International relations (1814–1919)This article covers worldwide diplomacy and, more generally, the international relations of the great powers from 1814 to 1919. This era covers the period from the end of the Napoleonic Wars and the Congress of Vienna (1814–1815), to the end of the First World War and the Paris Peace Conference (1919–1920). Important themes include the rapid industrialization and growing power of Great Britain, the United States, France, Prussia/Germany, and, later in the period, Italy and Japan.
International relations (1648–1814)International relations from 1648 to 1814 covers the major interactions of the nations of Europe, as well as the other continents, with emphasis on diplomacy, warfare, migration, and cultural interactions, from the Peace of Westphalia to the Congress of Vienna. Balance of power: The concept of the balance of power emerged as a fundamental principle in international relations during this period. Major powers sought to maintain a delicate equilibrium to prevent the domination of any single state or coalition, often leading to alliances, territorial adjustments, and military interventions.
Concert of EuropeThe Concert of Europe was a general consensus among the great powers of 19th-century Europe to maintain the European balance of power, political boundaries, and spheres of influence. Never a perfect unity and subject to disputes and jockeying for position and influence, the Concert was an extended period of relative peace and stability in Europe following the Wars of the French Revolution and Napoleonic Wars which had consumed the continent since the 1790s. There is considerable scholarly dispute over the exact nature and duration of the Concert.
European wars of religionThe European wars of religion were a series of wars waged in Europe during the 16th, 17th and early 18th centuries. Fought after the Protestant Reformation began in 1517, the wars disrupted the religious and political order in the Catholic countries of Europe, or Christendom. Other motives during the wars involved revolt, territorial ambitions and great power conflicts. By the end of the Thirty Years' War (1618–1648), Catholic France had allied with the Protestant forces against the Catholic Habsburg monarchy.