Psyops: how psychological warfare works today
When you hear psyops, you probably picture something from a film. A bunker full of analysts, leaflets dropped over enemy territory, a radio voice trying to talk the other side into surrender. That image was once accurate, today it no longer is.
The most effective psychological warfare of this moment is not trying to convince you of anything. That is the disorienting part. It does not particularly want you to adopt its view, it wants you to be too tired, one day, to form a view about anything at all. That shifts the whole target: away from what you think, towards your ability to think clearly in the first place.
Psyops, short for psychological operations, is the deliberate shaping of a target audience's perceptions, emotions and behaviour to achieve a strategic goal without physical force. Where classic psyops wanted to convince you of one message, the modern version aims at something else: exhausting your attention and undermining your ability to tell true from false.
What is psyops?
Psyops is the operational arm of psychological warfare. Militaries use the term for anything that influences the will, the perception and the behaviour of a target audience without a shot being fired. The techniques are old. The Mongols deliberately spread rumours about their own cruelty, so that cities surrendered before the army arrived. In the Second World War, every side dropped leaflets and broadcast radio programmes to break the enemy's morale.
What all those classic operations had in common: they wanted to convince you. Surrender, because you will lose anyway. Rise against your government, because it lies to you. One message, spread as widely as possible, with the intention that you would adopt it.
That logic has largely disappeared. The old techniques still work fine, only something far cheaper and more effective has taken their place. To understand what, we need to look at what has changed over the past fifteen years. And that reads best as a series of shifts.
From convincing to overwhelming
The first shift is about volume. In 2016 researchers Christopher Paul and Miriam Matthews of the RAND Corporation described a propaganda model they called the "firehose of falsehood".[1] High volume, high speed, many channels at once, endless repetition. And, here is the counter-intuitive part, with no commitment whatsoever to consistency or the truth.
Classic propaganda had to stay believable. One lie that came out undermined the rest. The firehose does not have that problem. It tells you this morning there were no soldiers, this afternoon they were volunteers, this evening they had every right to be there. That contradiction is precisely the point, not a glitch in the system. Your brain simply cannot keep checking forever.
Here a mechanism enters that behavioural scientists have known since the 1970s: the illusory truth effect. According to research by Lynn Hasher and colleagues (1977), people grow more likely to hold a claim true the more often they hear it, regardless of whether the claim is correct.[2] Repetition feels like truth. Later work by Lisa Fazio and colleagues (2015) showed that even people who knew the right answer still fell for the repeated falsehood. What you already know offers little protection here; repetition wins out over it.
A firehose therefore does not need to convince you with arguments. It only needs to put the same thing in front of you often enough, from enough different angles, until it feels familiar. And what feels familiar feels true.
From mass to micro
The second shift is about precision. The old propaganda was a megaphone: the same message for everyone. The modern version is a sniper, delivering the version tuned to your specific fear, identity or anger, segment by segment, rather than one message for the whole population.
Why does that work so well? Because the message does not have to convince you. It only has to confirm what you already wanted to believe. The mechanism is called motivated reasoning. Psychologist Ziva Kunda showed in 1990 that we weigh information from the conclusion we most want emotionally, rather than judging it neutrally.[3] We often look for an excuse to believe what feels good, rather than for the truth.
Give an operation enough data about you and it does not need to invent a lie that talks you round. It only has to find the lie you already wanted to hear, and put it in front of you at the right moment. That is, in essence, what psychographic targeting does. The Cambridge Analytica scandal was about something simpler than hypnosis: finding receptive people at scale, and offering them exactly the friction they were sensitive to.
You are recognised, not talked round.
The target is your System 1, not your opinion
The third shift is about which part of your brain comes under attack. And here the work of Daniel Kahneman helps. In Thinking, Fast and Slow he describes two ways of thinking: System 1, which is fast, automatic and emotional, and System 2, which is slow, deliberate and analytical.[4] Most of what you decide in a day is done by System 1. System 2 is lazy and only kicks in when it really has to.
Modern psyops is optimised to hijack System 1 before System 2 wakes up. It does this through emotion, rather than through argument, because arguments need that slow second system. And above all through the two emotions that most strongly drive sharing and forwarding: anger and fear. A message that makes you angry, you share before you have checked it. That is precisely what it is built on.
And here is the bitter irony. The algorithms of social platforms were not built by hostile powers. They were built to maximise engagement. But engagement and outrage run almost in parallel. What provokes anger gets reach. A disinformation operation therefore does not need to hack the platform. It only needs to make content the algorithm already rewards. The infrastructure of the attack is free, and it is already installed.
"The point of modern propaganda isn't only to misinform or push an agenda. It is to exhaust your critical thinking, to annihilate truth."
— Garry Kasparov, chess grandmaster and political activist
The real goal: doubt, not conviction
Then the fourth and most important shift, because it is the least understood. The most effective modern operation does not sell you a lie. It sells you doubt. It makes sure you believe nothing anymore. And once everything has become equally implausible, the one who already holds power wins by default.
This is not a new idea. The tobacco industry discovered it decades ago. An infamous internal memo from 1969 contained the line "Doubt is our product". The industry did not have to prove that smoking was harmless. It only had to sow enough doubt about the link with cancer to keep people smoking. Science historians Naomi Oreskes and Erik Conway later documented how that same strategy was deployed again and again.[5]
Today doubt arises through a surplus of information, rather than through a lack of it. Old-style censorship, removing information, stands out. The modern version is flooding: producing so much noise that the truth disappears underneath it. According to political scientists Gary King, Jennifer Pan and Margaret Roberts (2017), the Chinese government fabricates an estimated 448 million social media posts a year.[6] The striking thing: those posts barely rebut critics. They distract and change the subject. The tactic is to drown out, rather than to argue.
Russian military doctrine even has a term for steering an opponent's perception so that they freely make the choice that suits you: reflexive control.[7] You manipulate the picture of reality on which the decision rests, rather than the decision itself. The opponent thinks they are choosing freely, and that is precisely the intention.
Philosopher Hannah Arendt saw where this leads back in 1951, long before the internet.
"The ideal subject of totalitarian rule is not the convinced Nazi or the convinced Communist, but people for whom the distinction between fact and fiction and the distinction between true and false no longer exist."
— Hannah Arendt, The Origins of Totalitarianism (1951)
That is the end station of psychological warfare today: a people who can no longer believe anything, worse still than a people who believe the wrong things.
Why this concerns you, even without a uniform
You are not a soldier. You do not live in a war zone. Why should this concern you?
Because the mechanisms I described above are human, rather than military. The illusory truth effect works in your head just as well as in anyone else's. Motivated reasoning steers your judgement of a colleague, a news report, a political claim. The hijacking of System 1 happens every time you share something before you have checked it. These buttons sit inside everyone. The only open question is whether you notice when they are being pushed.
And here is a trap. The intuitive defence is "follow more news" or "be more sceptical". Both backfire. Consuming more information in a firehose environment only adds to the fatigue. And permanent distrust is not sharpness, it is exactly the state the attacker wants: someone who believes nothing is as steerable as someone who believes everything.
The real defence is literacy, rather than scepticism. Understanding how your own brain can be steered. Knowing that repetition feels like truth, so that familiarity is no proof on its own. Knowing that anger makes you share faster, so that a strong emotion is a reason to wait a moment rather than to click through. That is a skill you train, rather than something you pick up once. Telling influence from manipulation starts with recognising the technique while it is being applied to you, which is also where the principles of persuasion become visible.
Behavioural science is usually sold as a way to influence others. But the first person you learn to see through with it is yourself.
Frequently asked questions
What does psyops mean exactly?
Psyops is short for psychological operations: the deliberate shaping of a target audience's perceptions, emotions and behaviour to achieve a strategic goal, without physical force. The term comes from a military context but is now used more broadly for disinformation and influence operations in peacetime.
Is psyops the same as propaganda?
They overlap, but are not identical. Propaganda is the spreading of one-sided information to steer an opinion. Psyops is broader and more operational: it includes propaganda, but also deception, intimidation and the deliberate sowing of doubt or confusion. Modern psyops often aims at your judgement itself, rather than at one specific opinion.
Does psychological warfare really work, or is it overrated?
It works, but differently from what people think. It rarely changes anyone's mind radically. It strengthens existing beliefs, deepens polarisation and exhausts the collective ability to agree on a shared reality. That last effect is subtle, and powerful precisely because of it.
How do I recognise that I am being influenced?
Three signals. One: a message provokes immediate strong anger or fear and pushes you to share. Two: something feels true mainly because you have heard it before, rather than because you know the source. Three: you notice you no longer believe anything at all. That last one feels like sharpness, while it is often the intended effect.
Conclusion
Psychological warfare has not disappeared. It has moved from the bunker to your phone, and it has shifted its goal: from "believe what we believe" to "become so exhausted and divided that you believe nothing". The weapons are cognitive: the illusory truth effect, motivated reasoning, the hijacking of System 1, the sowing of doubt. Each one a mechanism that sits in every human brain.
That sounds bleak, but there is an opening in it. A button you can name is a button that is harder to push. The mechanisms lose force the moment you see them coming. That is why the most important defence against an attack on your judgement is to understand how that judgement is formed.
PS. At SUE we spend our days on how context steers behaviour, usually to help people make better choices. But the same insights expose how you can be steered against your own interest. That strikes me as all the more reason to talk about it, rather than less. That literacy is a form of self-defence.
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