reconnaissance and surveillance satellite

surveillance, high- and low-altitude surveillance

satellite surveillance

surveillance satellite

intelligence, surveillance, and reconnaissance (ISR)

reconnaissance and surveillance assets

reconnaissance and surveillance missions

reconnaissance, surveillance, and target acquisition (RSTA)

special surveillance and reconnaissance

surveillance and reconnaissance

intelligence, surveillance, target acquisition, and reconnaissance (ISTAR)

reconnaissance and surveillance line

reconnaissance and surveillance platoon

aerial surveillance and reconnaissance plan

reconnaissance satellite

earth reconnaissance satellite

Space System for Tracking Ships and Aircraft in Distress – Search and Rescue Satellite (COSPAS-SARSAT)

surveillance, under surveillance

command, control, computers, communication, intelligence, surveillance, reconnaissance (C4ISR)

celestial and satellite navigation systems

Charter on the rights and obligations of States relating to global navigation satellite system (GNSS) services

Guidelines for the Introduction and Operational Use of Global Navigation Satellite System

counter reconnaissance / counter-reconnaissance

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

chemical, biological, radiological and nuclear surveillance

high- and low-altitude surveillance

joint surveillance and targeting attack radar system (JSTARS)

surveillance and attack system

Unmanned Carrier Launched Airborne Surveillance and Strike System (UCLASS)

surveillance and target acquisition plan (STAP)

acquisition and surveillance radar

Base Expeditionary Targeting and Surveillance Systems - Combined

communication, navigation and surveillance