Charles, Duke of Burgundy, inherited an empire in 1467 — Flanders, Holland, Zeeland, Luxembourg, and Burgundy itself — and two obstacles to the German conquests he wanted. The Swiss cantons to his east, fierce but small. And his cousin Louis XI of France, his rival since childhood.
Charles was not worried about Louis. Greene renders his reasoning exactly as Charles would have:
After all, Louis was weak, even a little soft in the head. How else to explain his strange infatuation with the Swiss cantons?1
Because that is the thing that made no sense. From the beginning of his reign Louis had courted the Swiss assiduously, treating them almost like equals to France, when there were far more powerful states available. Maybe he felt an affinity with their simple life; for a king he had rather peasant tastes. And he hated war — he preferred to buy peace, even at a high price, than to fund an army.1
A king who won't fight, spending his diplomacy on mountain farmers. Charles read all of it correctly as fact and completely wrong as meaning.
It was a good plan, which is worth saying, because the case is usually told as though Charles were a fool.
Move into Alsace and swallow the weak kingdoms there. Then ally with Edward IV of England, who would land a large army at Calais. Link up at Reims in central France, crown Edward king of France, dispose of Louis's weak army between them. Then Charles marches east across the Swiss cantons while Edward marches south, and together they are the dominant power in Europe.1
By 1474 it was all in place and Edward had signed on.
Then, just as Charles began manoeuvring on the upper Rhine, a large Swiss army invaded Burgundy — funded by Louis XI.1
Charles read that correctly too, as a warning shot about any future invasion of the cantons. He had enough troops at home to drive them out. And he drew the obvious conclusion: he was not a man to provoke in such a way; both parties would more than pay for their rash invasion.1
Which is the moment the trap closes, because the invasion was not a warning. It was the goad.
Summer 1475. The largest English army ever assembled for an invasion of France lands at Calais under Edward personally. Charles meets him, they finalise plans and toast the conquest, and Charles hurries back to his own troops marching south through Lorraine toward the linkup at Reims.1
Then the news from his spies at the French court.
Louis had opened secret negotiations with Edward. He had persuaded the English king that Charles was using him and could not be trusted. He knew England's finances were weak, so he offered generous peace terms amounting to a large annual pension paid directly to the king and his court. He entertained the English with great feasts of food and ale.1
And then, to the duke's utter disgust and amazement, Edward fell for it, signed the treaty, and took his forces home.1
Greene's Interpretation on the accounting is the part worth stealing:
Again thinking far in advance, Louis knew that when he eventually swallowed up the wealthy duchy of Burgundy, he would more than recoup what he was having to pay Edward.1
He did not defeat the largest army in Europe. He rented it away, on credit against territory he had not taken yet.
Charles is now isolated and still burning about the Swiss raid. And Louis, having just wrecked him, sends envoys proposing a long-term truce between France and Burgundy.
Charles's reading, which Greene gives us in his voice: this was typical of the king—everything he did was inconsistent and contradictory. What was he thinking? And then, fatally: signing means he can march against the Swiss knowing France will not interfere. Perhaps the king was guided by his great fear of war?1
He signed happily.
The truce was not a reprieve. It was the removal of the last obstacle between Charles and the thing that would kill him. Every earlier move had been aimed at getting him to want to invade the cantons; this one cleared his rear so he could.
And the Swiss, who had been Louis's friends for a decade, were outraged — abandoned at the moment of peril.1 They mobilised every available man, which is precisely what Louis needed them to do.
Winter 1477, impatient for victory, Charles crossed the Jura and found the Swiss waiting near Grandson.
It opens with sound — the alarming bellow of Swiss battle horns, which echoed in the mountains, creating a frightening din. Then thousands of men coming down the slope in perfect precision, packed tight in phalanxes, enormous pikes sticking out like the spines of a giant hedgehog in motion, flanks and rear covered by halberdiers swinging spiked battle-axes.1
Charles threw cavalry at them, attack after attack, and watched it slaughtered. His artillery could not be manoeuvred in the mountains. The phalanxes were impenetrable. Then a reserve force hidden in the woods on his right came out, and the retreat became a rout.1
He escaped that one. A few months later the Swiss marched into Lorraine, he counterattacked in January 1478 with what he had left, and was routed again.
His body was finally identified on the field of battle, his head cloven in two by a Swiss halberd, his body pierced by pikes.1
Louis swallowed Burgundy within months. The last great feudal obstacle to a unified France was gone.
Greene's Interpretation is the clearest statement of the method anywhere in the chapter.
Louis — later called the Spider King for the elaborate webs he would weave to ensnare his opponents — had one goal: turn France from a feudal state into a unified power. Burgundy was the obstacle and could not be met head-on, because his army was weaker and he did not want a civil war.1
The critical piece of prior knowledge:
Before he became king, though, Louis had fought a short campaign against the Swiss and had seen the brutal efficiency with which their phalanxes fought and how they used their mountainous terrain to perfect advantage. He thought them unbeatable in war.1
So the whole decade-long design has a single premise: Louis formed a plan to bait Charles into invading the cantons, where his military machine would be destroyed.1
Every strand served it. Years of courting the Swiss — forging bonds that blinded them to his purpose, and simultaneously befuddling the arrogant duke, who could not imagine how Louis planned to make use of such an ally. The 1474 invasion, calculated so the duke would lose all patience in his desire for revenge. Edward bought off rather than fought. The truce clearing the last obstacle.
And Greene's summary, which names the cost and admires it in one breath:
This new treaty would infuriate his Swiss friends, but what did Louis care? Friendship meant little to him; the Swiss would fight to defend their land with or without him. Patient and clear about his goals, Louis used alliances as a form of bloodless warfare, crushing his opponents by getting others to do his work for him.1
Bloodless is the word to hold. Greene means no French blood.
Someone stronger than you is going to move against you, and meeting them directly loses.
Start where Louis started, which is not with them. Find the thing that would beat them that isn't you. Louis's entire plan rests on one piece of first-hand knowledge — he had personally seen Swiss phalanxes fight and concluded they were unbeatable in their own mountains. That judgement is the whole strategy. Everything else is logistics.
Then cultivate that thing early, publicly, and for reasons nobody can decode. The decade of courting the Swiss did two jobs at once: it built a real relationship, and it made Louis look eccentric. Being visibly interested in something that makes no strategic sense to your rival is not a cost; it is the concealment.
Then make them want to go there. This is the move most people skip, and Louis spends actual money on it — funding an invasion of his own ally's target, purely so the duke would lose patience. You are not steering someone toward a decision. You are manufacturing the grievance that makes the decision feel like their own idea.
Then buy off the reinforcement rather than fighting it. Edward's army was the strongest thing on the board and it went home for a pension, priced against territory Louis did not yet own. Ask what the intervening party actually wants, because it is very often cheaper than the war, and cheaper still if you are paying out of the winnings.
Then clear their path. Counter-intuitive and decisive: the last thing Louis does before Charles marches to his death is remove an obstacle for him. If you have set something up properly, the final act is not resistance — it is getting out of the way, visibly, so nothing interrupts the momentum.
And know the ledger you are keeping. The Swiss died at Grandson and in Lorraine. Louis lost nobody. If you run this, someone is doing the fighting, and the question of whether they know what they're in is not one the strategy asks for you.
The narrative is accurate: the 1474 Swiss invasion of Burgundy with French backing, the 1475 Treaty of Picquigny under which Edward IV accepted a pension and withdrew, Grandson in 1476, Charles's death at Nancy in January 1477, and the French absorption of the duchy. [POPULAR SOURCE]
Greene has the dates a year out and it doesn't affect the argument. He places Grandson in "the dead of the winter of 1477" and Charles's death in January 1478; Grandson was March 1476 and Charles died at Nancy on 5 January 1477. Noted for accuracy, not as a flaw in the reading.
The design attribution is doing a great deal of work. This is the book's retrospection problem in its most seductive form, because the outcome is so clean that a decade of separate decisions reads inevitably backward. Louis's Swiss policy is well attested and so is his preference for money over armies — but the claim that the courtship of the cantons was from the beginning a device for destroying Burgundy is an interpretation of intent across ten years, and Greene states it as fact. The alternative reading — that Louis cultivated options patiently, and took the one that presented itself — is less impressive and fits the evidence just as well. 🚩 SINGLE SOURCE on the plan-as-designed.
The Swiss are the case's actual subject and never its subject. They are courted for a decade, funded into an invasion, abandoned by treaty at the moment of maximum danger, and then win two battles at their own cost that hand France its unification. Greene's only remark on their position is that friendship meant little to Louis and they would have fought anyway. The chapter is titled around finding the perfect ally, and its exemplar is a man who spent one. Whether the Swiss were used or merely aligned is exactly the question the chapter needs and never asks — and it is the question every reader will actually face, since most people are far likelier to be somebody's Swiss than somebody's Louis.
Against Louis XI and the Indirect Threat this is the same king seventeen chapters apart and the pairing is useful. That page holds the tactical Louis — the tirade staged where the Milanese ambassador would overhear it, then the false reassurance. This page holds the strategic Louis across a decade. Same instinct at two scales: never say the thing to the person it is aimed at.
Against Strategy 27: The Alliance Strategy this case supplies the chapter's own counter-example and Greene uses it as one without following through. He warns readers against the single powerful ally who drops you when your usefulness is exhausted — "just as Louis dropped the Swiss" — in a chapter whose hero is Louis. The warning and the model are the same man.
Against Philip of Macedon and Negotiation as Advance the convergence is exact and separated by eighteen centuries: a treaty signed specifically to enable the next move, with the signature itself as the weapon. Philip promised Amphipolis and then took it; Louis granted a truce so the duke would march somewhere he could be killed.
Against Strategy 9: The Counterattack Strategy the 1474 invasion is a provocation designed to produce a specific overreaction, which is Strategy 9's method appearing eighteen chapters early — and here it is aimed not at a battlefield decision but at a ten-year strategic choice, which is a considerably more ambitious use than that chapter contemplates.
Behavioral mechanics → Eccentricity as cover. Charles's fatal misreading was not of a plan but of a person: Louis's Swiss policy looked like sentimentality, and sentimentality in a king reads as weakness. The vault's Strategy 23: Misperception Strategies holds the rule that a deception must mirror reality and be banal, and that it works best aimed at what the target already believes.
The pairing produces something neither states: an unexplained genuine preference is a better cover than any constructed one, because there is nothing false in it to detect. Louis really did prefer buying peace to funding armies, and really did have peasant tastes. Charles was not deceived by a lie; he was deceived by a true fact he could only fit into one category. This is a sharper defensive lesson than "watch for deception" — when a rival's behaviour looks merely eccentric, the safe assumption is not that they are foolish but that you are missing the frame in which it is rational, and the tell is precisely that it is consistent eccentricity, maintained at cost, over years.
Psychology → Impatience as the exploitable constant. The 1474 invasion was calculated to make Charles lose all patience in his desire for revenge, and Louis timed nothing else so carefully. The vault's Grandiose Humility and the Grandiose Victim holds the adjacent case — a self-concept so load-bearing that it operates whether or not it serves the person.
Together they produce the operative insight: you cannot make a competent opponent decide badly, but you can make them decide early, and earliness is usually sufficient. Charles's plan was sound; what killed it was crossing the Jura in winter, impatient, on a schedule set by an insult rather than by conditions. The general form is that the reliable attack on a capable rival is not on their judgement but on their timing, because judgement is defended and tempo is not — and the input required is an affront, which is cheap. Which also supplies the defence, and it is unglamorous: any decision you are making sooner than you planned to, because of something someone did to you, should be assumed to be the one they wanted.
Louis never fought Charles. He found the thing that could beat him, spent ten years making it available, spent money making Charles want to walk into it, and then removed the last obstacle so nothing would slow him down. The whole design rests on one first-hand judgement made years earlier about who was actually unbeatable, and everything else is patience.