regional security system

regional meteorological service/ regional weather service (RWS)

regional security

regional warning system (RWS)

NATO regional commander

regional and global relationship

regional command (RC)

regional defense alliance

regional naval control of shipping

regional orientation

Regional Planning Committee (NATO)

regional planning guide

regional reserve forces

regional war

operational meteorological data regional exchange point (OPMET)

regional tributary sea

regional airline

regional application

Canada-United States Regional Planning Group

Regional Air Movement Coordination Centre (RAMCC)

security agreement (information security, NATO)

fire extinguishing system sprinkler system and fire alarm system

all-embracing system of international security

collective security system

comprehensive system of international security

international security system

mobile security system

security system

Ship Security Alert System (SSAS)

system of collective defence / security

security aspects (working with the system)

merchant ship communication system (mercomm system)

multiple launch rocket system (MLRS); multiple rocket launcher system