The twenty-first century is a period in which migration movements have become a central issue, not only in terms of humanitarian and socioeconomic concerns but also in terms of security, identity, authority, and international relations. In the current global situation, marked by global crises, the increasing influence of non-state actors, fragile regimes, and populist waves, migration has been placed at the center of security politics, both as a result and a cause. This book examines the multidimensional transformations shaped around the axis of "International Migration and Security Policies" through an interdisciplinary approach, casting a critical lens on various aspects of the field.

In the first section, Aykut Karahan discusses how migration intersects with knowledge regimes and crises of belonging through the concepts of ontological security and epistemic violence in his study titled "Immigration, Epistemic Violence, and Ontological Security: The Crisis of Knowledge and Belonging." This section provides a theoretical ground that examines the philosophical and social dimensions of the migration phenomenon in depth.

In the second section, Sibel Yanık Aslan, with her study titled "From State Collapse to Chaos: Security Vacuum and Migration Dynamics in Libya," examines the relationship between state collapse, security vacuum, and migration in Libya and shows how regional security is disintegrating and how this affects migration flows.

In the third section, Erkan Yılmaz, in his study titled "Religion as a Security Issue in Azerbaijan-Iran Relations," analyzes the cross-border effects of religious identities as a security issue in Iran-Azerbaijan relations. The impact of sectarian differences on foreign policy and security perceptions is addressed remarkably in this section.

In the fourth section, Gülşah Özdemir's study titled "Anti-Immigration, Populism and Security Discourses: The Rising Far-Right in Europe" demonstrates examples of how the rising right-wing populism throughout Europe constructs securitizing discourses through anti-immigration sentiment. This analysis is significant in explaining the influence of political discourse on security policies.

In the fifth chapter, Gülşah Özdemir and Bedri Şahin, in their study titled "The Evaluation of Germany's Immigration Policies in Terms of Securitization," evaluate Germany's migration policies based on Barry Buzan's securitization theory, analyzing the security-centered transformations, especially in the post-2015 period.

The sixth and final chapter includes Bedri Şahin's study titled "The Impact of Migration from Conflict Zones to Germany on the Rise of Anti-Immigrant Political Parties: An Analytical Review of AfD and BSW". In this chapter, the impact of migration from crisis regions, such as Syria and Ukraine, on far-right parties in Germany is analyzed in an analytical manner, and the political and social effects are evaluated through the examples of the AfD and BSW.

This work reveals that migration is not only a "mobility" phenomenon but also a "security politics" issue. The book is a comprehensive resource, covering both theoretical and practical aspects, for academics, policymakers, students, and all researchers working in the field of migration security. While each chapter prompts the reader to rethink the relationship between migration and security in a different context, when evaluated holistically, it successfully demonstrates the analytical depth and critical approach that are the book's primary goals. I would like to thank all the authors who contributed to the creation of the book, as well as our academic advisors who supported the evaluation process. I hope that it will provide new intellectual perspectives to our readers.