Chemical, biological, radiological, and nuclear defense or Nuclear, biological, and chemical protection is protective measures taken in situations in which chemical, biological, radiological, or nuclear hazards may be present. CBRN defense consists of CBRN passive protection, contamination avoidance, and weapons of mass destruction mitigation.
CBRN disposal technicians taking part in a training exercise
Brazilian Armed Forces personnel training for biological warfare in 2015
Toronto Fire Services personnel equipping hazmat suits at a hazardous materials incident in 2015
Members of the Irish Defence Forces and Dublin Fire Brigade at a CBRNE training exercise
Radiological warfare is any form of warfare involving deliberate radiation poisoning or contamination of an area with radiological sources.
United States Navy Seabees donning NBC suits during a CBRN defense drill in 2008