The International Institute for Middle East and Balkan Studies (IFIMES)[1], based in Ljubljana, Slovenia, has for decades been monitoring and analysing key developments in the Middle East, the Balkans and worldwide. In his article "The Dayton Peace Agreement: successes and challenges in its implementation", academician Mirko Pejanović, PhD, Vice-President of the Academy of Sciences and Arts of Bosnia and Herzegovina (ANUBiH), professor emeritus at the University of Sarajevo, and former member of the Presidency of the Republic of Bosnia and Herzegovina (1992–1996), examines the historical significance and contemporary challenges of this important peace agreement on the occasion of its 30th anniversary.
The Dayton Peace Agreement[2], signed in 1995, marked a historic turning point in preserving the state of Bosnia and Herzegovina at the close of the twentieth century. The consensus reached among the world’s major powers, aimed at ending the three-and-a-half-year war, led to the adoption of an international agreement that safeguarded Bosnia and Herzegovina’s state sovereignty, territorial integrity and international legal personality. Acting through the Contact Group, the UN Security Council members – the United States, the United Kingdom, France, the Russian Federation and the Federal Republic of Germany – created the framework for lasting peace in the country.
Most authors agree that the Dayton Peace Agreement played a crucial role in bringing the war in Bosnia and Herzegovina to an end. At the same time, critics – especially in relation to Annex IV[3] – argue that the constitutional and territorial arrangements, based on ethnicity, have constrained the development of a functional state.
Unlike many other international peace accords, the Dayton Agreement grants international institutions clear powers for its implementation.
The key actors in this process are:
During the first decade of the post-war period (1995–2005), significant progress was made in establishing security and ensuring freedom of movement for citizens throughout Bosnia and Herzegovina, supported by the active involvement of international institutions. In the early post-war years, the Presidency of Bosnia and Herzegovina operated in the National Museum due to the refusal of the then Serb member of the Presidency to use the Presidency building in Sarajevo as the official seat of state institutions.
In the first five years, the High Representative, in cooperation with civil society organisations, designed and imposed solutions for the coat of arms, the flag and the anthem, as the ruling parliamentary parties were unable to reach a consensus.
The parliamentary elections held in 1996, 1998 and 2000, which gave state-level and entity-level parliaments two-year mandates, were intended to accelerate democratic consolidation and strengthen multi-ethnic civic parties, even though ethnic parties continued to dominate the electoral results.
Owing to the lack of consensus among ethnic parties on peacebuilding and the development of state institutions, the Peace Implementation Council (PIC) granted the High Representative the so-called Bonn Powers[4] in 1998, under which he enacted 145 laws falling within the competences of the Parliamentary Assembly of Bosnia and Herzegovina.
These laws enabled the implementation of reforms aimed at consolidating peace and establishing key state institutions. Through these reforms, the State Border Service (later the Border Police) and the Indirect Taxation Authority were established, and the Council of Ministers of Bosnia and Herzegovina was expanded from three to nine ministries, including security, justice, human rights and refugees, transport and communications, the treasury and finance, and defence. This strengthened the executive capacity needed for advancing reforms and supporting Bosnia and Herzegovina’s European Union integration process.
The merger of the entity armies into the joint Armed Forces of Bosnia and Herzegovina stands as one of the most important reforms of the post-Dayton period, enabling the full integration of entity forces and institutions in the defence sector. The development of the Armed Forces of Bosnia and Herzegovina in line with NATO standards paved the way for the country’s gradual integration into the NATO alliance, as set out in the Law on Defence of Bosnia and Herzegovina.
Major reforms were also carried out in the sphere of justice and security: the Court and the Prosecutor’s Office of BiH were established, as well as the High Judicial and Prosecutorial Council (HJPC), while the Intelligence-Security Agency (OSA) and the State Investigation and Protection Agency (SIPA) laid the foundations for a functional state security system.
The full implementation of the Dayton Peace Agreement is taking place through the process of Bosnia and Herzegovina’s integration into the European Union and NATO, which has progressed at a slower pace due to the lack of consensus among the ruling parties in the BiH Parliamentary Assembly. Since 2015, the use of the Bonn Powers by the High Representative of the international community (OHR) has been gradually scaled back.
Geopolitical shifts towards the end of the third decade of the Dayton Agreement’s implementation — particularly the Russian Federation’s aggression against Ukraine in 2022 — threatened peace in Europe but at the same time accelerated the processes of European integration. In this context, the Council of the European Union granted Bosnia and Herzegovina candidate status for EU membership, with negotiations expected to open at the end of 2025.
The blockades of BiH’s institutions and the destructive actions of the National Assembly of the Republika Srpska hampered legislative work and reform efforts; however, during 2025, the rulings of the Court of Bosnia and Herzegovina overcame these obstacles. The dismissal of Milorad Dodik (SNSD) from the position of President of the Republika Srpska marked a turning point in strengthening state institutions and advancing the country’s European integration process.
As long as the political situation in Bosnia and Herzegovina remains unstable, characterised by recurring crises, both minor and major, the presence and engagement of the Office of the High Representative of the international community (OHR) will remain necessary.
Its role is particularly significant in:
Throughout the past three decades, the OHR has intervened through the application of the Bonn Powers whenever the ruling parties failed to reach consensus in the Parliamentary Assembly. This role will remain indispensable until Bosnia and Herzegovina attains full membership in the European Union, while the continuation of the OHR’s mandate in the coming years is directly linked to advancing the country’s integration into the EU and NATO, as well as to preventing new security challenges and threats.
Recommendations for accelerating BiH’s European integration:
A key priority for the OHR is to support the adoption of the European clause in the Constitution of Bosnia and Herzegovina, which would speed up the implementation of the acquis communautaire. The OHR should further apply pressure on parliamentary parties to form a broad coalition for a European, democratic and law-governed Bosnia and Herzegovina following the 2026 elections, enabling the winning parties to demonstrate responsibility for driving forward the EU integration agenda.
The OHR also plays an important role in creating the geopolitical conditions for implementing constitutional reforms essential to speeding up BiH’s European Union integration. Strengthening the democratic capacity of state institutions is envisaged through changes to the structure of the BiH Parliamentary Assembly: the House of Representatives would have 97 members instead of the current 42, while the territorial units for electing representatives would be drawn across entity boundaries. Increasing the number of representatives would allow for more substantive preparation of legislation through committees and commissions, with professional associations and civil society organisations taking on a more active role. At the same time, both the structure and competences of the House of Peoples of the Parliamentary Assembly of Bosnia and Herzegovina would also be reformed.
With regard to the Council of Ministers of BiH, it is proposed that two new ministries be added: the Ministry of Science and Technological Development and the Ministry of Agriculture and Ecology.
Ljubljana/Sarajevo, 20 November 2025
[1] IFIMES - International Institute for Middle East and Balkan Studies, based in Ljubljana, Slovenia, has a special consultative status with the United Nations Economic and Social Council ECOSOC/UN in New York since 2018, and it is the publisher of the international scientific journal "European Perspectives." Available at: https://www.europeanperspectives.org/en
[2] The Dayton Peace Agreement – initialled on 21 November 1995 in Dayton, Ohio, USA, and formally signed on 14 December 1995 in Paris, France – brought an end to the three-and-a-half-year war in Bosnia and Herzegovina and provided international legal confirmation of its sovereignty, territorial integrity and constitutional order. Available at: https://propisi.ks.gov.ba/sites/propisi.ks.gov.ba/files/opci_okvirni_sporazum_za_mir_u_bosni_i_hercegovini.pdf
[3] Annex 4 – Constitution of Bosnia and Herzegovina. Available at: https://www.ustavnisud.ba/public/down/USTAV_BOSNE_I_HERCEGOVINE_bos.pdf
[4] The Bonn Powers of the OHR – a set of competences and authorities vested in the High Representative of the international community (OHR) in Bosnia and Herzegovina, allowing intervention when domestic authorities are unable or unwilling to implement the Dayton Peace Agreement and the laws of Bosnia and Herzegovina. The term derives from the 1997 Bonn Conference in Bonn, Germany, where the mandate of the OHR was formally expanded. The key features of the Bonn Powers include the authority to enact laws and regulations, dismiss officials, impose sanctions, and ensure the implementation of peace and reform measures. The Bonn Powers serve as the international community’s “last resort” for safeguarding institutional functionality and advancing the reform agenda in Bosnia and Herzegovina.
