Countering Chemical, Biological, Radiological & Nuclear (CBRN) Disinformation
United Nations General Assembly (UNGA) First Committee
BRIEFING NOTE | October 2026
Disinformation* by State-sponsored and State-adjacent actors has been observed across multilateral fora and will likely feature at the 81st session of the UNGA First Committee. For further information: www.GPWMDCounterDisinfo.com.
WHY IS DISINFORMATION A RISK AT THE UNGA FIRST COMMITTEE?
CBRN disinformation refers to deliberately false or manipulated information concerning CBRN equipment, technologies or materials. In the First Committee, statements, rights of reply and official documents can be used to place unfounded allegations into the UN record, consuming negotiating time and recasting political disagreement as contested questions of fact that the Committee has no mandate to verify. Member States are also targeted directly, through misrepresented verification findings or fabricated allegations about their civilian and scientific activities. Such claims erode confidence in the UN system and in international verification bodies, fuel friction among Member States and disrupt negotiations. Understanding recurring narratives and tactics equips delegations to pre-emptively debunk falsehoods, alert others to emerging patterns and build State and institutional resilience.
WHAT DISINFORMATION NARRATIVES COULD BE ENCOUNTERED AT THE FIRST COMMITTEE?
Discredited Verification
Narratives portraying the hedged language of verification bodies, their evidentiary limits or extended investigation timelines as evidence of bias, incompetence or concealment.
Misframed Mandate Limits
Narratives portraying mandate limits, including the inability to attribute responsibility, as bias, inaction or proof of institutional weakness.
Pre-emptive Discrediting
Narratives discrediting fact-checkers, local media and inspection findings in advance, so that refutation is received as confirmation.
Distorted Treaty Obligations
Narratives distorting NPT, CWC and BWC obligations. Framing commitments as impositions, or a state accused of violations presenting itself as the treaty's defender.
Fabricated Complicity
Narratives portraying national governments as secretly hosting or enabling weapons activity for foreign powers, presenting them as subordinate rather than sovereign.
False Allegations of Imminent Use
Narratives alleging that a State is preparing to use a CBRN weapon or stage a provocation, pre-loading justification before any event occurs.
Misleading Impact Data
Narratives inflating or downplaying the health and environmental effects of an incident, facility or activity, with false or no measurements to support the claim or with measurements taken out of context.
Mispresented Civilian Research
Narratives recasting purely civilian research, laboratories, funders and collaborations as having a military purpose.
WHERE MIGHT CBRN DISINFORMATION FEATURE AT THE FIRST COMMITTEE?
Each setting below carries a different risk for disinformation spread: the formal record lends more authority to claims, but when encountered in semi-formal and informal settings, disinformation is less likely to be scrutinised or verified in real time and can spread more rapidly.
Statements & Rights of Reply
Disinformation enters the official record and can afterwards be cited as having been raised at the UN.
Official Documents
Notes verbales and working papers enter circulation as official UN documents, becoming permanently citable regardless of evidence.
Side Events & Expert Panels
Expert framing may lend credibility to selective or poorly sourced technical claims.
Corridors & Informal Contact
Claims and materials passed on in consultations and corridor conversation propagate without an identifiable source.
Reports from the Press
A claim may be reported within minutes of being made, and downstream outlets often drop the attribution.
Digital Media
Clips and quotes are stripped of context and circulate with the visual authority of the UN chamber.
VERIFICATION CHALLENGES
HOW SHOULD YOU RESPOND TO DISINFORMATION AT THE FIRST COMMITTEE?
1. Prepare
Know the recurring narratives before the session opens, so recognition does not depend on verification you may not have time to complete.
2. Spot & Check
Watch for potentially false narratives and verify with trusted experts and sources. Escalate through internal channels to capital and delegation leadership.
3. Select Response
Assess whether the narrative is strategically significant and spreading widely enough to warrant a response, and in which setting. Engagement could amplify the falsehood.
4. Coordinate
If deemed significant, coordinate with capital, with relevant stakeholders, and with trusted third parties including experts and organisations, to keep messaging consistent.
5. Debunk
Correct the false claim with factual language, clarify the relevant mandate and evidentiary limits, and support individuals or institutions that are personally targeted.
* Definitively identifying disinformation can be challenging, as intent and attribution are often unclear. For brevity, this note adopts a broad definition of “disinformation” that includes other information operations, as they mislead the audience and shape perception and behaviour.