Treaty of the Cession of the Memel Territory to Germany (1939)
Molotov–Ribbentrop Pact (1939)
World War II
Großdeutschland
Protectorate of Bohemia and Moravia
Polish areas annexed by Nazi Germany
General Government
Zone interdite
German–Soviet Border and Commercial Agreement (1941)
Tehran Conference (1943)
Moscow Conference and Declaration on Austria (1943)
Yalta Conference (1945)
Potsdam Conference (1945)
Post-World War II
Berlin Declaration (1945)
Potsdam Agreement (1945)
Luxembourg's annexations (1946 and 1949)
Saar Protectorate (1947)
Paris Protocol (1949)
Dutch annexation of Elten and Selfkant (1949)
Belgian annexations (1949)
Esrablishment of East and West Germany (1949)
Treaty of Zgorzelec (1950)
Minor territorial exchanges between East Germany and Poland (1949 and 1951)
Bonn–Paris conventions and de facto return of Heligoland from the UK (1952)
Return of Kehl from France (1953)
London and Paris Conferences (1954)
Austrian State Treaty (1955)
Saar Treaty (1956)
"Little Reunification" with Saarland (1957)
Belgium–Germany border treaty and return of the majority of annexations (1958)
Return of Kammerwald from Luxembourg (1959)
Ausgleichsvertrag (1960)
Return of Selfkant (1963)
Polish–East German Baltic Continental Shelf Delimitation Treaty (1968)
Treaty of Moscow (1970)
Treaty of Warsaw (1970)
Four Power Agreement on Berlin (1971)
Basic Treaty (1972)
Treaty of Prague (1973)
United Nations Security Council Resolution 335 (1973)
Polish–East German Maritime Boundary in Pomeranian Bay Delimitation Treaty (1989)
German–Polish Border Treaty (1990)
Two Plus Four Treaty (1991)
Treaty of Good Neighbourship (1991)
Areas and issues
Alsace–Lorraine
Former eastern territories of Germany
German question
Hallstein Doctrine
Drang nach Osten
Lebensraum
Ostpolitik
Adjacent countries
Territorial evolution of France
Territorial evolution of Poland
Territorial evolution of Switzerland
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The territorial evolution of Germany in this article include all changes in the modern territory of Germany from its unification making it a country on 1 January 1871 to the present although the history of "Germany" as a territorial polity concept and the history of the ethnic Germans are much longer and much more complex. Modern Germany was formed when the Kingdom of Prussia unified most of the German states, with the exception of multi-ethnic Austria (which was ruled by the German-speaking royal family of Habsburg and had significant German-speaking land), into the German Empire.[1] After the First World War, on 10 January 1920, Germany lost about 13% of its territory to its neighbours (not including its colonies Germany also lost at the same time[2]), and the Weimar Republic was formed two days before this war was over. This republic included territories to the east of today's German borders.
The period of Nazi rule from the early 1930s through the end of the Second World War brought significant territorial losses for the country. Nazi Germany initially expanded the country's territory dramatically and conquered most of Europe, though not all areas were added to Germany officially. However, the Nazi plan for the near future was the establishment of a Greater Germanic Reich[3][4] including most of Europe. The Nazi regime eventually collapsed, and the four Allies occupied Germany.
Nazi annexations from the time of its annexation of Austria on 13 March 1938 were annulled while the former eastern territories of Germany before Nazi annexation of Austria were ceded to Poland and the Soviet Union and the Oder and Neisse Rivers became Germany's new eastern boundary. This territory became Poland's so-called "Recovered Territories", while approximately one-third of East Prussia became the Russian Federation's Kaliningrad Oblast. In the west, the Saar area (Saarland) formed one French-controlled protectorate with its own high autonomy.
The western part of Germany was unified as the Trizone, becoming the Federal Republic of Germany on 23 May 1949 ("West Germany"). Western-occupied West Berlin declared its accession to the Federal Republic of Germany in 1949 but was denied by the occupying powers. The Soviet zone of Germany in the east, including the Soviet sector of Berlin, became the communist German Democratic Republic ("East Germany") on 7 October of the same year.[1] on 1 January 1957, the Saar Protectorate (which was separated from Germany on 17 December 1947) became a part the Federal Republic of Germany,[5] as provided by its Grundgesetz (constitution) article no. 23 ("Little reunification"). East Germany, including East Berlin, became parts the Federal Republic of Germany on 3 October 1990 – an event referred to as German reunification.[1]
^ abcTimeline: Germany - BBC News
^Authaler, Caroline (2019). "Das völkerrechtliche Ende des deutschen Kolonialreichs. Globale Neuordnung und transnationale Debatten in den 1920er Jahren und ihre Nachwirkungen". Aus Politik und Zeitgeschichte. 69 (40–42): 5 f. Archived from the original on 4 April 2022. Retrieved 4 April 2022.
^Cowie, Stuart (ndg) "To what extent was the outbreak of World War Two, a consequence of failures in British Foreign Policy?" Academia.edu
^Barry, Max (ndg) "Großgermanisches Reich der Deutschen Nation" NationStates
^Rearmament and the European Defense Community Library of Congress Country Studies
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