The Nine Years' War was a European great power conflict from 1688 to 1697 between France and the Grand Alliance. Fought primarily in Europe, related conflicts include the Williamite war in Ireland, and King William's War in North America.
The 1678 Treaty of Nijmegen that ended the Franco-Dutch War was the highpoint of the French expansionist policies pursued by Louis XIV. Over the next few years, he continued attempts to strengthen France's frontiers, culminating in the 1683 to 1684 War of the Reunions. The Truce of Ratisbon guaranteed these new borders for twenty years, but concerns among European Protestant states over French expansion and anti-Protestant policies led to the creation of the Grand Alliance, headed by William of Orange.