The later stages of World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, and the period after the end of that war, saw the forced migration of millions of German nationals (Reichsdeutsche) and ethnic Germans (Volksdeutsche

Volksdeutsche

Volksdeutsche - "German in terms of people/folk" -, defined ethnically, is a historical term from the 20th century. The words volk and volkische conveyed in Nazi thinking the meanings of "folk" and "race" while adding the sense of superior civilization and blood...

) from various European states and territories, mostly into the areas which would become post-war Germany and post-war Austria. These areas included pre-war German provinces which were transferred to Poland

People's Republic of Poland

The People's Republic of Poland was the official name of Poland from 1952 to 1990. Although the Soviet Union took control of the country immediately after the liberation from Nazi Germany in 1944, the name of the state was not changed until eight years later...

 and the Soviet Union

Soviet Union

The Soviet Union , officially the Union of Soviet Socialist Republics , was a constitutionally socialist state that existed in Eurasia between 1922 and 1991....

 after the war, as well as areas which Nazi Germany

Nazi Germany

Nazi Germany , also known as the Third Reich , but officially called German Reich from 1933 to 1943 and Greater German Reich from 26 June 1943 onward, is the name commonly used to refer to the state of Germany from 1933 to 1945, when it was a totalitarian dictatorship ruled by...

 had annexed or occupied in pre-war Poland

Second Polish Republic

The Second Polish Republic, Second Commonwealth of Poland or interwar Poland refers to Poland between the two world wars; a period in Polish history in which Poland was restored as an independent state. Officially known as the Republic of Poland or the Commonwealth of Poland , the Polish state was...

, Czechoslovakia

Czechoslovakia

Czechoslovakia or Czecho-Slovakia was a sovereign state in Central Europe which existed from October 1918, when it declared its independence from the Austro-Hungarian Empire, until 1992...

, Hungary

Hungary

Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

, Romania

Romania

Romania is a country located at the crossroads of Central and Southeastern Europe, on the Lower Danube, within and outside the Carpathian arch, bordering on the Black Sea...

, northern Yugoslavia

Yugoslavia

Yugoslavia refers to three political entities that existed successively on the western part of the Balkans during most of the 20th century....

 and other states of Central

Central Europe

Central Europe or alternatively Middle Europe is a region of the European continent lying between the variously defined areas of Eastern and Western Europe...

 and Eastern Europe

Eastern Europe

Eastern Europe is the eastern part of Europe. The term has widely disparate geopolitical, geographical, cultural and socioeconomic readings, which makes it highly context-dependent and even volatile, and there are "almost as many definitions of Eastern Europe as there are scholars of the region"...

.

The movement of Germans involved a total of at least 12 million people, with some sources putting the figure at 14 million, and was the largest movement or transfer of any population in modern European history.