What it is
AJP-3.23 is NATO's Allied Joint Doctrine for Countering Weapons of Mass Destruction in Military Operations: the doctrine that tells NATO commanders and staffs how to organise, plan and command the range of efforts NATO calls countering weapons of mass destruction (CWMD). Its own lexicon defines CWMD as "the efforts to prevent the conceptualization, development, possession, proliferation and use of weapons of mass destruction, including related expertise, materials, technologies and means of delivery, and to mitigate their effects." Edition A, Version 1, was promulgated in September 2023 and is effective upon receipt. The Application clause is direct about who it addresses: AJP-3.23 "primarily issues guidance to NATO commanders and staffs on their CWMD authorities at the strategic and operational level and also informs NATO political and civil authorities of their proposed roles." Nations record their agreement to use it through STANAG 6538, so this is guidance for the people who plan and command CWMD efforts, not a requirement written for a company.
Six lines of effort
Chapter 3 organises CWMD into six lines of effort, aligned to the functional areas of Prevent, Protect and Recover. Defeat WMD Development and Acquisition runs through the Dissuade, Deter, Delay, Disrupt and Deny tasks. Manage Existing WMD Threats runs through Control, Defeat, Disable and Dispose, each broken into its own sub-tasks: Control into Divert, Intercept, Isolate, Seize, Secure and Consolidate; Disable into Exploit and Degrade; Dispose into Reduce, Dismantle, Redirect and Monitor. Conduct Force Protection and Consequence Management runs through Mitigate, Restore, Sustain and Support. The three foundational lines of effort are Understand the Environment, Threats and Vulnerabilities (Locate, Identify, Characterize, Assess, Attribute and Predict), Maintain and Expand CWMD Technical Expertise (Recruit, Develop and Retain), and Cooperate with and Support Partners (Partner and Coordinate). Annex A turns this structure into a notional responsibility matrix, marking a lead role and one or more supporting roles against each task across civil authorities, CBRN defence forces, other military forces and the intelligence enterprise. The Attribute Task, for example, is led by civil authorities with the other three groups in support; the Destroy Sub-Task is led by CBRN defence forces.
Command relationships and forces
Chapter 4 sets out how a CWMD operation is commanded. The North Atlantic Council keeps the authority "to either grant, revoke or retain" the access of the Supreme Allied Commander Europe and subordinate commanders to military or political means, and can change the scope of a CWMD effort as political circumstances shift. Supreme Headquarters Allied Powers Europe and a joint task force headquarters develop the plans; NATO's CBRN Reachback system, the NATO Intelligence Fusion Centre and the Centralized Targeting Capacity supply analytical and targeting support; and where an operation is large enough to warrant it, a dedicated task force for CWMD operations is formed with its own command and control structure. The forces and capabilities a commander can call on include conventional forces, special operations forces, joint intelligence, surveillance and reconnaissance, information operations, CBRN explosive ordnance disposal, CBRN specialists, technical exploitation and weapons intelligence teams, threat and hazard modelling and simulation, and stability policing.
Planning and execution
Chapter 5 walks a commander through the planning a CWMD effort demands: strategic-level planning aligned with NATO's Operations Planning Process and AJP-5; legal considerations, where a legal advisor is expected to be "involved early and throughout the planning process" and to produce a legal staff estimate covering the WMD-related legal issues a mission raises; and operational-level planning and execution. That last section covers risk assessment before operating against a suspected WMD site (radiological or chemical dose limits, rescue and extraction readiness, weather and terrain); force deployment and logistics, including decontamination of transport assets and the disposition of contaminated equipment and remains; targeting restrictions, where WMD-related facilities "are usually placed on the restricted target list" and facilities on the no-strike list "must not be attacked"; strategic communications; meteorological and medical planning; environmental considerations, including agreeing a clearance standard for decontamination; and the transition of a site to host-nation or international authorities once a mission's objectives are met.
What it excludes
The doctrine sets its own boundary at the outset. Chemical, biological and radiological weapons "designed for limited effects outside of a tactical environment, such as injuring or killing one targeted individual" fall outside its definition of WMD, and so does a conventional high-yield explosive or a means of delivery where that means is "a separable and divisible part of the weapon." Annex B holds background on WMD materials and technologies, and Annex C lists the treaties, UN Security Council resolutions and multilateral control regimes, among them the Biological and Toxin Weapons Convention, the Chemical Weapons Convention, the Nuclear Suppliers Group, the Australia Group and the Wassenaar Arrangement, that frame NATO's legal basis for acting. Neither annex sets a requirement of its own.
Nations ratify it, not companies
AJP-3.23 never names a supplier, manufacturer or acquirer as an audience. Nations record their agreement to use it through STANAG 6538: the Letter of Promulgation states "the agreement of nations to use this publication is recorded in STANAG 6538." Ratification can carry reservations, and this edition's front matter already carries six of them. Czechia postpones full implementation "until the achievement of required capabilities at individual levels"; Denmark expects its own implementation "to be completed within 6 years from date of ratification"; Croatia will implement "when the necessary organizational, material and financial conditions will be met"; Slovakia cites "limitations of national legislation"; and the Netherlands excludes itself outright: "NLD has no part in dismantling and countering WMD, nor has it the ambition to change it's role. Therefore this publication is not applicable for NLD." A company reaches this doctrine, if at all, only through whatever contract or national programme a nation's own implementation creates; the doctrine names no such mechanism itself.
The publications beneath and alongside it
AJP-3.23 sits beneath STANAG 6538, the agreement its own front matter says nations use to record their commitment to it, and reservations are registered against that STANAG rather than against the doctrine itself. It complements AJP-3.8, Allied Joint Doctrine for Comprehensive CBRN Defence, described in AJP-3.23's own Linkages section as guidance that "guides operational staff to proactively contribute to the prevention of an adversary’s WMD and CBRN substance possession or use." It sits alongside AJP-5, the Allied Joint Doctrine for the Planning of Operations that Chapter 5 names as the framework for strategic-level CWMD planning, and AJP-3.22, Allied Joint Doctrine for Stability Policing, whose forces Chapter 4 lists among the capabilities a CWMD operation can draw on. The Related Documents list at the front of AJP-3.23 names a further set of more specialised publications it informs rather than binds: AJMedP-7 on CBRN medical support, ATP-3.18.1 on explosive ordnance disposal, ATP-3.8.1 on CBRN defence on operations, ATP-45 on CBRN warning and hazard prediction, ATP-65 on individual protective equipment, ATP-70 on collective protection, ATP-84 on CBRN defence equipment, AMedP-7.5 and AMedP-7.6 on CBRN casualty planning and medical support, AEP-66 on sampling and identification, AEODP-08 on multinational CBRN explosive ordnance disposal, and AJP-3.9 on joint targeting. The standards explorer lists what else sits in the catalogue alongside this doctrine.
How you get it
AJP-3.23 is published by the NATO Standardization Office and, like every NATO standardization document, carries no charge. The NSDD listing for AJP-3.23 is the authoritative source, and a national standardization authority can also supply a copy. We credit NATO for the catalogue and neither sell nor host a copy ourselves.