The rule of law has become the central pillar shaping the European Union’s enlargement policy toward the Western Balkans. In earlier phases of enlargement, economic reform and regulatory harmonization often dominated accession negotiations. However, the experience of integrating Central and Eastern European countries during the 2004–2007 enlargement waves revealed that institutional weaknesses in governance and judicial independence could persist even after accession. As a result, the European Union recalibrated its enlargement strategy, placing the rule of law at the core of accession negotiations. For Western Balkan candidates, including Serbia, Montenegro, Albania, and North Macedonia, progress in judicial independence, anti-corruption enforcement, and democratic institutional integrity now determines the overall pace of integration into the Union.
The EU’s revised enlargement methodology formally reflects this shift. Negotiation chapters related to the judiciary and fundamental rights—primarily Chapter 23 (Judiciary and Fundamental Rights) and Chapter 24 (Justice, Freedom and Security)—are now opened at the beginning of accession negotiations and closed only at the very end of the process. This sequencing ensures that reforms in governance and institutional accountability are sustained throughout the entire negotiation period rather than treated as technical benchmarks that can be addressed late in the accession process. The logic behind this approach is clear: institutional resilience is viewed as the foundation upon which all other policy reforms must rest.
In the Western Balkans, the emphasis on rule-of-law reforms reflects both historical and contemporary challenges. The region emerged from the political fragmentation and conflicts of the 1990s, leaving behind institutional structures that often required significant modernization. Many countries inherited judicial systems characterized by limited independence, weak administrative capacity, and political influence over key appointments. Over the past two decades the EU has encouraged candidate countries to undertake constitutional reforms designed to strengthen judicial autonomy, introduce transparent appointment procedures, and enhance the professional independence of courts and prosecutors.
Serbia provides a particularly illustrative example of the complexities involved in implementing these reforms. The country introduced constitutional amendments in 2022 designed to reduce political influence over judicial appointments. Under the revised framework, the process of appointing judges and prosecutors was shifted away from direct parliamentary control toward specialized judicial councils intended to ensure professional oversight. The reform was widely presented as a milestone in Serbia’s alignment with European standards of judicial independence.
However, institutional reforms on paper do not automatically translate into practical changes in governance. Legal experts and civil society organizations continue to debate the effectiveness of the new institutional framework, particularly regarding the degree of independence enjoyed by prosecutorial authorities. Concerns have also been raised about the pace of judicial case processing and the capacity of courts to handle complex corruption cases involving public officials. These issues illustrate a broader challenge faced by many Western Balkan states: institutional transformation requires not only legal amendments but also sustained administrative capacity building and political commitment.
Corruption remains another central issue shaping EU assessments of the rule of law in the region. Transparency International’s governance indicators continue to place several Western Balkan countries below the EU average in terms of perceived corruption and institutional transparency. Governments have introduced new anti-corruption strategies, strengthened oversight institutions, and expanded transparency requirements for public procurement and financial reporting. Serbia, for instance, has introduced digital procurement platforms and expanded the powers of the Anti-Corruption Agency, which now oversees asset declarations of public officials and monitors conflicts of interest in government institutions.
Despite these initiatives, enforcement remains uneven. High-profile corruption cases involving senior officials often take years to reach final judicial outcomes, contributing to perceptions that the judicial system struggles to address complex political cases. The European Commission has repeatedly emphasized that successful prosecution of corruption cases represents a key benchmark for demonstrating the effectiveness of rule-of-law reforms. Without tangible results in this area, institutional reforms risk being perceived as procedural rather than transformative.
Media freedom constitutes another dimension of the rule-of-law framework that influences accession negotiations. Independent journalism plays a critical role in democratic governance by providing oversight of public institutions and exposing corruption or administrative irregularities. In several Western Balkan countries, media landscapes remain polarized, with debates regarding ownership transparency, editorial independence, and the distribution of state advertising funds. The EU’s enlargement policy therefore increasingly includes monitoring mechanisms that assess the broader environment for freedom of expression and pluralism in media markets.
The political dimension of enlargement is closely connected to these governance challenges. While the accession process is formally based on technical compliance with EU legislation, it also reflects broader political considerations within both candidate countries and the European Union itself. Member states must unanimously approve each stage of the accession process, including the opening and closing of negotiation chapters. As a result, enlargement decisions often involve political negotiations that extend beyond the technical assessment of reform progress.
This political dimension has occasionally created tensions within the enlargement process. Bilateral disputes between member states and candidate countries have sometimes delayed negotiations even when technical reform benchmarks were met. For example, historical and linguistic disagreements influenced negotiations with North Macedonia for several years, demonstrating how political considerations can intersect with the formal enlargement framework.
At the same time, the European Union has sought to strengthen the credibility of its enlargement policy by introducing more transparent monitoring mechanisms. Annual progress reports published by the European Commission provide detailed assessments of reform progress across multiple policy areas, including judicial independence, anti-corruption enforcement, and institutional governance. These reports form the basis for decisions regarding the advancement of negotiation chapters and the allocation of financial support through instruments such as the Instrument for Pre-Accession Assistance (IPA III).
Financial support has become an important tool for supporting governance reforms. Through IPA III, the European Union has allocated several billion euros in funding to Western Balkan countries to support institutional modernization, infrastructure development, and environmental policy reforms. These funds are often tied to specific reform milestones, creating incentives for governments to implement governance improvements that align with EU standards.
The strategic importance of rule-of-law reforms extends beyond the accession process itself. Strong institutions are essential for attracting foreign investment, ensuring legal certainty in business transactions, and supporting long-term economic development. Investors evaluating opportunities in the Western Balkans frequently cite judicial efficiency and regulatory transparency as key factors influencing investment decisions. By strengthening these institutions, candidate countries not only advance their EU accession prospects but also improve their economic competitiveness.
For the European Union, the emphasis on rule-of-law reforms reflects lessons learned from previous enlargements. Ensuring that candidate countries develop robust institutional frameworks before accession helps prevent governance challenges that could undermine the Union’s legal and economic integration. At the same time, maintaining a credible enlargement perspective requires that reform efforts be matched by tangible progress in negotiations. If candidate countries perceive that reforms do not lead to advancement in accession talks, political support for the enlargement process may gradually weaken.
The Western Balkans therefore occupy a critical position in the future of European integration. By successfully implementing governance reforms and strengthening institutional resilience, countries in the region can move closer to full participation in the European political and economic system. The rule of law is not simply a technical requirement for accession; it is the foundation upon which democratic governance, economic stability, and long-term political integration depend.
