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EU Operation ALTHEA

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EU Operation ALTHEA
NameOperation ALTHEA
Native nameOperation ALTHEA
PartofCommon Security and Defence Policy
CaptionEU-led peace operation in Bosnia and Herzegovina
DateDecember 2004 – present
PlaceBosnia and Herzegovina, Sarajevo
StatusActive
CommanderHigh Representative / EUFOR commander
ObjectiveStabilisation and support to Bosnia and Herzegovina

EU Operation ALTHEA EU Operation ALTHEA is the European Union military operation deployed to Bosnia and Herzegovina to uphold the Dayton Peace Agreement, support the Office of the High Representative, and maintain a safe and secure environment. It succeeded the NATO-led mission and operates under the Common Security and Defence Policy, coordinating with international organisations and national authorities. The operation combines military, police, and civilian components to assist implementation of peace accords and to contribute to regional stability in the Western Balkans.

Background and mandate

Operation ALTHEA traces its mandate to commitments made at the Dayton Peace Accords, the Bonn Peace Implementation Conference, and successive United Nations Security Council resolutions endorsing international implementation. The mission derives authority from the Treaty on European Union, the Council of the European Union decisions, and Security Council resolutions that reference the Office of the High Representative, the North Atlantic Treaty Organization, and the Organization for Security and Co-operation in Europe. Its mandate encompasses support for the High Representative, liaison with the Presidency of Bosnia and Herzegovina, and assistance to the Armed Forces of Bosnia and Herzegovina, with legal references to the General Framework Agreements and the European Union Special Representatives.

Operational structure and chain of command

ALTHEA's chain of command links the Political and Security Committee, the Military Committee, and the Military Staff in Brussels to the Operational Headquarters, the Force Headquarters deployed in theatre, and the local Force Commander. Command relationships involve the Council of the European Union, the Director General of the European External Action Service, and national military headquarters of contributing states. The operational headquarters interacts with the NATO Headquarters, the International Criminal Tribunal legacy institutions, and the High Representative for Bosnia and Herzegovina, ensuring interoperability with the Ministry of Defence of Bosnia and Herzegovina, the Presidency, and municipal authorities in Sarajevo and Banja Luka.

Force composition and contributing countries

Force composition has varied, with contributions from member states including France, Germany, Italy, the United Kingdom, Spain, Sweden, Poland, Romania, Austria, and the Netherlands, alongside partner states such as Turkey, Norway, and Switzerland. Troop types include infantry, engineering, logistics, intelligence, medical, and aviation elements sourced from the Bundeswehr, the French Armed Forces, the Italian Army, the British Army, the Spanish Ejército, the Swedish Armed Forces, the Polish Armed Forces, and others. Police and rule-of-law advisers have come from national gendarmerie and police services like the Guardia Civil, the Gendarmerie Nationale, the Carabinieri, the Bundespolizei, and the National Police Corps, cooperating with the European Union Police Mission and the European Union Rule of Law Mission.

Major activities and timeline

Key phases include transition from the NATO Stabilisation Force in 2004, deployments supporting refugee return and reconstruction in 2005–2008, crisis response during political tensions in 2012 and 2018, and continued presence through the 2020s addressing security sector reform and capacity-building. Notable operations involved joint patrols around Sarajevo, de-escalation in Brčko, security sector training in Mostar and Tuzla, and support to elections overseen by the Central Election Commission. ALTHEA has carried out operations in coordination with the European Union Monitoring Mission, the NATO-led Resolute Support posture adjustments, and bilateral initiatives from the United States, Russia, China, and regional actors.

The legal basis combines Council Decisions, United Nations Security Council resolutions, the Dayton Peace Agreement Annexes, and Status of Forces Agreements signed with the authorities in Bosnia and Herzegovina. Rules of engagement are aligned with international humanitarian law, the Vienna Convention on Diplomatic Relations where applicable, and national caveats of contributing states, with oversight from the International Committee of the Red Cross in detention and medical contexts. Use-of-force provisions are calibrated to mandate protection of civilians, defence of force, and support for the High Representative's implementation tasks, reflecting precedents in NATO operations, European Court of Human Rights jurisprudence, and International Criminal Court considerations.

Impact and assessments

Assessments by scholars, think tanks, and institutions such as the European Council on Foreign Relations, the International Crisis Group, the RAND Corporation, and academic studies at the London School of Economics and University of Oxford indicate that ALTHEA has contributed to stabilisation, security sector reform, and deterrence against large-scale violence. Critiques from commentators connected to the Balkan Institute networks, local political parties in Republika Srpska and the Federation, and media outlets including Reuters, The New York Times, The Guardian, and Al Jazeera point to limits in addressing political polarisation, economic reform, and return of displaced persons. Independent evaluations reference benchmarks used by the Organisation for Security and Co-operation in Europe, the World Bank, the European Commission, and the United Nations Development Programme to measure progress.

Cooperation with local and international partners

ALTHEA cooperates closely with the Office of the High Representative, the European Union Special Representative, the NATO Headquarters, the Organization for Security and Co-operation in Europe, the United Nations, the International Criminal Tribunal legacy institutions, bilateral embassies such as the Embassy of the United States, the Embassy of Russia, and regional organisations including the Western Balkans Initiative and the Council of Europe. Multilateral coordination includes engagement with the Central Election Commission, municipal administrations in Sarajevo, Banja Luka, and Mostar, the Armed Forces of Bosnia and Herzegovina, Bosnian Constitutional Court interlocutors, civil society organisations, and international financial institutions like the European Investment Bank and the International Monetary Fund.

Category:European Union military operations Category:Bosnia and Herzegovina