Historical background welcoming millionth German colonist in occupied Poland, March 1944. German settlement in the
former eastern territories of Germany and
pre-war Poland dates back to the medieval
Ostsiedlung.
Nazi Germany used the presence and the alleged persecution of
Volksdeutsche as propaganda tools in preparation for the
invasion of Poland in 1939. With the invasion, Poland was partitioned between Germany and the
Soviet Union according to the
Molotov–Ribbentrop Pact. This was followed by population exchanges and included
Baltic Germans who were settled in occupied Poland. The Nazis'
Generalplan Ost strategy for Central and Eastern Europe envisioned the creation of a
Greater Germany, which was to be built through removing a variety of non-Germans from Poland and other areas in Central and Eastern Europe, mainly
Slavs and
Jews believed by Nazis to be
subhuman. These non-Germans were targeted for
slave labor and eventual
extermination. While Generalplan Ost's settlement ambitions did not come into full effect due to the war's turn, millions of Germans, mostly from Central and Eastern Europe, were settled by the Nazis to replace Poles removed or killed during the occupation. Germany deported millions of Poles either to other territories, to concentration camps or as slave workers. A number of others were deported by the Soviet Union during the years 1939-1941, when
Germany and Soviet Union cooperated against Poles. German communities living within the pre-war borders of Poland participated in wartime German activities, starting with the invasion of Poland. Created on order of Reichsführer-SS
Heinrich Himmler, a Nazi
ethnic German organisation called
Selbstschutz carried out mass murder during
Intelligenzaktion alongside operational groups of German military and police. In addition, the German minority engaged in such activities as identifying Poles for execution and illegally detaining them. During World War II, expulsions were initiated by Nazi Germany in occupied Poland. The Germans
deported 2.478 million Polish citizens from the
Polish areas annexed by Nazi Germany,
murdered 1.8 to 2.77 million ethnic Poles and another 2.7 to 3 million
Polish Jews, and resettled 1.3 million ethnic Germans in their place. Around 500,000 Germans were stationed in Poland as part of its occupation force; these consisted of people such as clerks, technicians and support staff. The final decision to move Poland's boundary westward, preconditioning the expulsion of Germans, was made by Britain, the Soviet Union, and the United States at the
Yalta Conference in February 1945, when the Curzon line was irrevocably fixed as the future Polish-Soviet border. The precise location of the Polish western border was left open and, though basically the Allies had agreed on population transfers, the extent remained questioned. Concerning the post-war western frontier of Poland, the agreement simply read: "
If a specific problem such as the frontiers of liberated Poland and the complexion of its government allowed no easy solution, hopes were held out for the future discussion of all outstanding problems in an amicable manner." Upon gaining control of these lands, the Soviet and Polish-Communist authorities started to expel the German population. :
Joseph Stalin (left),
Harry Truman (center),
Winston Churchill (right) In July 1945, at the
Potsdam Conference, the Allies placed most former eastern territories of Germany east of the Oder–Neisse line under Polish administration. Article XIII concerning the transfer of Germans was adopted at the Potsdam Conference in July 1945. It was an emergency measure, drafted and adopted in great haste, a response to the wild expulsions of Germans from Czechoslovakia and Poland, which had created a chaotic situation in the American and British zones of occupation. The Soviet Union transferred territories to the east of the Oder–Neisse line to Poland in July 1945. Subsequently, most of the remaining Germans were expelled to the territories west of the line. President
Harry S. Truman complained that there were now five occupation zones because the Soviets had turned over the area extending along the Oder and western Neisse to Poland and was concerned about Germany's economic control and war reparations. Churchill spoke against giving Poland control over an area in which some eight million Germans lived. Stalin insisted that the Germans had all fled and that the Poles were needed to fill the vacuum. On July 24, the Polish communist delegation arrived in Berlin, insisting on the Oder and western Neisse rivers as the frontier, and they vehemently argued their case before the foreign ministers, Churchill, and Truman, in turn. To the Soviets, reparations were more important than boundaries, and Stalin might have given up on the Poles if they had not so vociferously protested when, in spite of his 'illness', he consulted with them during the evening of July 29.
Polish attitudes With German communities living within the pre-war borders of Poland, there was an expressed fear of disloyalty of Germans in
Eastern Upper Silesia and
Pomerelia, based on wartime German activities. while in 1942 memoranda he expressed concern about Poland acquiring
Lower Silesia, populated with "fanatically anti-Polish Germans". Yet as the war went on, Lower Silesia also became a Polish war aim, as well as occupation of the Baltic coast west of
Szczecin as far as
Rostock and occupation of the
Kiel Canal. However, pressed by Churchill, he was forced to accept the Tehran decision, which was the direct cause of his resignation from his post. The next Polish Prime Minister,
Tomasz Arciszewski claimed that Poland did not "want neither Breslau nor Stettin". Although the Polish government-in-exile was recognised by the Allies at that time, the Soviet Union broke off all diplomatic relations with it in April 1943 after Polish government demanded the investigation of the
Katyn massacre. On April 20, 1944, in Moscow, the Soviet sponsored Polish Communist cell founded the
Polish Committee of National Liberation (PKWN) on Stalin's initiative. Just one week later the representatives of the PKWN and the Soviet Union signed a treaty regulating the new Polish-Soviet border. A year later, before the Potsdam Conference, the western Allies followed Stalin, recognized the Soviet-sponsored government, which accepted the shift of the borders westwards, and withdrew their recognition for the Polish government-in-exile. Poles were classified as sub-humans (Untermenschen) by the Nazis, with their ultimate fate being slavery and extermination, while Germans occupied position of privileged "Uebermenschen" that were to rule over Poles and other nations; when Stanisław Mikołajczyk joined the "Government of National Unity" as a deputy prime minister in 1945, he justified the expulsions of Germans by national terms following communist
Władysław Gomułka, but also as a revolutionary act, freeing the Poles of exploitation by a German middle and upper class. In general, the Polish historiography views the expulsion of Germans as justified and correct, even when describing it as a "lesser evil". ==Flight and evacuation following the Red Army's advance==