The Seven Years' War, 1754–1763, spanned four continents, affecting Europe, the Americas, West Africa, and India and the Philippines, in Asia. The conflict split Europe into two coalitions: Kingdom of Great Britain, Prussia, Portugal, Hanover, and other small German states on one side versus the Kingdom of France, Austria-led Holy Roman Empire, Russia, Spain, several small German states, and Sweden on the other. The coalitions represented a "revolution" in diplomatic alliances, reflected in the Diplomatic Revolution. Ultimately, the victory of the Anglo-Prussian coalition undercut the balance of power in Europe, a balance that was not reestablished until 1815.