The Polish–Lithuanian alliance thus lasted a total of 410 years, and constituted at times the largest state in Europe.
Czartoryski's diplomatic efforts anticipated Piłsudski's Prometheist project in linking efforts for Polish independence with similar movements of other subjugated nations in Europe, as far east as the Caucasus Mountains, most notably in Georgia.
Czartoryski aspired above all to reconstitute—with French, British, and Ottoman support—a sort of "pan-Slavic" Polish–Lithuanian Commonwealth federated with the Czechs, Slovaks, Hungarians, Romanians, and all the South Slavs of the future Yugoslavia. Poland, in his concept, could have mediated the conflicts between Hungary and the Slavs, and between Hungary and Romania. The plan seemed achievable during the period of national revolutions in 1848–49 but foundered on lack of western support, on Hungarian intransigence toward the Czechs, Slovaks, and Romanians, and on the rise of German nationalism.
Józef Piłsudski's strategic goal was to resurrect an updated, democratic form of the Polish–Lithuanian Commonwealth, while working for the disintegration of the Russian Empire, and later the Soviet Union, into its ethnic constituents. (The latter was his Prometheist project.) Piłsudski saw an Intermarium federation as a counterweight to Russian and German imperialism.
According to Dziewanowski, the plan was never expressed in systematic fashion but instead relied on Piłsudski's pragmatic instincts. According to British scholar George Sanford, about the time of the Polish–Soviet War of 1920 Piłsudski recognised that the plan was not feasible.
Piłsudski's plan faced opposition from virtually all quarters. The Soviets, whose sphere of influence was directly threatened, worked to thwart the Intermarium agenda. The Allied Powers assumed that Bolshevism was only a temporary threat and did not want to see their important (from the balance-of-power viewpoint) traditional ally, Russia, weakened. They resented Piłsudski's refusal to aid their White allies, viewed Piłsudski with suspicion, saw his plans as unrealistic, and urged Poland to confine itself to areas of clear-cut Polish ethnicity. The Lithuanians, who had re-established their independence in 1918, were unwilling to join; the Ukrainians, similarly seeking independence, likewise feared that Poland might again subjugate them; and the Belarusians, though nearly not as interested in independence as Ukraine, were still fearful of Polish domination. The chances for Piłsudski's scheme were not enhanced by a series of post-World War I wars and border conflicts between Poland and its neighbors in disputed territories—the Polish–Soviet War, the Polish–Lithuanian War, the Polish–Ukrainian War, and border conflicts between Poland and Czechoslovakia.
While some scholars accept at face value the democratic principles claimed by Piłsudski for his federative plan, others view such claims with skepticism, pointing out a coup d'état in 1926 when Piłsudski assumed nearly dictatorial powers. In particular, his project is viewed unfavourably by most Ukrainian historians, with Oleksandr Derhachov arguing that the federation would have created a greater Poland in which the interests of non-Poles, especially Ukrainians, would have received short shrift.
Some historians hold that Piłsudski, who argued that "There can be no independent Poland without an independent Ukraine", may have been more interested in splitting Ukraine from Russia than in assuring Ukrainians' welfare. He did not hesitate to use military force to expand Poland's borders to Galicia and Volhynia, crushing a Ukrainian attempt at self-determination in disputed territories east of the Bug River which contained a substantial Polish presence (a Polish majority mainly in cities such as Lwów, surrounded by a rural Ukrainian majority).
Speaking of Poland's future frontiers, Piłsudski said: "All that we can gain in the west depends on the Entente—on the extent to which it may wish to squeeze Germany", while in the east "there are doors that open and close, and it depends on who forces them open and how far". In the eastern chaos, the Polish forces set out to expand as far as feasible. On the other hand, Poland had no interest in joining the western intervention in the Russian Civil War or in conquering Russia itself.
In the aftermath of the Polish–Soviet War (1919–1921), and the establishment of the Ukrainian SSR, Piłsudski's concept of a federation of Central and Eastern European countries, based on a Polish-Ukrainian axis, lost any chance of realisation.
Piłsudski died in 1935. A later, much reduced version of his concept was attempted by interwar Polish Foreign Minister Józef Beck, a protégé of Piłsudski. His proposal, during the late 1930s, of a "Third Europe"—an alliance of Poland, Romania, and Hungary—gained little ground before World War II supervened. Beck's Third Europe concept failed to achieve any traction because Germany was the world's second largest economy and all of eastern Europe was dominated economically by the Reich. For economic reasons, the tendency in eastern Europe was to follow the lead of Berlin rather than Warsaw.
The concept of a "Central [and Eastern] European Union"—a triangular geopolitical entity anchored in the Baltic, Black, and Adriatic or Aegean Seas—was revived during World War II in Władysław Sikorski's Polish Government-in-Exile.
A first step toward its implementation—1942 discussions among the Greek, Yugoslav, Polish, and Czechoslovak governments-in- exile regarding prospective Greek–Yugoslav and Polish–Czechoslovak federations—ultimately foundered on Soviet opposition, which led to Czech hesitation and Allied indifference or hostility.
Aviel Roshwald, "Ethnic Nationalism and the Fall of Empires: Central Europe, the Middle East and Russia, 1914–1923", Routledge (UK), 2001, ISBN 0-415-17893-2, p. 37 /wiki/Aviel_Roshwald
Richard K Debo, Survival and Consolidation: The Foreign Policy of Soviet Russia, 1918–1921, McGill-Queen's Press, 1992, ISBN 0-7735-0828-7, p. 59. /wiki/ISBN_(identifier)
James H. Billington, Fire in the Minds of Men, Transaction Publishers, ISBN 0-7658-0471-9, p. 432 /wiki/ISBN_(identifier)
Andrzej Paczkowski, The Spring Will Be Ours: Poland and the Poles from Occupation to Freedom, Penn State Press, 2003, ISBN 0-271-02308-2, p. 10 /wiki/Andrzej_Paczkowski
David Parker, The Tragedy of Great Power Politics, W. W. Norton & Company, 2001, ISBN 0-393-02025-8, p. 194 /wiki/ISBN_(identifier)
Mark Hewitson, Matthew D'Auria Europe in Crisis: Intellectuals and the European Idea, 1917–1957, 2012, p. 191 "... of the other national movements that had found themselves included in Piłsudski's project, especially the Lithuanians. ... The somewhat nostalgic image of 'Intermarium', the land of cultural and historical diversity destroyed by the wave of ..."
Miloslav Rechcígl, Studies in Czechoslovak history, Czechoslovak Society of Arts and Sciences in America, 1976, Volume 1, p. 282. "This new policy, which was labeled the Intermarium, or Third Europe Project, called for the establishment of ..."
Fritz Taubert, "The myth of Munich 1938", 2002 p. 351 "... range détente with Germany and in the chance of creating a Polish-led 'Third Europe' or 'Intermarium' as illusory."
Tomasz Piesakowski, Akcja niepodległościowa na terenie międzynarodowym, 1945–1990, 1999, p. 149: "... przyjmując łacińskie określenie 'Intermarium' (Międzymorze). Podkreślano, że 'Intermarium' to nie tylko pojęcie obszaru geopolitycznego zamieszkanego przez 16 narodów, ale idea wspólnoty wszystkich wolnych narodów tego obszaru."
"Józef Pilsudski, Polish revolutionary and statesman, the first chief of state (1918–22) of the newly independent Poland established in November 1918." ("Józef Pilsudski", Encyclopædia Britannica)
"Released in November 1918, [Piłsudski] returned to Warsaw, assumed command of the Polish armies, and proclaimed an independent Polish republic, which he headed." ("Piłsudski, Joseph", Columbia Encyclopedia)
http://www.britannica.com/eb/article-9060041
Timothy Snyder, Covert Polish missions across the Soviet Ukrainian border, 1928–1933 (p. 55, p. 56, p. 57, p. 58, p. 59, in Cofini, Silvia Salvatici, Rubbettino, 2005).
Timothy Snyder, Sketches from a Secret War: A Polish Artist's Mission to Liberate Soviet Ukraine, Yale University Press, 2005, ISBN 0-300-10670-X, (p. 41, p. 42, p. 43)
/wiki/Timothy_Snyder
"Pilsudski hoped to build not merely a Polish nation state but a greater federation of peoples under the aegis of Poland which would replace Russia as the great power of Eastern Europe. Lithuania, Belorussia and Ukraine were all to be included. His plan called for a truncated and vastly reduced Russia, a plan which excluded negotiations prior to military victory." Richard K Debo, Survival and Consolidation: The Foreign Policy of Soviet Russia, 1918–1992, p. 59, McGill-Queen's Press, 1992, ISBN 0-7735-0828-7. https://books.google.com/books?id=gQfUB0CXBO4C&q=excluded+negotiations&pg=PA59
"Pilsudski's program for a federation of independent states centered on Poland; in opposing the imperial power of both Russia and Germany it was in many ways a throwback to the romantic Mazzinian nationalism of Young Poland in the early nineteenth century." James H. Billington, Fire in the Minds of Men, p. 432, Transaction Publishers, ISBN 0-7658-0471-9 /wiki/Young_Poland
Oleksa Pidlutsky, "Figures of the 20th century. Józef Piłsudski: the Chief who Created a State for Himself", Zerkalo Nedeli [Mirror Weekly], 3–9 February 2001, available online in Russian Archived 2005-11-26 at the Wayback Machine and in Ukrainian Archived 2005-11-07 at the Wayback Machine. /wiki/Zerkalo_Nedeli
"The essence of [Józef Piłsudski's 'federalist' program] was that after the overthrow of tsardom and the disintegration of the Russian empire, a large, strong and mighty Poland was to be created in Eastern Europe. It would be the reincarnation of the Rzeczpospolita on 'federative' principles. It was to include the Polish, Lithuanian, Belarusian and Ukrainian lands. The leading role, of course, was to be given to the Polish ethnic, political, economic and cultural element. ... As such two influential and popular political doctrines with regard to Ukraine—the 'incorporationist' and the 'federalist'—even before the creation of Polish statehood, were based on ignoring the right of the Ukrainian people to self-determination and put forward claims to rule over the Ukrainian territories ..." "Ukraine in Polish concepts of foreign policy", in Oleksandr Derhachov (ed.), Ukrainian Statehood in the Twentieth Century: Historical and Political Analysis, Kyiv, 1996, ISBN 966-543-040-8. /wiki/ISBN_(identifier)
Roman Szporluk, Imperiia ta natsii, Kyiv, Dukh i Litera, 2001, ISBN 966-7888-05-3, section II (in Ukrainian) /wiki/ISBN_(identifier)
"Intermarium Alliance – Will the idea become reality?". www.unian.info. Retrieved 2015-11-01. https://www.unian.info/politics/1110820-intermarium-alliance-will-the-idea-become-reality.html
"Between Imperial Temptation And Anti-Imperial Function In Eastern European Politics: Poland From The Eighteenth To Twenty-First Century". Andrzej Nowak. Accessed September 14, 2007. http://src-h.slav.hokudai.ac.jp/coe21/publish/no7_ses/chapter12.pdf
Eidintas, Alfonsas; Zalys, Vytautas (1999). Lithuania in European Politics: The Years of the First Republic, 1918-1940. Palgrave Macmillan. ISBN 978-0-312-22458-5. 978-0-312-22458-5
"Union of Krewo (Act of Kreva)". Polish History. 2022-08-13. Retrieved 2023-02-24. https://polishhistory.pl/union-of-krewo-act-of-kreva/
Marian Kamil Dziewanowski, "Polski pionier zjednoczonej Europy" ("A Polish Pioneer of a United Europe"), Gwiazda Polarna (Pole Star), Sept. 17, 2005, pp. 10–11. /wiki/Marian_Kamil_Dziewanowski
"The Prince [Czartoryski] thus shows himself a visionary (emphasis added], the outstanding Polish statesman of the period between the November and January Uprisings." Dziewanowski, "Polski pionier zjednoczonej Europy," p. 11. /wiki/Marian_Kamil_Dziewanowski
Dziewanowski, "Polski pionier zjednoczonej Europy," p. 10. /wiki/Marian_Kamil_Dziewanowski
Dziewanowski, Polski pionier zjednoczonej Europy, p. 10. /wiki/Marian_Kamil_Dziewanowski
Dziewanowski, "Polski pionier zjednoczonej Europy," pp. 10–11. /wiki/Marian_Kamil_Dziewanowski
Dziewanowski, "Polski pionier zjednoczonej Europy," p. 11. /wiki/M.K._Dziewanowski
"Adam Czartoryski's great plan, which had seemed close to realization (emphasis added) during the Spring of Nations in 1848–49, failed..." Dziewanowski, "Polski pionier zjednoczonej Europy," p. 11. /wiki/Spring_of_Nations
Dziewanowski, "Polski pionier zjednoczonej Europy", p. 11. /wiki/M.K._Dziewanowski
Dziewanowski, "Polski pionier zjednoczonej Europy," p. 11. /wiki/M.K._Dziewanowski
Jonathan Levy (6 June 2007). The Intermarium: Wilson, Madison, & East Central European Federalism. Universal-Publishers. pp. 166–167. ISBN 978-1-58112-369-2. Retrieved 11 April 2011. 978-1-58112-369-2
Jonathan Levy (6 June 2007). The Intermarium: Wilson, Madison, & East Central European Federalism. Universal-Publishers. pp. 166–167. ISBN 978-1-58112-369-2. Retrieved 11 April 2011. 978-1-58112-369-2
Janusz Cisek (26 September 2002). Kościuszko, we are here!: American pilots of the Kościuszko Squadron in defense of Poland, 1919-1921. McFarland. p. 47. ISBN 978-0-7864-1240-2. Retrieved 11 April 2011. 978-0-7864-1240-2
Joshua B. Spero (2004). Bridging the European divide: middle power politics and regional security dilemmas. Rowman & Littlefield. p. 36. ISBN 978-0-7425-3553-4. Retrieved 11 April 2011. 978-0-7425-3553-4
Kenneth F. Lewalski (March 1972). "Review of Joseph Pilsudski: A European Federalist, 1918–1922, by M. K. Dziewanowski". Journal of Modern History. Accessed September 16, 2007. https://www.jstor.org/stable/1878849
George Sanford, Democratic Government in Poland: Constitutional Politics since 1989. Palgrave Macmillan 2002. ISBN 0-333-77475-2. pp. 5–6. /wiki/George_Sanford_(scholar)
"Between Imperial Temptation And Anti-Imperial Function In Eastern European Politics: Poland From The Eighteenth To Twenty-First Century". Andrzej Nowak. Accessed September 14, 2007. http://src-h.slav.hokudai.ac.jp/coe21/publish/no7_ses/chapter12.pdf
Adam Bruno Ulam, Stalin: The Man and His Era, Beacon Press, 1989, ISBN 0-8070-7005-X, p. 185 /wiki/Adam_Bruno_Ulam
"Polish-Soviet War: Battle of Warsaw". Archived 2007-10-07 at the Wayback Machine. Accessed September 30, 2007. http://www.historynet.com/wars_conflicts/20_21_century/3038436.html?featured=y&c=y
Norman Davies, White Eagle, Red Star, Polish edition, Wydawnictwo Znak, 1997, ISBN 83-7006-761-1, p.228 /wiki/Norman_Davies
"Polish-Soviet War: Battle of Warsaw". Archived 2007-10-07 at the Wayback Machine. Accessed September 30, 2007. http://www.historynet.com/wars_conflicts/20_21_century/3038436.html?featured=y&c=y
Piotr Łossowski, Konflikt polsko-litewski 1918–1920, Książka i Wiedza, 1995, ISBN 83-05-12769-9, p.13–16 and p. 36 /wiki/Piotr_%C5%81ossowski
Eidintas, Alfonsas; Zalys, Vytautas (1999). Lithuania in European Politics: The Years of the First Republic, 1918-1940. Palgrave Macmillan. ISBN 978-0-312-22458-5. 978-0-312-22458-5
"Polish-Soviet War: Battle of Warsaw". Archived 2007-10-07 at the Wayback Machine. Accessed September 30, 2007. http://www.historynet.com/wars_conflicts/20_21_century/3038436.html?featured=y&c=y
"Polish-Soviet War: Battle of Warsaw". Archived 2007-10-07 at the Wayback Machine. Accessed September 30, 2007. http://www.historynet.com/wars_conflicts/20_21_century/3038436.html?featured=y&c=y
(in Polish) "Wojna polsko-bolszewicka". Archived 2013-11-11 at the Wayback Machine. Internetowa encyklopedia PWN. Accessed 27 October 2006. http://encyklopedia.pwn.pl/haslo.php?id=3997498
"Pilsudski dreamed of drawing all the nations situated between Germany and Russia into an enormous federation in which Poland, by virtue of its size, would be the leader, while Dmowski wanted to see a unitary Polish state, in which other Slav peoples would become assimilated." Andrzej Paczkowski, The Spring Will Be Ours: Poland and the Poles from Occupation to Freedom, p. 10, Penn State Press, 2003, ISBN 0-271-02308-2 https://books.google.com/books?id=WoKQWem2yl4C&q=0271023082
Manfred F. Boemeke, Gerald D. Feldman, Elisabeth Glaser, The Treaty of Versailles: A Reassessment After 75 Years, Cambridge University Press, 1998, ISBN 0-521-62132-1, p.314 /wiki/ISBN_(identifier)
Roman Dmowski has been quoted as saying: "Wherever we can multiply our forces and our civilizational efforts, absorbing other elements, no law can prohibit us from doing so, as such actions are our duty." J. Tomaszewski, Kresy Wschodnie w polskiej mysli politycznej XIX i XX w./Między Polską etniczną a historyczną. Polska myśl polityczna XIX i XX wieku, vol. 6, Warsaw, 1988, p. 101. Cited in Oleksandr Derhachov, ibid. /wiki/Roman_Dmowski
"Pilsudski dreamed of drawing all the nations situated between Germany and Russia into an enormous federation in which Poland, by virtue of its size, would be the leader, while Dmowski wanted to see a unitary Polish state, in which other Slav peoples would become assimilated." Andrzej Paczkowski, The Spring Will Be Ours: Poland and the Poles from Occupation to Freedom, p. 10, Penn State Press, 2003, ISBN 0-271-02308-2 https://books.google.com/books?id=WoKQWem2yl4C&q=0271023082
George Sanford, Democratic Government in Poland: Constitutional Politics since 1989. Palgrave Macmillan 2002. ISBN 0-333-77475-2. pp. 5–6. /wiki/George_Sanford_(scholar)
Aviel Roshwald, Ethnic Nationalism and the Fall of Empires: Central Europe, the Middle East and Russia, 1914–1923, 2001, Routledge (UK), ISBN 0-415-24229-0, p. 49[permanent dead link] /wiki/Aviel_Roshwald
"Pilsudski's program for a federation of independent states centered on Poland; in opposing the imperial power of both Russia and Germany it was in many ways a throwback to the romantic Mazzinian nationalism of Young Poland in the early nineteenth century." James H. Billington, Fire in the Minds of Men, p. 432, Transaction Publishers, ISBN 0-7658-0471-9 /wiki/Young_Poland
Yohanan Cohen, Small Nations in Times of Crisis and Confrontation, SUNY Press, 1989, ISBN 0-7914-0018-2 p. 65 /wiki/Yohanan_Cohen
"The essence of [Józef Piłsudski's 'federalist' program] was that after the overthrow of tsardom and the disintegration of the Russian empire, a large, strong and mighty Poland was to be created in Eastern Europe. It would be the reincarnation of the Rzeczpospolita on 'federative' principles. It was to include the Polish, Lithuanian, Belarusian and Ukrainian lands. The leading role, of course, was to be given to the Polish ethnic, political, economic and cultural element. ... As such two influential and popular political doctrines with regard to Ukraine—the 'incorporationist' and the 'federalist'—even before the creation of Polish statehood, were based on ignoring the right of the Ukrainian people to self-determination and put forward claims to rule over the Ukrainian territories ..." "Ukraine in Polish concepts of foreign policy", in Oleksandr Derhachov (ed.), Ukrainian Statehood in the Twentieth Century: Historical and Political Analysis, Kyiv, 1996, ISBN 966-543-040-8. /wiki/ISBN_(identifier)
"The newly founded Polish state cared much more about the expansion of its borders to the east and southeast ('between the seas') than about helping the dying [Ukrainian] state of which Petlura was de facto dictator." "A Belated Idealist", Zerkalo Nedeli [Mirror Weekly], 22–28 May 2004. Available online in Russian Archived 2006-01-16 at the Wayback Machine and in Ukrainian Archived 2007-03-10 at the Wayback Machine. Piłsudski is quoted to have said: "After Polish independence we will see about Poland's size." (ibid) /wiki/Zerkalo_Nedeli
A month before his death, Pilsudski told an aide: "My life is lost. I failed to create a Ukraine free of the Russians." (in Russian and Ukrainian) Oleksa Pidlutskyi, "Józef Piłsudski: The Chief who Created Himself a State", in Postati XX stolittia [Figures of the 20th century], Kyiv, 2004, ISBN 966-8290-01-1, LCCN 2004-440333. reprinted in Zerkalo Nedeli [Mirror Weekly], Kyiv, 3–9 February 2001, in Russian Archived 2005-11-26 at the Wayback Machine and in Ukrainian Archived 2005-11-07 at the Wayback Machine. /wiki/Kyiv
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Anna M. Cienciala, 2004. "The Rebirth of Poland" Archived 2020-11-08 at the Wayback Machine (lecture notes). University of Kansas. Asccessed 2 June 2006. /wiki/Anna_M._Cienciala
Joseph Pilsudski. Interview by Dymitr Merejkowsky, 1921. Translated from the Russian by Harriet E Kennedy B. A. London & Edinburgh, Sampson Low, Marston & Co Ltd 1921. Piłsudski said: "Poland can have nothing to do with the restoration of old Russia. Anything rather than that–even Bolshevism". /wiki/Dymitr_Merejkowsky
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