Republic and Chad (MINURCAT)

United Nations Observer Group in Central America (ONUCA)

United Nations Peace Building Support Office in the Central African Republic (BONUCA)

United States Central Command (USCENTCOM or CENTCOM)

Central Army Registry (CAR)

central computer display set

central control and monitoring system (CCMS )

central cock

central effective zone

central focussing piece