acoustical environment

contemporary operational environment / contemporary operating environment (COE)

operational environment (OE) (obsolete, see `operating environment`)

acoustical blanket

acoustical transducer

acoustical measurement system

acoustical sensitivity

acoustical-fatigue test

air defense ground environment

Allied Joint Doctrine for Recovery of Personnel in a Hostile Environment (AJP-3.7)

battlefield environment

chemical environment

common operating environment (COE)

contaminated environment

ECM environment

environment

Environment and Security Initiative (ENVSEC) UN-OSCE-NATO initiative

favorable environment

field environment

Future Airborne Capability Environment (FACE)

hostile environment

information environment

land environment

launch environment

launching environment

low-threat environment

military environment

multiple unified simulation environment (MUSE)

NBC environment

non-permissive environment

operating environment (OE)

paramilitary environment

permissive environment