Divide and rule

Divide and rule is the Cardinal's explicit political maxim and a practical method of siegecraft. During the investment of La Rochelle, he tries to break the city's resistance by separating ordinary inhabitants from the leaders who control its resources, presenting royal power as the instrument of fairness while making continued unity appear cruel and irrational.

Definition and Political Logic

The principle appears when the Cardinal recalls the maxim of Louis XI and repeats it as a description of political power: "Divide in order to reign." Its force lies in converting a collective enemy into a set of competing interests. Instead of treating La Rochelle as an indivisible opponent, the Cardinal distinguishes its mayor, its defenders, its families, and its starving population, then addresses each group through a different pressure. Military force creates the crisis; political language assigns blame for it.

The maxim belongs to a wider world in which authority is already divided among rival centers. The citizens of France live amid conflicts between nobles, the king, the Cardinal, Spain, robbers, Huguenots, wolves, and scoundrels. Louis XIII and the Cardinal maintain rival bodies of Musketeers, publicly condemning duels while privately taking pride in the victories of their own men. The principle therefore describes more than a single maneuver at La Rochelle: it reflects a political order in which power is maintained by managing antagonisms rather than eliminating them.

The Siege as an Instrument of Division

The Cardinal's immediate material instrument is the famous dyke, which prevents vessels from entering the besieged city. Although La Rochelle is invested and its defenses appear likely to fail, the blockade may last a long time. Its purpose is therefore not merely to defeat the city in battle but to prolong deprivation until the social body begins to fracture. The city has already attempted a mutiny in favor of surrender; its mayor responds by hanging the mutineers, after which the inhabitants resolve to die of hunger rather than accept strangulation. The siege turns survival itself into a political disagreement.

The Cardinal intensifies that disagreement with written messages thrown over the walls. He tells the Rochellais that their leaders are unjust, selfish, and barbarous because they possess abundant corn but will not distribute it. The argument is designed to redirect anger away from the besieging royal army and toward the internal leadership of the city. It also invokes the most intimate bonds of the community: women, children, and old men are not presented as abstractions but as the defenders' wives, sons, and fathers.

The leaders' stated policy is that civilians may die so long as the men defending the walls remain strong and healthy. Against this calculation, the Cardinal's messages propose a contrary maxim: everyone should be reduced to the same misery, so that equal conditions may produce unanimous decisions. The language of equality is thus used by an absolute political strategist as a weapon. It does not promise relief; it seeks to make the existing leadership morally impossible to obey.

Effects on La Rochelle and the Wider War

The messages achieve the effect the Cardinal expects. A great number of inhabitants begin private negotiations with the royal army. The city does not surrender immediately, but its resistance is no longer politically unified: the blockade has produced separate calculations of duty, family, hunger, and military honor. Divide and rule succeeds first as a change in allegiance and perception, before it succeeds as a formal capitulation.

That success is then threatened by news from outside. An inhabitant who has crossed the royal lines from Portsmouth reports that a magnificent fleet is ready to sail within eight days. The news carries a promise from the Duke of Buckingham that a great league will declare itself against France and that English, Imperial, and Spanish armies will invade the kingdom. Once the letter is publicly read and copied at street corners, even those who had begun negotiations suspend them and decide to await the announced relief. The episode exposes the conditional nature of political division: a population divided by hunger can be reunited by the expectation of external rescue.

The Cardinal's strategy is also shaped by the broader military and institutional crisis. While La Rochelle remains under siege, Louis XIII's army must endure the affront of a prolonged blockade, and the Cardinal must manage disputes involving M. de Bassompierre and the Duc d'Angouleme. The siege is consequently both a military operation and an arena in which royal authority, factional loyalty, foreign intervention, and civilian endurance compete.

Divide and Rule as a General Method of Authority

Elsewhere in the narrative, power repeatedly works by separating persons from protections, information, or lawful procedures. The mousetrap is a secret-arrest system: once a suspected individual is detained, armed men hide in the first room, admit visitors, close the door, and arrest them in turn until nearly all regular inhabitants of the establishment are captured. Its logic is the administrative version of the Cardinal's maxim: isolate one target, conceal the operation, and turn ordinary access into a chain of arrests.

The same political structure appears in the treatment of the Musketeers. M. de Treville reports that police officials have arrested Athos, taken him through the open street, and thrown him into Fort l'Eveque while refusing to show the order authorizing the arrest. The King's answer is to send the case before judges, insisting that judging belongs to them. Yet the conflict reveals the unstable boundary between formal law and executive action: an arrest can be presented as police business, military persecution, or a matter of state, depending on which institution controls the account.

This ambiguity reaches its clearest form in the paper Athos receives from Milady. When she produces the document at the moment he is about to fire, Athos verifies it by the lamp and reads an order dated December 3, 1627, declaring that the bearer has acted by the Cardinal's command and for the good of the state. The paper does not simply divide subjects from rulers; it divides responsibility from action. Violence is carried out by an individual, while political authority supplies retrospective protection through a written authorization.

Significance

The rule's importance lies in its fusion of coercion and consent. The dyke starves La Rochelle, but the Cardinal's notes invite inhabitants to interpret that starvation as the fault of their own leaders. The resulting negotiations are not proof that force has disappeared; they show force working through a manufactured moral choice. Likewise, secret arrests and ambiguous orders preserve the appearance of procedure while allowing exceptional power to decide who counts as an enemy.

The narrative finally places this method beside the danger of unauthorized judgment. When confronted by men who have constituted themselves judges, the Cardinal asks whether those who punish without permission to punish are assassins. The question reveals the principle's darker limit: a state may claim the right to divide, arrest, punish, and pardon, while condemning private actors who imitate those powers. Divide and rule is therefore not merely a maxim of conquest. It is a theory of sovereignty in practice, defining who may create divisions, who may name guilt, and who may convert violence into government.