Federal Security Service of the Russian Federation (FSB)

fire support base (FSB)

Forward Support Battalion (FSB)

Federal Protective Service

federal service

work in the mail room of Germany's Federal Intelligence Service

active Federal service

Operational Group of Russian Forces in Transnistria (the)

Russian Guard

Russian New Generation Warfare (RNGW) (4th Generation Warfare, Hybrid War etc.)

Russian Volunteer Corps (RVC / RDK)

Federation of Air Transport User Representatives in the European Community

International Aeronautical Federation

International Federation of Air Line Pilots’ Associations

International Federation of Air Traffic Controllers’ Association

International Federation of Forwarding Associations

Federal Aviation Regulation (FAR)

Federal Bureau of Investigation (FBI)

Federal Emergency Management Agency (FEMA)

FEDCON (Federal Employees and Contractors only)

Federal Aviation Administration (FAA)

Federal Aviation Regulations (FARs)

security agreement (information security, NATO)

Central Security Service (CSS)

Defense Security Service (DSS)

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)