Concert of Europe
The Concert of Europe arose from the coalitions which fought against revolutionary and Napoleonic France. The Great Powers of Austria, Prussia, Russia and the United Kingdom, had combined with a number of minor powers to defeat Napoleon for the final time in the Hundred Days. In the wake of this victory, these four great powers formalized their partnership in the Quadruple Alliance. In time, the France under the Bourbon Restoration was established as a fifth member of the Concert, after the Congress of Aix-la-Chapelle ended the occupation of France and established the Quintuple Alliance. The Ottoman Empire was later admitted to the Concert of Europe in 1856 with the Treaty of Paris following the Crimean War recognized and guaranteed Ottoman territory.