Accession of Sweden to NATO

Accession of Sweden to NATO
Name	Accession of Sweden to NATO
Long name	Protocol to the North Atlantic Treaty on the Accession of the Kingdom of Sweden
Type	Accession treaty
Date drafted	5 July 2022
Date signed	5 July 2022
Location signed	Brussels
Date effective	7 March 2024
Condition effective	Ratification by all NATO members
Signatories	Allied Foreign Ministers
Parties	Sweden, Member states of NATO
Depositor	Government of the United States
Language	English, French
Wikisource	Protocol to the North Atlantic Treaty on the Accession of the Kingdom of Sweden

Accession of Sweden to NATO marked the formal entry of the Kingdom of Sweden into the North Atlantic Treaty Organization, fundamentally ending over two centuries of official non-alignment. The process was initiated in May 2022 following Russia's full-scale invasion of Ukraine, which dramatically shifted Swedish security policy. After a complex ratification process by all existing alliance members, Sweden became the 32nd member on 7 March 2024, significantly altering the strategic balance in the Baltic Sea region.

Background

For centuries, Swedish foreign policy was defined by a posture of non-alignment, a stance solidified after the Napoleonic Wars and maintained through both World War I and World War II. During the Cold War, this policy evolved into armed neutrality, positioning Sweden between the Western Bloc and the Eastern Bloc. The nation maintained a strong national defense while avoiding formal military alliances like NATO or the Warsaw Pact. The dissolution of the Soviet Union in 1991 led to a gradual reassessment, with Sweden joining the European Union in 1995 and becoming a member of the Partnership for Peace program. However, a decisive shift occurred following the Russian annexation of Crimea in 2014, which prompted deepened cooperation with Allied Command Operations and participation in NATO exercises like BALTOPS. The final catalyst was Vladimir Putin's 2022 Russian invasion of Ukraine, which generated overwhelming public and political support for seeking the security guarantees of Article 5 of the North Atlantic Treaty.

Application process

On 18 May 2022, Sweden, jointly with neighboring Finland, submitted its official application for NATO membership to Secretary General Jens Stoltenberg. The historic decision followed intense debates within the Riksdag and was announced by Prime Minister Magdalena Andersson of the Swedish Social Democratic Party. The application was swiftly welcomed at the Madrid summit in June 2022, where allies formally invited both nations to begin accession talks. A key hurdle was addressed through a trilateral memorandum signed with Turkey and Finland at the summit, where Sweden pledged to address Ankara's concerns regarding groups it viewed as terrorist, such as the Kurdistan Workers' Party. Negotiations were conducted under the auspices of the North Atlantic Council, leading to the signing of the accession protocols on 5 July 2022 in Brussels.

Ratification by NATO members

The accession process required the individual ratification by all thirty existing member states according to their national procedures, a process that became protracted. While countries like the United States, the United Kingdom, and Germany ratified swiftly, objections from Turkey and Hungary caused significant delays. Turkish President Recep Tayyip Erdoğan linked ratification to Sweden's implementation of the Madrid memorandum and its stance on Fethullah Gülen. Hungary's government, led by Viktor Orbán, initially cited grievances over Swedish criticism of its rule of law. After extensive diplomacy, including visits by Swedish Prime Minister Ulf Kristersson to Ankara and Budapest, the Turkish Grand National Assembly approved ratification in January 2024. The National Assembly of Hungary followed in February 2024, with President Katalin Novák depositing the final instrument of ratification, clearing the last obstacle.

Security implications

Sweden's membership profoundly enhances NATO's defensive posture in Northern Europe, particularly in the strategically vital Baltic Sea. The integration of Sweden's advanced military, including a modern air force with Saab JAS 39 Gripen fighters and a potent submarine fleet, strengthens the alliance's capabilities. It allows for seamless defense planning across the Nordic countries, creating a contiguous allied territory from the Arctic Ocean to the Baltic states. This complicates Russian military planning, especially regarding the defense of Kaliningrad Oblast and potential aggression in the Suwałki Gap. Sweden's accession, following that of Finland, effectively turns the Baltic into a "NATO lake," significantly bolstering the security of Estonia, Latvia, and Lithuania. The move also integrates Sweden into NATO's nuclear sharing policy and collective defense planning under Supreme Headquarters Allied Powers Europe.

Domestic political response

The decision to apply for membership represented a seismic shift in Swedish politics, uniting a historically divided political spectrum. The center-right Moderate Party, the Liberals, and the Christian Democrats had long advocated for NATO membership, while the Swedish Social Democratic Party traditionally opposed it. Under leader Magdalena Andersson, the Social Democrats reversed their long-standing policy in 2022, securing a decisive parliamentary majority for the application. Opposition came primarily from the Left Party and the Green Party, who argued it would increase tension and abandon Sweden's peacekeeping identity. Public opinion, tracked by pollsters like Novus, swung dramatically from minority to overwhelming support following the invasion of Ukraine. The Swedish Armed Forces and defense establishment, including the Swedish Defence University, strongly supported the move as necessary for national security.

Timeline of accession

Key milestones in the process include the joint application with Finland on 18 May 2022. The invitation to join was extended at the Madrid summit on 29 June 2022, with accession protocols signed on 5 July 2022. The first major ratifications came from the United States Senate on 3 August 2022 and the Parliament of the United Kingdom shortly after. The final and most critical ratifications occurred in 2024: the Turkish Grand National Assembly voted to approve on 23 January 2024, and the National Assembly of Hungary followed on 26 February 2024. With all instruments of ratification deposited with the U.S. Department of State in Washington, D.C., Sweden officially acceded to the North Atlantic Treaty on 7 March 2024. The Swedish flag was raised for the first time at NATO headquarters in Brussels alongside those of the other thirty-one allies, completing the historic realignment.

Category:Sweden and NATO Category:2024 in Sweden Category:2024 in international relations Category:History of Sweden (1991–present)