The History of the Formation and Development of the European Union’s Stabilisation and Association Process for the Western Balkan Countries

Abstract

The article examines the formation and evolution of the Stabilisation and Association Process (SAP) as the European Union’s (EU) central framework for engaging with the Western Balkans after the conflicts of the 1990s. Based on an analysis of key EU documents and scholarly studies, the paper highlights how SAP combined political stabilization with the long-term goal of integration into European structures. It traces the main milestones, including the Cologne (1999) and Feira (2000) European Council decisions, which established conditionality and differentiation as guiding principles. These innovations not only provided incentives for reform but also created a mechanism of strict political oversight, making SAP distinct from the enlargement model applied to Central and Eastern Europe.

The study pays particular attention to the Stabilisation and Association Agreements (SAAs), which since 2001 have served as the legal foundation of EU–Balkan relations. Each agreement institutionalized political dialogue, economic liberalization, and rule-of-law commitments, while also addressing post-conflict challenges such as minority protection and cooperation with the International Criminal Tribunal for the former Yugoslavia. Case studies of Macedonia and Croatia demonstrate how SAAs reflected different national priorities – internal stabilization in the former and international justice in the latter – yet both illustrate the EU’s hybrid approach that linked integration with peacebuilding.

The analysis shows that by the end of the 2000s, all Western Balkan states had entered the SAP framework, creating a comprehensive and region-wide mechanism of engagement. The article argues that SAP represented a turning point: it transformed the region from a security problem into a potential community of future EU members. At the same time, the reliance on conditionality underscored the fragile and reversible nature of the process, making EU membership contingent upon sustained reform. In conclusion, the paper emphasizes the dual role of SAP as both an enlargement policy and a conflict-prevention tool, demonstrating its enduring significance for EU strategy in Southeast Europe.