The Northern Crusades or Baltic Crusades were Christianization campaigns undertaken by Catholic Christian military orders and kingdoms, primarily against the pagan Baltic, Finnic and West Slavic peoples around the southern and eastern shores of the Baltic Sea, and also against Orthodox Christian East Slavs.
East Prussia was a province of the Kingdom of Prussia from 1773 to 1829 and again from 1878 ; following World War I it formed part of the Weimar Republic's Free State of Prussia, until 1945. Its capital city was Königsberg. East Prussia was the main part of the region of Prussia along the southeastern Baltic Coast.
A fortification is a military construction designed for the defense of territories in warfare, and is used to establish rule in a region during peacetime. The term is derived from Latin fortis ("strong") and facere.
The Kingdom of Prussia constituted the German state of Prussia between 1701 and 1918. It was the driving force behind the unification of Germany in 1866 and was the leading state of the German Empire until its dissolution in 1918. Although it took its name from the region called Prussia, it was based in the Margraviate of Brandenburg. Its capital was Berlin.
Prussia is a historical region in Central Europe on the south-eastern coast of the Baltic Sea, that ranges from the Vistula delta in the west to the end of the Curonian Spit in the east and extends inland as far as Masuria, divided between Poland, Russia and Lithuania.
Prussia was a German state located on most of the North European Plain, also occupying southern and eastern regions. It formed the German Empire when it united the German states in 1871. It was de facto dissolved by an emergency decree transferring powers of the Prussian government to German Chancellor Franz von Papen in 1932 and de jure by an Allied decree in 1947. For centuries, the House of Hohenzollern ruled Prussia, expanding its size with the Prussian Army. Prussia, with its capital at Königsberg and then, when it became the Kingdom of Prussia in 1701, Berlin, decisively shaped the history of Germany.
The former eastern territories of Germany refer in present-day Germany to those territories east of the current eastern border of Germany, i.e., the Oder–Neisse line, which historically had been considered German and which were annexed by Poland and the Soviet Union after World War II in Europe. In most of these territories, Germans used to be the dominant or sole ethnicity. In contrast to the lands awarded to the restored Polish state by the Treaty of Versailles after World War I, the German territories lost with the Potsdam Agreement after World War II in Europe on 2 August 1945 were either almost exclusively inhabited by Germans before 1945, mixed German-Polish with a German majority, or mixed German-Czech with a German majority (Glatz). Virtually the entire German population of the territories that did not flee voluntarily in the face of the Red Army advance of 1945, was violently expelled to Germany, with their possessions being seized and looted.
The War of the Fourth Coalition was a war spanning 1806-1807 that saw a multinational coalition fight against Napoleon's French Empire, subsequently being defeated. The main coalition partners were Prussia and Russia with Saxony, Sweden, and Great Britain also contributing. Excluding Prussia, some members of the coalition had previously been fighting France as part of the Third Coalition, and there was no intervening period of general peace. On 9 October 1806, Prussia declared war on France and joined a renewed coalition, fearing the rise in French power after the defeat of Austria and establishment of the French-sponsored Confederation of the Rhine in addition to having learned of French plans to cede Prussian-desired Hanover to Britain in exchange for peace. Prussia and Russia mobilized for a fresh campaign with France, massing troops in Saxony.
Modlin Fortress is one of the largest 19th-century fortresses in Poland. It is located in the town of Nowy Dwór Mazowiecki in district Modlin on the Narew river, approximately 50 kilometers north of Warsaw. It was originally constructed by the French from 1806 to 1812.
The military history of the Russian Empire encompasses the history of armed conflict in which the Russian Empire participated. This history stretches from its creation in 1721 by Peter the Great, until the Russian Revolution (1917), which led to the establishment of the Soviet Union. Much of the related events involve the Imperial Russian Army, Imperial Russian Navy, and from the early twentieth century, the Imperial Russian Air Service.
Vladimir Aleksandrovich Sukhomlinov was a Russian general in the Imperial Russian Army who served as the Chief of the General Staff from 1908 to 1909 and the Minister of War from 1909 to 1915.
The Fortress of Luxembourg is the former fortifications of Luxembourg City, the capital of the Grand Duchy of Luxembourg, which were mostly dismantled beginning in 1867. The fortress was of great strategic importance for the control of the Left Bank of the Rhine, the Low Countries, and the border area between France and Germany.
Poznań Fortress, known in German as Festung Posen was a set of fortifications in the city of Poznań in western Poland, built under Prussian rule in the 19th and early 20th centuries. It represents the third largest system of its kind in Europe.
Toruń Fortress is a historic fortress located in Toruń, Poland, one of the largest fortresses in Central and Eastern Europe.
The Seven Years' War (1756–1763) was a global conflict involving most of the European great powers, fought primarily in Europe and the Americas. One of the opposing alliances was led by Great Britain, primarily supported by Prussia. The other alliance was led by France, backed by Spain, Saxony, Sweden, and Russia. Related conflicts include the 1754 to 1763 French and Indian War, and 1762 to 1763 Anglo-Spanish War.
The Germanisation of the Province of Posen was a policy of the Kulturkampf measures enacted by German Chancellor Otto von Bismarck, whose goal was to Germanize Polish-speaking areas in the Prussian Province of Posen by eradicating and discrimination of Polish language and culture, as well as to reduce the influence of the "ultramontanist" Roman Catholic clergy in those regions.
Under the terms of the 1815 Peace of Paris, France was obliged to pay for the construction of a line of fortresses to protect the German Confederation against any future aggression by France. All fortresses were located outside Austria and Prussia — the two biggest, bickering powers of the Confederation.
The Fort de Mutzig, also known as Feste Kaiser Wilhelm II, is located near the town of Mutzig, in the Bas-Rhin department of France. It is one of the fortifications built by Germany at the end of the 19th century to defend Strasbourg.
Fort Srebrna Góra or Srebrnogórska Fortress is a former military fort, now a monument and a museum, located in the village of Srebrna Góra, Lower Silesian Voivodeship, Poland. It was constructed in 1765–1777 when the territory was part of the Kingdom of Prussia.
A polygonal fort is a type of fortification originating in France in the late 18th century and fully developed in Germany in the first half of the 19th century. Unlike earlier forts, polygonal forts had no bastions, which had proved to be vulnerable. As part of ring fortresses, polygonal forts were generally arranged in a ring around the place they were intended to protect, so that each fort could support its neighbours. The concept of the polygonal fort proved to be adaptable to improvements in the artillery which might be used against them, and they continued to be built and rebuilt well into the 20th century.
