Nine Years' War

The Nine Years' War (1688-1697), also called the War of the Grand Alliance, was a conflict in which England, the Dutch Republic, Spain, and the Holy Roman Empire formed a coalition to contain Louis XIV's territorial expansion, ending with the Treaty of Ryswick and demonstrating balance-of-power diplomacy.

Verified for the 2027 AP European History examLast updated June 2026

What is the Nine Years' War?

The Nine Years' War (1688-1697) was Louis XIV's second major attempt to push France's borders outward, and Europe's second major attempt to stop him. When French armies moved into the Rhineland, a coalition called the Grand Alliance (England, the Dutch Republic, Spain, and the Holy Roman Empire, among others) banded together to fight back. After nearly a decade of expensive, grinding warfare, the Treaty of Ryswick (1697) forced Louis to give up most of his recent gains.

Here's the big idea the CED cares about. After the Peace of Westphalia (1648), wars stopped being mainly about religion and started being about state interests and keeping any one power from dominating the continent (KC-1.5.II.A). The Nine Years' War is that principle in action. Nobody in the Grand Alliance loved each other; Protestant England and the Dutch fought alongside Catholic Spain and Austria. They allied anyway because France had gotten too strong. That's balance-of-power diplomacy in its purest form. The war also showcased the military revolution (KC-1.5.II.B), since fielding huge infantry armies, mobile cannon, and elaborate fortifications required heavy taxes and bigger bureaucracies, which strained even Louis XIV's absolutist state.

Why the Nine Years' War matters in AP Euro

This term lives in Unit 3 (Absolutism and Constitutionalism), Topic 3.6: Balance of Power, and directly supports learning objective 3.6.A, which asks you to explain how European states established and maintained a balance of power from 1648 to 1815. The Nine Years' War is one of your best go-to examples for that objective because it sits in the middle of a clear pattern. Louis XIV expands, a coalition forms, a treaty restores equilibrium. It also connects to 3.6.B, since the war's massive armies and siege warfare reflect the military revolution and the taxation and bureaucracy needed to pay for it. If an essay prompt asks how diplomacy changed after Westphalia, this war is concrete evidence that religion had faded as a cause of war and that containing dominant powers had taken its place.

How the Nine Years' War connects across the course

Louis XIV (Unit 3)

The Nine Years' War is the middle chapter of Louis XIV's expansion story. His absolutist state could afford huge armies, but each war he started triggered a bigger coalition against him, which is exactly why he's the textbook trigger for balance-of-power politics.

Dutch War (Unit 3)

The Dutch War (1672-1678) was the warm-up. Europe watched Louis attack the Dutch Republic, learned its lesson, and responded to his next move in 1688 with a faster, broader coalition. Practice questions love asking what this repeating pattern reveals about post-1648 statecraft.

Treaty of Ryswick (Unit 3)

Ryswick (1697) ended the war by rolling back most of Louis's gains. It shows that balance-of-power treaties aimed to restore equilibrium, not crush the loser, which is the same logic you'll see later at Utrecht and Vienna.

Grand Alliance (Unit 3)

The coalition itself is the key concept. Protestant and Catholic states allying against France proves the CED's point (KC-1.5.II.A) that dynastic and state interests, not religion, drove warfare after Westphalia.

Is the Nine Years' War on the AP Euro exam?

You're far more likely to see the Nine Years' War in a multiple-choice question than standing alone in an FRQ. MCQ stems typically group it with the Dutch War and the War of Spanish Succession, then ask what the pattern of repeated coalitions against Louis XIV reveals about European statecraft after 1648. The answer they're fishing for is the balance of power replacing religion as the organizing principle of diplomacy. No released FRQ has used this term verbatim, but it's strong supporting evidence for LEQ or DBQ arguments about post-Westphalia diplomacy, the costs of absolutism, or the military revolution. Your job isn't to memorize battles. It's to use the war as evidence that states allied against any power threatening to dominate the continent.

The Nine Years' War vs War of Spanish Succession

Both are coalition wars against Louis XIV, so they blur together easily. The Nine Years' War (1688-1697) was about Louis grabbing territory in the Rhineland and ended at Ryswick with France giving back most of its gains. The War of Spanish Succession (1701-1714) came next and was about whether a Bourbon could inherit the entire Spanish Empire, ending at Utrecht. Quick memory hook: Nine Years' = land grab, Spanish Succession = throne grab.

Key things to remember about the Nine Years' War

  • The Nine Years' War (1688-1697), also called the War of the Grand Alliance, pitted Louis XIV's France against a coalition including England, Spain, the Dutch Republic, and the Holy Roman Empire.

  • The war ended with the Treaty of Ryswick (1697), which forced Louis XIV to surrender most of his territorial gains and restored equilibrium on the continent.

  • Catholic and Protestant states fighting on the same side proves that after Westphalia, state interests and balance-of-power concerns, not religion, drove European warfare (KC-1.5.II.A).

  • The war fits a three-part pattern with the Dutch War and the War of Spanish Succession, where each French expansion triggered a coalition to contain it.

  • The war's enormous armies, sieges, and fortifications reflect the military revolution, which required heavy taxation and larger bureaucracies to sustain (KC-1.5.II.B).

Frequently asked questions about the Nine Years' War

What was the Nine Years' War in AP Euro?

It was a war from 1688 to 1697 in which a coalition called the Grand Alliance (England, Spain, the Dutch Republic, the Holy Roman Empire, and others) fought to contain Louis XIV's expansion into the Rhineland. It ended with the Treaty of Ryswick, which rolled back most French gains.

Did France win the Nine Years' War?

No, not in any meaningful sense. The Treaty of Ryswick (1697) forced Louis XIV to return most of the territory he had seized, and the war drained the French treasury. The coalition succeeded at its goal of restoring the balance of power.

How is the Nine Years' War different from the War of Spanish Succession?

The Nine Years' War (1688-1697) was about Louis XIV's territorial expansion and ended at Ryswick, while the War of Spanish Succession (1701-1714) was about whether Louis's grandson could inherit the Spanish throne and ended at Utrecht. Same villain, same coalition strategy, different prize.

Was the Nine Years' War a religious war?

No, and that's exactly why the AP exam cares about it. Catholic Spain and Austria allied with Protestant England and the Dutch Republic against Catholic France, showing that after the Peace of Westphalia (1648), balance of power and state interests replaced religion as the main driver of European warfare.

Is the Nine Years' War the same as the War of the Grand Alliance?

Yes, they're two names for the same conflict (it's also sometimes called the War of the League of Augsburg). The 'Grand Alliance' name refers to the coalition of powers that formed against Louis XIV.