Xerxes had a throne carried up the slopes of Mount Aigaleo so he could watch his own victory in comfort.
That was quite a sight to behold. The most powerful man on Earth, ruler of an empire stretching from India to Egypt, sitting on a hillside above the sea with scribes kneeling at his feet, ready to record the names of the captains who fought well that day. On paper, he was there to command a battle, but he was more like enjoying one.
Below him, the strait of Salamis. A ribbon of water roughly a mile wide, pinched between the Greek mainland and a small rocky island. Inside that ribbon, a few hundred Greek warships; waiting for him…
…or, so he thought.
It was September of 480 BC and the Greeks were, by any sane accounting, finished. Athens had already fallen, and the smoke from the burning Acropolis was visible from the water; the Greek commanders crammed onto that little island were not planning their glorious stand, but instead, screaming at each other in a war council that kept threatening to dissolve. The Peloponnesians wanted to abandon the position and retreat south to defend their own homes behind a wall; but if the fleet scattered, the war was over.
Everyone knew it.
Xerxes knew it best of all, which is why he was in no hurry. His fleet outnumbered the Greeks something like three to one; all he had to do was wait for his enemies to fall apart, which Greeks could always be counted on to do.
One Athenian commander, Themistocles, understood that the argument in the war council could not be won with more arguing, so… he stopped arguing. That night he sent a single man across the water. Sicinnus, the slave who tutored his children, rowed quietly to the Persian lines carrying a private message for the Great King:
The Greeks are at each other’s throats. They plan to slip away under cover of darkness, and Themistocles himself, seeing which way the wind blows, secretly favors your cause. Seal the exits tonight, and at dawn you will bag the entire Greek fleet without a real fight.
Now, put yourself in Xerxes’s sandals for a moment. A message arrives, at night, from an enemy commander, delivered by a slave, promising you everything you want. Every instinct should scream ‘trap’. Persian kings did not build empires by being naive about deception; they practically invented the genre.
But look closer at what the message actually contained. It told Xerxes that Greeks were fractious, and he already believed that. It told him his enemies were terrified of him. And… he already believed that, too. It told him that smart men defect to the winning side, and his entire court was living proof of it. The message asked him to believe nothing new; it only asked him to act on what his own pride had been whispering for months.
So he believed it, because he needed to.
The order went out: Persian crews rowed all night, sealing both exits of the strait, and at first light the great fleet pushed into the narrows to collect its prize. Hundreds of ships funneled into water with room for dozens. Rams with nowhere to swing. Hulls fouling friendly hulls. Exhausted rowers who had been at their oars since midnight, facing Greeks who had slept, who had trained in that exact water their whole lives, and who now had nowhere left to retreat to, anyway.
By evening, the Persian fleet was wreckage, and the most powerful man on Earth was watching it from a silver-footed throne, while the scribes at his feet recorded something very different from what he had brought them to record.
The strait didn’t win that battle
Every textbook will tell you Salamis was won by geography. Narrow water neutralized superior numbers. And that is true, as far as it goes.
But that strait had been sitting there for ten thousand years before that morning, and it had never won anything by itself. Water has no opinion about who sails into it; the strait only became a weapon at the exact moment a man on the other side chose to enter it, and he chose to enter it because another man had read him correctly: read his pride, read his impatience, read his need to believe that his enemies were already broken. Themistocles did not defeat the Persian navy. He defeated Xerxes’s certainty, and the navy followed it into the rocks.
That gap between the map and the mind is where I work. I have spent sixteen years reading human behavior professionally, and the longer I apply that craft to the people who run the world, the more that gap looks like the most important and least covered territory in all of geopolitics. So I gave it a name.
The definition
Behavioral geopolitics is the discipline of reading the observable behavior of the individuals who hold state power: their signals, their patterns, and their deviations under pressure, in order to explain and forecast the actions of nations. Its core claim is simple: geography sets the board and resources load the stakes, but decisions are made by human beings, and human beings can be read.
If you want it in a single line: behavioral geopolitics is the study of how the psychology and observable behavior of individual leaders drive the decisions of nations.
And if you want it in nine words:
Maps set the board while minds move the pieces.
…but doesn’t geopolitics already cover this?
This is the first objection I hear, and it deserves a straight answer.
Classical geopolitics is built on a quiet ranking: the permanent over the personal. Mountains, rivers, chokepoints, resource deposits, warm-water ports, you name it. The idea is that these things constrain nations so heavily that the individual in charge is almost a rounding error. Tim Marshall wrote a genuinely great book on this premise, Prisoners of Geography, and if you haven’t read it, you should. The board is critical; it will always be, and it would be disingenuous of me to argue otherwise.
But watch what happens when you analyze this closer.
Take the Strait of Hormuz, the most analyzed stretch of water on the planet, the throat through which a fifth of the world’s oil passes. Ask a classical geopolitics analyst about Hormuz and you’ll get depth charts, tanker counts and chokepoint theory. All accurate, and all beside the point when the moment comes. Because Hormuz has hydrography; it does not have actual policy. Water does not mine itself. If someone in Tehran decides to mine it, or toll it, or rattle sabers over it, or leave it alone, and that decision comes out of a human mind operating under pressure, with an ego, a fear of looking weak, a memory of past humiliations, and a succession problem breathing down its neck. Geography sets the menu and the prices, but ultimately, it is a human who orders the main course.
Let’s take a closer look at maps themselves; show me a border that drew itself. The Suez Canal, the Panama Canal, the specific route of every pipeline, nearly every border on Earth: each one was put there by people who decided where it would go… usually over the objections of other people. Half of what we call the “geo” layer today is simply yesterday’s leaders’ decisions hardened into terrain. The map is fossilized behavior. So the geography-first position doesn’t just struggle to predict the future; it can’t even explain its own board without smuggling human decisions back in.
There is also a precedent for exactly this move, and if you have a finance background you lived through it. Economics was always, by its own definition, the study of human choice. Then the field spent decades amputating the human to look more like physics, building elegant models around a perfectly rational actor who has never existed. When Kahneman, Tversky, and Thaler put the human back in, critics said the phrase “behavioral economics” was redundant. Economics is already about behavior, they said; they were… technically right, and it didn’t matter, because the field really had deleted the thing the new word restored. “Behavioral” named the missing organ. Today, the redundant term has a Nobel Prize and a permanent seat at the table.
The word “geopolitics” itself carries the same lesson. It was coined in 1899 with a strict geographic-determinism meaning, spent the 1940s disgraced by the company it kept, and was revived in the 1970s already stripped of determinism, meaning little more than great-power politics. The term has been re-coined before. This is the second time, and this time the re-coining restores what got hollowed out: the human beings holding the pens.
Isn’t this just realism with a new name?
Second objection from a sharper crowd, that also deserves a straight answer.
Go back and read Hans Morgenthau, the father of modern realism. The foundation of Politics Among Nations is explicitly human nature: the drive for power, the lust to dominate, embedded in man himself. Realism began as a psychological claim. Then the field, chasing scientific respectability, did what economics did. It swapped flesh-and-blood leaders for interchangeable “rational actors” maximizing “national interest,” and the human vanished into the equations. Realists already agree with me; they just forgot to say so out loud.
Here is the actual dividing line: Realism describes the game: anarchy, power balancing, security dilemmas. All that is really useful; but realism has no procedure whatsoever for reading an individual. It cannot tell you what to watch in a specific leader’s conduct, which deviations from his own baseline matter, or when his personal pattern is about to override the “rational” move. It treats every player as the same player. Behavioral geopolitics supplies the missing instrument: the observational discipline realism needs and never built. One describes the chessboard while the other studies the man reaching for the piece, and whether his hand is steady.
The test that keeps this honest
Now, the objection I take most seriously, because it’s the one I would raise myself: a framework that can explain everything explains nothing. If every event can be retrofitted with a psychological story, this is astrology in a suit. And I was born in September, so I naturally have doubts about astrology!
But regarding Behavioral Geopolitics, this is why the discipline polices its own boundary with a very simple gate, and I submit every case to this test before including ‘behavioral’ in any of my analyses:
Would swapping the leader have swapped the outcome?
A besieged city, out of food, facing overwhelming force, surrenders. It surrenders under any commander. That outcome belongs to arithmetic, and behavioral geopolitics has no claim on it and should shut up about it. The discipline only activates when the specific mind in the chair changed the result.
February 2022 is the cleanest modern example. Run the material case for invading Ukraine the way a generic rational actor would: the economic exposure, the military risk assessments, the near-certain unification of NATO, the sanctions math. The spreadsheet said no. Nearly every Western government reading that same spreadsheet concluded the invasion wouldn’t happen, precisely because they were modeling a rational actor. One specific man, isolated through two years of pandemic, marinating in a very particular reading of history and legacy, said ‘yes’. Swap the man, and you very plausibly swap the outcome. That is a behaviorally dominant event, and everyone who modeled the board instead of the player got wrong the biggest European call in a generation.
One more boundary so we’re clear about what this discipline is not about. There is no couch here; I don’t diagnose anyone from a distance, and I have no interest in claims about what a leader secretly feels. The raw material is strictly observable: what a man does, what he repeats, and what he stops doing when the pressure arrives. Patterns and deviations. The same evidence available to anyone, read with a method most people overlook.
It is true that I come from a body language reading background, but in this case, our pattern recognition has to be tuned to a higher level, making sure to trace actions and words, because virtually all leaders are good diplomats in person. Their bodies say the civilized thing for the cameras, their words spread the propaganda, and their actions (or lack thereof) are what end up speaking volumes.
Where the reading actually leads us
The beautiful thing about this discipline is that the people we need to read at any given time are few, identifiable, and currently holding the pen over the two biggest repricing events of this decade.
Look at the main characters right now. In Washington, one man’s relationship with headlines and social media can move global markets between breakfast and lunch, which makes his behavioral baseline, and his deviations from it, more predictive than most official statements. In Beijing, power has concentrated to the point where the number of minds worth reading has shrunk… while the weight of each read has multiplied. Moscow already gave us the defining case study of the era. Europe mostly decides by committee, which is precisely why it moves slowest and reads hardest; there’s rarely a single mind to model. And in Abu Dhabi you find the opposite proof of the same theorem: a place where the distance between a decision and its execution is shorter than almost anywhere on Earth, which turns decision-making speed itself into a strategic asset that raw resource endowments can’t buy.
Downstream of all these minds sit the stakes. Energy first: the price of oil and gas has always moved on decisions long before it moves on molecules, and the decisions come from the short list of people above. And now a second, bigger stake stacked on top of the first: the race to build the physical body of artificial intelligence, the power plants, chips, land, cooling, and industrial capacity that AI actually runs on. That race will be decided by a handful of state-level choices about energy and infrastructure…
…which means it will be decided by the readable behavior of the people making them.
That is the full chain of this discipline, and the order never reverses: behavior is the upstream why; energy and physical AI are the downstream stakes. Read the mind, then follow the money it moves.
An honest note about ancestry
I want to be precise about the claim I’m making.
I am not claiming nobody ever noticed that leaders matter. Political psychology has existed in the academy for ages; there are journal papers on leadership traits, scattered essays that have used phrases like this one, entire intelligence agencies with leadership-analysis desks whose work you and I will never see. The ingredients have been lying around for decades.
My claim is consolidation. Nobody has assembled those ingredients into a named, coherent, usable discipline for the person who actually reads the news: a public definition, a scoping test that keeps it falsifiable, and a working method applied in the open, day after day, on the record, where being wrong is visible. That assembled thing did not exist. Now it does, and this page is its foundation stone.
Back to the hillside
So, Xerxes went home; he left his general Mardonius behind to lose the land war, and the greatest invasion force the ancient world had ever assembled, unraveled because one king believed a message that flattered him, delivered by a slave in a rowboat.
Twenty-five centuries later, we have satellites over every strait and depth charts of every chokepoint on Earth, and we still get the biggest calls wrong for the same reason the Great King did: we model the board and ignore the player; because the strait, whether it’s Salamis or Hormuz, was the backdrop, secondary to the throne on the hillside.
Maps set the board while minds move the pieces.
If you want to see the discipline actually working, applied to the people holding the pen right now, that’s what I do here every day.
