system of checks and balances

preventive maintenance checks and services (PMCS)

Trails, Lay, Aimpoint established, Boresight verified, Safe [verification of lay], Prefire checks performed, Ammunition Prepared

universal background checks

maintenance checks / routine maintenance, scheduled tasks

routine maintenance / scheduled tasks, maintenance checks

scheduled tasks / routine maintenance, maintenance checks

fire extinguishing system sprinkler system and fire alarm system

attitude-and-heading reference system / attitude and heading reference system (AHRS)

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

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

merchant ship communication system (mercomm system)

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

Air Force weapons system / AF weapon system

selective calling system, SELCAL system

Unmanned Aerial System / Uncrewed Aircraf System (UAS)

system of system common operating environment

air command and control system (ACCS)

Airborne Warning and Control System (AWACS)

ammunition handling and storage system

Army Mobilization and Operations Planning & Execution System (AMOPES)

Automated Command and Control Information System (ACCIS)

Automated Command and Control System (ACCS)

automated target detection, tracking, co-ordinate finding and interceptor guidance system

automated troop command and control system

battlefield information collection and exploitation system

command and control (C2) system

command and control communication system (C2CS)

command and control information system

command and control system

command, control and communication (C³) system

communications and intelligence system

control and guidance system