Security studies have an important position in the discipline of International Relations. Among them the work of the Copenhagen School has contributed to the literature significantly. One of the most prominent theories of the Copenhagen School is the issue of securitization and societal security. Securitization is the process of seeing any issue that causes security concerns as a threat through speech acts and it occurs at the end of the process. On the other hand societal security is a security threat on the identity of the society. The key theme for societal security is the identity. If a society thinks that a subject poses a threat to its own identity societal securitization occurs. One of the most suitable topics for societal securitization is the issue of immigrants. In this book the issue of Syrian refugees in Turkey was analyzed by content analysis of the speeches of the parliamentarians in the Turkish Grand National Assembly and the tweets that were posted on Twitter. While doing this both these two research universes were compared and the development of the subject over the years was examined from the perspective of societal securitization. This book also addresses the various dilemmas and security dilemmas that contribute to this process.