The history of the Curzon Line, with minor variations, goes back to the period following World War I. It was drawn for the first time by the Supreme War Council as the demarcation line between the newly emerging states, the Second Polish Republic and the Soviet Union. The proposal was put forward by British Foreign Secretary George Curzon, to serve as a diplomatic basis for the future border agreement, and in that form, it never materialized because the war went on.
|Historical demarcation line of World War II|
Lighter blue line: Curzon Line "B" as proposed in 1919.
Darker blue line: "Curzon" Line "A" as drawn by Lewis Namier in 1919.
Pink areas: Former pre-World War II provinces of Germany transferred to Poland after the war.
Grey area: Pre-World War II Polish territory east of the Curzon Line annexed by the Soviet Union after the war.
The line became a major geopolitical factor during World War II, when Joseph Stalin invaded eastern Poland and split its territory along the Curzon Line with Adolf Hitler. The Western powers entered into negotiations with the Soviet Union following Operation Barbarossa. Throughout the war until the Tehran Conference, the Allies did not agree that Poland's future eastern border should be kept at the same Curzon Line drawn in 1939; but Churchill's position changed after the Soviet victory at the Battle of Kursk.
Following a private agreement at the Tehran Conference, confirmed at the 1945 Yalta Conference, the Allied leaders Franklin Roosevelt, Winston Churchill, and Stalin issued a statement affirming the use of the Curzon Line, with some five-to-eight kilometre variations, as the eastern border between Poland and the Soviet Union. When Churchill proposed to add parts of East Galicia, including the city of Lviv, to Poland's territory (following Line B), Stalin argued that the Soviet Union could not demand less territory for itself than the British Government had reconfirmed previously several times. The Allied arrangement involved compensation for this loss via the incorporation of formerly German areas (the so-called Recovered Territories) into Poland. As a result, the current border between the countries of Belarus, Ukraine and Poland is an approximation of the Curzon Line.
At the end of World War I, the Second Polish Republic reclaimed its sovereignty following the disintegration of the occupying forces of three neighbouring empires. Imperial Russia was amid the Russian Civil War after the October Revolution, Austria-Hungary split and went into decline, and the German Reich bowed to pressure from the victorious forces of the Allies of World War I known as the Entente Powers. The Allied victors agreed that an independent Polish state should be recreated from territories previously part of the Russian, the Austro-Hungarian and the German empires, after 123 years of upheavals and military partitions by these.
The Supreme War Council tasked the Commission on Polish Affairs with recommending Poland's eastern border. The Allies forwarded it as an armistice line several times during the war, most notably in a note from the British government to the Soviets signed by Foreign Secretary Lord Curzon of Kedleston. Both parties disregarded the line when the military situation lay in their favour, and it did not play a role in establishing the Polish-Soviet border in 1921. Instead, the final Peace of Riga (or Treaty of Riga) provided Poland with almost 135,000 square kilometres (52,000 sq mi) of land that was, on average, about 250 kilometres (160 mi) east of the Curzon line.
The northern half of the Curzon line lay approximately along the border which was established between the Prussian Kingdom and the Russian Empire in 1797, after the Third Partition of Poland, which was the last border recognised by the United Kingdom. Along most of its length, the line followed an ethnic boundary - areas west of the line contained an overall Polish majority while areas to its east were inhabited by Ukrainians, Belorussians, Poles, Jews, and Lithuanians. Its 1920 northern extension into Lithuania divided the area disputed between Poland and Lithuania. There were two versions of the southern portion of the line: "A" and "B". Version "B" allocated Lwów (Lviv) to Poland.
End of World War IEdit
The US President Woodrow Wilson's Fourteen Points included the statement "An independent Polish state should be erected which should include the territories inhabited by indisputably Polish populations, which should be assured a free and secure access to the sea..." Article 87 of the Versailles Treaty stipulated that "The boundaries of Poland not laid down in the present Treaty will be subsequently determined by the Principal Allied and Associated Powers." In accordance with these declarations, the Supreme War Council tasked the Commission on Polish Affairs with proposing Poland's eastern boundaries in lands that were inhabited by a mixed population of Poles, Lithuanians, Ukrainians and Belorussians. The Commission issued its recommendation on 22 April; its proposed Russo-Polish borders were close to those of the 19th-century Congress Poland.
The Supreme Council continued to debate the issue for several months. On 8 December, the Council published a map and description of the line along with an announcement that it recognized "Poland's right to organize a regular administration of the territories of the former Russian Empire situated to the West of the line described below." At the same time, the announcement stated the Council was not "...prejudging the provisions which must in the future define the eastern frontiers of Poland" and that "the rights that Poland may be able to establish over the territories situated to the East of the said line are expressly reserved." The announcement had no immediate impact, although the Allies recommended its consideration in an August 1919 proposal to Poland, which was ignored.
Polish-Soviet War of 1919-1921Edit
Polish forces pushed eastward, taking Kiev in May 1920. Following a strong Soviet counteroffensive, Prime Minister Władysław Grabski sought Allied assistance in July. Under pressure, he agreed to a Polish withdrawal to the 1919 version of the line and, in Galicia, an armistice near the current line of battle. On 11 July 1920 Curzon signed a telegram sent to the Bolshevik government proposing that a ceasefire be established along the line, and his name was subsequently associated with it.
Curzon's July 1920 proposal differed from the 19 December announcement in two significant ways. The December note did not address the issue of Galicia, since it had been a part of the Austrian Empire rather than the Russian, nor did it address the Polish-Lithuanian dispute over the Vilnius Region, since those borders were demarcated at the time by the Foch Line. The July 1920 note specifically addressed the Polish-Lithuanian dispute by mentioning a line running from Grodno to Vilnius (Wilno) and thence north to Daugavpils, Latvia (Dynaburg). It also mentioned Galicia, where earlier discussions had resulted in the alternatives of Line A and Line B. The note endorsed Line A, which included Lwów and its nearby oil fields within Russia. This portion of the line did not correspond to the current line of battle in Galicia, as per Grabski's agreement, and its inclusion in the July note has lent itself to disputation.
On 17 July, the Soviets responded to the note with a refusal. Georgy Chicherin, representing the Soviets, commented on the delayed interest of the British for a peace treaty between Russia and Poland. He agreed to start negotiations as long as the Polish side asked for it. The Soviet side at that time offered more favourable border solutions to Poland than the ones offered by the Curzon line. In August the Soviets were defeated by the Poles just outside Warsaw and forced to retreat. During the ensuing Polish offensive, the Polish government repudiated Grabski's agreement with regard to the line on the grounds that the Allies had not delivered support or protection.
Peace of RigaEdit
At the March 1921 Treaty of Riga the Soviets conceded a frontier well to the east of the Curzon Line, where Poland had conquered a great part of the Vilna Governorate (1920/1922), including the town of Wilno (Vilnius), and East Galicia (1919), including the city of Lwów, as well as most of the region of Volhynia (1921). The treaty provided Poland with almost 135,000 square kilometres (52,000 sq mi) of land that was, on average, about 250 kilometres (160 mi) east of the Curzon line. The Polish-Soviet border was recognised by the League of Nations in 1923 and confirmed by various Polish-Soviet agreements. Within the annexed regions, Poland founded several administrative districts, such as the Volhynian Voivodeship, the Polesie Voivodeship, and the Wilno Voivodeship.
As a concern of possible expansion of Polish territory, Polish politicians traditionally could be subdivided into two opposite groups advocating contrary approaches: restoration of Poland based on its former western territories one side and, alternatively, restoration of Poland based on its previous holdings in the east on the other. During the first quarter of the 20th century, a representative of the first political group was Roman Dmowski, an adherent of the pan-slavistic movement and author of several political books and publications of some importance, who suggested to define Poland's eastern border in accordance with the ethnographic principle and to concentrate on resisting a more dangerous enemy of the Polish nation than Russia, which in his view was Germany. A representative of the second group was Józef Piłsudski, a socialist who was born in the Vilna Governorate annexed during the 1795 Third Partition of Poland by the Russian Empire, whose political vision was essentially a far-reaching restoration of the borders of the Polish–Lithuanian Commonwealth. Because the Russian Empire had collapsed into a state of civil war following the Russian Revolution of 1917, and the Soviet Army had been defeated and been weakened considerably at the end of World War I by Germany's army, resulting in the Treaty of Brest-Litovsk, Piłsudski took the chance and used military force in an attempt to realise his political vision by concentrating on the east and involving himself in the Polish–Soviet War.
Nazi-Soviet invasion of Poland in September 1939Edit
The terms of the Molotov–Ribbentrop Pact of August 1939 provided for the partition of Poland along the line of the San, Vistula and Narew rivers which did not go along Curzon Line but reached far beyond it and awarded the Soviet Union with territories of Lublin and near Warsaw. In September, after the military defeat of Poland, the Soviet Union annexed all territories east of the Curzon Line plus Białystok and Eastern Galicia. The territories east of this line were incorporated into the Byelorussian SSR and Ukrainian SSR after staged referendums and hundreds of thousands of Poles and a lesser number of Jews were deported eastwards into the Soviet Union. In July 1941 these territories were seized by Germany in the course of the invasion of the Soviet Union. During the German occupation most of the Jewish population was deported or killed by Germans.
In 1944, the Soviet armed forces recaptured eastern Poland from the Germans. The Soviets unilaterally declared a new frontier between the Soviet Union and Poland (approximately the same as the Curzon Line). The Polish government-in-exile in London bitterly opposed this and at the Tehran and Yalta conferences between Stalin and the western Allies, the allied leaders Roosevelt and Churchill asked Stalin to reconsider, particularly over Lwów, but he refused. During the negotiations at Yalta, Stalin posed the question "Do you want me to tell the Russian people that I am less Russian than Lord Curzon?" The altered Curzon Line thus became the permanent eastern border of Poland and was recognised by the western Allies in July 1945. The border was later adjusted several times, the biggest revision being in 1951.
When the Soviet Union ceased to exist in 1991, the Curzon line became Poland's eastern border with Lithuania, Belarus and Ukraine.
Ethnicity east of the Curzon LineEdit
The ethnic composition of these areas proved difficult to measure, both during the interwar period and after World War II. A 1944 article in The Times estimated that in 1931 there lived between 2.2 and 2.5 million Poles east of the Curzon Line. According to historian Yohanan Cohen's estimate, in 1939 the population in the territories east of the Curzon Line gained via the Treaty of Riga totalled 12 million, consisting of over 5 million Ukrainians, between 3.5 and 4 million Poles, 1.5 million Belarusians, and 1.3 million Jews. During World War II, politicians gave varying estimates of the Polish population east of the Curzon line that would be affected by population transfers. Winston Churchill mentioned "3 to 4 million Poles east of the Curzon Line". Stanisław Mikołajczyk, then Prime Minister of the Polish government-in-exile, counted this population as 5 million.
Ukrainians and Belarusians composed the majority of the population east of the Bug and San rivers (roughly equivalent to the Curzon Line of July 1920). The area also had a significant number of Jewish inhabitants. Poles constituted majorities in the cities of Lwów and Wilno (Jews were the second most numerous), and in Vilnius region or Wilno Voivodship.
After the Soviet deportation of Poles and Jews in 1939–1941 (see Polish minority in Soviet Union), The Holocaust and the ethnic cleansing of the Polish population of Volhynia and East Galicia by Ukrainian Nationalists, the Polish population in the territories had decreased considerably. The cities of Wilno, Lwów, Grodno and some smaller towns still had significant Polish populations. After 1945, the Polish population of the area east of the new Soviet-Polish border was in general confronted with the alternative either to accept a different nationality or to emigrate. According to more recent research, about 3 million Poles lived east of the Curzon line, of which about 2.1 million to 2.2 million persons died, fled, emigrated or were expelled to the newly annexed German territories. There exists a big Polish minority in Lithuania and a big Polish minority in Belarus (19.7% in Grodno and Sapotskin region with about 9,000 inhabitants remains almost entirely Polish to this day). The area today is almost entirely Ukrainian in the south. Despite the emigrations and expulsions, there were about 295,000 Poles in Belarus in 2009 (3.1% of the Belarus population). The cities of Vilnius, Grodno and some smaller towns still have significant Polish populations. Vilnius District Municipality and Sapotskin region have a Polish majority.
Ukrainian nationalists continued their partisan war and were imprisoned by the Soviets and sent to the Gulag. There they revolted, actively participating in several uprisings (Kengir uprising, Norilsk uprising, Vorkuta uprising).
Ethnicity west of the Curzon LineEdit
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West of the Curzon line the Polish population was generally predominant in urban centres, especially the cities. Poles formed the majority in Białystok region and voivodship, with Jews comprising 12.3% of the population.
A significant Belarusian rural population was incorporated into modern Poland around Białystok. A similar situation existed with the Ukrainian population around Chełm. The extreme south had a large rural Ukrainian population also. Much of the Ukrainian population was forcibly resettled after World War II to Soviet Ukraine or scattered in the new Polish Recovered Territories of Silesia, Pomerania, Lubusz Land, Warmia and Masuria in a military operation called Operation Vistula.
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