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Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
and
Lithuania Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...
established
diplomatic relations Diplomacy is the communication by representatives of state, intergovernmental, or non-governmental institutions intended to influence events in the international system.Ronald Peter Barston, ''Modern Diplomacy'', Pearson Education, 2006, p. ...
from the 13th century, after the
Grand Duchy of Lithuania The Grand Duchy of Lithuania was a sovereign state in northeastern Europe that existed from the 13th century, succeeding the Kingdom of Lithuania, to the late 18th century, when the territory was suppressed during the 1795 Partitions of Poland, ...
under king
Mindaugas Mindaugas (, , , , ; c. 1203 – 12 September 1263) was the first known grand duke of Lithuania, Grand Duke of Lithuania and the only crowned King of Lithuania. Little is known of his origins, early life, or rise to power; he is mentioned in a ...
acquired some of the territory of
Rus' Rus or RUS may refer to: People * East Slavic historical peoples (). See Names of Rus', Russia and Ruthenia ** Rus' people, the people of Rus' ** Rus, a legendary eponymous ancestor, see Lech, Czech and Rus * Rus (surname), a surname found in Ro ...
and thus established a border with the then-fragmented
Kingdom of Poland The Kingdom of Poland (; Latin: ''Regnum Poloniae'') was a monarchy in Central Europe during the Middle Ages, medieval period from 1025 until 1385. Background The West Slavs, West Slavic tribe of Polans (western), Polans who lived in what i ...
. Polish–Lithuanian relations subsequently improved, ultimately leading to a
personal union A personal union is a combination of two or more monarchical states that have the same monarch while their boundaries, laws, and interests remain distinct. A real union, by contrast, involves the constituent states being to some extent in ...
between the two states. From the mid-16th to the late-18th century Poland and Lithuania merged to form the
Polish–Lithuanian Commonwealth The Polish–Lithuanian Commonwealth, also referred to as Poland–Lithuania or the First Polish Republic (), was a federation, federative real union between the Crown of the Kingdom of Poland, Kingdom of Poland and the Grand Duchy of Lithuania ...
, a state that was dissolved following their partition by Austria, Prussia and Russia. After the two states regained independence following the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, Polish–Lithuanian relations steadily worsened due to rising nationalist sentiments. Competing claims to the
Vilnius region Vilnius Region is the territory in present-day Lithuania and Belarus that was originally inhabited by ethnic Baltic tribes and was a part of Lithuania proper, but came under East Slavic and Polish cultural influences over time. The territory ...
led to armed conflict and deteriorating relations in the
interwar period In the history of the 20th century, the interwar period, also known as the interbellum (), lasted from 11 November 1918 to 1 September 1939 (20 years, 9 months, 21 days) – from the end of World War I (WWI) to the beginning of World War II ( ...
. During the
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
Polish and Lithuanian territories were occupied by both the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
and
Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...
, but relations between Poles and Lithuanians remained hostile. Following the end of World War II, both Poland and Lithuania found themselves in the
Eastern Bloc The Eastern Bloc, also known as the Communist Bloc (Combloc), the Socialist Bloc, the Workers Bloc, and the Soviet Bloc, was an unofficial coalition of communist states of Central and Eastern Europe, Asia, Africa, and Latin America that were a ...
, Poland as a Soviet
satellite state A satellite state or dependent state is a country that is formally independent but under heavy political, economic, and military influence or control from another country. The term was coined by analogy to planetary objects orbiting a larger ob ...
, Lithuania as a Soviet republic. With the
fall of communism The revolutions of 1989, also known as the Fall of Communism, were a revolutionary wave of liberal democracy movements that resulted in the collapse of most Marxist–Leninist governments in the Eastern Bloc and other parts of the world. Th ...
relations between the two countries were reestablished. Since then relations have been friendly and akin to strategic partnership in defence and security. The two countries became members of the
European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
in 2004. Both countries are members of the Council of the Baltic Sea States,
Council of Europe The Council of Europe (CoE; , CdE) is an international organisation with the goal of upholding human rights, democracy and the Law in Europe, rule of law in Europe. Founded in 1949, it is Europe's oldest intergovernmental organisation, represe ...
and
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
. Both countries share a common border of 103 km.Informacje o Polsce – informacje ogólne
. Page gives Polish PWN Encyklopedia as reference.
Because both are part of the
Schengen Area The Schengen Area ( , ) encompasses European countries that have officially abolished border controls at their common borders. As an element within the wider area of freedom, security and justice (AFSJ) policy of the European Union (EU), it ...
, there are no border controls between the countries.


Borders

File:Polska1020-c.png, Map of Poland from the early 11th century shows Polish and Lithuanian lands separated by Old Prussian and Kyivan Rus’ territories File:Mon Henrykow Slaskich (1201-1241).png, Map of Poland in the first half of the 13th century, shows a border between
Duchy of Masovia The Duchy of Masovia was a District duchy, district principality and a fiefdom of the Kingdom of Poland (1025–1385), Kingdom of Poland, existing during the Middle Ages. The state was centered in Mazovia in the northeastern Kingdom of Poland, a ...
and Lithuania File:Polska WladLokietka (1275-1300).png, Map of Poland and Lithuania around 1275–1300, with visible Polish–Lithuanian border File:Polska 1333 - 1370.png, Map of Poland and Lithuania around 1333–1370, with visible Polish–Lithuanian border File:Polska 1370 - 1382.png, Map of Poland and Lithuania around 1370–1382, with visible Polish–Lithuanian border File:Map of the Grand Duchy of Lithuania (pink) and the Crown of the Kingdom of Poland (red) in 1386 - 1434.png, Map of Poland and Lithuania around 1386–1434, with visible Polish–Lithuanian border File:C. 1560 Poland and Lithuania.jpg, 1888 English map of Poland and Lithuania before the Union of Lublin (1569) File:IRP 1466.PNG, Map of Poland and Lithuania around 1466, with visible Polish–Lithuanian border File:Poland and Lithuania in 1526.PNG, Map of Poland and Lithuania around 1526, with visible Polish–Lithuanian border File:Irp1569.jpg, Map of the Polish–Lithuanian Commonwealth after its formation in 1569, with visible Polish–Lithuanian border. Ukrainian territories were transferred under the administrative control of the Crown of Poland. File:C. 1795 Poland and Lithuania (1569-1795).jpg, 1888 English map of Poland and Lithuania circa 1795 CE, showing changes from 1569-1795 File:Lithuania-1867-1914-EN.svg, Map of Lithuania around 1867–1914, with visible Polish–Russian border (Lithuania did not exist at that time) File:Border-Lithuania-Poland-1919-1939.svg, Polish–Lithuanian border around 1918–1939


Middle ages

Lithuanian state dates to the 13th century, and it first established a border with Polish territories around the 14th century, after the destruction of the
Old Prussian Old Prussian is an extinct West Baltic language belonging to the Baltic branch of the Indo-European languages, which was once spoken by the Old Prussians, the Baltic peoples of the Prussian region. The language is called Old Prussian to av ...
and
Yotvingians Yotvingians, also called Sudovians, Jatvians, or Jatvingians, were a Western Baltic people who were closely tied to the Old Prussians. The linguist Petras Būtėnas asserts that they were closest to the Lithuanians. The Yotvingians contributed ...
tribes. Until that time most of contact between the two countries was limited to border military conflicts, such as Lithuanian raid on
Duchy of Masovia The Duchy of Masovia was a District duchy, district principality and a fiefdom of the Kingdom of Poland (1025–1385), Kingdom of Poland, existing during the Middle Ages. The state was centered in Mazovia in the northeastern Kingdom of Poland, a ...
in 1262, which killed Siemowit I of Masovia. This changed with a mid-1320s alliance between
king of Poland Poland was ruled at various times either by dukes and princes (10th to 14th centuries) or by kings (11th to 18th centuries). During the latter period, a tradition of Royal elections in Poland, free election of monarchs made it a uniquely electab ...
, Władysław Łokietek, and
Grand Duke of Lithuania This is a list of Lithuanian monarchs who ruled Lithuania from its inception until the fall of the Grand Duchy of Lithuania in 1795. The Lithuanian monarch bore the title of Grand duke, Grand Duke, with the exception of Mindaugas, who was crown ...
,
Gediminas Gediminas ( – December 1341) was Grand Duke of Lithuania from 1315 or 1316 until his death in 1341. He is considered the founder of Lithuania's capital Vilnius (see: Iron Wolf legend). During his reign, he brought under his rule lands from t ...
. Gediminas daughter Aldona married Władysław Łokietek's son and future successor,
Casimir III of Poland Casimir III the Great (; 30 April 1310 – 5 November 1370) reigned as the King of Poland from 1333 to 1370. He also later became King of Ruthenia in 1340, retaining the title throughout the Galicia–Volhynia Wars. He was the last Polish king fr ...
, in 1325, which led to improved relations. In 1358 a treaty between Duchy of Masovia and Grand Duchy of Lithuania outlined a border between the two for the first time. In 1385 the growing threat of the
Teutonic Order The Teutonic Order is a religious order (Catholic), Catholic religious institution founded as a military order (religious society), military society in Acre, Israel, Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Sa ...
to both countries led to a firmer alliance, the
Union of Krewo In a strict sense, the Union of Krewo or Act of Krėva (also spelled Union of Krevo, Act of Kreva; ; ) comprised a set of prenuptial promises made at Kreva Castle on 14 August 1385 by Jogaila, Grand Duke of Lithuania, in regard to his prospectiv ...
, which signaled the beginning of a centuries-long
Polish–Lithuanian union Polish–Lithuanian can refer to: * Polish–Lithuanian union (1385–1569) * Polish–Lithuanian Commonwealth (1569–1795) * Polish-Lithuanian identity as used to describe groups, families, or individuals with histories in the Polish–Lithuania ...
.Stephen R. Burant and Voytek Zubek, ''Eastern Europe's Old Memories and New Realities: Resurrecting the Polish–Lithuanian Union'', East European Politics and Societies 1993; 7; 370
online
/ref> This alliance was strengthened by the Polish-Lithuanian victory of the
Teutonic Knights The Teutonic Order is a Catholic religious institution founded as a military society in Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Saint Mary in Jerusalem was formed to aid Christians on their pilgrimages to t ...
in the 1410
battle of Grunwald The Battle of Grunwald was fought on 15 July 1410 during the Polish–Lithuanian–Teutonic War. The alliance of the Crown of the Kingdom of Poland and the Grand Duchy of Lithuania, led respectively by King Władysław II Jagiełło (Jogaila), a ...
. As Lithuania was increasingly threatened by the
Muscovy Muscovy or Moscovia () is an alternative name for the Principality of Moscow (1263–1547) and the Tsardom of Russia (1547–1721). It may also refer to: *Muscovy Company, an English trading company chartered in 1555 *Muscovy duck (''Cairina mosch ...
(see Muscovite–Lithuanian Wars), it sought to strengthen its ties with Poland. The union reached an important milestone in 1569, when the
Union of Lublin The Union of Lublin (; ) was signed on 1 July 1569 in Lublin, Poland, and created a single state, the Polish–Lithuanian Commonwealth, one of the largest countries in Europe at the time. It replaced the personal union of the Crown of the Kingd ...
created a new
federal state A federation (also called a federal state) is an entity characterized by a union of partially self-governing provinces, states, or other regions under a federal government (federalism). In a federation, the self-governing status of the c ...
, the
Polish–Lithuanian Commonwealth The Polish–Lithuanian Commonwealth, also referred to as Poland–Lithuania or the First Polish Republic (), was a federation, federative real union between the Crown of the Kingdom of Poland, Kingdom of Poland and the Grand Duchy of Lithuania ...
, which lasted until the
Constitution of May 3 The Constitution of 3 May 1791, titled the Government Act, was a written constitution for the Polish–Lithuanian Commonwealth that was adopted by the Great Sejm that met between 1788 and 1792. The Commonwealth was a dual monarchy comprising th ...
, 1791 and partitions. The period of the partitions saw the reversal of the previous process of
polonization Polonization or Polonisation ()In Polish historiography, particularly pre-WWII (e.g., L. Wasilewski. As noted in Смалянчук А. Ф. (Smalyanchuk 2001) Паміж краёвасцю і нацыянальнай ідэяй. Польскі ...
, with the
Lithuanian National Revival The Lithuanian National Revival, alternatively the Lithuanian National Awakening or Lithuanian nationalism (), was a period of the history of Lithuania in the 19th century, when a major part of Lithuanian-inhabited areas belonged to the Russian ...
, giving new prominence to the
Lithuanian language Lithuanian (, ) is an East Baltic languages, East Baltic language belonging to the Baltic languages, Baltic branch of the Indo-European language family. It is the language of Lithuanians and the official language of Lithuania as well as one of t ...
and culture.


Interbellum

Despite federation proposals such as Międzymorze, after the
First World War World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
Lithuania chose to pursue independent statehood instead of recreating a previous union. Differences on border issues, particularly over the cities of
Vilnius Vilnius ( , ) is the capital of and List of cities in Lithuania#Cities, largest city in Lithuania and the List of cities in the Baltic states by population, most-populous city in the Baltic states. The city's estimated January 2025 population w ...
(Wilno) and Sejny (Seinai) led to the Polish–Lithuanian War and worsened relations for most of the
interwar In the history of the 20th century, the interwar period, also known as the interbellum (), lasted from 11 November 1918 to 1 September 1939 (20 years, 9 months, 21 days) – from the end of World War I (WWI) to the beginning of World War II ( ...
period.Michael Brecher, Jonathan Wilkenfeld, ''A Study of Crisis'', University of Michigan Press, 1997,
Google Print, p.252-255
/ref> Lithuanian–Polish relations continued to deteriorate, as Polish and Lithuanian forces skirmished in the background of the
Polish–Soviet War The Polish–Soviet War (14 February 1919 – 18 March 1921) was fought primarily between the Second Polish Republic and the Russian Soviet Federative Socialist Republic, following World War I and the Russian Revolution. After the collapse ...
(and Lithuanian–Soviet War).
Polish Military Organization The Polish Military Organisation, PMO (, POW) was a secret military organization that was formed during World War I (1914–1918). Józef Piłsudski founded the group in August 1914. It adopted the name ''POW'' in November 1914 and aimed to gathe ...
staged Sejny Uprising was met with massive outrage in Lithuania. Furthermore, the image of Poles deteriorated because of the uncovered plot to overthrow sovereign Lithuanian government by the Polish Military Organization, supported by the local Polish minority. The relations worsened further still as the Polish–Lithuanian War erupted, and
Józef Piłsudski Józef Klemens Piłsudski (; 5 December 1867 – 12 May 1935) was a Polish statesman who served as the Chief of State (Poland), Chief of State (1918–1922) and first Marshal of Poland (from 1920). In the aftermath of World War I, he beca ...
ordered
Żeligowski's Mutiny Żeligowski's Mutiny (, also , ) was a Polish false flag operation led by General Lucjan Żeligowski in October 1920, which resulted in the creation of the Republic of Central Lithuania. Józef Piłsudski, the Chief of State of Poland, surreptit ...
. In the aftermath of the Polish annexation of the
Republic of Central Lithuania The Republic of Central Lithuania (, ), commonly known as the Central Lithuania, and the Middle Lithuania (, , ), was an unrecognized short-lived puppet state of Poland, that existed from 1920 to 1922. It was founded on 12 October 1920, after ...
, Lithuania severed diplomatic relations with Poland. Poland and Lithuania experienced notable crises in their relationship in 1927 (where a threat of renewed hostilities led to partial restoration of the diplomatic relations) and 1938 (when the 1938 Polish ultimatum to Lithuania forced Lithuania to agree to full restoration of the diplomatic relations). The
League of Nations The League of Nations (LN or LoN; , SdN) was the first worldwide intergovernmental organisation whose principal mission was to maintain world peace. It was founded on 10 January 1920 by the Paris Peace Conference (1919–1920), Paris Peace ...
was involved in smoothing over the conflicts in 1919–20 and 1927. After the events of 1919–20, Polish actions and the Poles themselves were viewed with a high level of suspicion in Lithuania, and vice versa. Both governments—in the era nationalism swept through Europe—treated their respective minorities harshly. In Lithuania, people declaring Polish ethnicity were officially described as Lithuanians who merely needed to be re- Lithuanianized, Polish-owned land were confiscated, Polish religious services, schools, publications, and voting rights were restricted. After Piłsudski's death, between 1935 and 1939, the Lithuanian minority in Poland was an object of
Polonisation Polonization or Polonisation ()In Polish historiography, particularly pre-WWII (e.g., L. Wasilewski. As noted in Смалянчук А. Ф. (Smalyanchuk 2001) Паміж краёвасцю і нацыянальнай ідэяй. Польскі ...
, with the government encouraging settlement of Polish army veterans in disputed regions. Almost all Lithuanian schools were closed (266) and almost all Lithuanian organizations were banned.


World War II

The issue of Polish and Lithuanian relations during the
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
is a controversial one, and some modern Lithuanian and Polish historians still differ in their interpretations of the related events, many of which are related to the treatment of Poles by the Lithuanian Nazi-collaborationist government and security forces, and the operations of Polish resistance organization of
Armia Krajowa The Home Army (, ; abbreviated AK) was the dominant resistance movement in German-occupied Poland during World War II. The Home Army was formed in February 1942 from the earlier Związek Walki Zbrojnej (Armed Resistance) established in the ...
on territories inhabited by Lithuanians and Poles. In recent years a number of common
academic conference An academic conference or scientific conference (also congress, symposium, workshop, or meeting) is an Convention (meeting), event for researchers (not necessarily academics) to present and discuss their scholarly work. Together with academic jou ...
s have started to bridge the gap between Lithuanian and Polish interpretations, but significant differences still remain.


Communist era

The
Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
put an end to independent Polish and Lithuanian states. After the war, both former states fell under the domination of the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
. Poland was shifted westwards, thus giving up most of the disputed territories previously containing significant Lithuanian minority in the
Second Polish Republic The Second Polish Republic, at the time officially known as the Republic of Poland, was a country in Central and Eastern Europe that existed between 7 October 1918 and 6 October 1939. The state was established in the final stage of World War I ...
, those territories were incorporated into the
Soviet Union The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet ...
as the Lithuanian and Belarusian Soviet Republics. At the same time many Poles from
Kresy Eastern Borderlands (), often simply Borderlands (, ) was a historical region of the eastern part of the Second Polish Republic. The term was coined during the interwar period (1918–1939). Largely agricultural and extensively multi-ethnic with ...
were allowed to leave the Soviet Union, and mostly were transferred west to
Recovered Territories The Recovered Territories or Regained Lands () are the lands east of the Oder–Neisse line, Oder-Neisse line that over the centuries were gradually lost by Poland and colonized by the Germans, and that returned to Poland after World War II. T ...
, and the
Polish minority in Lithuania The Poles in Lithuania (, ), also called Lithuanian Poles, estimated at 183,000 people in the 2021 Lithuanian census or 6.5% of Lithuania's total population, are the country's largest minority group, ethnic minority. During the Polish–Lithuani ...
(or Lithuanian SSR) was also significantly downsized. The remaining
Polish minority in Lithuania The Poles in Lithuania (, ), also called Lithuanian Poles, estimated at 183,000 people in the 2021 Lithuanian census or 6.5% of Lithuania's total population, are the country's largest minority group, ethnic minority. During the Polish–Lithuani ...
became subject to Lithuanization and
Sovietization Sovietization ( ) is the adoption of a political system based on the model of soviets (workers' councils) or the adoption of a way of life, mentality, and culture modeled after the Soviet Union. A notable wave of Sovietization (in the second me ...
policies. Under the eye of the Soviet Union, the various ethnic groups in the
Eastern Bloc The Eastern Bloc, also known as the Communist Bloc (Combloc), the Socialist Bloc, the Workers Bloc, and the Soviet Bloc, was an unofficial coalition of communist states of Central and Eastern Europe, Asia, Africa, and Latin America that were a ...
were to cooperate peacefully. To prevent creation or recreation of historical alliances that could weaken the Soviet regime, Soviet policy was aimed at minimizing the role of the historical ties between those nations, and there were few contacts of any significance between Poland and Lithuania during that period.


Modern times

The
fall of communism The revolutions of 1989, also known as the Fall of Communism, were a revolutionary wave of liberal democracy movements that resulted in the collapse of most Marxist–Leninist governments in the Eastern Bloc and other parts of the world. Th ...
in the years between 1989 and 1991 led to a formal reestablishment of relations by the Polish and Lithuanian states. Poland was highly supportive of Lithuanian independence, and became one of the first countries to recognize independent Lithuania (on 26 August 1991).Glenn E. Curtis (ed.)
Polish foreign relations with the former Soviet Republics
Poland: A Country Study, Washington: GPO for the Library of Congress, 1992
Despite that, there was a relative crisis in the early 1990s, due to alleged Lithuanian mistreatment of its Polish minority, and Lithuanian concerns that Poland sought again to put Lithuania under its sphere of influence, or even issue territorial claims. After a few years, the situation normalized, and relations improved. On 28 September 1992 the foreign ministers of both nations signed a declaration of friendship and neighborly relations and a consular convention, rejecting any territorial claims and promising to respect the rights of their corresponding minorities. On 26 April 1994 during the meeting of presidents of both countries in
Vilnius Vilnius ( , ) is the capital of and List of cities in Lithuania#Cities, largest city in Lithuania and the List of cities in the Baltic states by population, most-populous city in the Baltic states. The city's estimated January 2025 population w ...
they concluded the mutual Friendship Treaty. Both countries have since joined
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
(Poland in 1999, Lithuania in 2004, with Poland being a vocal supporter of Lithuania's accession) and the
European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
(both in 2004). However, in the late 2000s, disagreements over Lithuania's implementation of the Friendship Treaty have soured relations and cooperation on energy issues. The electricity grids of Poland and Lithuania are inter-connected but the gas pipelines of the two countries are only connected through a Russian-controlled gas pipeline. Previously stated intentions have been stalled by the row over the Friendship Treaty. Polish president
Bronisław Komorowski Bronisław Maria Komorowski (; born 4 June 1952) is a Polish politician and historian who was the fifth president of Poland from 2010 to 2015. Komorowski previously served as Ministry of National Defence (Poland), Minister of National Defence ...
during a visit to Lithuania in February 2011 expressed concerns over the deterioration of relations, and noted that the full implementation of the Friendship Treaty should allow Poles in Lithuania to use the original forms of their surnames and to access education in Polish. In case C-391/09 – Runevič-Vardyn and Wardyn the
European Court of Justice The European Court of Justice (ECJ), officially the Court of Justice (), is the supreme court of the European Union in matters of European Union law. As a part of the Court of Justice of the European Union, it is tasked with interpreting ...
ruled that the Lithuanian policy on surnames conforms to the EU law. In 2019, newly elected
President of Lithuania The president of the Republic of Lithuania () is the head of state of the Republic of Lithuania. The president directs and appoints the executive branch of the Government of Lithuania, represents the nation internationally and is the commande ...
Gitanas Nausėda exclusively made his first official foreign visit to
Warsaw Warsaw, officially the Capital City of Warsaw, is the capital and List of cities and towns in Poland, largest city of Poland. The metropolis stands on the Vistula, River Vistula in east-central Poland. Its population is officially estimated at ...
,
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
where he met with the
President of Poland The president of Poland ( ), officially the president of the Republic of Poland (), is the head of state of Poland. His or her prerogatives and duties are determined in the Constitution of Poland. The president jointly exercises the executive ...
Andrzej Duda Andrzej Sebastian Duda (born 16 May 1972) is a Polish lawyer and politician who has served as the sixth president of Poland since 2015. Before becoming president, he served as a Member of the Sejm from 2011 to 2014 and before becoming Member of ...
. Invited by Nausėda, Duda, his wife
First Lady of Poland First Lady of the Republic of Poland is an informal designation customarily applied to the wife of the President of Poland, president of the Republic of Poland (as so far all Polish president in Third Republic had wives). The First Lady does not ho ...
Agata Kornhauser-Duda Agata Kornhauser-Duda (born 2 April 1972) is First Lady of Poland since 2015 as the wife of president of Poland, Andrzej Duda. Background and family Kornhauser was born in Kraków, the child of Julian Kornhauser, a Polish people, Polish writer, ...
and the Representative Honor Guard Regiment of the Polish Armed Forces participated in the 1863–1864 uprising against Tsarist rule commanders and participants
state funeral A state funeral is a public funeral ceremony, observing the strict rules of protocol, held to honour people of national significance. State funerals usually include much pomp and ceremony as well as religious overtones and distinctive elements o ...
in
Vilnius Vilnius ( , ) is the capital of and List of cities in Lithuania#Cities, largest city in Lithuania and the List of cities in the Baltic states by population, most-populous city in the Baltic states. The city's estimated January 2025 population w ...
on 22 November 2019. During his visit to Vilnius, Duda highlighted the Central European nations' unity importance for their independence. On 15 July 2020, a large stone with engraved Vytis was erected by the Lithuanians near the monument site of Grunwald in order to commemorate the 610th year of the
Battle of Grunwald The Battle of Grunwald was fought on 15 July 1410 during the Polish–Lithuanian–Teutonic War. The alliance of the Crown of the Kingdom of Poland and the Grand Duchy of Lithuania, led respectively by King Władysław II Jagiełło (Jogaila), a ...
and to celebrate the united victory of both nations against the
Teutonic knights The Teutonic Order is a Catholic religious institution founded as a military society in Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Saint Mary in Jerusalem was formed to aid Christians on their pilgrimages to t ...
. That years commemoration ceremony was marked by the meeting of Lithuanian and Polish presidents Gitanas Nausėda and
Andrzej Duda Andrzej Sebastian Duda (born 16 May 1972) is a Polish lawyer and politician who has served as the sixth president of Poland since 2015. Before becoming president, he served as a Member of the Sejm from 2011 to 2014 and before becoming Member of ...
. On 28 July 2020, Poland, Lithuania and Ukraine entered into a new international collaboration format known as the " Lublin Triangle". It was signed in the city of
Lublin Lublin is List of cities and towns in Poland, the ninth-largest city in Poland and the second-largest city of historical Lesser Poland. It is the capital and the centre of Lublin Voivodeship with a population of 336,339 (December 2021). Lublin i ...
, eastern Poland, by the Foreign Ministers of Poland, Lithuania and Ukraine: Jacek Czaputowicz,
Linas Linkevičius Linas is a Lithuanian male given name. It is the Lithuanian form of the name Linus, which derives from the Greek for "flax". The female equivalent is Lina. Linas may refer to: People * Linas Adomaitis (born 1976), Lithuanian musician * Linas Als ...
and Dmytro Kuleba respectively. The cooperation will not only concern defense issues but will also involve strengthening economic cooperation, trade, and tourism between the three countries. A joint declaration on the creation of the Lublin triangle stressed the importance of intensifying the cooperation between the EU,
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
, and the
Eastern Partnership The Eastern Partnership (EaP) is a joint initiative of the European Union, together with its member states, and six Eastern Europe, Eastern European countries. The EaP framework governs the EU's relationship with the post-Soviet states of Armen ...
and paying special attention to the development of the Three Seas Initiative. On 17 September 2021, Polish and Lithuanian Prime Ministers
Mateusz Morawiecki Mateusz Jakub Morawiecki (; born 20 June 1968) is a Polish economist, historian and politician who served as the prime minister of Poland between 2017 and 2023. A member of the Law and Justice (PiS) party, he previously served in the Cabinet of ...
and
Ingrida Šimonytė Ingrida Šimonytė (; born 15 November 1974) is a Lithuanian politician, public servant and economist who served as the 17th Prime Minister of Lithuania, prime minister of Lithuania from 2020 to 2024. She has been a Member of the Seimas for the A ...
signed an agreement on bilateral cooperation after attending an intergovernmental meeting in Warsaw. The Polish PM stated that "This is a further step towards closer economic, commercial, business and investment ties" between Poland and Lithuania which is very important considering the current geopolitical challenges faced by the two nations. The talks also covered such key areas as energy, climate, culture, science and education. On 26 November 2022, a Lublin Triangle format meeting between the Prime Ministers of Poland, Lithuania and Ukraine was held in Kyiv. In a joint statement the leaders stressed the role of the Lublin Triangle in "consolidating international support for Ukraine in countering Russia's armed aggression", "confirmed their readiness to continue active cooperation in restoring the territorial integrity and sovereignty of Ukraine within its internationally recognized borders", "condemned systemic war crimes committed by Russia's forces in regions of Ukraine" and "confirmed the further importance of trilateral cooperation in such areas as: military and defense cooperation using
NATO The North Atlantic Treaty Organization (NATO ; , OTAN), also called the North Atlantic Alliance, is an intergovernmental organization, intergovernmental Transnationalism, transnational military alliance of 32 Member states of NATO, member s ...
and the EU potential".


Diaspora

According to census data from 2011, there were 200,317
Poles Pole or poles may refer to: People *Poles (people), another term for Polish people, from the country of Poland * Pole (surname), including a list of people with the name * Pole (musician) (Stefan Betke, born 1967), German electronic music artist ...
living in Lithuania and 7,863
Lithuanians Lithuanians () are a Balts, Baltic ethnic group. They are native to Lithuania, where they number around 2,378,118 people. Another two million make up the Lithuanian diaspora, largely found in countries such as the Lithuanian Americans, United Sta ...
living in Poland, however, according to the Lithuanian embassy in Poland, the estimated number of Lithuanian inhabitants in Poland is about 15,000.


European Union

Both countries became members of the
European Union The European Union (EU) is a supranational union, supranational political union, political and economic union of Member state of the European Union, member states that are Geography of the European Union, located primarily in Europe. The u ...
in 2004.


Diplomatic missions

* Lithuania has an embassy in
Warsaw Warsaw, officially the Capital City of Warsaw, is the capital and List of cities and towns in Poland, largest city of Poland. The metropolis stands on the Vistula, River Vistula in east-central Poland. Its population is officially estimated at ...
and a consulate in Sejny. * Poland has an embassy in
Vilnius Vilnius ( , ) is the capital of and List of cities in Lithuania#Cities, largest city in Lithuania and the List of cities in the Baltic states by population, most-populous city in the Baltic states. The city's estimated January 2025 population w ...
.


See also

* Lithuanian–Polish–Ukrainian Brigade * 1938 Polish ultimatum to Lithuania *
Polish–Lithuanian Commonwealth The Polish–Lithuanian Commonwealth, also referred to as Poland–Lithuania or the First Polish Republic (), was a federation, federative real union between the Crown of the Kingdom of Poland, Kingdom of Poland and the Grand Duchy of Lithuania ...
*
Foreign relations of Lithuania Lithuania is a European country located on the south-eastern shore of the Baltic Sea. It is a member of the United Nations, the Organisation for Security and Cooperation in Europe, the European Union, the North Atlantic Treaty Organisation and ...
*
Foreign relations of Poland The Republic of Poland is a Central European country and member of the European Union and NATO, among others. Poland wields considerable influence in Central Europe, Central and Eastern Europe and is a middle power in international affairs. The f ...
*
Lithuanian minority in Poland The Lithuanian minority in Poland (; ) consists of 8,000 people (according to the Polish census of 2011) living chiefly in the Podlaskie Voivodeship (mainly in Gmina Puńsk), in the north-eastern part of Poland. The Lithuanian embassy in Poland ...
*
Polish minority in Lithuania The Poles in Lithuania (, ), also called Lithuanian Poles, estimated at 183,000 people in the 2021 Lithuanian census or 6.5% of Lithuania's total population, are the country's largest minority group, ethnic minority. During the Polish–Lithuani ...


References


External links


Polish-Lithuanian Co-operation
- on post-1991 Polish–Lithuanian relations, Polish Embassy in Lithuania
Lithuanian PM ‘I know what Lithuania’s Poles need’
Andrius Kubilius interview to
Gazeta Wyborcza (; ''The Electoral Gazette'' in English) is a Polish nationwide daily newspaper based in Warsaw, Poland. It was launched on 8 May 1989 on the basis of the Polish Round Table Agreement and as a press organ of the Solidarity (Polish trade union), t ...
on the relations between two states, 4 November 2010 *B. Dundulis
A historiographic survey of Lithuanian-Polish relations
Lituanus ''Lituanus'' is an English language quarterly journal dedicated to Lithuanian and Baltic languages, linguistics, political science, arts, history, literature, and related topics. It is published by the non-profit Lituanus Foundation, Inc., and ha ...
, Lithuanian quarterly journal of arts and sciences, Volume 17, No.4 - Winter 1971 *Joanna Rohozinska, , Central Europe Review, Vol 1, No 13, 20 September 1999 * *Virgil Krapauskas, ''Political change in Poland and Lithuania: The impact on Polish-Lithuanian ethnic relations as reflected in Lithuanian-language publications in Poland (1945-1991)'', Journal of Baltic Studies, Volume 29, Issue 3 Autumn 1998, pages 261 - 278
Lithuanian Ministry of Foreign affairs: list of bilateral treaties with Poland (in Lithuanian only)Lithuanian embassy in Warsaw Lithuanian consulate general in Sejny (in Lithuanian and Polish only)Polish embassy in Vilnius
{{DEFAULTSORT:Lithuania-Poland relations
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It extends from the Baltic Sea in the north to the Sudetes and Carpathian Mountains in the south, bordered by Lithuania and Russia to the northeast, Belarus and Ukrai ...
Bilateral relations of Poland