The Potsdam Conference was held at Potsdam in the Soviet occupation zone from July 17 to August 2, 1945, to allow the three leading Allies to plan the postwar peace, while avoiding the mistakes of the Paris Peace Conference of 1919. The participants were the Soviet Union, the United Kingdom, and the United States. They were represented respectively by General Secretary Joseph Stalin, Prime Ministers Winston Churchill and Clement Attlee, and President Harry S. Truman. They gathered to decide how to administer Germany, which had agreed to an unconditional surrender nine weeks earlier. The goals of the conference also included establishing the postwar order, solving issues on the peace treaty, and countering the effects of the war.
The Potsdam Agreement was the agreement among three of the Allies of World War II: the United Kingdom, the United States, and the Soviet Union after the war ended in Europe on 1 August 1945 and it was published the next day. A product of the Potsdam Conference, it concerned the military occupation and reconstruction of Germany, its border, and the entire European Theatre of War territory. It also addressed Germany's demilitarisation, reparations, the prosecution of war criminals and the mass expulsion of ethnic Germans from various parts of Europe. France was not invited to the conference but formally remained one of the powers occupying Germany.
Bolesław Bierut was a Polish communist activist and politician, leader of communist-ruled Poland from 1947 until 1956. He was President of the State National Council from 1944 to 1947, President of Poland from 1947 to 1952, General Secretary of the Central Committee of the Polish United Workers' Party from 1948 to 1956, and Prime Minister of Poland from 1952 to 1954. Bierut was a self-educated person. He implemented aspects of the Stalinist system in Poland. Together with Władysław Gomułka, his main rival, Bierut is chiefly responsible for the historic changes that Poland underwent in the aftermath of World War II. Unlike any of his communist successors, Bierut led Poland until his death.
Władysław Gomułka was a Polish Communist politician. He was the de facto leader of post-war Poland from 1947 until 1948, and again from 1956 to 1970.
The Polish People's Republic was a country in Central Europe that existed from 1947 to 1989 as the predecessor of the modern-day Republic of Poland. From 1947 to 1952 it was known as the Republic of Poland, and it was also often simply known as Poland. With a population of approximately 37.9 million near the end of its existence, it was the second most-populous communist and Eastern Bloc country in Europe. A unitary state with a Marxist–Leninist government, it was also one of the main signatories of the Warsaw Pact alliance. The largest city and official capital since 1947 was Warsaw, followed by the industrial city of Łódź and cultural city of Kraków. The country was bordered by the Baltic Sea to the north, the Soviet Union to the east, Czechoslovakia to the south, and East Germany to the west.
The Polish Workers' Party was a communist party in Poland from 1942 to 1948. It was founded as a reconstitution of the Communist Party of Poland (KPP) and merged with the Polish Socialist Party (PPS) in 1948 to form the Polish United Workers' Party (PZPR). From the end of World War II the PPR led Poland, with the Soviet Union exercising moderate influence. During the PPR years, the centers of opposition activity were largely diminished, and a socialist system was established in the country.
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 expelled to Germany, with their possessions being expropriated.
At the end of World War II, Poland underwent major changes to the location of its international border. In 1945, after the defeat of Nazi Germany, the Oder–Neisse line became its western border, resulting in gaining the Recovered Territories from Germany. The Curzon Line became its eastern border, resulting in the loss of the Eastern Borderlands to the Soviet Union.
Western betrayal is the view that the United Kingdom, France, and sometimes the United States failed to meet their legal, diplomatic, military, and moral obligations with respect to the Czechoslovak and Polish states during the prelude to and aftermath of World War II. It also sometimes refers to the treatment of other Central and Eastern European states at the time.
The entirety of Germany was occupied and administered by the Allies of World War II from the Berlin Declaration on 5 June 1945 to the establishment of West Germany on 23 May 1949. Unlike occupied Japan, Germany was stripped of its sovereignty and former state: after Nazi Germany surrendered on 8 May 1945, four countries representing the Allies asserted joint authority and sovereignty through the Allied Control Council (ACC). At first, Allied-occupied Germany was defined as all territories of Germany before the 1938 Nazi annexation of Austria; the Potsdam Agreement on 2 August 1945 defined the new eastern German border by giving Poland and the Soviet Union all regions of Germany east of the Oder–Neisse line and divided the remaining "Germany as a whole" into four occupation zones, each administered by one of the Allies.
The Rapacki Plan was a proposal presented in a speech by Polish Foreign Minister Adam Rapacki to the United Nations General Assembly on 2 October 1957 as a limited plan for nuclear disarmament and demilitarization in Central Europe by establishing a nuclear-free zone. The plan declared that the People's Republic of Poland would not station or produce any nuclear armaments within their territory, if the Federal Republic of Germany and the German Democratic Republic agreed to do the same. Czechoslovakia would later include itself in support of the nuclear-free zone. The plan followed attempts by both Western Powers and the Soviet Union to de-escalate Cold War tensions and push for greater disarmament during the mid 1950s.
The flight and expulsion of Germans from Poland was the largest of a series of flights and expulsions of Germans in Europe during and after World War II. The German population fled or was expelled from all regions which are currently within the territorial boundaries of Poland: including the former eastern territories of Germany annexed by Poland after the war and parts of pre-war Poland; despite acquiring territories from Germany, the Poles themselves were also expelled from the former eastern territories of Poland annexed by the Soviet Union. West German government figures of those evacuated, migrated, or expelled by 1950 totaled 8,030,000. Research by the West German government put the figure of Germans emigrating from Poland from 1951 to 1982 at 894,000; they are also considered expellees under German Federal Expellee Law.
Polish October, also known as October 1956, Polish thaw, or Gomułka's thaw, marked a change in the politics of Poland in the second half of 1956. Some social scientists term it the Polish October Revolution, which was less dramatic than the Hungarian Revolution of 1956 but may have had an even deeper impact on the Eastern Bloc and on the Soviet Union's relationship to its satellite states in Central and Eastern Europe.
Poland–Russia relations have a long and often turbulent history, dating to the late Middle Ages. Over centuries, there have been several Polish–Russian Wars, with Poland once occupying Moscow and later Russia controlling much of Poland in the 19th as well as in the 20th century, leading to strained relations and multiple Polish attempts at re-acquiring independence. Polish–Russian relations entered a new phase following the fall of communism, with relations warming under Soviet Premier Mikhail Gorbachev and later Russian President Boris Yeltsin. Relations began worsening considerably as a result of the 2008 Russian invasion of Georgia, and later the 2014 annexation of Crimea and especially the 2022 Russian invasion of Ukraine. Relations between the Polish and Russian governments have become extremely unfriendly, and according to a 2022 poll, only 2% of Poles view Russia positively, the lowest number in the world among countries polled.
The bilateral relations between Poland and Germany have been marked by an extensive and complicated history.
History of Pomerania (1945–present) covers the history of Pomerania during World War II aftermath, the Communist and since 1989 Democratic era.
The Oder–Neisse line is an unofficial term for the modern border between Germany and Poland. The line generally follows the Oder and Lusatian Neisse rivers, meeting the Baltic Sea in the north. A small portion of Polish territory does fall west of the line, including the cities of Szczecin and Świnoujście.
The Germany–Poland border is the state border between Poland and Germany, mostly along the Oder–Neisse line, with a total length of 467 km (290 mi). It stretches from the Baltic Sea in the north to the Czech Republic in the south.
Bitter Legacy: Polish-American Relations in the Wake of World War II is a 1982 book by Richard C. Lukas, published by the University Press of Kentucky. It deals with the postwar Polish history and Polish-American relations, as well as the American aid that was extended to Poland after World War II.
The Cold War from 1947 to 1948 is the period within the Cold War from the Truman Doctrine in 1947 to the incapacitation of the Allied Control Council in 1948. The Cold War emerged in Europe a few years after the successful US–USSR–UK coalition won World War II in Europe, and extended to 1989–1991. It took place worldwide, but it had a partially different timing outside Europe. Some conflicts between the West and the USSR appeared earlier. In 1945–1946 the US and UK strongly protested Soviet political takeover efforts in Eastern Europe and Iran, while the hunt for Soviet spies made the tensions more visible. However, historians emphasize the decisive break between the US–UK and the USSR came in 1947–1948 over such issues as the Truman Doctrine, the Marshall Plan and the breakdown of cooperation in governing occupied Germany by the Allied Control Council. In 1947, Bernard Baruch, the multimillionaire financier and adviser to presidents from Woodrow Wilson to Harry S. Truman, coined the term "Cold War" to describe the increasingly chilly relations between three World War II Allies: the United States and British Empire together with the Soviet Union.
