Enlargement as a Security Imperative In a June 2025 address to the European Parliament, Commissioner Marta Kos emphasized the strategic importance of EU enlargement, particularly vis-à-vis Montenegro, describing it as a "security imperative" in a divided geopolitical landscape. She framed enlargement not only as a policy of unification but also as a means to strengthen Europe’s security and prosperity.

Concrete Progress and Policy Orientation Commissioner Kos highlighted Montenegro’s leading position in the accession process, noting the opening of all 33 negotiating chapters and provisional closure of six. She underscored Montenegro’s commitment to meeting benchmarks, with a tangible goal to close all chapters by end-2026. Specifically, she pointed to Montenegro’s progress in rule of law chapters 23 and 24, and pending closure of chapter 5 on public procurement. Nonetheless, she called for intensified reforms, especially regarding alignment with EU visa policies and resolution of bilateral issues critical for advancing chapter 31.

National Sovereignty vs. EU Integration and Increased Supervision Kos’s remarks reveal a tension between Montenegro’s national decisions—illustrated by controversial UAE agreements—and the EU’s expectations for compliance with state aid, transparency, and procurement rules, indicating a push for stronger EU supervision. Moreover, the demand for alignment with EU visa policy signals a move toward deeper integration, potentially limiting national discretion.

Stakeholder Impact EU Enlargement Bodies and National Authorities stand to gain from reinforced credibility through successful accession protocols, but will face intricate negotiations over benchmarks and bilateral disputes. Montenegro’s government confronts increased administrative and policy reform burdens, particularly in judicial and visa matters, while striving to meet stringent EU standards. Montenegrin civil society could see enhanced rule of law and democratic governance but must navigate transitional uncertainties linked to reforms. Lastly, EU taxpayers and consumers may benefit from the expanded and stabilized single market and enhanced regional security, though with possible budgetary commitments to accession support.

Overall, Commissioner Kos's speech offers a relatively detailed roadmap signaling a clear policy push for Montenegro’s EU integration coupled with rigorous reform expectations. The balance between offering encouragement and insisting on compliance encapsulates the pragmatic pace and scope of future enlargement efforts.

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