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Cognitive warfare: an invisible conquest of our minds?

Cognitive warfare: what seven years of military-civilian research reveals

with Didier Bazalgette, Doctor of Neuroscience, former AI and Cognitive Sciences Advisor to the Defense Innovation Agency and Paul Janin, PhD student in Cognitive Science at CEA Paris-Saclay
On November 5th, 2025 |
5 min reading time
Didier Bazalgette
Didier Bazalgette
Doctor of Neuroscience, former AI and Cognitive Sciences Advisor to the Defense Innovation Agency
Paul Janin_VF
Paul Janin
PhD student in Cognitive Science at CEA Paris-Saclay
Key takeaways
  • The term “cognitive warfare” was first used in 2017, without being specifically defined, by Vincent Stewart.
  • A few years later, the concept of Cognitive Net Assessment (CNA) emerged, seeking to understand the mechanisms of stability and imbalance in contemporary cognitive environments.
  • Three concepts therefore structure the NAC: decision-making overload, cognitive collapse, and cognitive entropy.
  • Starting in 2022, the use of consumer AI will enable cognitive warfare to move beyond the artisanal stage and enter the era of “mass production.”
  • Finally, Langlois-Berthelot and Gaie's model is structured around collective narratives, institutional mediation, and political regulation with the aim of achieving cognitive stability.

Attack­ing the enemy’s thought pro­cesses is not a par­tic­u­larly ori­gin­al concept: the prac­tices developed by the mas­ters of Soviet dis­in­form­a­tion provide very con­crete and rel­at­ively well-doc­u­mented examples of this. How­ever, due to the com­plex­ity of the oper­a­tions involved and the resources required, these prac­tices are more akin to small-scale crafts­man­ship than mass pro­duc­tion and are still thought of as a sec­ond­ary form of dis­in­form­a­tion. Nev­er­the­less, at the begin­ning of the 21st Cen­tury, advances in neur­os­cience and a bet­ter under­stand­ing of how the brain works sug­gest that cog­nit­ive pro­cesses can now be tar­geted in a more sci­entif­ic manner.

The birth of a concept

In 2017, the term “cog­nit­ive war­fare” was used for the first time by Vin­cent Stew­art, dir­ect­or of the US Defence Intel­li­gence Agency (DIA). How­ever, it was more of a buzzword than a sci­en­tific­ally defined concept. Some­time later, at the end of 2018, “cog­nit­ive war­fare” was still just a con­veni­ent expres­sion used to describe all forms of inform­a­tion­al and psy­cho­lo­gic­al manip­u­la­tion. The term was cir­cu­lat­ing in aca­dem­ic circles and was often accom­pan­ied by ref­er­ences to sci­ence fic­tion or cyber­net­ics. The first attempts at open­ing it up centred around a mix of ima­gin­ary pro­spects, war games and stra­tegic com­mu­nic­a­tion. These approaches were inter­est­ing in that they raised aware­ness among insti­tu­tions, stim­u­lated stra­tegic ima­gin­a­tion and allowed pos­sib­il­it­ies to be explored. But they belonged to anoth­er register: that of pro­jec­tion, not measurement.

From 2022 onwards, anoth­er pro­ject was launched in the major centres of French mil­it­ary doc­trine. The armed forces ceased to treat cog­nit­ive war­fare as a future-ori­ented top­ic and instead approached it as an observ­able sys­tem. The Centre de doc­trine et d’enseignement du com­mandement (CDEC) (Com­mand Doc­trine and Train­ing Centre) then con­duc­ted a series of in-depth ana­lyses cov­er­ing the peri­od 2022–2023. In 2023, the Centre d’enseignement milit­aire supérieur-Terre (CEMST) (Centre for High­er Mil­it­ary Edu­ca­tion – Land) took over, incor­por­at­ing mod­el­ling and tools from the decision sciences.

This res­ul­ted in the concept of Cog­nit­ive Net Assess­ment (CNA), based on the work of Andrew Mar­shall and intro­duced in reports coordin­ated by Lan­glois-Ber­th­el­ot (2023–2024). These res­ults mark the decis­ive junc­tion between this insti­tu­tion­al work and sci­entif­ic research. Where “war­games” explore future scen­ari­os, CNA seeks to con­struct a rig­or­ous meth­od. Rather than ima­gin­ing the future, it seeks to under­stand the mech­an­isms of sta­bil­ity and imbal­ance in con­tem­por­ary cog­nit­ive environments.

These mech­an­isms have become increas­ingly import­ant since 2022, when gen­er­at­ive arti­fi­cial intel­li­gence (AI) became access­ible to the gen­er­al pub­lic. These AI mod­els are a game-changer, as they allow cog­nit­ive war­fare to move bey­ond small-scale oper­a­tions and enter the era of “mass pro­duc­tion” and, there­fore, exist­en­tial threat.

Why cognitive “Net Assessment”

Tra­di­tion­al Net Assess­ment, developed by the Pentagon in the 1970s, com­pared dynam­ics rather than stat­ic resources. It assessed real asym­met­ries, speeds of adapt­a­tion and slow dis­rup­tions. CNA applies the same logic to the sphere of per­cep­tion and col­lect­ive decision-mak­ing. It does not seek to map dif­fuse nar­rat­ives or “influ­ences”, but rather to under­stand how a col­lect­ive main­tains or loses its inter­pret­at­ive coher­ence in the face of inform­a­tion flows.

Three con­cepts struc­ture this approach: (1) Decision-mak­ing super­pos­i­tion: the moment when sev­er­al con­tra­dict­ory rep­res­ent­a­tions of real­ity coex­ist without any one pre­vail­ing; (2) Cog­nit­ive col­lapse: a sud­den shift towards a single nar­rat­ive, often under the effect of an emo­tion­al or inform­a­tion­al shock; (3) Cog­nit­ive entropy: a meas­ure of men­tal and inform­a­tion­al dis­order with­in a social sys­tem. These con­cepts reflect the con­vic­tion that cog­nit­ive war­fare should be treated as a ques­tion of dynam­ics rather than dis­course. CNA makes it an engin­eer­ing field whose object­ive is to under­stand the fra­gil­ity of a cog­nit­ive sys­tem to pro­tect and strengthen it.

As Lan­glois-Ber­th­el­ot demon­strated, CNA is based on two com­ple­ment­ary indic­at­ors: a cog­nit­ive entropy index, which meas­ures the dis­per­sion and redund­ancy of cir­cu­lat­ing nar­rat­ives, and a super­pos­i­tion ten­sion index, which estim­ates the prox­im­ity of a col­lapse threshold. Togeth­er, they make it pos­sible to identi­fy areas of cog­nit­ive instabil­ity and take action before a break­down occurs. What fun­da­ment­ally dis­tin­guishes this approach from the foresight exper­i­ments of the 2020s is this subtle bal­ance between oper­a­tion­al­ity and sci­entif­ic rigour. The res­ults can be repro­duced, com­pared and dis­cussed with­in a shared meth­od­o­lo­gic­al frame­work. The dis­cip­line is defin­it­ively mov­ing away from nar­rat­ive towards meas­ure­ment and con­trolled experimentation.

The role of artificial intelligence

AI occu­pies a cent­ral place in this con­cep­tu­al archi­tec­ture. It accel­er­ates atten­tion cycles, pro­motes micro-tar­get­ing and cog­nit­ive isol­a­tion, but it also provides the tech­nic­al means to mod­el them through detec­tion of arti­fi­cial flows, sim­u­la­tion of inform­a­tion propaga­tion, and machine learn­ing from weak sig­nals. AI becomes a double mir­ror: a factor of instabil­ity on the one hand, and an instru­ment of obser­va­tion on the oth­er. In CNA, it enables the con­struc­tion of dynam­ic rep­res­ent­a­tions of men­tal envir­on­ments, not to mech­an­ic­ally pre­dict indi­vidu­al beha­viour, but to meas­ure the col­lect­ive cog­nit­ive load and resi­li­ence of a social sys­tem in the face of inform­a­tion­al disturbances.

This approach did not ori­gin­ate from a single school of thought, but from a need for inter­dis­cip­lin­ary con­ver­gence. Cog­nit­ive research­ers, data engin­eers and doc­trine officers find com­mon ground here. This fruit­ful hybrid­isa­tion has made it pos­sible to pro­duce a stable lan­guage – attract­ors, entropy, col­lapse – and to estab­lish last­ing bridges between mil­it­ary and sci­entif­ic cul­tures. The 2023–2024 reports laid the found­a­tions for this com­mon gram­mar. They enabled France to align its work with emer­ging inter­na­tion­al stand­ards, while estab­lish­ing its own path: a sci­ence of cog­nit­ive resi­li­ence rooted in meas­ure­ment, not speculation.

Diagnosing cognitive vulnerabilities

This sci­entif­ic momentum con­tin­ued in 2024 with a new mile­stone: the sys­tem­ic dia­gnos­is of cog­nit­ive vul­ner­ab­il­it­ies, coordin­ated by Lan­glois-Ber­th­el­ot in asso­ci­ation with Chris­tophe Gaie (“Ser­vices du Premi­er Min­istre”). Where­as Net Assess­ment sought to char­ac­ter­ise the over­all sta­bil­ity of an envir­on­ment, this approach aims to under­stand the pre­cise moment when a social sys­tem loses its abil­ity to self-reg­u­late. Draw­ing on the work of Bateson, Mor­in and Fris­ton, this approach con­siders social cohe­sion to be an emer­gent prop­erty of a sat­ur­ated inform­a­tion sys­tem. Crises do not res­ult solely from extern­al attacks, but from the intern­al amp­li­fic­a­tion of unreg­u­lated feed­back loops.

Soci­ety is rep­res­en­ted as a net­work of multi-scale inter­ac­tions between indi­vidu­als, insti­tu­tions and sym­bols. Cog­nit­ive vul­ner­ab­il­it­ies then appear as struc­tur­al effects observ­able over time: inform­a­tion over­load leads to emo­tion­al polar­isa­tion, which weak­ens medi­ation and accel­er­ates desyn­chron­isa­tion between social groups. The Lan­glois-Ber­th­el­ot and Gaie mod­el artic­u­lates three dimen­sions – col­lect­ive nar­rat­ives, insti­tu­tion­al medi­ations, polit­ic­al reg­u­la­tions – and eval­u­ates not what indi­vidu­als think, but the speed at which their rep­res­ent­a­tions are recon­figured. Cog­nit­ive sta­bil­ity then becomes the abil­ity to main­tain mul­tiple inter­pret­a­tions of real­ity without nar­rat­ive collapse.

Sev­en cog­nit­ive fields serve as res­on­at­ors of cohe­sion: nation­al belong­ing, mor­al eco­logy, social norms, his­tor­ic­al memory, insti­tu­tion­al legit­im­acy, stra­tegic autonomy, and inter-eth­nic cohe­sion. Ana­lys­ing their inter­ac­tions allows us to map cog­nit­ive entropy, com­par­able to an energy map of the social body. AI plays an obser­va­tion­al role, with semant­ic graphs detect­ing nar­rat­ive dens­i­fic­a­tions, identi­fy­ing cor­rel­a­tions between fields and meas­ur­ing cog­nit­ive trans­itions. It does not draw con­clu­sions: it facil­it­ates read­ing without repla­cing human interpretation.

Current real-life cases

An ini­tial intern­al exper­i­ment, con­duc­ted in a lim­ited, non-pub­lic set­ting, tested this meth­od­o­lo­gic­al archi­tec­ture. Without going into detail about the meth­ods used, this imple­ment­a­tion con­firmed the pos­sib­il­ity of dynam­ic mon­it­or­ing of cog­nit­ive cohe­sion and early detec­tion of areas of sym­bol­ic ten­sion. These par­tial res­ults, obtained with­in a lim­ited scope, are now guid­ing work towards the integ­ra­tion of these meas­ures into stra­tegic obser­va­tion sys­tems. The strength of the sys­tem lies in the con­ver­gence between mil­it­ary and civil­ian cul­tures. One provides long-term man­age­ment and the form­al­isa­tion of crit­ic­al thresholds; the oth­er provides a detailed under­stand­ing of sym­bol­ic dynam­ics. Togeth­er, they lay the found­a­tions for an applied sci­ence of cog­nit­ive sta­bil­ity, cap­able of meas­ur­ing social cohe­sion with meth­od­o­lo­gic­al rigour.

Today, cog­nit­ive war­fare has become a field of engin­eer­ing in its own right. CNA is its cent­ral archi­tec­ture: a mon­it­or­ing and sim­u­la­tion tool that replaces alert nar­rat­ives with objec­ti­fi­able indic­at­ors. The pri­or­it­ies for 2025–2028 are clear: con­sol­id­ate met­rics, integ­rate sim­u­la­tion into oper­a­tion­al plan­ning, and teach tem­por­al decision man­age­ment. After six years of gradu­al mat­ur­a­tion, cog­nit­ive war­fare is enter­ing a phase of equi­lib­ri­um: the meth­od is sta­bil­ising, the tools are becom­ing more pre­cise, and the approach is gain­ing in coher­ence without los­ing con­cep­tu­al caution. 

Thus, the work car­ried out by Lan­glois-Ber­th­el­ot and Gaie extends the move­ment begun with CNA: it shifts cog­nit­ive war­fare from the realm of spec­u­la­tion to that of sys­tem­ic engin­eer­ing, where cohe­sion becomes a meas­ur­able, and now tested, vari­able of nation­al resilience.

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