active nuclear environment

contemporary operational environment / contemporary operating environment (COE)

active atomic environment

active nuclear warfare

nuclear suitcase bomb; man-portable nuclear weapon

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 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)

permissive environment

physical environment

political, military, economic, social, information, infrastructure, physical environment, and time (PMESII-PT)

radiological environment

safe and secure environment

secure environment