As the United States Army operates in potential chemical, biological, radiological, or nuclear (CBRN) environments in the 21st century, we must account for new and emerging CBRN threats. Many peer, near-peer, and even sub-peer adversaries make operating in a CBRN environment inherent to conducting operations. Compounding this challenge is 20 years of CBRN skills atrophy created by support to counterinsurgency operations that lacked large-scale CBRN threat. Additionally, the Army's approach to countering CBRN threats and hazards capabilities is outdated - avoid by detecting hazards using equipment that cannot detect all hazards and which require personnel to manually place into operation, protect with burdensome and cumbersome equipment which reduces combat effectiveness, and decontaminate employing old resource intensive equipment.
DesignationFM 3-11
EditionApr 2025
StatusActive
ProponentTRADOC
Pages128
FunctionCBRN
CollectionCurrent Doctrine
Approved for public release; distribution is unlimited. *This publication supersedes FM 3-11, dated 23 May 2019. HEADQUA