close-in weapons system

close-quarters combat (CQC) / close-quarters battle (CQB)

biological weapons (bacteriological weapons)

less-lethal weapons (less-than-lethal weapons)

Air Force weapons system / AF weapon system

AEGIS weapons system

air-delivered cluster weapons system

artillery weapons system (arty wpns sys)

strategic weapons system

Air Force weapons effectiveness instrumentations system

Air Force Weapons System Development Center

weapons delivery system

weapons system development plan

weapons system manager

weapons system

manned aerial weapons system

manned оrbital weapons system

nuclear weapons delivery system

fire extinguishing system sprinkler system and fire alarm system

at close quarters

close air support (CAS)

close air support mission

close approach

close column

close combat

close combat attack (CCA)

close combat optic (CCO)

close defensive fire

close engagement

close envelopment

close observation

close operations

close political-military communication