 Using a combination of aggression, annexation, and quasilegal means, Louis XIV set about extending his gains to stabilize and strengthen France's frontiers, culminating in the brief War of the Reunions (1683–84).The resulting Truce of Ratisbon guaranteed France's new borders for 20 years, but Louis XIV's subsequent actions – notably his revocation of the Edict of Nantes in 1685 – led to the deterioration of his military and political dominance.Louis XIV's decision to cross the Rhine in September 1688 was designed to extend his influence and pressure the Holy Roman Empire into accepting his territorial and dynastic claims, but when Leopold I and the German princes resolved to resist, and when the States General and William III brought the Dutch and the English into the war against France, the French King at last faced a powerful coalition aimed at curtailing his ambitions.