In an age of intensified geopolitical competition in the world, the European Union strives to constitute itself as a geopolitical entity having a role in international relations that is beyond a common market and customs union. EU’s strategy to achieve “strategic autonomy” and political declarations on “European sovereignty” as a strategic ambition are steps in that direction. Still, the EU’s development unlike the development of nation-states is connected to a process called “EU enlargement”. The EU enlargement had undergone several phases in the last decades and now is directed towards the eastern part of the continent and towards the remaining part of the southeastern part of the continent, known as the Western Balkans. The article analyses the European integration of the Western Balkan countries through geopolitical perspective and identifies the geopolitical consequences both for the EU and the region if the current stalemate in the process continues.