NATO
The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two N ...
is a
military alliance
A military alliance is a formal agreement between nations concerning national security. Nations in a military alliance agree to active participation and contribution to the defense of others in the alliance in the event of a crisis. (Online) ...
of
twenty-eight European and two North American countries that constitutes a system of
collective defense
Collective security can be understood as a security arrangement, political, regional, or global, in which each state in the system accepts that the security of one is the concern of all, and therefore commits to a collective response to threats t ...
. The process of joining the alliance is governed by Article 10 of the
North Atlantic Treaty
The North Atlantic Treaty, also referred to as the Washington Treaty, is the treaty that forms the legal basis of, and is implemented by, the North Atlantic Treaty Organization (NATO). The treaty was signed in Washington, D.C., on 4 April 194 ...
, which allows for the invitation of "other European States" only and by subsequent agreements. Countries wishing to join must meet certain requirements and complete a multi-step process involving political dialog and military integration. The accession process is overseen by the
North Atlantic Council
The North Atlantic Council (NAC) is the principal political decision-making body of the North Atlantic Treaty Organization (NATO), consisting of permanent representatives of its member countries. It was established by Article 9 of the North ...
, NATO's governing body. NATO was formed in 1949 with
twelve founding members and has added new members eight times. The first additions were
Greece
Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders wi ...
and
Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a transcontinental country located mainly on the Anatolian Peninsula in Western Asia, with a small portion on the Balkan Peninsula ...
in 1952. In May 1955,
West Germany
West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 ...
joined NATO, which was one of the conditions agreed to as part of the end of the country's occupation by France, the United Kingdom, and the United States, prompting the Soviet Union to form their own collective security alliance (commonly called the
Warsaw Pact
The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republi ...
) later that month. Following the end of the
Franco regime
Francoist Spain ( es, España franquista), or the Francoist dictatorship (), was the period of Spanish history between 1939 and 1975, when Francisco Franco ruled Spain after the Spanish Civil War with the title . After his death in 1975, Spa ...
, newly-democratic
Spain
, image_flag = Bandera de España.svg
, image_coat = Escudo de España (mazonado).svg
, national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond")
, national_anthem = (English: "Royal March")
, ...
chose to join NATO in 1982.
In 1990, the
Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
and NATO reached an agreement that a
reunified Germany would join NATO under
West Germany
West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 ...
's pre-existing membership. However, restrictions were agreed to on the deployment of NATO troops on former
East German
East Germany, officially the German Democratic Republic (GDR; german: Deutsche Demokratische Republik, , DDR, ), was a country that existed from its creation on 7 October 1949 until its dissolution on 3 October 1990. In these years the state ...
territory. The
dissolution of the Soviet Union
The dissolution of the Soviet Union, also negatively connoted as rus, Разва́л Сове́тского Сою́за, r=Razvál Sovétskogo Soyúza, ''Ruining of the Soviet Union''. was the process of internal disintegration within the Sov ...
in 1991 led many former Warsaw Pact and
post-Soviet states
The post-Soviet states, also known as the former Soviet Union (FSU), the former Soviet Republics and in Russia as the near abroad (russian: links=no, ближнее зарубежье, blizhneye zarubezhye), are the 15 sovereign states that wer ...
to initiate discussions about joining NATO.
Poland
Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populou ...
,
Hungary
Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Cr ...
, and the
Czech Republic
The Czech Republic, or simply Czechia, is a landlocked country in Central Europe. Historically known as Bohemia, it is bordered by Austria to the south, Germany to the west, Poland to the northeast, and Slovakia to the southeast. The ...
became NATO members in 1999, amid much debate within NATO itself and Russian opposition. NATO then formalized the process of joining the organization with "Membership Action Plans", which aided the accession of seven
Central and Eastern Europe
Central and Eastern Europe is a term encompassing the countries in the Baltics, Central Europe, Eastern Europe and Southeast Europe (mostly the Balkans), usually meaning former communist states from the Eastern Bloc and Warsaw Pact in Europ ...
countries shortly before the
2004 Istanbul summit:
Bulgaria
Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedo ...
,
Estonia
Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, an ...
,
Latvia
Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...
,
Lithuania
Lithuania (; lt, Lietuva ), officially the Republic of Lithuania ( lt, Lietuvos Respublika, links=no ), 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. Lithuania ...
,
Romania
Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...
,
Slovakia
Slovakia (; sk, Slovensko ), officially the Slovak Republic ( sk, Slovenská republika, links=no ), is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the ...
, and
Slovenia
Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...
. Two countries on the
Adriatic Sea
The Adriatic Sea () is a body of water separating the Italian Peninsula from the Balkan Peninsula. The Adriatic is the northernmost arm of the Mediterranean Sea, extending from the Strait of Otranto (where it connects to the Ionian Sea) to th ...
Albania
Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and share ...
and
Croatia
, image_flag = Flag of Croatia.svg
, image_coat = Coat of arms of Croatia.svg
, anthem = " Lijepa naša domovino"("Our Beautiful Homeland")
, image_map =
, map_caption =
, capi ...
joined on 1 April 2009 before the
2009 Strasbourg–Kehl summit. The most recent member states to join NATO were
Montenegro
)
, image_map = Europe-Montenegro.svg
, map_caption =
, image_map2 =
, capital = Podgorica
, coordinates =
, largest_city = capital
, official_languages = ...
on 5 June 2017 and
North Macedonia
North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Socialist Feder ...
on 27 March 2020.
In July 2022, NATO invited
Finland
Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bot ...
and
Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic countries, Nordic c ...
to join the organization, and the
ratification
Ratification is a principal's approval of an act of its agent that lacked the authority to bind the principal legally. Ratification defines the international act in which a state indicates its consent to be bound to a treaty if the parties inten ...
process for the two countries is in progress.
[ In September 2022, ]Ukraine
Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inva ...
applied for NATO membership. , two additional states have formally informed NATO of their membership aspirations: Bosnia and Herzegovina
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and ...
and Georgia
Georgia most commonly refers to:
* Georgia (country), a country in the Caucasus region of Eurasia
* Georgia (U.S. state), a state in the Southeast United States
Georgia may also refer to:
Places
Historical states and entities
* Related to the ...
.[ ]Kosovo
Kosovo ( sq, Kosova or ; sr-Cyrl, Косово ), officially the Republic of Kosovo ( sq, Republika e Kosovës, links=no; sr, Република Косово, Republika Kosovo, links=no), is a international recognition of Kosovo, partiall ...
also aspires to join NATO.[ Joining the alliance is a debate topic in several other European countries outside the alliance, including ]Austria
Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...
, Ireland
Ireland ( ; ga, Éire ; Ulster-Scots: ) is an island in the North Atlantic Ocean, in north-western Europe. It is separated from Great Britain to its east by the North Channel, the Irish Sea, and St George's Channel. Ireland is the s ...
, Malta
Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...
, Moldova
Moldova ( , ; ), officially the Republic of Moldova ( ro, Republica Moldova), is a landlocked country in Eastern Europe. It is bordered by Romania to the west and Ukraine to the north, east, and south. The unrecognised state of Transnistri ...
, and Serbia
Serbia (, ; Serbian: , , ), officially the Republic of Serbia ( Serbian: , , ), is a landlocked country in Southeastern and Central Europe, situated at the crossroads of the Pannonian Basin and the Balkans. It shares land borders with Hu ...
.
Past enlargements
Cold War
Twelve countries were part of the founding of NATO: Belgium
Belgium, ; french: Belgique ; german: Belgien officially the Kingdom of Belgium, is a country in Northwestern Europe. The country is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeast, France to ...
, Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by to ...
, Denmark
)
, song = ( en, "King Christian stood by the lofty mast")
, song_type = National and royal anthem
, image_map = EU-Denmark.svg
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Kingdom of Denmark
, establish ...
, France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
, Iceland
Iceland ( is, Ísland; ) is a Nordic island country in the North Atlantic Ocean and in the Arctic Ocean. Iceland is the most sparsely populated country in Europe. Iceland's capital and largest city is Reykjavík, which (along with its ...
, Italy
Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...
, Luxembourg
Luxembourg ( ; lb, Lëtzebuerg ; french: link=no, Luxembourg; german: link=no, Luxemburg), officially the Grand Duchy of Luxembourg, ; french: link=no, Grand-Duché de Luxembourg ; german: link=no, Großherzogtum Luxemburg is a small lan ...
, the Netherlands
)
, anthem = ( en, "William of Nassau")
, image_map =
, map_caption =
, subdivision_type = Sovereign state
, subdivision_name = Kingdom of the Netherlands
, established_title = Before independence
, established_date = Spanish Netherl ...
, Norway
Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and t ...
, Portugal
Portugal, officially the Portuguese Republic ( pt, República Portuguesa, links=yes ), is a country whose mainland is located on the Iberian Peninsula of Southwestern Europe, and whose territory also includes the Atlantic archipelagos of ...
, the United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
, and the United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
. The start of the Cold War between 1947 and 1953 saw an ideological and economic divide between the capitalist states of Western Europe backed by United States with its Marshall Plan
The Marshall Plan (officially the European Recovery Program, ERP) was an American initiative enacted in 1948 to provide foreign aid to Western Europe. The United States transferred over $13 billion (equivalent of about $ in ) in economic re ...
and the Truman Doctrine
The Truman Doctrine is an American foreign policy that pledged American "support for democracies against authoritarian threats." The doctrine originated with the primary goal of containing Soviet geopolitical expansion during the Cold War. It was ...
, and the communist states of Eastern Europe, backed by the Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
. As such, opposition to Soviet-style communism became a defining characteristic of the organization and the anti-communist
Anti-communism is Political movement, political and Ideology, ideological opposition to communism. Organized anti-communism developed after the 1917 October Revolution in the Russian Empire, and it reached global dimensions during the Cold War, w ...
governments of Greece
Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders wi ...
, which had just fought a civil war
A civil war or intrastate war is a war between organized groups within the same state (or country).
The aim of one side may be to take control of the country or a region, to achieve independence for a region, or to change government policies ...
against a pro-communist army, and Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
, whose newly-elected Democrat Party were staunchly pro-American, came under internal and external pressure to join the alliance, which both did in February 1952.[
The United States, France, and the United Kingdom initially agreed to end their occupation of Germany in May 1952 under the ]Bonn–Paris conventions
The Bonn–Paris conventions were signed in May 1952 and came into force after the 1955 ratification. The conventions put an end to the Allied occupation of West Germany.Joachim von ElbU.S. Embassy Bonn HistoryU.S. Diplomatic Mission to Germa ...
on the condition that the new Federal Republic of Germany, commonly called West Germany
West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 ...
, would join NATO, due to concerns over a non-aligned West Germany being allowed to rearm. The allies also dismissed Soviet proposals of a neutral-but-united Germany as insincere.[ France, however, delayed the start of the process, in part on the condition that a referendum be held in Saar on its future status, and a revised treaty was signed on 23 October 1954, allowing the ]North Atlantic Council
The North Atlantic Council (NAC) is the principal political decision-making body of the North Atlantic Treaty Organization (NATO), consisting of permanent representatives of its member countries. It was established by Article 9 of the North ...
to formally invite West Germany. Ratification of their membership was completed in May 1955.[ That month the Soviet Union established its own collective defense alliance, commonly called the ]Warsaw Pact
The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republi ...
, in part as a response to West German membership in NATO.[ In 1974, Greece suspended its NATO membership over the ]Turkish invasion of Cyprus
The Turkish invasion of Cyprus began on 20 July 1974 and progressed in two phases over the following month. Taking place upon a background of Cypriot intercommunal violence, intercommunal violence between Greek Cypriots, Greek and Turkish ...
, but rejoined in 1980 with Turkey's cooperation.[
Relations between NATO members and Spain under dictator Francisco Franco were strained for many years, in large part due to Franco's cooperation with ]Axis powers
The Axis powers, ; it, Potenze dell'Asse ; ja, 枢軸国 ''Sūjikukoku'', group=nb originally called the Rome–Berlin Axis, was a military coalition that initiated World War II and fought against the Allies. Its principal members were ...
during World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
.[ Though staunchly anti-communist, ]Franco
Franco may refer to:
Name
* Franco (name)
* Francisco Franco (1892–1975), Spanish general and dictator of Spain from 1939 to 1975
* Franco Luambo (1938–1989), Congolese musician, the "Grand Maître"
Prefix
* Franco, a prefix used when ref ...
reportedly feared in 1955 that a Spanish application for NATO membership might be vetoed by its members at the time.[ Franco however did sign regular defense agreements with individual members, including the 1953 ]Pact of Madrid
The Pact of Madrid, signed on 23 September 1953 by Francoist Spain and the United States, was a significant effort to break the international isolation of Spain after World War II, together with the Concordat of 1953. This development came at a t ...
with the United States, which allowed their use of air and naval bases in Spain.[ Following Franco's death in 1975, ]Spain
, image_flag = Bandera de España.svg
, image_coat = Escudo de España (mazonado).svg
, national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond")
, national_anthem = (English: "Royal March")
, ...
began a transition to democracy
Democratization, or democratisation, is the transition to a more democratic political regime, including substantive political changes moving in a democratic direction. It may be a hybrid regime in transition from an authoritarian regime to a full ...
, and came under international pressure to normalize relations with other western democracies. Prime Minister Adolfo Suárez
Adolfo Suárez González, 1st Duke of Suárez (; 25 September 1932 – 23 March 2014) was a Spanish lawyer and politician. Suárez was Spain's first democratically elected prime minister since the Second Spanish Republic and a key figure in th ...
, first elected in 1976, proceeded carefully on relations with NATO due to divisions in his coalition over the US-use of bases. In February 1981, following a failed coup attempt, Leopoldo Calvo-Sotelo
Leopoldo Ramón Pedro Calvo-Sotelo y Bustelo, 1st Marquess of Ría de Ribadeo (; 14 April 1926 – 3 May 2008), usually known as Leopoldo Calvo-Sotelo, was Prime Minister of Spain between 1981 and 1982.
Early life and career
Calvo-Sotelo was b ...
became Prime Minister and campaigned strongly for NATO membership, in part to improve civilian control over the military, and Spain's NATO membership was approved in June 1982.[ A Spanish referendum in 1986 confirmed popular support for remaining in NATO.
During the mid-1980s the strength and cohesion of the Warsaw Pact, which had served as the main institution rivaling NATO, began to deteriorate. By 1989 the ]Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
was unable to stem the democratic and nationalist movements which were rapidly gaining ground. Poland held multiparty elections in June 1989 that ousted the Soviet allied Polish Workers' Party
The Polish Workers' Party ( pl, Polska Partia Robotnicza, PPR) 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 ...
and the peaceful opening of the Berlin Wall
The Berlin Wall (german: Berliner Mauer, ) was a guarded concrete barrier that encircled West Berlin from 1961 to 1989, separating it from East Berlin and East Germany (GDR). Construction of the Berlin Wall was commenced by the government ...
that November symbolized the end of the Warsaw Pact as a way of enforcing Soviet control. The fall of the Berlin Wall
The fall of the Berlin Wall (german: Mauerfall) on 9 November 1989, during the Peaceful Revolution, was a pivotal event in world history which marked the destruction of the Berlin Wall and the figurative Iron Curtain and one of the series of eve ...
is recognized to be the end of the Cold War and ushered in a new period for Europe and NATO enlargement.[
]
German reunification
Negotiations to reunite East and West Germany took place throughout 1990, resulting in the signing of the Two Plus Four Treaty
The Treaty on the Final Settlement with Respect to Germany (german: Vertrag über die abschließende Regelung in Bezug auf Deutschland;
rus, Договор об окончательном урегулировании в отношении Ге ...
in September 1990. To secure Soviet approval of a united Germany remaining in NATO, it was agreed that foreign troops and nuclear weapons would not be stationed in the former East Germany, which officially joined the Federal Republic of Germany on 1990.[ There is no mention of NATO expansion into any other country in the September–October 1990 agreements on German reunification.][ Whether or not representatives from NATO member states informally committed to not enlarge NATO into other parts of Eastern Europe during these and contemporary negotiations with Soviet counterparts has long been a matter of dispute among historians and international relations scholars.][
The Soviet Union survived the termination of the Warsaw Pact in February 1991, although it was significantly weakened. A stagnant economy and nationalist tensions, including declarations of independence by Baltic republics, further fractured the Union. Following the failure of the ]New Union Treaty
The New Union Treaty (russian: link=no, Новый союзный договор, Novyy soyuznyy dogovor) was a draft treaty that would have replaced the 1922 Treaty on the Creation of the Union of Soviet Socialist Republics, Treaty on the Crea ...
, the leadership of the remaining constituent republics of the Soviet Union, starting with Ukraine in August 1991, declared their independence and initiated the dissolution of the Soviet Union
The dissolution of the Soviet Union, also negatively connoted as rus, Разва́л Сове́тского Сою́за, r=Razvál Sovétskogo Soyúza, ''Ruining of the Soviet Union''. was the process of internal disintegration within the Sov ...
, which was completed in December of that year. Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
, led by President Boris Yeltsin
Boris Nikolayevich Yeltsin ( rus, Борис Николаевич Ельцин, p=bɐˈrʲis nʲɪkɐˈla(j)ɪvʲɪtɕ ˈjelʲtsɨn, a=Ru-Boris Nikolayevich Yeltsin.ogg; 1 February 1931 – 23 April 2007) was a Soviet and Russian politician wh ...
, became the most prominent of the independent states.[ The Westernization trend of many former Soviet allied states led them to privatize their economies and formalize their relationships with NATO countries, the first step for many towards European integration and possible NATO membership.][
]
By August 1993, Polish President Lech Wałęsa
Lech Wałęsa (; ; born 29 September 1943) is a Polish statesman, dissident, and Nobel Peace Prize laureate, who served as the President of Poland between 1990 and 1995. After winning the 1990 election, Wałęsa became the first democratica ...
was actively campaigning for his country to join NATO, at which time Yeltsin reportedly told him that Russia did not perceive its membership in NATO as a threat to his country. Yeltsin however retracted this informal declaration the following month,[ writing that expansion "would violate the spirit of the treaty on the final settlement" which "precludes the option of expanding the NATO zone into the East."][ During one of ]James Baker
James Addison Baker III (born April 28, 1930) is an American attorney, diplomat and statesman. A member of the Republican Party, he served as the 10th White House Chief of Staff and 67th United States Secretary of the Treasury under President ...
's 1990 talks with Soviet leader Mikhail Gorbachev
Mikhail Sergeyevich Gorbachev (2 March 1931 – 30 August 2022) was a Soviet politician who served as the 8th and final leader of the Soviet Union from 1985 to dissolution of the Soviet Union, the country's dissolution in 1991. He served a ...
, Baker did suggest that the German reunification negotiations could have resulted in an agreement where "there would be no extension of NATO's jurisdiction for forces of NATO one inch to the east,"[ and historians like Mark Kramer have interpreted it as applying, at least in the Soviets' understanding, to all of Eastern Europe.][ Gorbachev later stated that NATO expansion was "not discussed at all" in 1990, but, like Yeltsin, described the expansion of NATO past East Germany as "a violation of the spirit of the statements and assurances made to us in 1990."][
This view, that informal assurances were given by diplomats from NATO members to the Soviet Union in 1990, is common in counties like Russia,][ and, according to political scientist ]Marc Trachtenberg Marc Trachtenberg (born February 9, 1946) is a professor of Political Science at the University of California, Los Angeles. He received his Ph.D in History from the University of California, Berkeley in 1974 and taught for many years for the history ...
, available evidence suggests that allegations made since then by Russian leadership about the existence of such assurances "were by no means baseless."[ Yeltsin was succeeded in 2000 by ]Vladimir Putin
Vladimir Vladimirovich Putin; (born 7 October 1952) is a Russian politician and former intelligence officer who holds the office of president of Russia. Putin has served continuously as president or prime minister since 1999: as prime min ...
, who further promoted the idea that guarantees about enlargement were made in 1990, including during a 2007 speech in Munich.[ This impression was later used by him as part of his justification for Russia's 2014 actions in Ukraine and the ]Russian Invasion of Ukraine in 2022
On 24 February 2022, in a major escalation of the Russo-Ukrainian War, which began in 2014. The invasion has resulted in tens of thousands of deaths on both sides. It has caused Europe's List of largest refugee crises, largest refugee cris ...
.
Visegrád Group
In February 1991, Poland, Hungary, and Czechoslovakia formed the Visegrád Group
The Visegrád Group (also known as the Visegrád Four, the V4, or the European Quartet) is a cultural and political alliance of four Central European countries: the Czech Republic, Hungary, Poland, and Slovakia. The alliance aims to advance co-o ...
to push for European integration
European integration is the process of industrial, economic integration, economic, political, legal, social integration, social, and cultural Regional integration, integration of states wholly or partially in Europe or nearby. European integrat ...
under the European Union
The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...
and NATO, as well as to conduct military reforms in line with NATO standards. Internal NATO reaction to these former Warsaw Pact
The Warsaw Pact (WP) or Treaty of Warsaw, formally the Treaty of Friendship, Cooperation and Mutual Assistance, was a collective defense treaty signed in Warsaw, Poland, between the Soviet Union and seven other Eastern Bloc socialist republi ...
countries was initially negative, but by the 1991 Rome summit
The 1991 Rome summit was the 12th NATO summit bringing the leaders of member nations together at the same time. The formal sessions and informal meetings in Rome, Italy took place on 7–8 November 1991. in November, members agreed to a series of goals that could lead to accession, such as market and democratic liberalization, and that NATO should be a partner in these efforts. Debate within the American government as to whether enlargement of NATO was feasible or desirable began during the George H.W. Bush administration.[ By mid-1992, a consensus emerged within the administration that NATO enlargement was a wise ]realpolitik
''Realpolitik'' (; ) refers to enacting or engaging in diplomatic or political policies based primarily on considerations of given circumstances and factors, rather than strictly binding itself to explicit ideological notions or moral and ethical ...
measure to strengthen Euro-American hegemony.[ In the absence of NATO enlargement, Bush administration officials worried that the European Union might fill the security vacuum in ]Central Europe
Central Europe is an area of Europe between Western Europe and Eastern Europe, based on a common historical, social and cultural identity. The Thirty Years' War (1618–1648) between Catholicism and Protestantism significantly shaped the area' ...
, and thus challenge American post-Cold War influence.[ There was further debate during the ]Presidency of Bill Clinton
Bill Clinton's tenure as the 42nd president of the United States began with his first inauguration on January 20, 1993, and ended on January 20, 2001. Clinton, a Democrat from Arkansas, took office following a decisive election victory over Re ...
between a rapid offer of full membership to several select countries versus a slower, more limited membership to a wide range of states over a longer time span. Victory by the Republican Party, who advocated for aggressive expansion, in the 1994 US congressional election helped sway US policy in favor of wider full-membership enlargement, which the US ultimately pursued in the following years.[ In 1996, Clinton called for former Warsaw Pact countries and post-Soviet republics to join NATO, and made NATO enlargement a part of his foreign policy.][
That year, Russian leaders like Foreign Minister ]Andrei Kozyrev
Andrei Vladimirovich Kozyrev (russian: Андре́й Влади́мирович Ко́зырев; born 27 March 1951) is a Russian politician who served as the former and the first Minister of Foreign Affairs of the Russian Federation under Pres ...
indicated their country's opposition to NATO enlargement.[ While Russian President Boris Yeltsin did sign an agreement with NATO in May 1997 that included text referring to new membership, he clearly described NATO expansion as "unacceptable" and a threat to Russian security in his December 1997 National Security Blueprint.][ Russian military actions, including the , were among the factors driving ]Central and Eastern Europe
Central and Eastern Europe is a term encompassing the countries in the Baltics, Central Europe, Eastern Europe and Southeast Europe (mostly the Balkans), usually meaning former communist states from the Eastern Bloc and Warsaw Pact in Europ ...
an countries, particularly those with memories of similar Soviet offensives, to push for NATO application and ensure their long-term security.[ Political parties reluctant to move on NATO membership were voted out of office, including the ]Bulgarian Socialist Party
The Bulgarian Socialist Party ( bg, Българска социалистическа партия, translit=Balgarska sotsialisticheska partiya, BSP), also known as The Centenarian ( bg, Столетницата, links=no, translit=Stoletnitsat ...
in 1997 and Slovak HZDS in 1998. Hungary's interest in joining was confirmed by a November 1997 referendum that returned 85.3% in favor of membership.[ During this period, wider forums for regional cooperation between NATO and its eastern neighbors were set up, including the ]North Atlantic Cooperation Council
The Euro-Atlantic Partnership Council (EAPC) is a post–Cold War, North Atlantic Treaty Organization (NATO) institution. The EAPC is a multilateral forum created to improve relations between NATO and non-NATO countries in Europe and Central Asi ...
(later the Euro-Atlantic Partnership Council
The Euro-Atlantic Partnership Council (EAPC) is a post–Cold War, North Atlantic Treaty Organization (NATO) institution. The EAPC is a multilateral forum created to improve relations between NATO and non-NATO countries in Europe and Central Asi ...
) and the Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
.
While the other Visegrád members were invited to join NATO at its 1997 Madrid summit, Slovakia was excluded based on what several members considered undemocratic actions by nationalist Prime Minister Vladimír Mečiar
Vladimír Mečiar (; born 26 July 1942) is a Slovak politician who served as the prime minister of Slovakia three times, from 1990 to 1991, from 1992 to 1994 and from 1994 to 1998. He was the leader of the People's Party - Movement for a Democra ...
. Romania
Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...
and Slovenia
Slovenia ( ; sl, Slovenija ), officially the Republic of Slovenia (Slovene: , abbr.: ''RS''), is a country in Central Europe. It is bordered by Italy to the west, Austria to the north, Hungary to the northeast, Croatia to the southeast, and ...
were both considered for invitation in 1997, and each had the backing of a prominent NATO member, France and Italy respectively, but support for this enlargement was not unanimous between members, nor within individual governments, including in the US Congress
The United States Congress is the legislature of the federal government of the United States. It is bicameral, composed of a lower body, the House of Representatives, and an upper body, the Senate. It meets in the U.S. Capitol in Washingto ...
. In an open letter to US President Bill Clinton
William Jefferson Clinton ( né Blythe III; born August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and agai ...
, more than forty foreign policy experts including Bill Bradley
William Warren Bradley (born July 28, 1943) is an American politician and former professional basketball player. He served three terms as a Democratic U.S. senator from New Jersey (1979–1997). He ran for the Democratic Party's nomination f ...
, Sam Nunn
Samuel Augustus Nunn Jr. (born September 8, 1938) is an American politician who served as a United States Senator from Georgia (1972–1997) as a member of the Democratic Party.
After leaving Congress, Nunn co-founded the Nuclear Threat Initiat ...
, Gary Hart
Gary Warren Hart (''né'' Hartpence; born November 28, 1936) is an American politician, diplomat, and lawyer. He was the front-runner for the 1988 Democratic presidential nomination until he dropped out amid revelations of extramarital affairs. ...
, Paul Nitze
Paul Henry Nitze (January 16, 1907 – October 19, 2004) was an American politician who served as United States Deputy Secretary of Defense, U.S. Secretary of the Navy, and Director of Policy Planning for the U.S. State Department. He is best kn ...
, and Robert McNamara
Robert Strange McNamara (; June 9, 1916 – July 6, 2009) was an American business executive and the eighth United States Secretary of Defense, serving from 1961 to 1968 under Presidents John F. Kennedy and Lyndon B. Johnson. He remains the Lis ...
expressed their concerns about NATO expansion as both expensive and unnecessary given the lack of an external threat from Russia at that time. Hungary, Poland, and the Czech Republic officially joined NATO in March 1999.[
]
Vilnius Group
At the 1999 Washington summit NATO issued new guidelines for membership with individualized " Membership Action Plans" for Albania
Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and share ...
, Bulgaria
Bulgaria (; bg, България, Bǎlgariya), officially the Republic of Bulgaria,, ) is a country in Southeast Europe. It is situated on the eastern flank of the Balkans, and is bordered by Romania to the north, Serbia and North Macedo ...
, Estonia
Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, an ...
, Latvia
Latvia ( or ; lv, Latvija ; ltg, Latveja; liv, Leţmō), officially the Republic of Latvia ( lv, Latvijas Republika, links=no, ltg, Latvejas Republika, links=no, liv, Leţmō Vabāmō, links=no), is a country in the Baltic region of ...
, Lithuania
Lithuania (; lt, Lietuva ), officially the Republic of Lithuania ( lt, Lietuvos Respublika, links=no ), 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. Lithuania ...
, North Macedonia
North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Socialist Feder ...
, Romania, Slovakia, and Slovenia in order to standardize the process for new members. In May 2000, these countries joined with Croatia
, image_flag = Flag of Croatia.svg
, image_coat = Coat of arms of Croatia.svg
, anthem = " Lijepa naša domovino"("Our Beautiful Homeland")
, image_map =
, map_caption =
, capi ...
to form the Vilnius Group
The Vilnius Group was an organization of NATO aspirant countries, created in May 2000, aimed at practical cooperation, exchange of information and lobbying for their candidacy in the NATO capitals.
As motto of the Vilnius group was chosen:
:''Wh ...
in order to cooperate and lobby for common NATO membership, and by the 2002 Prague summit seven were invited for membership, which took place at the 2004 Istanbul summit.[ Slovenia had held a referendum on NATO the previous year, with 66% approving of membership.][
Russia was particularly upset with the addition of the three ]Baltic states
The Baltic states, et, Balti riigid or the Baltic countries is a geopolitical term, which currently is used to group three countries: Estonia, Latvia, and Lithuania. All three countries are members of NATO, the European Union, the Eurozone, ...
, the first countries that were part of the Soviet Union to join NATO.[ Russian troops had been stationed in Baltic states as late as 1995,][ but the goals of European integration and NATO membership were very attractive for the Baltic states.][ Rapid investments in their own armed forces showed a seriousness in their desire for membership, and participation in NATO-led post-9/11 operations, particularly by Estonia in Afghanistan, won the three countries key support from individuals like US Senator ]John McCain
John Sidney McCain III (August 29, 1936 – August 25, 2018) was an American politician and United States Navy officer who served as a United States senator from Arizona from 1987 until his death in 2018. He previously served two terms ...
, French President Jacques Chirac
Jacques René Chirac (, , ; 29 November 193226 September 2019) was a French politician who served as President of France from 1995 to 2007. Chirac was previously Prime Minister of France from 1974 to 1976 and from 1986 to 1988, as well as Ma ...
, and German Chancellor Gerhard Schröder
Gerhard Fritz Kurt "Gerd" Schröder (; born 7 April 1944) is a German lobbyist and former politician, who served as the chancellor of Germany from 1998 to 2005. From 1999 to 2004, he was also the Leader of the Social Democratic Party of Germany ...
.[ A 2006 study in the journal '']Security Studies
__NOTOC__
Security studies, also known as international security studies, is an academic sub-field within the wider discipline of international relations that studies organized violence, military conflict, national security, and international s ...
'' argued that the NATO enlargements in 1999 and 2004 contributed to democratic consolidation in Central and Eastern Europe.[
]
Adriatic Charter
Croatia also started a Membership Action Plan at the 2002 summit, but was not included in the 2004 enlargement. In May 2003, it joined with Albania
Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and share ...
and Macedonia to form the Adriatic Charter. Croatia's prospect of membership sparked a national debate on whether a referendum on NATO membership needed to be held before joining the organization. Croatian Prime Minister Ivo Sanader
Ivo Sanader (born 8 June 1953) is a former Croatian politician who served as Prime Minister of Croatia from 2003 to 2009.
He is to date the second longest-serving prime minister since independence, holding the office for over five and a half yea ...
ultimately agreed in January 2008, as part of forming a coalition government with the HSS and HSLS parties, not to officially propose one.[ Albania and Croatia were invited to join NATO at the ]2008 Bucharest summit
The 2008 Bucharest Summit or the 20th NATO Summit was a NATO summit organized in the Palace of the Parliament, Bucharest, Romania on 2 – 4 April 2008. that April, though Slovenia threatened to hold up Croatian membership over their border dispute in the Bay of Piran
The Gulf of Piran or Piran Bay ( sl, Piranski zaliv, hr, Piranski zaljev, it, Baia di Pirano) is located in the northern part of the Adriatic Sea, and is a part of the southernmost tip of the Gulf of Trieste.
Overview
It was named after the to ...
.[ Slovenia did ratify Croatia's accession protocol in February 2009,][ before Croatia and Albania both officially joined NATO just before the 2009 Strasbourg–Kehl summit, with little opposition from Russia.][
]Montenegro
)
, image_map = Europe-Montenegro.svg
, map_caption =
, image_map2 =
, capital = Podgorica
, coordinates =
, largest_city = capital
, official_languages = ...
declared independence on 3 June 2006; the new country subsequently joined the Partnership for Peace program at the 2006 Riga summit
The 2006 Riga summit or the 19th NATO Summit was a NATO summit held in the Olympic Sports Centre, Riga, Latvia from 28 to 29 November 2006. The most important topics discussed were the War in Afghanistan and the future role and borders of the ...
and then applied for a Membership Action Plan on 5 November 2008,[ which was granted in December 2009.][ Montenegro also began full membership with the Adriatic Charter of NATO aspirants in May 2009.][ NATO formally invited Montenegro to join the alliance on 2 December 2015,][ with negotiations concluding in May 2016;][ Montenegro joined NATO on 5 June 2017.][
]North Macedonia
North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Socialist Feder ...
joined the Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
in 1995, and commenced its Membership Action Plan in 1999, at the same time as Albania
Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and share ...
. At the 2008 Bucharest summit
The 2008 Bucharest Summit or the 20th NATO Summit was a NATO summit organized in the Palace of the Parliament, Bucharest, Romania on 2 – 4 April 2008. , Greece
Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders wi ...
blocked a proposed invitation because it believed that its neighbor's constitutional name implies territorial aspirations toward its own region of Greek Macedonia
Macedonia (; el, Μακεδονία, Makedonía ) is a geographic and former administrative region of Greece, in the southern Balkans. Macedonia is the largest and Greek geographic region, with a population of 2.36 million in 2020. It is ...
. NATO nations agreed that the country would receive an invitation upon resolution of the Macedonia naming dispute
The use of the country name "Macedonia (terminology), Macedonia" was disputed between Greece and the North Macedonia, Republic of Macedonia (now North Macedonia) between 1991 and 2019. The dispute was a source of instability in the Balkans#W ...
.[ Macedonia sued Greece at the ]International Court of Justice
The International Court of Justice (ICJ; french: Cour internationale de justice, links=no; ), sometimes known as the World Court, is one of the six principal organs of the United Nations (UN). It settles disputes between states in accordanc ...
(ICJ) over their veto of Macedonia's NATO membership. Macedonia was part of the Vilnius Group
The Vilnius Group was an organization of NATO aspirant countries, created in May 2000, aimed at practical cooperation, exchange of information and lobbying for their candidacy in the NATO capitals.
As motto of the Vilnius group was chosen:
:''Wh ...
, and had formed the Adriatic Charter with Croatia and Albania in 2003 to better coordinate NATO accession.
In June 2017, Macedonian Prime Minister Zoran Zaev
Zoran Zaev ( mk, Зоран Заев, ; born 8 October 1974) is a Macedonian economist and politician who served as prime minister of North Macedonia from May 2017 to January 2020, and again from August 2020 to January 2022.
Prior to entering ...
signaled he would consider alternatives names for the country in order to strike a compromise with Greece, settle the naming dispute and lift Greek objections to Macedonia joining the alliance. The naming dispute was resolved with the Prespa Agreement
The Prespa agreement,; In mk, Договорот од Преспа, translit=Dogovorot od Prespa or Преспански договор, ''Prespanski dogovor'' also known as the Treaty of Prespa, the Prespes deal or the Prespa accord, is an agre ...
in June 2018 under which the country adopted the name North Macedonia, which was supported by a referendum in September 2018. NATO invited North Macedonia to begin membership talks on 11 July 2018;[ formal accession talks began on 18 October 2018.][ NATO's members signed North Macedonia's accession protocol on 6 February 2019.][ Most countries ratified the accession treaty in 2019, with ]Spain
, image_flag = Bandera de España.svg
, image_coat = Escudo de España (mazonado).svg
, national_motto = '' Plus ultra'' (Latin)(English: "Further Beyond")
, national_anthem = (English: "Royal March")
, ...
ratifying its accession protocol in March 2020.[ The ]Sobranie
Sobranie (russian: Собрание, "Gathering", "Collection", "Assembly") is a brand of cigarettes, currently owned and manufactured by Gallaher Group, a subsidiary of Japan Tobacco.
History
The Balkan Sobranie tobacco business was establ ...
also ratified the treaty unanimously on 11 February 2020,[ before North Macedonia became a NATO member state on 27 March 2020.][
]
Criteria and process
Article 10 and the Open Door Policy
The North Atlantic Treaty
The North Atlantic Treaty, also referred to as the Washington Treaty, is the treaty that forms the legal basis of, and is implemented by, the North Atlantic Treaty Organization (NATO). The treaty was signed in Washington, D.C., on 4 April 194 ...
is the basis of the organization, and, as such, any changes including new membership requires ratification by all current signers of the treaty. The treaty's Article 10 describes how non-member states may join NATO
The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two N ...
:
Article 10 poses two general limits to non-member states. First, only European states are eligible for new membership, and second, these states not only need the approval of all the existing member states, but every member state can put some criteria forward that have to be attained. In practice, NATO formulates a common set of criteria, but for instance Greece
Greece,, or , romanized: ', officially the Hellenic Republic, is a country in Southeast Europe. It is situated on the southern tip of the Balkans, and is located at the crossroads of Europe, Asia, and Africa. Greece shares land borders wi ...
blocked the Republic of Macedonia's accession to NATO for many years due to the disagreement over the use of the name Macedonia. Turkey similarly opposes the participation of the Republic of Cyprus
Cyprus ; tr, Kıbrıs (), officially the Republic of Cyprus,, , lit: Republic of Cyprus is an island country located south of the Anatolian Peninsula in the eastern Mediterranean Sea. Its continental position is disputed; while it is geo ...
with NATO institutions as long as the Cyprus dispute
The Cyprus problem, also known as the Cyprus dispute, Cyprus issue, Cyprus question or Cyprus conflict, is an ongoing dispute between Greek Cypriots in the south and Turkish Cypriots in the north. Initially, with the Modern history of Cyprus#In ...
is not resolved.[
Since the ]1991 Rome summit
The 1991 Rome summit was the 12th NATO summit bringing the leaders of member nations together at the same time. The formal sessions and informal meetings in Rome, Italy took place on 7–8 November 1991. , when the delegations of its member states officially offered cooperation with Europe's newly democratic states, NATO has addressed and further defined the expectations and procedure for adding new members. The 1994 Brussels Declaration reaffirmed the principles in Article 10 and led to the "Study on NATO Enlargement". Published in September 1995, the study outlined the "how and why" of possible enlargement in Europe,[ highlighting three principles from the 1949 treaty for members to have: "democracy, individual liberty, and rule of law".
As NATO Secretary General ]Willy Claes
Willem Werner Hubert "Willy" Claes (; born 24 November 1938) is a Belgian politician who served as the eighth Secretary General of NATO, from 1994 to 1995. Claes was forced to resign from his NATO position after he was found guilty of corruptio ...
noted, the 1995 study did not specify the "who or when,"[ though it discussed how the then newly formed ]Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
and North Atlantic Cooperation Council
The Euro-Atlantic Partnership Council (EAPC) is a post–Cold War, North Atlantic Treaty Organization (NATO) institution. The EAPC is a multilateral forum created to improve relations between NATO and non-NATO countries in Europe and Central Asi ...
could assist in the enlargement process, and noted that on-going territorial disputes could be an issue for whether a country was invited.[ At the 1997 Madrid summit, the heads of state of NATO issued the "Madrid Declaration on Euro-Atlantic Security and Cooperation" which invited three ]Central Europe
Central Europe is an area of Europe between Western Europe and Eastern Europe, based on a common historical, social and cultural identity. The Thirty Years' War (1618–1648) between Catholicism and Protestantism significantly shaped the area' ...
an countries to join the alliance, out of the twelve that had at that point requested to join, laying out a path for others to follow.[ The text of Article 10 was the origin for the April 1999 statement of a "]NATO open door policy In the context of the enlargement of NATO, Article 10 of the North Atlantic Treaty is the origin for the April 1999 statement of a "NATO open door policy".
History
Following the Eastern European Revolutions in the autumn of 1989, countries from t ...
".[
]
Membership Action Plan
The biggest step in the formalization of the process for inviting new members came at the 1999 Washington summit when the Membership Action Plan (MAP) mechanism was approved as a stage for the current members to regularly review the formal applications of aspiring members. A country's participation in MAP entails the annual presentation of reports concerning its progress on five different measures:[
* Willingness to settle international, ethnic or external territorial disputes by peaceful means, commitment to the rule of law and human rights, and democratic control of armed forces
* Ability to contribute to the organization's defense and missions
* Devotion of sufficient resources to armed forces to be able to meet the commitments of membership
* Security of sensitive information, and safeguards ensuring it
* Compatibility of domestic legislation with NATO cooperation
NATO provides feedback as well as technical advice to each country and evaluates its progress on an individual basis.][ Once members agree that a country meets the requirements, NATO can issue that country an invitation to begin accession talks.][ The final accession process, once invited, involves five steps leading up to the signing of the accession protocols and the acceptance and ratification of those protocols by the governments of the current NATO members.][
In November 2002, NATO invited seven countries to join it via the MAP: Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia and Slovenia.][ All seven invitees joined in March 2004, which was observed at a flag-raising ceremony on 2 April. After that date, NATO numbered 26 allies.][ Other former MAP participants were ]Albania
Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e Shqipërisë), is a country in Southeastern Europe. It is located on the Adriatic and Ionian Seas within the Mediterranean Sea and shares ...
and Croatia
, image_flag = Flag of Croatia.svg
, image_coat = Coat of arms of Croatia.svg
, anthem = "Lijepa naša domovino"("Our Beautiful Homeland")
, image_map =
, map_caption =
, capit ...
between May 2002 and April 2009, Montenegro
)
, image_map = Europe-Montenegro.svg
, map_caption =
, image_map2 =
, capital = Podgorica
, coordinates =
, largest_city = capital
, official_languages = M ...
between December 2009 and June 2017 and North Macedonia
North Macedonia, ; sq, Maqedonia e Veriut, (Macedonia before February 2019), officially the Republic of North Macedonia,, is a country in Southeast Europe. It gained independence in 1991 as one of the successor states of Socialist Feder ...
between April 1999 and March 2020, when they joined NATO. , there was only one country participating in a MAP, Bosnia and Herzegovina
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and ...
.[
]
Intensified Dialogue
Intensified Dialogue was first introduced in April 2005 at an informal meeting of foreign ministers in Vilnius, Lithuania, as a response to Ukrainian aspirations for NATO membership and related reforms taking place under President Viktor Yushchenko
Viktor Andriyovych Yushchenko ( uk, Віктор Андрійович Ющенко, ; born 23 February 1954) is a Ukrainian politician who was the third president of Ukraine from 23 January 2005 to 25 February 2010.
As an informal leader of th ...
, and which followed the 2002 signing of the NATO–Ukraine Action Plan under his predecessor, Leonid Kuchma
Leonid Danylovych Kuchma ( uk, Леоні́д Дани́лович Ку́чма; born 9 August 1938) is a Ukrainian politician who was the second president of Ukraine from 19 July 1994 to 23 January 2005. Kuchma's presidency saw numerous corrup ...
.[ This formula, which includes discussion of a "full range of political, military, financial and security issues relating to possible NATO membership ... had its roots in the 1997 Madrid summit", where the participants had agreed "to continue the Alliance's intensified dialogs with those nations that aspire to NATO membership or that otherwise wish to pursue a dialog with NATO on membership questions".][
In September 2006, ]Georgia
Georgia most commonly refers to:
* Georgia (country), a country in the Caucasus region of Eurasia
* Georgia (U.S. state), a state in the Southeast United States
Georgia may also refer to:
Places
Historical states and entities
* Related to the ...
became the second to be offered the Intensified Dialogue status, following a rapid change in foreign policy under President Mikhail Saakashvili,[ and what they perceived as a demonstration of military readiness during the ]2006 Kodori crisis
The 2006 Kodori crisis erupted in late July 2006 in Abkhazia's Kodori Gorge, when a local militia leader declared his opposition to the Government of Georgia, which sent police forces to disarm the rebels. The upper part of the Kodori Gorge was a ...
.[ ]Montenegro
)
, image_map = Europe-Montenegro.svg
, map_caption =
, image_map2 =
, capital = Podgorica
, coordinates =
, largest_city = capital
, official_languages = ...
, Bosnia and Herzegovina
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and ...
, and Serbia
Serbia (, ; Serbian: , , ), officially the Republic of Serbia ( Serbian: , , ), is a landlocked country in Southeastern and Central Europe, situated at the crossroads of the Pannonian Basin and the Balkans. It shares land borders with Hu ...
similarly received offers at the April 2008 Bucharest summit
The 2008 Bucharest Summit or the 20th NATO Summit was a NATO summit organized in the Palace of the Parliament, Bucharest, Romania on 2 – 4 April 2008. .[ While their neighbors both requested and accepted the dialog program, Serbia's offer was presented to guarantee the possibility of future ties with the alliance.][
]
Current status
Bosnia and Herzegovina is the only country with a Membership Action Plan, which together with Georgia, were named NATO "aspirant countries" at the North Atlantic Council meeting on 7 December 2011.[ Ukraine was recognized as an aspirant country after the ]2014 Ukrainian revolution
The Revolution of Dignity ( uk, Революція гідності, translit=Revoliutsiia hidnosti) also known as the Maidan Revolution or the Ukrainian Revolution, . In 2022, NATO signed protocols with Sweden and Finland on their accession following the Russian invasion of Ukraine
On 24 February 2022, in a major escalation of the Russo-Ukrainian War, which began in 2014. The invasion has resulted in tens of thousands of deaths on both sides. It has caused Europe's largest refugee crisis since World War II. An ...
.
See the sub-sections below for the current status of each country.
Bosnia and Herzegovina
The 1995 NATO bombing of Bosnia and Herzegovina targeted the Bosnian Serb Army
The Army of Republika Srpska ( sr, Војска Републике Српске/Vojska Republike Srpske; ВРС/VRS), commonly referred to in English as the Bosnian Serb Army, was the military of Republika Srpska (RS), the self-proclaimed Serb ...
and together with international pressure led to the resolution of the Bosnian War
The Bosnian War ( sh, Rat u Bosni i Hercegovini / Рат у Босни и Херцеговини) was an international armed conflict that took place in Bosnia and Herzegovina between 1992 and 1995. The war is commonly seen as having started ...
and the signing of the Dayton Agreement
The General Framework Agreement for Peace in Bosnia and Herzegovina, also known as the Dayton Agreement or the Dayton Accords ( Croatian: ''Daytonski sporazum'', Serbian and Bosnian: ''Dejtonski mirovni sporazum'' / Дејтонски мир ...
in 1995. Since then, NATO has led the Implementation Force and Stabilisation Force in Bosnia and Herzegovina, Stabilization Force, and other peacekeeping efforts in the country. Bosnia and Herzegovina joined the Partnership for Peace in 2006, and signed an agreement on security cooperation in March 2007.[ Bosnia and Herzegovina began further cooperation with NATO within their Individual Partnership Action Plan in January 2008.][ The country then started the process of Intensified Dialogue at the ]2008 Bucharest summit
The 2008 Bucharest Summit or the 20th NATO Summit was a NATO summit organized in the Palace of the Parliament, Bucharest, Romania on 2 – 4 April 2008. .[ The country was invited to join the Adriatic Charter of NATO aspirants in September 2008.][
The Federation of Bosnia and Herzegovina within ]Bosnia and Herzegovina
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and ...
has expressed willingness to join NATO, however, it faces consistent political pressure from Republika Srpska, the other political entity in the country, alongside its partners in Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
. On 2 October 2009, Haris Silajdžić, the Bosniak Member of the Presidency, announced official application for Membership Action Plan. On 22 April 2010, NATO agreed to launch the Membership Action Plan for Bosnia and Herzegovina, but with certain conditions attached.[ Turkey is thought to be the biggest supporter of Bosnian membership, and heavily influenced the decision.][
The conditions of the MAP, however, stipulated that no Annual National Programme could be launched until 63 military facilities are transferred from Political divisions of Bosnia and Herzegovina, Bosnia's political divisions to the central government, which is one of the conditions for the High Representative for Bosnia and Herzegovina#Conditions for closure of the Office of the High Representative, OHR closure.][ The leadership of the Republika Srpska has opposed this transfer as a loss of autonomy.][ All movable property, including all weapons and other army equipment, is fully registered as the property of the country starting 1 January 2006.][ A ruling of the Constitutional Court of Bosnia and Herzegovina on 6 August 2017 decided that a disputed military facility in Han Pijesak is to be registered as property of Bosnia and Herzegovina.][ Despite the fact that all immovable property is not fully registered, NATO approved the activation of the Membership Action Plan for Bosnia and Herzegovina, and called on Bosnia to submit an Annual National Programme on 5 December 2018.][
A February 2017 poll showed that 59% of the country supports NATO membership, but results were very divided depending on ethnic groups. While 84% of those who identified as Bosniak or Croat supported NATO membership, only 9% of those who identified as Serb did.][ Bosnian chances of joining NATO may depend on Serbia's attitude towards the alliance, since the leadership of Republika Srpska might be reluctant to go against Serbian interests.][ In October 2017, the National Assembly (Republika Srpska), National Assembly of the Republika Srpska passed a nonbinding resolution opposing NATO membership for Bosnia and Herzegovina.][ On 2 March 2022, Vjosa Osmani, the President of Kosovo, called on NATO to speed up the membership process for Kosovo and Bosnia and Herzegovina. Osmani also criticized Aleksandar Vučić, the President of Serbia, accusing him of using Milorad Dodik to "destroy the unity of Bosnia and Herzegovina".][
]
Finland and Sweden
The 2022 Russian invasion of Ukraine led to Finland and Sweden applying for membership on 18 May 2022.[ The move met opposition from Turkey, which called for the Nordic countries to lift their non-existing arms sales ban on Turkey and to stop any support for groups which Turkey and others have labeled as terrorists, including the Kurdish militant groups Kurdistan Workers' Party (PKK) (that Sweden banned in 1984) and Kurdistan Communities Union (KCK) and Democratic Union Party (Syria) (PYD) and People's Defense Units (YPG), as well as the followers of Fethullah Gülen, a US-based cleric accused by Turkey of orchestrating the failed 2016 Turkish coup d'état attempt.][ NATO leadership and the United States have said they were confident Turkey would not hold up the two countries' accession process. Additionally, Canadian Foreign Minister Mélanie Joly also held talks with Turkey to convince the Turkish government of the need for the two Nordic nations' integration.][
At the 2022 Madrid summit in June 2022, Turkey agreed to support the membership bids of Finland and Sweden,][ leading to NATO immediately inviting both countries to join the organization without going through the Membership Action Plan process.][ The ]ratification
Ratification is a principal's approval of an act of its agent that lacked the authority to bind the principal legally. Ratification defines the international act in which a state indicates its consent to be bound to a treaty if the parties inten ...
process for Sweden and Finland began on 5 July 2022.[ , all NATO member states except for Hungary and Turkey have approved the accession of the two countries and deposited their instruments of accession with the Government of the US.][
]
Finland
For much of the Cold War, Finland
Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bot ...
's relationship with NATO and the Soviet Union followed the Paasikivi–Kekkonen doctrine, where the country joined neither the Western nor Eastern blocs, and limited its military activities. Since the 1990s and across multiple governments, the Finnish position was that joining NATO was unnecessary and it was preferable to retain an independent defence policy.[ Finland joined the ]Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
in 1994, and has provided peacekeeping forces to both NATO's Kosovo and Afghanistan missions in the early 2000s.[ Finland has regularly purchased military equipment from members of the alliance, including F-18 Hornet and F-35 Lightning II aircraft, and newly-procured local equipment is required to follow NATO international standards.][ During the 2006 Finnish presidential election, Finnish presidential election of 2006, the possibility of Finland's membership in NATO was one of the most important issues, and has continued to be a significant issue in Finnish politics.][ In 2007, Finland made various technical preparations for membership, with the then Defence Minister Jyri Häkämies eager to pursue NATO membership.][
In response to these internal Finnish debates, Russian representatives have expressed their country's opposition to the possibility of Finland joining NATO on numerous occasions.][ Following the 2008 Russo-Georgian War, Prime Minister of Finland, Finnish Prime Minister Matti Vanhanen reiterated that Finland had no plans to join NATO, and stated that the main lesson of the war was instead the need for closer ties to Russia.][ A British study in 2009 suggested that Russia could retaliate against Europe as a whole if Finland were to join NATO.][ In a June 2014 interview in the Finnish newspaper ''Hufvudstadsbladet'', Vladimir Putin's personal envoy Sergey Alexandrovich Markov accused Finland of extreme "Russophobia" and suggested that Finland joining NATO could start World War III.][
]
The prospect of a full Russian invasion of Ukraine in 2022, however, led Prime Minister Sanna Marin to say in January 2022 that Finland reserved the option of applying NATO membership if it chooses to do so, but that it was "very unlikely" it would happen during her term as Prime Minister.[ After Russo-Ukrainian War, Russia did invade Ukraine, she reiterated that while Finland was "not currently facing an immediate military threat," joining NATO was still a possibility, noting that "the debate on NATO membership in Finland will change."][ On 25 February, a Russian Foreign Ministry spokesperson threatened ]Finland
Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bot ...
and Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic countries, Nordic c ...
with "military and political consequences" if they attempted to join NATO. Both countries had attended the emergency NATO summit as members of NATO's Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
and both had condemned the invasion and had provided assistance to Ukraine.[ Marin attended other meetings in the following weeks, including ones with Swedish leaders regarding coordinating their decisions on NATO, which she suggested would be concluded in a matter of "weeks, not months".][ In March 2022, opinion polling showed a clear majority of Finns supported joining NATO after the invasion.][
By April 2022, accession became a larger priority for Marin's government,][ and on 13 April, the Ministry for Foreign Affairs (Finland), Ministry for Foreign Affairs produced a report on the international security landscape and on the foreign and defense policy options available to Finland, which formed the basis of the debate on NATO membership over the next month.][ On 15 May, President Niinistö announced at a joint press conference with Prime Minister Marin that Finland would indeed apply for NATO membership.][ On 17 May, the Parliament of Finland voted 188–8 in favor of joining NATO,][ and a formal application was submitted for NATO membership on 18 May 2022.][ As with neighboring Sweden, the application was at least initially opposed by ]Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
, which accused the two countries of supporting Kurds, Kurdish groups Kurdistan Workers' Party, PKK, Democratic Union Party (Syria), PYD and People's Defense Units, YPG that Turkey views as terrorists,[ as well as the followers of Fethullah Gülen, whom Turkey was accused of orchestrating the alleged unsuccessful 2016 Turkish coup d'état attempt.][ Turkey later agreed, on , to support Finland's membership bid.][
]
Sweden
In 1949, Sweden
Sweden, formally the Kingdom of Sweden,The United Nations Group of Experts on Geographical Names states that the country's formal name is the Kingdom of SwedenUNGEGN World Geographical Names, Sweden./ref> is a Nordic countries, Nordic c ...
chose not to join NATO and declared a security policy aiming for Swedish neutrality, non-alignment in peace and neutrality in war. A modified version now qualifies non-alignment in peace for possible neutrality in war. This position was maintained without much discussion during the Cold War. Since the 1990s, however, there has been an active debate in Sweden on the question of NATO membership in the post–Cold War era. These ideological divides were visible in November 2006 when Sweden could either buy two new transport planes or join NATO's plane pool, and in December 2006, when Sweden was invited to join the NATO Response Force.[ Sweden has been an active participant in NATO-led missions in Bosnia (Implementation Force, IFOR and Stabilisation Force in Bosnia and Herzegovina, SFOR), Kosovo (Kosovo Force, KFOR), Afghanistan (International Security Assistance Force, ISAF), and Libya (Operation Unified Protector).][
Russo-Ukrainian War, Russia's military actions in Ukraine, first in 2014 and later in 2022, have caused most major political parties in Sweden to at least re-evaluate their positions on NATO membership, and many moved to support Swedish membership. The Centre Party (Sweden), Centre Party, for example, was officially opposed to NATO membership until September 2015, when party leadership under Annie Lööf announced that they would motion to change the party policy to push for Sweden to join NATO at their next party conference. The Christian Democrats (Sweden), Christian Democrats likewise voted to support NATO membership at their October 2015 party meeting.][ The center-right Moderate Party and center-left Liberals (Sweden), Liberal Party have both generally supported NATO membership since the end of the Cold War, with the Moderates even making it their top election pledge in 2022.][ When the Euroscepticism#Sweden, eurosceptic nationalist Sweden Democrats adjusted their stance in December 2020 to allow for NATO membership if coordinated with neighboring ]Finland
Finland ( fi, Suomi ; sv, Finland ), officially the Republic of Finland (; ), is a Nordic country in Northern Europe. It shares land borders with Sweden to the northwest, Norway to the north, and Russia to the east, with the Gulf of Bot ...
, a majority of the members of the Swedish Riksdag for the first time belonged to parties that were open to NATO membership,[ and a motion to allow for future NATO membership passed the parliament that month by 204 votes to 145.][
Support for NATO membership over this period steadily increased, with polling by the SOM Institute showing it growing from 17% to 31% between 2012 and 2015.][ Events like the Annexation of Crimea by the Russian Federation, annexation of Crimea and reports of Swedish submarine incidents#After the cold war, Russian submarine activity in 2014, as well as a 2013 report that Sweden could hold out for only a week if attacked, were credited with that rise in support.][ A May 2017 poll by Pew Research Center, Pew also showed that 48% supported membership, and in November 2020, they showed that 65% of Swedes viewed NATO positively, the highest percent of any non-NATO member polled.][ A Novus poll conducted in late February 2022 found 41% in favor of NATO membership and 35% opposed.][ On 4 March 2022, a poll was released that showed 51% support NATO membership, the first time a poll has shown a majority supporting this position.][
The ruling Swedish Swedish Social Democratic Party, Social Democratic Party, however, had remained in favor of neutrality and non-alignment for many years,][ but following Russia's 2022 invasion of Ukraine, the party debated the issue internally in April 2022,][ and announced on 15 May 2022 that they would now support an application to join the organization.][ Of their coalition partners, the Green Party (Sweden), Green Party remain opposed,][ while the Left Party (Sweden), Left Party would like to hold a referendum on the subject, something Prime Minister of Sweden, Prime Minister Magdalena Andersson has rejected.][ Andersson announced Sweden would indeed apply for NATO membership on 16 May 2022, in coordination with neighboring Finland,][ and a formal application was submitted on 18 May 2022,][ despite Russian threats of "military and political consequences."][ As with neighboring Finland, the application was at least initially opposed by ]Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
, which accused the two countries of supporting Kurds, Kurdish groups Kurdistan Workers' Party, PKK, Democratic Union Party (Syria), PYD and People's Defense Units, YPG that Turkey views as terrorists,[ as well as the followers of Fethullah Gülen, whom Turkey was accused of orchestrating the alleged unsuccessful 2016 Turkish coup d'état attempt.][ On 20 May, Swedish Minister of Foreign Affairs Ann Linde pushed back against Erdoğan's claim they support PKK, calling it "disinformation", and pointing out Sweden listed PKK as a terrorist organization in 1984, while the EU followed suit in 2002.][ Turkey later agreed, on , to support Sweden's membership bid.][
]
Georgia
Georgia
Georgia most commonly refers to:
* Georgia (country), a country in the Caucasus region of Eurasia
* Georgia (U.S. state), a state in the Southeast United States
Georgia may also refer to:
Places
Historical states and entities
* Related to the ...
moved quickly following the Rose Revolution in 2003 to seek closer ties with NATO (although the previous administration had also indicated that they desired NATO membership a year before the revolution took place). Georgia's northern neighbor, Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
, opposed the closer ties, including those expressed at the 2008 Bucharest summit
The 2008 Bucharest Summit or the 20th NATO Summit was a NATO summit organized in the Palace of the Parliament, Bucharest, Romania on 2 – 4 April 2008. where NATO members promised that Georgia would eventually join the organization.[ Complications in the relationship between NATO and Georgia includes the presence of Russian military forces in internationally recognized Georgian territory as a result of multiple recent conflicts, like the 2008 Russo-Georgian War over the territories of Abkhazia and South Ossetia, both of which are home to a large number of citizens of the Russian Federation. On 21 November 2011, President of Russia, Russian President Dmitry Medvedev while addressing soldiers in Vladikavkaz near the Georgian border stated that Russia's 2008 invasion had prevented any further NATO enlargement into the former Soviet Union, Soviet sphere.][
A 2008 Georgian referendum, nonbinding referendum in 2008 resulted in 77 percent of voters supporting NATO accession.][ In May 2013, Prime Minister of Georgia, Georgian Prime Minister Bidzina Ivanishvili stated that his goal was to get a Membership Action Plan (MAP) for his country from NATO in 2014.][ In June 2014, diplomats from NATO suggested that while a MAP was unlikely, a package of "reinforced cooperation" agreements was a possible compromise.][ Anders Fogh Rasmussen confirmed that this could include the building of military capabilities and armed forces training.][
In September 2019, Russian Foreign Minister Sergey Lavrov said that "NATO approaching our borders is a threat to Russia."][ He was quoted as saying that if ]NATO
The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two N ...
accepts Georgian membership with the article on collective defense covering only Tbilisi-administered territory (i.e., excluding the Georgian territories of Abkhazia and South Ossetia, both of which are currently an List of states with limited recognition, unrecognized breakaway republics supported by Russia), "we will not start a war, but such conduct will undermine our relations with NATO and with countries who are eager to enter the alliance."[
On 29 September 2020, NATO Secretary General Jens Stoltenberg called on Georgia to use every opportunity to move closer to the Alliance and speed up preparations for membership. Stoltenberg stressed that earlier that year, the Allies agreed to further strengthen the NATO-Georgia partnership, and that NATO welcomed the progress made by Georgia in carrying out reforms, modernizing its armed forces and strengthening democracy.][ Georgian President Salome Zourabichvili, who took office in 2018, has conceded that NATO membership might not be possible while Russia occupies Georgian territory, and has sought to focus on European Union membership,][ which Georgia–European Union relations, Georgia submitted its application for in May 2022.][
]
Ukraine
Ukraine
Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inva ...
's present and future relationship with NATO has been politically divisive, and is part of a larger debate between Ukraine's political and cultural ties to both the European Union and Russia. It established ties to the alliance with a NATO–Ukraine Action Plan on 22 November 2002,[ and joined NATO's ]Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
initiative in February 2005. Then in April 2005, Ukraine entered into the Intensified Dialogue program with NATO.[
In March 2008, under President of Ukraine, Ukrainian President ]Viktor Yushchenko
Viktor Andriyovych Yushchenko ( uk, Віктор Андрійович Ющенко, ; born 23 February 1954) is a Ukrainian politician who was the third president of Ukraine from 23 January 2005 to 25 February 2010.
As an informal leader of th ...
and Prime Minister of Ukraine, Prime Minister Yulia Tymoshenko, Ukraine sent an official letter of application for a Membership Action Plan (MAP), the first step in joining NATO. These leaders however guaranteed their opposition that membership in any military alliance would not pass without public approval in a referendum.[ This idea had gained support from a number of NATO leaders, particularly those in ]Central and Eastern Europe
Central and Eastern Europe is a term encompassing the countries in the Baltics, Central Europe, Eastern Europe and Southeast Europe (mostly the Balkans), usually meaning former communist states from the Eastern Bloc and Warsaw Pact in Europ ...
.[ Russian leaders like Prime Minister and President-Elect Dmitry Medvedev made clear their opposition to Ukraine membership, and leading up to the April ]2008 Bucharest summit
The 2008 Bucharest Summit or the 20th NATO Summit was a NATO summit organized in the Palace of the Parliament, Bucharest, Romania on 2 – 4 April 2008. their emissary actively lobbied against a Ukrainian MAP. After some debate among members at the summit, NATO Secretary General Jaap de Hoop Scheffer declared in a press conference that Ukraine, together with Georgia, would someday join NATO, but neither would begin Membership Action Plans. At this summit, Russian President Vladimir Putin
Vladimir Vladimirovich Putin; (born 7 October 1952) is a Russian politician and former intelligence officer who holds the office of president of Russia. Putin has served continuously as president or prime minister since 1999: as prime min ...
, in his last international speech before switching jobs with Medvedev, listed his grievances with NATO, and called Ukrainian membership "a direct threat" to his country.[
The 2010 Ukrainian presidential election, 2010 election returned Viktor Yanukovych to the presidency and marked a turnaround in Ukraine's relations with NATO. In February 2010, he stated that Ukraine's relations with NATO were currently "well-defined", and that there was "no question of Ukraine joining NATO". He said the issue of Ukrainian membership of NATO might "emerge at some point, but we will not see it in the immediate future".][ While visiting Brussels in March 2010, he further stated that there would be no change to Ukraine's status as a member of the alliance's outreach program.][ He later reiterated during a trip to Moscow that Ukraine would remain a "European, non-aligned state".][ Then, on 3 June 2010 the Verkhovna Rada, Ukrainian parliament voted to exclude the goal of "integration into Euro-Atlantic security and NATO membership" from the country's national security strategy in a bill drafted by Yanukovych himself.][ The bill forbade Ukraine's membership in any military bloc, but allowed for co-operation with alliances such as NATO.][
]
Following months of Euromaidan street protests that began because of his refusal to sign an Ukraine–European Union Association Agreement, Association Agreement with the European Union in favor of deals from Russia, President Yanukovych fled Kyiv in February 2014, ultimately to Russia, and parliament voted to remove him from his post. This brought another change in direction of Ukraine's association with Europe and by extension NATO. In 2014, 2014 pro-Russian unrest in Ukraine, pro-Russian unrest occurred in eastern Ukraine and Crimea was Annexation of Crimea by the Russian Federation, annexed by the Russian Federation in March. As part of an effort to assuage concerned groups, newly installed Prime Minister Arseniy Yatsenyuk addressed the topic in a speech on 18 March 2014, emphasizing that Ukraine was not seeking NATO membership.[ US President Barack Obama echoed this position the following week, while calling for greater NATO presence in Central Europe.][
However, in response to the Russo-Ukrainian War, Russian military intervention in Ukraine,][ Yatsenyuk announced his intentions to resume the bid for NATO integration on 29 August 2014,][ and in December 2014, Ukraine's parliament voted to drop the non-aligned status that it adopted in 2010.][ Secretary General of NATO, NATO Secretary General Anders Fogh Rasmussen has stated that NATO membership is still an option for Ukraine,][ and support for NATO membership has risen to 64 percent in government-controlled Ukraine according to a July 2015 poll.][ Previous polls had shown that the decline in opposition to membership was linked to the ongoing Russian intervention.][
On 8 June 2017, Ukraine's Verkhovna Rada passed a law making integration with NATO a foreign policy priority,][ and Poroshenko announced the next month that he would seek the opening of negotiations on a Membership Action Plan with NATO,][ which recognized Ukraine as an aspirant country by March 2018.][ On 20 September 2018, the Ukrainian parliament approved amendments to the constitution that would make the accession of the country to NATO and the EU a central goal and the main foreign policy objective.][
On 8 October 2020, during a meeting with Prime Minister of the United Kingdom, Prime Minister Boris Johnson in London, President of Ukraine, President Volodymyr Zelenskyy stated that Ukraine needs a NATO Membership Action Plan (MAP), as NATO membership will contribute to Ukraine's security and defense.][ In April 2021, following a Russian troop buildup near the Ukraine border, Zelenskyy repeated this request in a call with NATO Secretary-General Jens Stoltenberg, saying that "NATO is the only way to end the war in Donbas" and that entry into the MAP "will be a real signal for Russia."][
Several weeks after the 2022 Russian invasion of Ukraine, former US Ambassador to NATO Ivo Daalder called for Ukraine to be offered membership, in a piece published in ''The Atlantic''.][ Since the invasion, calls for NATO membership for Ukraine have escalated across both Ukraine and NATO countries.
On 30 September 2022, Ukraine formally submitted an application for NATO membership. According to Politico, NATO members are reluctant to discuss Ukraine's entry into the alliance because they are aware of the Russian Federation's "hypersensitivity" to NATO expansion.
]
Membership debates
The Soviet Union was the primary ideological adversary for NATO during the Cold War. Following its dissolution, several states which maintained neutrality (international relations), neutrality during the Cold War or were post-Soviet states
The post-Soviet states, also known as the former Soviet Union (FSU), the former Soviet Republics and in Russia as the near abroad (russian: links=no, ближнее зарубежье, blizhneye zarubezhye), are the 15 sovereign states that wer ...
increased their ties with Western institutions, including a number of them requesting to join NATO. The 2022 Russian invasion of Ukraine reignited debate surrounding NATO membership in several countries.
Austria
Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...
, Ireland
Ireland ( ; ga, Éire ; Ulster-Scots: ) is an island in the North Atlantic Ocean, in north-western Europe. It is separated from Great Britain to its east by the North Channel, the Irish Sea, and St George's Channel. Ireland is the s ...
, Switzerland and Malta
Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...
have maintained their Cold War era neutrality. All are now members of the Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
, and all except Switzerland are now members of the European Union
The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...
.[ The defence ministry of Switzerland, which has a Swiss neutrality, long-standing policy of neutrality, initiated a report in May 2022 analyzing various military options, including increased cooperation and joint military exercises with NATO. That month, a poll indicated 33% of Swiss supported NATO membership for Switzerland, and 56% supported increased ties with NATO.][ Cyprus is also a member state of the European Union, but it is the only one that is neither a full member state nor participates in the Partnership for Peace. Any treaty concerning Cyprus' participation in NATO would likely be blocked by ]Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
because of the Cyprus dispute
The Cyprus problem, also known as the Cyprus dispute, Cyprus issue, Cyprus question or Cyprus conflict, is an ongoing dispute between Greek Cypriots in the south and Turkish Cypriots in the north. Initially, with the Modern history of Cyprus#In ...
.[
]Russia
Russia (, , ), or the Russian Federation, is a List of transcontinental countries, transcontinental country spanning Eastern Europe and North Asia, Northern Asia. It is the List of countries and dependencies by area, largest country in the ...
, Armenia, Belarus, and Kazakhstan are all members of the Collective Security Treaty Organization (CSTO), a post-Soviet alternative military alliance. Azerbaijan was a member of the CSTO but has committed to a policy of neutrality since 1999.[ In 2000, Russian President ]Vladimir Putin
Vladimir Vladimirovich Putin; (born 7 October 1952) is a Russian politician and former intelligence officer who holds the office of president of Russia. Putin has served continuously as president or prime minister since 1999: as prime min ...
floated the idea of Russia potentially joining NATO.[ However these prospects went nowhere and he began developing anti-NATO sentiment and openly holds hostile views towards NATO today.][ In 2009, Russian envoy Dmitry Rogozin did not rule out joining NATO at some point, but stated that Russia was currently more interested in leading a coalition as a great power.][
]
Austria
Austria
Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...
was Allied-occupied Austria, occupied by the four victorious Allies of World War II, Allied powers following World War II
World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
under the Allied Control Council, similar to Allied-occupied Germany, Germany. During negotiations to end of the occupation, which were ongoing at the same time as Germany's, the Soviet Union insisted on the reunified country adopting the model of Swiss neutrality. The US feared that this would encourage West Germany
West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 ...
to accept similar Stalin Note, Soviet proposals for neutrality as a condition for German reunification.[ Shortly after West Germany's accession to NATO, the parties agreed to the Austrian State Treaty in May 1955, which was largely based on the Moscow Memorandum signed the previous month between Austria and the Soviet Union. While the treaty itself did not commit Austria to neutrality, this was subsequently enshrined into Austria's constitution that October with the Declaration of Neutrality. The Declaration prohibits Austria from joining a military alliance, from hosting foreign military bases within its borders, and from participating in a war.][
Membership of Austria in the ]European Union
The European Union (EU) is a supranational political and economic union of member states that are located primarily in Europe. The union has a total area of and an estimated total population of about 447million. The EU has often been des ...
(or its predecessor organizations) was controversial due to the Austrian commitment to neutrality. Austria only joined in 1995 enlargement of the European Union, 1995, together with two Nordic countries that had also declared their neutrality in the Cold War (Sweden and Finland). Austria joined NATO's Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
in 1995, and participates in NATO's Euro-Atlantic Partnership Council
The Euro-Atlantic Partnership Council (EAPC) is a post–Cold War, North Atlantic Treaty Organization (NATO) institution. The EAPC is a multilateral forum created to improve relations between NATO and non-NATO countries in Europe and Central Asi ...
. The Military of Austria, Austrian military also participates in the United Nations Peacekeeping Operations, United Nations peacekeeping operations and has deployments in several countries , including Kosovo
Kosovo ( sq, Kosova or ; sr-Cyrl, Косово ), officially the Republic of Kosovo ( sq, Republika e Kosovës, links=no; sr, Република Косово, Republika Kosovo, links=no), is a international recognition of Kosovo, partiall ...
, Lebanon, and Bosnia and Herzegovina
Bosnia and Herzegovina ( sh, / , ), abbreviated BiH () or B&H, sometimes called Bosnia–Herzegovina and often known informally as Bosnia, is a country at the crossroads of south and southeast Europe, located in the Balkans. Bosnia and ...
, where it has led the Operation Althea, EUFOR mission there since 2009.[ Conservative politician Andreas Khol, the 2016 presidential nominee from the Austrian People's Party (ÖVP), has argued in favor of NATO membership for Austria in light of the 2022 Russian invasion of Ukraine,][ and Chancellor from 2000 to 2007, Wolfgang Schüssel, also of the ÖVP, supported NATO membership as part of European integration. Current Chancellor Karl Nehammer, however, has rejected the idea of reopening Austria's neutrality and membership is not widely popular with the Austrian public.][ According to a survey in May 2022 by the Austria Press Agency, only 14% of Austrians surveyed supported joining NATO, while 75% were opposed.][
]
Cyprus
Prior to gaining its independence in 1960, Cyprus was a crown colony of the United Kingdom and as such the UK's NATO membership also applied to British Cyprus. The Sovereign Base Areas of Akrotiri and Dhekelia in Cyprus remained under British control as a British Overseas Territory following independence.[ Neighbouring Greece–Turkey relations#Cyprus and the EU, Greece and Turkey competed for influence in the newly independent Cyprus, with intercommunal rivalries and movements for enosis, union with Greece or Taksim (politics), partition and partial union with Turkey. The first Presidents of Cyprus, President of the independent Republic of Cyprus (1960–1977), Archbishop of Cyprus Makarios III, adopted a policy of non-alignment and took part in the 1961 founding meeting of the Non-Aligned Movement in Belgrade.
The 1974 ]Turkish invasion of Cyprus
The Turkish invasion of Cyprus began on 20 July 1974 and progressed in two phases over the following month. Taking place upon a background of Cypriot intercommunal violence, intercommunal violence between Greek Cypriots, Greek and Turkish ...
and ongoing Cyprus dispute, dispute, in which Turkey continues to occupy Northern Cyprus, complicates Cyprus' relations with NATO. Any treaty concerning Cyprus' participation in NATO, either as a full member, PfP or Euro-Atlantic Partnership Council
The Euro-Atlantic Partnership Council (EAPC) is a post–Cold War, North Atlantic Treaty Organization (NATO) institution. The EAPC is a multilateral forum created to improve relations between NATO and non-NATO countries in Europe and Central Asi ...
, would likely be vetoed by Turkey
Turkey ( tr, Türkiye ), officially the Republic of Türkiye ( tr, Türkiye Cumhuriyeti, links=no ), is a list of transcontinental countries, transcontinental country located mainly on the Anatolia, Anatolian Peninsula in Western Asia, with ...
, a full member of NATO, until the dispute is resolved.[ NATO membership for a reunified Cyprus has been proposed as a solution to the question of security guarantees, given that all three of the current guarantors under the Treaty of Guarantee (1960) (Greece, Turkey and the United Kingdom) are already NATO members.][
The Parliament of Cyprus voted in February 2011 to apply for membership in the PfP program, but President of Cyprus, President Demetris Christofias vetoed the decision as it would hamper his attempts to negotiate an end to the Cyprus dispute and demilitarize the island.][ The winner of Cyprus' 2013 Cypriot presidential election, presidential election in February 2013, Nicos Anastasiades, has stated that he intends to apply for membership in the PfP program soon after taking over.][ The current foreign minister Nikos Christodoulides, Nicos Christodoulides has dismissed Cypriot membership of NATO or Partnership for Peace, preferring to keep Cyprus' Foreign relations of Cyprus, foreign and defence affairs within the framework of the European Union.][ In May 2022, Cyprus Defence Minister, Charalambos Petrides, confirmed that the country would not apply to NATO despite the ]Russian invasion of Ukraine
On 24 February 2022, in a major escalation of the Russo-Ukrainian War, which began in 2014. The invasion has resulted in tens of thousands of deaths on both sides. It has caused Europe's largest refugee crisis since World War II. An ...
.[
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Ireland
Ireland
Ireland ( ; ga, Éire ; Ulster-Scots: ) is an island in the North Atlantic Ocean, in north-western Europe. It is separated from Great Britain to its east by the North Channel, the Irish Sea, and St George's Channel. Ireland is the s ...
was Irish neutrality during World War II, neutral during World War II, though the country cooperated with Allied intelligence and permitted the Allies use of Irish airways and ports. Ireland continued their policy of Irish neutrality, military neutrality during the Cold War, and after it ended, joined NATO's Partnership for Peace
The Partnership for Peace (PfP; french: Partenariat pour la paix) is a North Atlantic Treaty Organization (NATO) program aimed at creating trust between the member states of NATO and other states mostly in Europe, including post-Soviet states; ...
(PfP) program and Euro-Atlantic Partnership Council
The Euro-Atlantic Partnership Council (EAPC) is a post–Cold War, North Atlantic Treaty Organization (NATO) institution. The EAPC is a multilateral forum created to improve relations between NATO and non-NATO countries in Europe and Central Asi ...
(EAPC) in 1999.[ Ireland participates in the alliance's PfP Planning and Review Process (PARP), which aims to increase the interoperability of the Irish military, the Defence Forces (Ireland), Defence Forces, with NATO member states and bring them into line with accepted international standards so as to successfully deploy with other professional military forces on peacekeeping operations overseas.][ Ireland supplied a small number of troops to the NATO-led International Security Assistance Force (ISAF) in Afghanistan (2001–2014) and supports the ongoing NATO-led Kosovo Force (KFOR).][ Former Secretary General of NATO Anders Fogh Rasmussen said during a visit to the country in 2013 that the "door is open" for Ireland to join NATO at any time.][
There are a number of politicians who do support Ireland joining NATO, mainly within the center-right Fine Gael party, but the majority of politicians still do not.][ The Irish republicanism, republican party Sinn Féin proposed a Amendments to the Constitution of Ireland, constitutional amendment to prohibit the country from joining a military alliance like NATO, but the legislation failed to pass the Dáil Éireann in April 2019.][ While Taoiseach Micheál Martin said in 2022 that Ireland would not need to hold a referendum in order to join NATO, Irish constitutional lawyers have pointed to the precedent set by the 1987 case ''Crotty v. An Taoiseach'' as suggesting it would be necessary, and that any attempt to join NATO without a referendum would likely be legally challenged in the country's courts in a similar way. Currently no major political party in Ireland fully supports accession to NATO, a reflection on public and media opinion in the country.][ A poll in early March 2022 found 37% in favor of joining NATO and 52% opposed,][ while one at the end of March 2022, found a sharp rise of approval with 48% supporting NATO membership and 39% opposing it.][ An August 2022 poll found 52% in favor of joining and 48% opposed.
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Kosovo
According to Ministry of Foreign Affairs (Kosovo), Minister of Foreign Affairs Enver Hoxhaj, integration with NATO is a priority for Kosovo
Kosovo ( sq, Kosova or ; sr-Cyrl, Косово ), officially the Republic of Kosovo ( sq, Republika e Kosovës, links=no; sr, Република Косово, Republika Kosovo, links=no), is a international recognition of Kosovo, partiall ...