This article examines the impact of European Union's (EU) Counter-Terrorism Strategy on European security, considering recent developments and challenges. This investigation seeks to answer two pivotal questions: (1) How do varying counter-terrorism approaches impact the effectiveness of European security measures against terrorist threats? (2) How does cooperation or divergence in counter-terrorism strategies influence Europe's broader security environment? The research explores key developments in European counter-terrorism cooperation and analyzes the effects of regional cooperation on European security dynamics, drawing on empirical evidence from recent terrorist attacks and counter-terrorism operations. Findings emphasize the need for a comprehensive and coordinated European counter-terrorism strategy, which addresses immediate security concerns and long-term drivers of radicalization and extremism. The research utilizes the method of Library Resources and Documentary Research, analyzing existing literature, academic publications, reports, and relevant documents related to counter-terrorism strategies, European security, and the interplay between terrorism and counter-terrorism in the region. The article also presents a theoretical framework of institutional cooperation to understand the implications of counter-terrorism strategies on European security. It highlights the significance of intelligence sharing, legal harmonization, capacity-building, and addressing challenges within regional and international collaborations.
