歐洲協調
The Concert of Europe is typically viewed in two distinct phases: the first from 1814 to through the early 1860s, and the second from the 1880s to 1914. The first phase, particularly before the Revolutions of 1848, is sometimes known as the Age of Metternich, due to the influence of the Austrian chancellor's conservatism and the dominance of Austria within the German Confederation, or as the European Restoration, because of the reactionary efforts of the Congress of Vienna to restore Europe to its state before the French Revolution. The ultimate failure of the Concert of Europe, culminating in the First World War, was driven by various factors including rival alliances and the rise of nationalism. The Congress-focused approach to international affairs continued to be influential in the later League of Nations, the United Nations, the Group of Seven and other multi-lateral summits and organizations.